Deprecate sodium-test (#68)

* deprecate sodium-test ahrness

* prune dependencies

.gitignore

@@ -1 +1,2 @@
 node_modules
+package-lock.json

README.md

@@ -33,7 +33,7 @@ console.log('Plaintext:', plainText.toString())
 ## API
 
 See [sodium-native](https://github.com/sodium-friends/sodium-native).
-This is a work in progress so all functions are not implemented yet.
+This is a work in progress so not all functions are implemented yet.
 
 This module is organised into individual submodules which can be required
 independently for smaller bundles in the browser. To leverage automatic

crypto_aead.js

@@ -30,7 +30,7 @@ function crypto_aead_chacha20poly1305_ietf_encrypt (c, m, ad, nsec, npub, k) {
 }
 
 function crypto_aead_chacha20poly1305_ietf_encrypt_detached (c, mac, m, ad, nsec, npub, k) {
-  if (ad === null) return crypto_aead_chacha20poly1305_ietf_encrypt(c, mac, m, new Uint8Array(0), nsec, npub, k)
+  if (ad === null) return crypto_aead_chacha20poly1305_ietf_encrypt_detached(c, mac, m, new Uint8Array(0), nsec, npub, k)
 
   assert(c.byteLength === m.byteLength, 'ciphertext should be same length than message')
   assert(npub.byteLength === crypto_aead_chacha20poly1305_ietf_NPUBBYTES,
@@ -91,7 +91,7 @@ function crypto_aead_chacha20poly1305_ietf_decrypt (m, nsec, c, ad, npub, k) {
 }
 
 function crypto_aead_chacha20poly1305_ietf_decrypt_detached (m, nsec, c, mac, ad, npub, k) {
-  if (ad === null) return crypto_aead_chacha20poly1305_ietf_decrypt(m, nsec, c, mac, new Uint8Array(0), npub, k)
+  if (ad === null) return crypto_aead_chacha20poly1305_ietf_decrypt_detached(m, nsec, c, mac, new Uint8Array(0), npub, k)
 
   assert(c.byteLength === m.byteLength, 'message should be same length than ciphertext')
   assert(npub.byteLength === crypto_aead_chacha20poly1305_ietf_NPUBBYTES,
@@ -131,7 +131,7 @@ function crypto_aead_chacha20poly1305_ietf_decrypt_detached (m, nsec, c, mac, ad
   computed_mac.fill(0)
   slen.fill(0)
 
-  if (ret !== 0) {
+  if (!ret) {
     m.fill(0)
     throw new Error('could not verify data')
   }

crypto_auth.js

@@ -0,0 +1,35 @@
+/* eslint-disable camelcase */
+const { crypto_verify_32 } = require('./crypto_verify')
+const Sha512 = require('sha512-universal')
+const assert = require('nanoassert')
+
+const crypto_auth_BYTES = 32
+const crypto_auth_KEYBYTES = 32
+
+function crypto_auth (out, input, k) {
+  assert(out.byteLength === crypto_auth_BYTES, "out should be 'crypto_auth_BYTES' in length")
+  assert(k.byteLength === crypto_auth_KEYBYTES, "key should be 'crypto_auth_KEYBYTES' in length")
+
+  const out0 = new Uint8Array(64)
+  const hmac = Sha512.HMAC(k)
+  hmac.update(input)
+  hmac.digest(out0)
+
+  out.set(out0.subarray(0, 32))
+}
+
+function crypto_auth_verify (h, input, k) {
+  assert(h.byteLength === crypto_auth_BYTES, "h should be 'crypto_auth_BYTES' in length")
+  assert(k.byteLength === crypto_auth_KEYBYTES, "key should be 'crypto_auth_KEYBYTES' in length")
+
+  const correct = Sha512.HMAC(k).update(input).digest()
+
+  return crypto_verify_32(h, 0, correct, 0)
+}
+
+module.exports = {
+  crypto_auth_BYTES,
+  crypto_auth_KEYBYTES,
+  crypto_auth,
+  crypto_auth_verify
+}

crypto_box.js

@@ -3,7 +3,13 @@ const { crypto_hash_sha512 } = require('./crypto_hash')
 const { crypto_scalarmult, crypto_scalarmult_base } = require('./crypto_scalarmult')
 const { randombytes } = require('./randombytes')
 const { crypto_generichash_batch } = require('./crypto_generichash')
-const { crypto_secretbox_open_easy, crypto_secretbox_easy } = require('./crypto_secretbox')
+const { crypto_stream_xsalsa20_MESSAGEBYTES_MAX } = require('./crypto_stream')
+const {
+  crypto_secretbox_open_easy,
+  crypto_secretbox_easy,
+  crypto_secretbox_detached,
+  crypto_secretbox_open_detached
+} = require('./crypto_secretbox')
 const xsalsa20 = require('xsalsa20')
 const assert = require('nanoassert')
 
@@ -15,8 +21,17 @@ const crypto_box_BOXZEROBYTES = 16
 const crypto_box_SEALBYTES = 48
 const crypto_box_SEEDBYTES = 32
 const crypto_box_BEFORENMBYTES = 32
+const crypto_box_MACBYTES = 16
+
+const crypto_box_curve25519xsalsa20poly1305_MACBYTES = 16
+
+const crypto_box_MESSAGEBYTES_MAX =
+  crypto_stream_xsalsa20_MESSAGEBYTES_MAX -
+  crypto_box_curve25519xsalsa20poly1305_MACBYTES
 
 module.exports = {
+  crypto_box_easy,
+  crypto_box_open_easy,
   crypto_box_keypair,
   crypto_box_seed_keypair,
   crypto_box_seal,
@@ -28,7 +43,8 @@ module.exports = {
   crypto_box_BOXZEROBYTES,
   crypto_box_SEALBYTES,
   crypto_box_SEEDBYTES,
-  crypto_box_BEFORENMBYTES
+  crypto_box_BEFORENMBYTES,
+  crypto_box_MACBYTES
 }
 
 function crypto_box_keypair (pk, sk) {
@@ -37,7 +53,6 @@ function crypto_box_keypair (pk, sk) {
   randombytes(sk, 32)
   return crypto_scalarmult_base(pk, sk)
 }
-
 function crypto_box_seed_keypair (pk, sk, seed) {
   assert(pk.byteLength === crypto_box_PUBLICKEYBYTES, "pk should be 'crypto_box_PUBLICKEYBYTES' bytes")
   assert(sk.byteLength === crypto_box_SECRETKEYBYTES, "sk should be 'crypto_box_SECRETKEYBYTES' bytes")
@@ -95,6 +110,87 @@ function crypto_box_seal_open (m, c, pk, sk) {
   return crypto_secretbox_open_easy(m, c.subarray(epk.length), n, k)
 }
 
+function crypto_box_beforenm (k, pk, sk) {
+  const zero = new Uint8Array(16)
+  const s = new Uint8Array(32)
+
+  assert(crypto_scalarmult(s, sk, pk) === 0)
+
+  xsalsa20.core_hsalsa20(k, zero, s, xsalsa20.SIGMA)
+
+  return true
+}
+
+function crypto_box_detached_afternm (c, mac, m, n, k) {
+  return crypto_secretbox_detached(c, mac, m, n, k)
+}
+
+function crypto_box_detached (c, mac, m, n, pk, sk) {
+  check(mac, crypto_box_MACBYTES)
+  check(n, crypto_box_NONCEBYTES)
+  check(pk, crypto_box_PUBLICKEYBYTES)
+  check(sk, crypto_box_SECRETKEYBYTES)
+
+  const k = new Uint8Array(crypto_box_BEFORENMBYTES)
+
+  assert(crypto_box_beforenm(k, pk, sk))
+
+  const ret = crypto_box_detached_afternm(c, mac, m, n, k)
+  cleanup(k)
+
+  return ret
+}
+
+function crypto_box_easy (c, m, n, pk, sk) {
+  assert(
+    c.length >= m.length + crypto_box_MACBYTES,
+    "c should be at least 'm.length + crypto_box_MACBYTES' bytes"
+  )
+  assert(
+    m.length <= crypto_box_MESSAGEBYTES_MAX,
+    "m should be at most 'crypto_box_MESSAGEBYTES_MAX' bytes"
+  )
+
+  return crypto_box_detached(
+    c.subarray(crypto_box_MACBYTES, m.length + crypto_box_MACBYTES),
+    c.subarray(0, crypto_box_MACBYTES),
+    m,
+    n,
+    pk,
+    sk
+  )
+}
+
+function crypto_box_open_detached_afternm (m, c, mac, n, k) {
+  return crypto_secretbox_open_detached(m, c, mac, n, k)
+}
+
+function crypto_box_open_detached (m, c, mac, n, pk, sk) {
+  const k = new Uint8Array(crypto_box_BEFORENMBYTES)
+  assert(crypto_box_beforenm(k, pk, sk))
+
+  const ret = crypto_box_open_detached_afternm(m, c, mac, n, k)
+  cleanup(k)
+
+  return ret
+}
+
+function crypto_box_open_easy (m, c, n, pk, sk) {
+  assert(
+    c.length >= m.length + crypto_box_MACBYTES,
+    "c should be at least 'm.length + crypto_box_MACBYTES' bytes"
+  )
+
+  return crypto_box_open_detached(
+    m,
+    c.subarray(crypto_box_MACBYTES, m.length + crypto_box_MACBYTES),
+    c.subarray(0, crypto_box_MACBYTES),
+    n,
+    pk,
+    sk
+  )
+}
+
 function check (buf, len) {
   if (!buf || (len && buf.length < len)) throw new Error('Argument must be a buffer' + (len ? ' of length ' + len : ''))
 }

crypto_onetimeauth.js

@@ -23,7 +23,6 @@ function crypto_onetimeauth (mac, msg, key) {
   var s = new Poly1305(key)
   s.update(msg, 0, msg.byteLength)
   s.finish(mac, 0)
-  return true
 }
 
 function crypto_onetimeauth_verify (mac, msg, key) {
@@ -33,5 +32,5 @@ function crypto_onetimeauth_verify (mac, msg, key) {
 
   var tmp = new Uint8Array(16)
   crypto_onetimeauth(tmp, msg, key)
-  return crypto_verify_16(mac, 0, tmp, 0) === 0
+  return crypto_verify_16(mac, 0, tmp, 0)
 }

crypto_secretbox.js

@@ -37,7 +37,6 @@ function crypto_secretbox (c, m, n, k) {
     c.subarray(0, crypto_onetimeauth_KEYBYTES)
   )
   c.fill(0, 0, crypto_secretbox_BOXZEROBYTES)
-  return 0
 }
 
 function crypto_secretbox_open (m, c, n, k) {
@@ -69,8 +68,8 @@ function crypto_secretbox_detached (o, mac, msg, n, k) {
 
   const tmp = new Uint8Array(msg.byteLength + mac.byteLength)
   crypto_secretbox_easy(tmp, msg, n, k)
-  o.set(tmp.subarray(0, msg.byteLength))
+  mac.set(tmp.subarray(0, mac.byteLength))
-  mac.set(tmp.subarray(msg.byteLength))
+  o.set(tmp.subarray(mac.byteLength))
   return true
 }
 
@@ -81,8 +80,8 @@ function crypto_secretbox_open_detached (msg, o, mac, n, k) {
   assert(k.byteLength === crypto_secretbox_KEYBYTES, "k must be 'crypto_secretbox_KEYBYTES' bytes")
 
   const tmp = new Uint8Array(o.byteLength + mac.byteLength)
-  tmp.set(o)
+  tmp.set(mac)
-  tmp.set(mac, msg.byteLength)
+  tmp.set(o, mac.byteLength)
   return crypto_secretbox_open_easy(msg, tmp, n, k)
 }
 
@@ -94,9 +93,8 @@ function crypto_secretbox_easy (o, msg, n, k) {
   const m = new Uint8Array(crypto_secretbox_ZEROBYTES + msg.byteLength)
   const c = new Uint8Array(m.byteLength)
   m.set(msg, crypto_secretbox_ZEROBYTES)
-  if (crypto_secretbox(c, m, n, k) === false) return false
+  crypto_secretbox(c, m, n, k)
   o.set(c.subarray(crypto_secretbox_BOXZEROBYTES))
-  return true
 }
 
 function crypto_secretbox_open_easy (msg, box, n, k) {

crypto_secretstream.js

@@ -0,0 +1,271 @@
+/* eslint-disable camelcase */
+const assert = require('nanoassert')
+const { randombytes_buf } = require('./randombytes')
+const {
+  crypto_stream_chacha20_ietf,
+  crypto_stream_chacha20_ietf_xor,
+  crypto_stream_chacha20_ietf_xor_ic,
+  crypto_stream_chacha20_ietf_KEYBYTES
+} = require('./crypto_stream_chacha20')
+const { crypto_core_hchacha20, crypto_core_hchacha20_INPUTBYTES } = require('./internal/hchacha20')
+const Poly1305 = require('./internal/poly1305')
+const { sodium_increment, sodium_is_zero, sodium_memcmp } = require('./helpers')
+
+const crypto_onetimeauth_poly1305_BYTES = 16
+const crypto_secretstream_xchacha20poly1305_COUNTERBYTES = 4
+const crypto_secretstream_xchacha20poly1305_INONCEBYTES = 8
+const crypto_aead_xchacha20poly1305_ietf_KEYBYTES = 32
+const crypto_secretstream_xchacha20poly1305_KEYBYTES = crypto_aead_xchacha20poly1305_ietf_KEYBYTES
+const crypto_aead_xchacha20poly1305_ietf_NPUBBYTES = 24
+const crypto_secretstream_xchacha20poly1305_HEADERBYTES = crypto_aead_xchacha20poly1305_ietf_NPUBBYTES
+const crypto_aead_xchacha20poly1305_ietf_ABYTES = 16
+const crypto_secretstream_xchacha20poly1305_ABYTES = 1 + crypto_aead_xchacha20poly1305_ietf_ABYTES
+const crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX = Number.MAX_SAFE_INTEGER
+const crypto_aead_chacha20poly1305_ietf_MESSAGEBYTES_MAX = Number.MAX_SAFE_INTEGER
+const crypto_secretstream_xchacha20poly1305_TAGBYTES = 1
+const crypto_secretstream_xchacha20poly1305_TAG_MESSAGE = new Uint8Array([0])
+const crypto_secretstream_xchacha20poly1305_TAG_PUSH = new Uint8Array([1])
+const crypto_secretstream_xchacha20poly1305_TAG_REKEY = new Uint8Array([2])
+const crypto_secretstream_xchacha20poly1305_TAG_FINAL = new Uint8Array([crypto_secretstream_xchacha20poly1305_TAG_PUSH | crypto_secretstream_xchacha20poly1305_TAG_REKEY])
+const crypto_secretstream_xchacha20poly1305_STATEBYTES = crypto_secretstream_xchacha20poly1305_KEYBYTES +
+  crypto_secretstream_xchacha20poly1305_INONCEBYTES + crypto_secretstream_xchacha20poly1305_COUNTERBYTES + 8
+
+const KEY_OFFSET = 0
+const NONCE_OFFSET = crypto_secretstream_xchacha20poly1305_KEYBYTES
+const PAD_OFFSET = NONCE_OFFSET + crypto_secretstream_xchacha20poly1305_INONCEBYTES + crypto_secretstream_xchacha20poly1305_COUNTERBYTES
+
+const _pad0 = new Uint8Array(16)
+
+function STORE64_LE (dest, int) {
+  let mul = 1
+  let i = 0
+  dest[0] = int & 0xFF
+  while (++i < 8 && (mul *= 0x100)) {
+    dest[i] = (int / mul) & 0xFF
+  }
+}
+
+function crypto_secretstream_xchacha20poly1305_counter_reset (state) {
+  assert(state.byteLength === crypto_secretstream_xchacha20poly1305_STATEBYTES,
+    'state is should be crypto_secretstream_xchacha20poly1305_STATEBYTES long')
+
+  const nonce = state.subarray(NONCE_OFFSET, PAD_OFFSET)
+  for (let i = 0; i < crypto_secretstream_xchacha20poly1305_COUNTERBYTES; i++) {
+    nonce[i] = 0
+  }
+  nonce[0] = 1
+}
+
+function crypto_secretstream_xchacha20poly1305_keygen (k) {
+  assert(k.length === crypto_secretstream_xchacha20poly1305_KEYBYTES)
+  randombytes_buf(k)
+}
+
+function crypto_secretstream_xchacha20poly1305_init_push (state, out, key) {
+  assert(state.byteLength === crypto_secretstream_xchacha20poly1305_STATEBYTES,
+    'state is should be crypto_secretstream_xchacha20poly1305_STATEBYTES long')
+  assert(out instanceof Uint8Array && out.length === crypto_secretstream_xchacha20poly1305_HEADERBYTES, 'out not byte array of length crypto_secretstream_xchacha20poly1305_HEADERBYTES')
+  assert(key instanceof Uint8Array && key.length === crypto_secretstream_xchacha20poly1305_KEYBYTES, 'key not byte array of length crypto_secretstream_xchacha20poly1305_KEYBYTES')
+
+  const k = state.subarray(KEY_OFFSET, NONCE_OFFSET)
+  const nonce = state.subarray(NONCE_OFFSET, PAD_OFFSET)
+  const pad = state.subarray(PAD_OFFSET)
+
+  randombytes_buf(out, crypto_secretstream_xchacha20poly1305_HEADERBYTES)
+  crypto_core_hchacha20(k, out, key, null)
+  crypto_secretstream_xchacha20poly1305_counter_reset(state)
+  for (let i = 0; i < crypto_secretstream_xchacha20poly1305_INONCEBYTES; i++) {
+    nonce[i + crypto_secretstream_xchacha20poly1305_COUNTERBYTES] = out[i + crypto_core_hchacha20_INPUTBYTES]
+  }
+  pad.fill(0)
+}
+
+function crypto_secretstream_xchacha20poly1305_init_pull (state, _in, key) {
+  assert(state.byteLength === crypto_secretstream_xchacha20poly1305_STATEBYTES,
+    'state is should be crypto_secretstream_xchacha20poly1305_STATEBYTES long')
+  assert(_in instanceof Uint8Array && _in.length === crypto_secretstream_xchacha20poly1305_HEADERBYTES,
+    '_in not byte array of length crypto_secretstream_xchacha20poly1305_HEADERBYTES')
+  assert(key instanceof Uint8Array && key.length === crypto_secretstream_xchacha20poly1305_KEYBYTES,
+    'key not byte array of length crypto_secretstream_xchacha20poly1305_KEYBYTES')
+
+  const k = state.subarray(KEY_OFFSET, NONCE_OFFSET)
+  const nonce = state.subarray(NONCE_OFFSET, PAD_OFFSET)
+  const pad = state.subarray(PAD_OFFSET)
+
+  crypto_core_hchacha20(k, _in, key, null)
+  crypto_secretstream_xchacha20poly1305_counter_reset(state)
+
+  for (let i = 0; i < crypto_secretstream_xchacha20poly1305_INONCEBYTES; i++) {
+    nonce[i + crypto_secretstream_xchacha20poly1305_COUNTERBYTES] = _in[i + crypto_core_hchacha20_INPUTBYTES]
+  }
+  pad.fill(0)
+}
+
+function crypto_secretstream_xchacha20poly1305_rekey (state) {
+  assert(state.byteLength === crypto_secretstream_xchacha20poly1305_STATEBYTES,
+    'state is should be crypto_secretstream_xchacha20poly1305_STATEBYTES long')
+
+  const k = state.subarray(KEY_OFFSET, NONCE_OFFSET)
+  const nonce = state.subarray(NONCE_OFFSET, PAD_OFFSET)
+
+  const new_key_and_inonce = new Uint8Array(
+    crypto_stream_chacha20_ietf_KEYBYTES + crypto_secretstream_xchacha20poly1305_INONCEBYTES)
+  let i
+  for (i = 0; i < crypto_stream_chacha20_ietf_KEYBYTES; i++) {
+    new_key_and_inonce[i] = k[i]
+  }
+  for (i = 0; i < crypto_secretstream_xchacha20poly1305_INONCEBYTES; i++) {
+    new_key_and_inonce[crypto_stream_chacha20_ietf_KEYBYTES + i] =
+      nonce[crypto_secretstream_xchacha20poly1305_COUNTERBYTES + i]
+  }
+  crypto_stream_chacha20_ietf_xor(new_key_and_inonce, new_key_and_inonce, nonce, k)
+  for (i = 0; i < crypto_stream_chacha20_ietf_KEYBYTES; i++) {
+    k[i] = new_key_and_inonce[i]
+  }
+  for (i = 0; i < crypto_secretstream_xchacha20poly1305_INONCEBYTES; i++) {
+    nonce[crypto_secretstream_xchacha20poly1305_COUNTERBYTES + i] =
+      new_key_and_inonce[crypto_stream_chacha20_ietf_KEYBYTES + i]
+  }
+  crypto_secretstream_xchacha20poly1305_counter_reset(state)
+}
+
+function crypto_secretstream_xchacha20poly1305_push (state, out, m, ad, tag) {
+  assert(state.byteLength === crypto_secretstream_xchacha20poly1305_STATEBYTES,
+    'state is should be crypto_secretstream_xchacha20poly1305_STATEBYTES long')
+  if (!ad) ad = new Uint8Array(0)
+
+  const k = state.subarray(KEY_OFFSET, NONCE_OFFSET)
+  const nonce = state.subarray(NONCE_OFFSET, PAD_OFFSET)
+
+  const block = new Uint8Array(64)
+  const slen = new Uint8Array(8)
+
+  assert(crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX <=
+    crypto_aead_chacha20poly1305_ietf_MESSAGEBYTES_MAX)
+
+  crypto_stream_chacha20_ietf(block, nonce, k)
+  const poly = new Poly1305(block)
+  block.fill(0)
+
+  poly.update(ad, 0, ad.byteLength)
+  poly.update(_pad0, 0, (0x10 - ad.byteLength) & 0xf)
+
+  block[0] = tag[0]
+  crypto_stream_chacha20_ietf_xor_ic(block, block, nonce, 1, k)
+
+  poly.update(block, 0, block.byteLength)
+  out[0] = block[0]
+
+  const c = out.subarray(1, out.byteLength)
+  crypto_stream_chacha20_ietf_xor_ic(c, m, nonce, 2, k)
+  poly.update(c, 0, m.byteLength)
+  poly.update(_pad0, 0, (0x10 - block.byteLength + m.byteLength) & 0xf)
+
+  STORE64_LE(slen, ad.byteLength)
+  poly.update(slen, 0, slen.byteLength)
+  STORE64_LE(slen, block.byteLength + m.byteLength)
+  poly.update(slen, 0, slen.byteLength)
+
+  const mac = out.subarray(1 + m.byteLength, out.byteLength)
+  poly.finish(mac, 0)
+
+  assert(crypto_onetimeauth_poly1305_BYTES >=
+    crypto_secretstream_xchacha20poly1305_INONCEBYTES)
+  xor_buf(nonce.subarray(crypto_secretstream_xchacha20poly1305_COUNTERBYTES, nonce.length),
+    mac, crypto_secretstream_xchacha20poly1305_INONCEBYTES)
+  sodium_increment(nonce)
+
+  if ((tag[0] & crypto_secretstream_xchacha20poly1305_TAG_REKEY) !== 0 ||
+    sodium_is_zero(nonce.subarray(0, crypto_secretstream_xchacha20poly1305_COUNTERBYTES))) {
+    crypto_secretstream_xchacha20poly1305_rekey(state)
+  }
+
+  return crypto_secretstream_xchacha20poly1305_ABYTES + m.byteLength
+}
+
+function crypto_secretstream_xchacha20poly1305_pull (state, m, tag, _in, ad) {
+  assert(state.byteLength === crypto_secretstream_xchacha20poly1305_STATEBYTES,
+    'state is should be crypto_secretstream_xchacha20poly1305_STATEBYTES long')
+  if (!ad) ad = new Uint8Array(0)
+
+  const k = state.subarray(KEY_OFFSET, NONCE_OFFSET)
+  const nonce = state.subarray(NONCE_OFFSET, PAD_OFFSET)
+
+  const block = new Uint8Array(64)
+  const slen = new Uint8Array(8)
+  const mac = new Uint8Array(crypto_onetimeauth_poly1305_BYTES)
+
+  assert(_in.byteLength >= crypto_secretstream_xchacha20poly1305_ABYTES,
+    'ciphertext is too short.')
+
+  const mlen = _in.byteLength - crypto_secretstream_xchacha20poly1305_ABYTES
+  crypto_stream_chacha20_ietf(block, nonce, k)
+  const poly = new Poly1305(block)
+  block.fill(0) // sodium_memzero(block, sizeof block);
+
+  poly.update(ad, 0, ad.byteLength)
+  poly.update(_pad0, 0, (0x10 - ad.byteLength) & 0xf)
+
+  block.fill(0) // memset(block, 0, sizeof block);
+  block[0] = _in[0]
+  crypto_stream_chacha20_ietf_xor_ic(block, block, nonce, 1, k)
+
+  tag[0] = block[0]
+  block[0] = _in[0]
+  poly.update(block, 0, block.byteLength)
+
+  const c = _in.subarray(1, _in.length)
+  poly.update(c, 0, mlen)
+
+  poly.update(_pad0, 0, (0x10 - block.byteLength + mlen) & 0xf)
+
+  STORE64_LE(slen, ad.byteLength)
+  poly.update(slen, 0, slen.byteLength)
+  STORE64_LE(slen, block.byteLength + m.byteLength)
+  poly.update(slen, 0, slen.byteLength)
+
+  poly.finish(mac, 0)
+  const stored_mac = _in.subarray(1 + mlen, _in.length)
+
+  if (!sodium_memcmp(mac, stored_mac)) {
+    mac.fill(0)
+    throw new Error('MAC could not be verified.')
+  }
+
+  crypto_stream_chacha20_ietf_xor_ic(m, c.subarray(0, m.length), nonce, 2, k)
+  xor_buf(nonce.subarray(crypto_secretstream_xchacha20poly1305_COUNTERBYTES, nonce.length),
+    mac, crypto_secretstream_xchacha20poly1305_INONCEBYTES)
+  sodium_increment(nonce)
+
+  if ((tag & crypto_secretstream_xchacha20poly1305_TAG_REKEY) !== 0 ||
+    sodium_is_zero(nonce.subarray(0, crypto_secretstream_xchacha20poly1305_COUNTERBYTES))) {
+    crypto_secretstream_xchacha20poly1305_rekey(state)
+  }
+
+  return mlen
+}
+
+function xor_buf (out, _in, n) {
+  for (let i = 0; i < n; i++) {
+    out[i] ^= _in[i]
+  }
+}
+
+module.exports = {
+  crypto_secretstream_xchacha20poly1305_keygen,
+  crypto_secretstream_xchacha20poly1305_init_push,
+  crypto_secretstream_xchacha20poly1305_init_pull,
+  crypto_secretstream_xchacha20poly1305_rekey,
+  crypto_secretstream_xchacha20poly1305_push,
+  crypto_secretstream_xchacha20poly1305_pull,
+  crypto_secretstream_xchacha20poly1305_STATEBYTES,
+  crypto_secretstream_xchacha20poly1305_ABYTES,
+  crypto_secretstream_xchacha20poly1305_HEADERBYTES,
+  crypto_secretstream_xchacha20poly1305_KEYBYTES,
+  crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX,
+  crypto_secretstream_xchacha20poly1305_TAGBYTES,
+  crypto_secretstream_xchacha20poly1305_TAG_MESSAGE,
+  crypto_secretstream_xchacha20poly1305_TAG_PUSH,
+  crypto_secretstream_xchacha20poly1305_TAG_REKEY,
+  crypto_secretstream_xchacha20poly1305_TAG_FINAL
+}

crypto_sign.js

@@ -8,11 +8,19 @@ const {
   inv25519, unpack25519
 } = require('./internal/ed25519')
 const { randombytes } = require('./randombytes')
+const { crypto_scalarmult_BYTES } = require('./crypto_scalarmult.js')
+const { crypto_hash_sha512_BYTES } = require('./crypto_hash.js')
+const assert = require('nanoassert')
 
-const crypto_sign_BYTES = 64
+const crypto_sign_ed25519_PUBLICKEYBYTES = 32
-const crypto_sign_PUBLICKEYBYTES = 32
+const crypto_sign_ed25519_SECRETKEYBYTES = 64
-const crypto_sign_SECRETKEYBYTES = 64
+const crypto_sign_ed25519_SEEDBYTES = 32
-const crypto_sign_SEEDBYTES = 32
+const crypto_sign_ed25519_BYTES = 64
+
+const crypto_sign_BYTES = crypto_sign_ed25519_BYTES
+const crypto_sign_PUBLICKEYBYTES = crypto_sign_ed25519_PUBLICKEYBYTES
+const crypto_sign_SECRETKEYBYTES = crypto_sign_ed25519_SECRETKEYBYTES
+const crypto_sign_SEEDBYTES = crypto_sign_ed25519_SEEDBYTES
 
 module.exports = {
   crypto_sign_keypair,
@@ -24,7 +32,16 @@ module.exports = {
   crypto_sign_BYTES,
   crypto_sign_PUBLICKEYBYTES,
   crypto_sign_SECRETKEYBYTES,
-  crypto_sign_SEEDBYTES
+  crypto_sign_SEEDBYTES,
+  crypto_sign_ed25519_PUBLICKEYBYTES,
+  crypto_sign_ed25519_SECRETKEYBYTES,
+  crypto_sign_ed25519_SEEDBYTES,
+  crypto_sign_ed25519_BYTES,
+  crypto_sign_ed25519_pk_to_curve25519,
+  crypto_sign_ed25519_sk_to_curve25519,
+  crypto_sign_ed25519_sk_to_pk,
+  unpackneg,
+  pack
 }
 
 function set25519 (r, a) {
@@ -85,6 +102,8 @@ function pack (r, p) {
 }
 
 function scalarmult (p, q, s) {
+  // don't mutate q
+  var h = [gf(q[0]), gf(q[1]), gf(q[2]), gf(q[3])]
   var b, i
   set25519(p[0], gf0)
   set25519(p[1], gf1)
@@ -92,10 +111,10 @@ function scalarmult (p, q, s) {
   set25519(p[3], gf0)
   for (i = 255; i >= 0; --i) {
     b = (s[(i / 8) | 0] >> (i & 7)) & 1
-    cswap(p, q, b)
+    cswap(p, h, b)
-    add(q, p)
+    add(h, p)
     add(p, p)
-    cswap(p, q, b)
+    cswap(p, h, b)
   }
 }
 
@@ -126,7 +145,6 @@ function crypto_sign_keypair (pk, sk, seeded) {
   pack(pk, p)
 
   for (i = 0; i < 32; i++) sk[i + 32] = pk[i]
-  return 0
 }
 
 function crypto_sign_seed_keypair (pk, sk, seed) {
@@ -242,16 +260,18 @@ function unpackneg (r, p) {
 
   S(chk, r[0])
   M(chk, chk, den)
-  if (neq25519(chk, num)) M(r[0], r[0], I)
+  if (!neq25519(chk, num)) M(r[0], r[0], I)
 
   S(chk, r[0])
   M(chk, chk, den)
-  if (neq25519(chk, num)) return -1
+  if (!neq25519(chk, num)) return false
 
-  if (par25519(r[0]) === (p[31] >> 7)) Z(r[0], gf0, r[0])
+  if (par25519(r[0]) === (p[31] >> 7)) {
+    Z(r[0], gf(), r[0])
+  }
 
   M(r[3], r[0], r[1])
-  return 0
+  return true
 }
 
 /* eslint-disable no-unused-vars */
@@ -270,7 +290,7 @@ function crypto_sign_open (msg, sm, pk) {
   mlen = -1
   if (n < 64) return false
 
-  if (unpackneg(q, pk)) return false
+  if (!unpackneg(q, pk)) return false
 
   for (i = 0; i < n; i++) m[i] = sm[i]
   for (i = 0; i < 32; i++) m[i + 32] = pk[i]
@@ -283,7 +303,7 @@ function crypto_sign_open (msg, sm, pk) {
   pack(t, p)
 
   n -= 64
-  if (crypto_verify_32(sm, 0, t, 0)) {
+  if (!crypto_verify_32(sm, 0, t, 0)) {
     for (i = 0; i < n; i++) m[i] = 0
     return false
     // throw new Error('crypto_sign_open failed')
@@ -317,6 +337,133 @@ function neq25519 (a, b) {
   return crypto_verify_32(c, 0, d, 0)
 }
 
-function check (buf, len) {
+function ed25519_mul_l (p, q) {
-  if (!buf || (len && buf.length < len)) throw new Error('Argument must be a buffer' + (len ? ' of length ' + len : ''))
+  scalarmult(p, q, L)
+}
+
+function ed25519_is_on_main_subgroup (p) {
+  var pl = [gf(), gf(), gf(), gf()]
+
+  ed25519_mul_l(pl, p)
+
+  var zero = 0
+  for (let i = 0; i < 16; i++) {
+    zero |= (pl[0][i] & 0xffff)
+  }
+
+  return zero === 0
+}
+
+function crypto_sign_ed25519_pk_to_curve25519 (x25519_pk, ed25519_pk) {
+  check(x25519_pk, crypto_sign_PUBLICKEYBYTES)
+  check(ed25519_pk, crypto_sign_ed25519_PUBLICKEYBYTES)
+
+  var a = [gf(), gf(), gf(), gf()]
+  var x = gf([1])
+  var one_minus_y = gf([1])
+
+  assert(
+    isSmallOrder(ed25519_pk) &&
+    unpackneg(a, ed25519_pk) &&
+    ed25519_is_on_main_subgroup(a), 'Cannot convert key: bad point')
+
+  for (let i = 0; i < a.length; i++) {
+    pack25519(x25519_pk, a[i])
+  }
+
+  Z(one_minus_y, one_minus_y, a[1])
+  A(x, x, a[1])
+  inv25519(one_minus_y, one_minus_y)
+  M(x, x, one_minus_y)
+  pack25519(x25519_pk, x)
+
+  return 0
+}
+
+function isSmallOrder (s) {
+  Uint8Array.from([])
+
+  var bad_points = [
+    // 0 (order 4)
+    Uint8Array.from([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]),
+
+    // 1 (order 1)
+    Uint8Array.from([0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]),
+
+    // 2707385501144840649318225287225658788936804267575313519463743609750303402022(order 8)
+    Uint8Array.from([0x26, 0xe8, 0x95, 0x8f, 0xc2, 0xb2, 0x27, 0xb0, 0x45, 0xc3,
+      0xf4, 0x89, 0xf2, 0xef, 0x98, 0xf0, 0xd5, 0xdf, 0xac, 0x05, 0xd3,
+      0xc6, 0x33, 0x39, 0xb1, 0x38, 0x02, 0x88, 0x6d, 0x53, 0xfc, 0x05]),
+
+    // 55188659117513257062467267217118295137698188065244968500265048394206261417927 (order 8)
+    Uint8Array.from([0xc7, 0x17, 0x6a, 0x70, 0x3d, 0x4d, 0xd8, 0x4f, 0xba, 0x3c,
+      0x0b, 0x76, 0x0d, 0x10, 0x67, 0x0f, 0x2a, 0x20, 0x53, 0xfa, 0x2c,
+      0x39, 0xcc, 0xc6, 0x4e, 0xc7, 0xfd, 0x77, 0x92, 0xac, 0x03, 0x7a]),
+
+    // p-1 (order 2)
+    Uint8Array.from([0xec, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f]),
+
+    //  p (=0 order 4)
+    Uint8Array.from([0xed, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f]),
+
+    // p + 1 (=1 order 1)
+    Uint8Array.from([0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f])
+  ]
+
+  var c = new Uint8Array(7)
+  var j
+
+  check(bad_points, 7)
+  for (let i = 0; i < bad_points.length; i++) {
+    for (j = 0; j < 31; j++) {
+      c[i] |= s[j] ^ bad_points[i][j]
+    }
+  }
+
+  for (let i = 0; i < bad_points.length; i++) {
+    c[i] |= (s[j] & 0x7f) ^ bad_points[i][j]
+  }
+
+  var k = 0
+  for (let i = 0; i < bad_points.length; i++) {
+    k |= (c[i] - 1)
+  }
+
+  return ((k >> 8) & 1) === 0
+}
+
+function crypto_sign_ed25519_sk_to_pk (pk, sk) {
+  check(pk, crypto_sign_ed25519_PUBLICKEYBYTES)
+  pk.set(sk.subarray(crypto_sign_ed25519_SEEDBYTES))
+  return pk
+}
+
+function crypto_sign_ed25519_sk_to_curve25519 (curveSk, edSk) {
+  assert(curveSk && curveSk.byteLength === crypto_scalarmult_BYTES, "curveSk must be 'crypto_sign_SECRETKEYBYTES' long")
+  assert(edSk && edSk.byteLength === crypto_sign_ed25519_SECRETKEYBYTES, "edSk must be 'crypto_sign_ed25519_SECRETKEYBYTES' long")
+
+  var h = new Uint8Array(crypto_hash_sha512_BYTES)
+  crypto_hash(h, edSk, 32)
+
+  h[0] &= 248
+  h[31] &= 127
+  h[31] |= 64
+
+  curveSk.set(h.subarray(0, crypto_scalarmult_BYTES))
+  h.fill(0)
+  return curveSk
+}
+
+function check (buf, len, arg = 'Argument') {
+  if (!buf || (len && buf.length < len)) throw new Error(arg + ' must be a buffer' + (len ? ' of length ' + len : ''))
 }

crypto_stream.js

@@ -6,6 +6,7 @@ if (new Uint16Array([1])[0] !== 1) throw new Error('Big endian architecture is n
 exports.crypto_stream_KEYBYTES = 32
 exports.crypto_stream_NONCEBYTES = 24
 exports.crypto_stream_PRIMITIVE = 'xsalsa20'
+exports.crypto_stream_xsalsa20_MESSAGEBYTES_MAX = Number.MAX_SAFE_INTEGER
 
 exports.crypto_stream = function (c, nonce, key) {
   c.fill(0)

crypto_verify.js

@@ -1,7 +1,8 @@
 /* eslint-disable camelcase */
 module.exports = {
   crypto_verify_16,
-  crypto_verify_32
+  crypto_verify_32,
+  crypto_verify_64
 }
 
 function vn (x, xi, y, yi, n) {
@@ -16,9 +17,13 @@ Object.defineProperty(module.exports, 'vn', {
 })
 
 function crypto_verify_16 (x, xi, y, yi) {
-  return vn(x, xi, y, yi, 16)
+  return vn(x, xi, y, yi, 16) === 0
 }
 
 function crypto_verify_32 (x, xi, y, yi) {
-  return vn(x, xi, y, yi, 32)
+  return vn(x, xi, y, yi, 32) === 0
+}
+
+function crypto_verify_64 (x, xi, y, yi) {
+  return vn(x, xi, y, yi, 64) === 0
 }

index.js

@@ -12,6 +12,7 @@ forward(require('./randombytes'))
 forward(require('./memory'))
 forward(require('./helpers'))
 forward(require('./crypto_verify'))
+forward(require('./crypto_auth'))
 forward(require('./crypto_box'))
 forward(require('./crypto_generichash'))
 forward(require('./crypto_hash'))
@@ -22,6 +23,7 @@ forward(require('./crypto_aead'))
 forward(require('./crypto_onetimeauth'))
 forward(require('./crypto_scalarmult'))
 forward(require('./crypto_secretbox'))
+forward(require('./crypto_secretstream'))
 forward(require('./crypto_shorthash'))
 forward(require('./crypto_sign'))
 forward(require('./crypto_stream'))

internal/hchacha20.js

@@ -0,0 +1,128 @@
+/* eslint-disable camelcase */
+const { sodium_malloc } = require('../memory')
+const assert = require('nanoassert')
+
+if (new Uint16Array([1])[0] !== 1) throw new Error('Big endian architecture is not supported.')
+
+const crypto_core_hchacha20_OUTPUTBYTES = 32
+const crypto_core_hchacha20_INPUTBYTES = 16
+const crypto_core_hchacha20_KEYBYTES = 32
+const crypto_core_hchacha20_CONSTBYTES = 16
+
+function ROTL32 (x, b) {
+  x &= 0xFFFFFFFF
+  b &= 0xFFFFFFFF
+  return (x << b) | (x >>> (32 - b))
+}
+
+function LOAD32_LE (src, offset) {
+  assert(src instanceof Uint8Array, 'src not byte array')
+  let w = src[offset]
+  w |= src[offset + 1] << 8
+  w |= src[offset + 2] << 16
+  w |= src[offset + 3] << 24
+  return w
+}
+
+function STORE32_LE (dest, int, offset) {
+  assert(dest instanceof Uint8Array, 'dest not byte array')
+  var mul = 1
+  var i = 0
+  dest[offset] = int & 0xFF // grab bottom byte
+  while (++i < 4 && (mul *= 0x100)) {
+    dest[offset + i] = (int / mul) & 0xFF
+  }
+}
+
+function QUARTERROUND (l, A, B, C, D) {
+  l[A] += l[B]
+  l[D] = ROTL32(l[D] ^ l[A], 16)
+  l[C] += l[D]
+  l[B] = ROTL32(l[B] ^ l[C], 12)
+  l[A] += l[B]
+  l[D] = ROTL32(l[D] ^ l[A], 8)
+  l[C] += l[D]
+  l[B] = ROTL32(l[B] ^ l[C], 7)
+}
+
+function crypto_core_hchacha20 (out, _in, k, c) {
+  assert(out instanceof Uint8Array && out.length === 32, 'out is not an array of 32 bytes')
+  assert(k instanceof Uint8Array && k.length === 32, 'k is not an array of 32 bytes')
+  assert(c === null || (c instanceof Uint8Array && c.length === 16), 'c is not null or an array of 16 bytes')
+
+  let i = 0
+  const x = new Uint32Array(16)
+  if (!c) {
+    x[0] = 0x61707865
+    x[1] = 0x3320646E
+    x[2] = 0x79622D32
+    x[3] = 0x6B206574
+  } else {
+    x[0] = LOAD32_LE(c, 0)
+    x[1] = LOAD32_LE(c, 4)
+    x[2] = LOAD32_LE(c, 8)
+    x[3] = LOAD32_LE(c, 12)
+  }
+  x[4] = LOAD32_LE(k, 0)
+  x[5] = LOAD32_LE(k, 4)
+  x[6] = LOAD32_LE(k, 8)
+  x[7] = LOAD32_LE(k, 12)
+  x[8] = LOAD32_LE(k, 16)
+  x[9] = LOAD32_LE(k, 20)
+  x[10] = LOAD32_LE(k, 24)
+  x[11] = LOAD32_LE(k, 28)
+  x[12] = LOAD32_LE(_in, 0)
+  x[13] = LOAD32_LE(_in, 4)
+  x[14] = LOAD32_LE(_in, 8)
+  x[15] = LOAD32_LE(_in, 12)
+
+  for (i = 0; i < 10; i++) {
+    QUARTERROUND(x, 0, 4, 8, 12)
+    QUARTERROUND(x, 1, 5, 9, 13)
+    QUARTERROUND(x, 2, 6, 10, 14)
+    QUARTERROUND(x, 3, 7, 11, 15)
+    QUARTERROUND(x, 0, 5, 10, 15)
+    QUARTERROUND(x, 1, 6, 11, 12)
+    QUARTERROUND(x, 2, 7, 8, 13)
+    QUARTERROUND(x, 3, 4, 9, 14)
+  }
+
+  STORE32_LE(out, x[0], 0)
+  STORE32_LE(out, x[1], 4)
+  STORE32_LE(out, x[2], 8)
+  STORE32_LE(out, x[3], 12)
+  STORE32_LE(out, x[12], 16)
+  STORE32_LE(out, x[13], 20)
+  STORE32_LE(out, x[14], 24)
+  STORE32_LE(out, x[15], 28)
+
+  return 0
+}
+
+function crypto_core_hchacha20_outputbytes () {
+  return crypto_core_hchacha20_OUTPUTBYTES
+}
+
+function crypto_core_hchacha20_inputbytes () {
+  return crypto_core_hchacha20_INPUTBYTES
+}
+
+function crypto_core_hchacha20_keybytes () {
+  return crypto_core_hchacha20_KEYBYTES
+}
+
+function crypto_core_hchacha20_constbytes () {
+  return crypto_core_hchacha20_CONSTBYTES
+}
+
+module.exports = {
+  crypto_core_hchacha20_INPUTBYTES,
+  LOAD32_LE,
+  STORE32_LE,
+  QUARTERROUND,
+  crypto_core_hchacha20,
+  crypto_core_hchacha20_outputbytes,
+  crypto_core_hchacha20_inputbytes,
+  crypto_core_hchacha20_keybytes,
+  crypto_core_hchacha20_constbytes
+}

memory.js

@@ -1,21 +1,28 @@
 /* eslint-disable camelcase */
-var MessageChannel = global.MessageChannel
-if (MessageChannel == null) ({ MessageChannel } = require('worker' + '_threads'))
 
 function sodium_malloc (n) {
   return new Uint8Array(n)
 }
 
-const sink = new MessageChannel()
 function sodium_free (n) {
   sodium_memzero(n)
-  sink.port1.postMessage(n.buffer, [n.buffer])
+  loadSink().port1.postMessage(n.buffer, [n.buffer])
 }
 
 function sodium_memzero (arr) {
   arr.fill(0)
 }
 
+var sink
+
+function loadSink () {
+  if (sink) return sink
+  var MessageChannel = globalThis.MessageChannel
+  if (MessageChannel == null) ({ MessageChannel } = require('worker' + '_threads'))
+  sink = new MessageChannel()
+  return sink
+}
+
 module.exports = {
   sodium_malloc,
   sodium_free,

package.json

@@ -1,37 +1,38 @@
 {
   "name": "sodium-javascript",
-  "version": "0.6.2",
+  "version": "0.8.0",
   "description": "WIP - a pure javascript version of sodium-native",
   "main": "index.js",
   "dependencies": {
     "blake2b": "^2.1.1",
     "chacha20-universal": "^1.0.4",
     "nanoassert": "^2.0.0",
-    "sha256-universal": "^1.0.1",
+    "sha256-universal": "^1.1.0",
-    "sha512-universal": "^1.0.1",
+    "sha512-universal": "^1.1.0",
     "siphash24": "^1.0.1",
     "xsalsa20": "^1.0.0"
   },
   "devDependencies": {
+    "brittle": "^3.2.1",
     "browserify": "^16.5.1",
-    "sodium-test": "^0.9.0",
+    "standard": "^15.0.1"
-    "standard": "^14.3.4",
-    "tape-run": "^7.0.0"
   },
   "standard": {
     "ignore": [
-      "/internal/**/*.js"
+      "/internal/**/*.js",
-    ]
+      "/test/fixtures/*.js"
+    ],
+    "rules": {
+      "camelcase": "off"
+    }
   },
   "browser": {
-    "crypto": false
+    "crypto": false,
-  },
+    "worker_threads": false
-  "react-native": {
-    "crypto": "crypto"
   },
   "scripts": {
     "pretest": "standard",
-    "test": "node test.js",
+    "test": "brittle test/*.js",
     "test-browser": "browserify test.js | tape-run"
   },
   "repository": {

randombytes.js

@@ -2,7 +2,7 @@ var assert = require('nanoassert')
 
 var randombytes = (function () {
   var QUOTA = 65536 // limit for QuotaExceededException
-  var crypto = global.crypto || global.msCrypto
+  var crypto = globalThis.crypto || globalThis.msCrypto
 
   function browserBytes (out, n) {
     for (let i = 0; i < n; i += QUOTA) {

test.js

@@ -1,3 +0,0 @@
-require('sodium-test')(require('.'))
-
-if (typeof window !== 'undefined') window.close()

test/crypto_aead_chacha20poly1305_ietf.js

@@ -0,0 +1,285 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const b4a = require('b4a')
+const sodium = require('..')
+
+test('constants', function (t) {
+  t.is(typeof sodium.crypto_aead_chacha20poly1305_ietf_ABYTES, 'number')
+  t.is(typeof sodium.crypto_aead_chacha20poly1305_ietf_KEYBYTES, 'number')
+  t.is(typeof sodium.crypto_aead_chacha20poly1305_ietf_NPUBBYTES, 'number')
+  t.is(typeof sodium.crypto_aead_chacha20poly1305_ietf_NSECBYTES, 'number')
+  t.is(sodium.crypto_aead_chacha20poly1305_ietf_NSECBYTES, 0)
+  t.is(typeof sodium.crypto_aead_chacha20poly1305_ietf_MESSAGEBYTES_MAX, 'number')
+  t.is(sodium.crypto_aead_chacha20poly1305_ietf_MESSAGEBYTES_MAX, Number.MAX_SAFE_INTEGER) // to make sure, see note in binding.cc
+})
+
+test('ported from libsodium', function (t) {
+  const mlen = 114
+  const adlen = 12
+  const clen = mlen + sodium.crypto_aead_chacha20poly1305_ietf_ABYTES
+
+  const firstkey = b4a.from([
+    0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+    0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+    0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+    0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
+  ])
+
+  const message = b4a.from('Ladies and Gentlemen of the class of \'99: If I could offer you only one tip for the future, sunscreen would be it.')
+
+  const m = sodium.sodium_malloc(mlen)
+  const nonce = b4a.from([
+    0x07, 0x00, 0x00, 0x00, 0x40, 0x41, 0x42, 0x43,
+    0x44, 0x45, 0x46, 0x47
+  ])
+  t.is(nonce.length, sodium.crypto_aead_chacha20poly1305_ietf_NPUBBYTES)
+
+  const ad = b4a.from([
+    0x50, 0x51, 0x52, 0x53, 0xc0, 0xc1, 0xc2, 0xc3,
+    0xc4, 0xc5, 0xc6, 0xc7
+  ])
+  t.is(ad.length, adlen)
+
+  const c = sodium.sodium_malloc(clen)
+  const detachedc = sodium.sodium_malloc(mlen)
+
+  const mac = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_ABYTES)
+
+  const m2 = sodium.sodium_malloc(mlen)
+
+  let foundclen = 0
+  let foundmaclen = 0
+  let m2len = 0
+
+  let i = 0
+
+  t.is(message.length, mlen)
+  b4a.copy(message, m)
+
+  foundclen = sodium.crypto_aead_chacha20poly1305_ietf_encrypt(c, m, ad, null, nonce, firstkey)
+  t.is(foundclen, mlen + sodium.crypto_aead_chacha20poly1305_ietf_ABYTES)
+
+  const exp1 = new Uint8Array([
+    0xd3, 0x1a, 0x8d, 0x34, 0x64, 0x8e, 0x60, 0xdb, 0x7b, 0x86, 0xaf, 0xbc,
+    0x53, 0xef, 0x7e, 0xc2, 0xa4, 0xad, 0xed, 0x51, 0x29, 0x6e, 0x08, 0xfe,
+    0xa9, 0xe2, 0xb5, 0xa7, 0x36, 0xee, 0x62, 0xd6, 0x3d, 0xbe, 0xa4, 0x5e,
+    0x8c, 0xa9, 0x67, 0x12, 0x82, 0xfa, 0xfb, 0x69, 0xda, 0x92, 0x72, 0x8b,
+    0x1a, 0x71, 0xde, 0x0a, 0x9e, 0x06, 0x0b, 0x29, 0x05, 0xd6, 0xa5, 0xb6,
+    0x7e, 0xcd, 0x3b, 0x36, 0x92, 0xdd, 0xbd, 0x7f, 0x2d, 0x77, 0x8b, 0x8c,
+    0x98, 0x03, 0xae, 0xe3, 0x28, 0x09, 0x1b, 0x58, 0xfa, 0xb3, 0x24, 0xe4,
+    0xfa, 0xd6, 0x75, 0x94, 0x55, 0x85, 0x80, 0x8b, 0x48, 0x31, 0xd7, 0xbc,
+    0x3f, 0xf4, 0xde, 0xf0, 0x8e, 0x4b, 0x7a, 0x9d, 0xe5, 0x76, 0xd2, 0x65,
+    0x86, 0xce, 0xc6, 0x4b, 0x61, 0x16, 0x1a, 0xe1, 0x0b, 0x59, 0x4f, 0x09,
+    0xe2, 0x6a, 0x7e, 0x90, 0x2e, 0xcb, 0xd0, 0x60, 0x06, 0x91
+  ])
+
+  t.alike(c, exp1)
+
+  foundmaclen = sodium.crypto_aead_chacha20poly1305_ietf_encrypt_detached(detachedc, mac, m, ad, null, nonce, firstkey)
+
+  t.is(foundmaclen, sodium.crypto_aead_chacha20poly1305_ietf_ABYTES)
+  const exp0 = c.slice(0, mlen)
+
+  t.alike(detachedc, exp0)
+
+  m2len = sodium.crypto_aead_chacha20poly1305_ietf_decrypt(m2, null, c, ad, nonce, firstkey)
+  t.is(m2len, mlen)
+
+  t.alike(m, m2)
+
+  m2.fill(0)
+  sodium.crypto_aead_chacha20poly1305_ietf_decrypt_detached(m2, null, c.slice(0, mlen), mac, ad, nonce, firstkey)
+
+  t.alike(m, m2)
+
+  for (i = 0; i < clen; i++) {
+    c[i] ^= (i + 1)
+    t.exception.all(_ => sodium.crypto_aead_chacha20poly1305_ietf_decrypt(m2, null, c, ad, nonce, firstkey))
+    if (b4a.equals(m, m2)) t.fail()
+    c[i] ^= (i + 1)
+  }
+
+  foundclen = sodium.crypto_aead_chacha20poly1305_ietf_encrypt(c, m, null, null, nonce, firstkey)
+  t.is(foundclen, clen)
+
+  const exp2 = new Uint8Array([
+    0xd3, 0x1a, 0x8d, 0x34, 0x64, 0x8e, 0x60, 0xdb, 0x7b, 0x86, 0xaf, 0xbc,
+    0x53, 0xef, 0x7e, 0xc2, 0xa4, 0xad, 0xed, 0x51, 0x29, 0x6e, 0x08, 0xfe,
+    0xa9, 0xe2, 0xb5, 0xa7, 0x36, 0xee, 0x62, 0xd6, 0x3d, 0xbe, 0xa4, 0x5e,
+    0x8c, 0xa9, 0x67, 0x12, 0x82, 0xfa, 0xfb, 0x69, 0xda, 0x92, 0x72, 0x8b,
+    0x1a, 0x71, 0xde, 0x0a, 0x9e, 0x06, 0x0b, 0x29, 0x05, 0xd6, 0xa5, 0xb6,
+    0x7e, 0xcd, 0x3b, 0x36, 0x92, 0xdd, 0xbd, 0x7f, 0x2d, 0x77, 0x8b, 0x8c,
+    0x98, 0x03, 0xae, 0xe3, 0x28, 0x09, 0x1b, 0x58, 0xfa, 0xb3, 0x24, 0xe4,
+    0xfa, 0xd6, 0x75, 0x94, 0x55, 0x85, 0x80, 0x8b, 0x48, 0x31, 0xd7, 0xbc,
+    0x3f, 0xf4, 0xde, 0xf0, 0x8e, 0x4b, 0x7a, 0x9d, 0xe5, 0x76, 0xd2, 0x65,
+    0x86, 0xce, 0xc6, 0x4b, 0x61, 0x16, 0x6a, 0x23, 0xa4, 0x68, 0x1f, 0xd5,
+    0x94, 0x56, 0xae, 0xa1, 0xd2, 0x9f, 0x82, 0x47, 0x72, 0x16
+  ])
+
+  t.alike(c, exp2)
+
+  m2len = sodium.crypto_aead_chacha20poly1305_ietf_decrypt(m2, null, c, null, nonce, firstkey)
+  t.is(m2len, mlen)
+
+  t.alike(m2, m)
+
+  b4a.copy(m, c)
+
+  foundclen = sodium.crypto_aead_chacha20poly1305_ietf_encrypt(c, c.slice(0, mlen), null, null, nonce, firstkey)
+
+  t.is(foundclen, clen, 'clen is properly set (adlen=0)')
+
+  const exp3 = new Uint8Array([
+    0xd3, 0x1a, 0x8d, 0x34, 0x64, 0x8e, 0x60, 0xdb, 0x7b, 0x86, 0xaf, 0xbc,
+    0x53, 0xef, 0x7e, 0xc2, 0xa4, 0xad, 0xed, 0x51, 0x29, 0x6e, 0x08, 0xfe,
+    0xa9, 0xe2, 0xb5, 0xa7, 0x36, 0xee, 0x62, 0xd6, 0x3d, 0xbe, 0xa4, 0x5e,
+    0x8c, 0xa9, 0x67, 0x12, 0x82, 0xfa, 0xfb, 0x69, 0xda, 0x92, 0x72, 0x8b,
+    0x1a, 0x71, 0xde, 0x0a, 0x9e, 0x06, 0x0b, 0x29, 0x05, 0xd6, 0xa5, 0xb6,
+    0x7e, 0xcd, 0x3b, 0x36, 0x92, 0xdd, 0xbd, 0x7f, 0x2d, 0x77, 0x8b, 0x8c,
+    0x98, 0x03, 0xae, 0xe3, 0x28, 0x09, 0x1b, 0x58, 0xfa, 0xb3, 0x24, 0xe4,
+    0xfa, 0xd6, 0x75, 0x94, 0x55, 0x85, 0x80, 0x8b, 0x48, 0x31, 0xd7, 0xbc,
+    0x3f, 0xf4, 0xde, 0xf0, 0x8e, 0x4b, 0x7a, 0x9d, 0xe5, 0x76, 0xd2, 0x65,
+    0x86, 0xce, 0xc6, 0x4b, 0x61, 0x16, 0x6a, 0x23, 0xa4, 0x68, 0x1f, 0xd5,
+    0x94, 0x56, 0xae, 0xa1, 0xd2, 0x9f, 0x82, 0x47, 0x72, 0x16
+  ])
+
+  t.alike(c, exp3)
+
+  const decrypted = sodium.sodium_malloc(c.byteLength - sodium.crypto_aead_chacha20poly1305_ietf_ABYTES)
+  m2len = sodium.crypto_aead_chacha20poly1305_ietf_decrypt(decrypted, null, c, null, nonce, firstkey)
+  t.is(m2len, mlen, 'm2len is properly set (adlen=0)')
+
+  t.alike(m, decrypted, 'm == c (adlen=0)')
+})
+
+test.skip('keygen', function (t) {
+  const key1 = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_KEYBYTES)
+  const key2 = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_KEYBYTES)
+
+  sodium.crypto_aead_chacha20poly1305_ietf_keygen(key1)
+  sodium.crypto_aead_chacha20poly1305_ietf_keygen(key2)
+
+  t.unlike(key1, key2)
+})
+
+test.skip('different keys', function (t) {
+  const m = b4a.from('Ladies and Gentlemen of the class of \'99: If I could offer you only one tip for the future, sunscreen would be it.')
+
+  const key1 = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_KEYBYTES)
+  const key2 = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_KEYBYTES)
+  sodium.crypto_aead_chacha20poly1305_ietf_keygen(key1)
+  sodium.crypto_aead_chacha20poly1305_ietf_keygen(key2)
+
+  const nonce = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_NPUBBYTES)
+  sodium.randombytes_buf(nonce)
+
+  const clen = m.byteLength + sodium.crypto_aead_chacha20poly1305_ietf_ABYTES
+  const c1 = sodium.sodium_malloc(clen)
+  const c2 = sodium.sodium_malloc(clen)
+
+  const m1 = sodium.sodium_malloc(m.byteLength)
+  const m2 = sodium.sodium_malloc(m.byteLength)
+
+  t.is(sodium.crypto_aead_chacha20poly1305_ietf_encrypt(c1, m, null, null, nonce, key1), clen)
+  t.absent(c1.equals(c2))
+  t.absent(c1.equals(m))
+  t.is(sodium.crypto_aead_chacha20poly1305_ietf_encrypt(c2, m, null, null, nonce, key2), clen)
+  t.absent(c1.equals(c2))
+  t.absent(c2.equals(m))
+
+  t.exception.all(_ => sodium.crypto_aead_chacha20poly1305_ietf_decrypt(m1, null, c1, null, nonce, key2))
+  t.exception.all(_ => sodium.crypto_aead_chacha20poly1305_ietf_decrypt(m2, null, c2, null, nonce, key1))
+
+  t.is(sodium.crypto_aead_chacha20poly1305_ietf_decrypt(m1, null, c1, null, nonce, key1), m.byteLength)
+  t.ok(m.equals(m1))
+  t.is(sodium.crypto_aead_chacha20poly1305_ietf_decrypt(m2, null, c2, null, nonce, key2), m.byteLength)
+  t.ok(m.equals(m2))
+})
+
+test.skip('different nonce', function (t) {
+  const m = b4a.from('Ladies and Gentlemen of the class of \'99: If I could offer you only one tip for the future, sunscreen would be it.')
+
+  const key = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_KEYBYTES)
+  sodium.crypto_aead_chacha20poly1305_ietf_keygen(key)
+
+  const n1 = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_NPUBBYTES)
+  const n2 = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_NPUBBYTES)
+  sodium.randombytes_buf(n1)
+  sodium.randombytes_buf(n2)
+
+  const clen = m.byteLength + sodium.crypto_aead_chacha20poly1305_ietf_ABYTES
+  const c1 = sodium.sodium_malloc(clen)
+  const c2 = sodium.sodium_malloc(clen)
+
+  const m1 = sodium.sodium_malloc(m.byteLength)
+  const m2 = sodium.sodium_malloc(m.byteLength)
+
+  t.is(sodium.crypto_aead_chacha20poly1305_ietf_encrypt(c1, m, null, null, n1, key), clen)
+  t.absent(c1.equals(c2))
+  t.absent(c1.equals(m))
+  t.is(sodium.crypto_aead_chacha20poly1305_ietf_encrypt(c2, m, null, null, n2, key), clen)
+  t.absent(c1.equals(c2))
+  t.absent(c2.equals(m))
+
+  t.exception.all(_ => sodium.crypto_aead_chacha20poly1305_ietf_decrypt(m1, null, c1, null, n2, key))
+  t.exception.all(_ => sodium.crypto_aead_chacha20poly1305_ietf_decrypt(m2, null, c2, null, n1, key))
+
+  t.is(sodium.crypto_aead_chacha20poly1305_ietf_decrypt(m1, null, c1, null, n1, key), m.byteLength)
+  t.ok(m.equals(m1))
+  t.is(sodium.crypto_aead_chacha20poly1305_ietf_decrypt(m2, null, c2, null, n2, key), m.byteLength)
+  t.ok(m.equals(m2))
+})
+
+test.skip('detached -> non-detached', function (t) {
+  const m = b4a.from('Ladies and Gentlemen of the class of \'99: If I could offer you only one tip for the future, sunscreen would be it.')
+  m.secure = true
+
+  const key = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_KEYBYTES)
+  sodium.crypto_aead_chacha20poly1305_ietf_keygen(key)
+
+  const nonce = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_NPUBBYTES)
+  sodium.randombytes_buf(nonce)
+
+  const mac = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_ABYTES)
+  const clen = m.byteLength
+  const c = sodium.sodium_malloc(clen)
+
+  t.is(sodium.crypto_aead_chacha20poly1305_ietf_encrypt_detached(c, mac, m, null, null, nonce, key), mac.byteLength)
+
+  const m1 = sodium.sodium_malloc(m.byteLength)
+  t.is(sodium.crypto_aead_chacha20poly1305_ietf_decrypt(m1, null, b4a.concat([c, mac]), null, nonce, key), m.byteLength)
+
+  t.alike(m, m1)
+})
+
+test.skip('non-detached -> detached', function (t) {
+  const m = b4a.from('Ladies and Gentlemen of the class of \'99: If I could offer you only one tip for the future, sunscreen would be it.')
+  m.secure = true
+
+  const key = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_KEYBYTES)
+  sodium.crypto_aead_chacha20poly1305_ietf_keygen(key)
+
+  const nonce = sodium.sodium_malloc(sodium.crypto_aead_chacha20poly1305_ietf_NPUBBYTES)
+  sodium.randombytes_buf(nonce)
+
+  const clen = m.byteLength + sodium.crypto_aead_chacha20poly1305_ietf_ABYTES
+  const c = sodium.sodium_malloc(clen)
+
+  t.is(sodium.crypto_aead_chacha20poly1305_ietf_encrypt(c, m, null, null, nonce, key), c.byteLength)
+
+  const m1 = sodium.sodium_malloc(m.byteLength)
+  const csub = c.subarray(0, clen - sodium.crypto_aead_chacha20poly1305_ietf_ABYTES)
+  const macsub = c.subarray(csub.byteLength)
+  sodium.crypto_aead_chacha20poly1305_ietf_decrypt_detached(m1, null, csub, macsub, null, nonce, key)
+
+  t.alike(m, m1)
+})
+
+/**
+ * Need to test in-place encryption
+ * detach can talk to non detach
+ * encrypt - decrypt
+ * different nonce
+ * different key
+ * return values
+ */

test/crypto_auth.js

@@ -0,0 +1,219 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('crypto_auth', function (t) {
+  const key = Buffer.alloc(sodium.crypto_auth_KEYBYTES)
+  sodium.randombytes_buf(key)
+
+  const mac = Buffer.alloc(sodium.crypto_auth_BYTES)
+  const value = Buffer.from('Hej, Verden')
+
+  sodium.crypto_auth(mac, value, key)
+
+  t.not(mac, Buffer.alloc(mac.length), 'mac not blank')
+  t.absent(sodium.crypto_auth_verify(Buffer.alloc(mac.length), value, key), 'does not verify')
+  t.ok(sodium.crypto_auth_verify(mac, value, key), 'verifies')
+})
+
+test('crypto_auth #1', t => {
+  // "Test Case 2" from RFC 4231
+  const key = stringToArray('Jefe', 32)
+  const c = stringToArray('what do ya want for nothing?')
+  const c1 = stringToArray('wwhat do ya want for nothing')
+
+  const a = new Uint8Array(sodium.crypto_auth_BYTES)
+
+  const exp = [
+    new Uint8Array([
+      0x16, 0x4b, 0x7a, 0x7b, 0xfc, 0xf8, 0x19, 0xe2,
+      0xe3, 0x95, 0xfb, 0xe7, 0x3b, 0x56, 0xe0, 0xa3,
+      0x87, 0xbd, 0x64, 0x22, 0x2e, 0x83, 0x1f, 0xd6,
+      0x10, 0x27, 0x0c, 0xd7, 0xea, 0x25, 0x05, 0x54
+    ]),
+    new Uint8Array([
+      0x7b, 0x9d, 0x83, 0x38, 0xeb, 0x1e, 0x3d, 0xdd,
+      0xba, 0x8a, 0x9a, 0x35, 0x08, 0xd0, 0x34, 0xa1,
+      0xec, 0xbe, 0x75, 0x11, 0x37, 0xfa, 0x1b, 0xcb,
+      0xa0, 0xf9, 0x2a, 0x3e, 0x6d, 0xfc, 0x79, 0x80
+    ]),
+    new Uint8Array([
+      0xb9, 0xd1, 0x4c, 0x51, 0xa6, 0xd4, 0xdd, 0x41,
+      0x60, 0x4e, 0xb0, 0x6c, 0x9c, 0x24, 0x0f, 0x1f,
+      0x64, 0xf1, 0x43, 0xb5, 0xcf, 0xde, 0xa3, 0x71,
+      0x29, 0xb2, 0x8b, 0xb7, 0x5d, 0x13, 0x71, 0xd3
+    ])
+  ]
+
+  sodium.crypto_auth(a, c, key)
+  t.alike(a, exp[0])
+  t.ok(sodium.crypto_auth_verify(exp[0], c, key))
+
+  a.fill(0)
+  sodium.crypto_auth(a, c1, key)
+  t.alike(a, exp[1])
+  t.ok(sodium.crypto_auth_verify(exp[1], c1, key))
+
+  // Empty message tests
+  a.fill(0)
+  sodium.crypto_auth(a, new Uint8Array(0), key)
+  t.alike(a, exp[2])
+  t.ok(sodium.crypto_auth_verify(exp[2], new Uint8Array(0), key))
+  t.end()
+})
+
+test('crypto_auth', function (t) {
+  const key = stringToArray('Jefe', 32)
+  const c = stringToArray('what do ya want for nothing?')
+  const a = new Uint8Array(sodium.crypto_auth_BYTES)
+  const expected = new Uint8Array([
+    0x16, 0x4b, 0x7a, 0x7b, 0xfc, 0xf8, 0x19, 0xe2, 0xe3, 0x95, 0xfb, 0xe7,
+    0x3b, 0x56, 0xe0, 0xa3, 0x87, 0xbd, 0x64, 0x22, 0x2e, 0x83, 0x1f, 0xd6,
+    0x10, 0x27, 0x0c, 0xd7, 0xea, 0x25, 0x05, 0x54
+  ])
+
+  sodium.crypto_auth(a, c, key)
+
+  t.alike(a, expected)
+  t.ok(sodium.crypto_auth_verify(a, c, key))
+
+  c[Math.floor(Math.random() * c.length)] += 1
+  t.absent(sodium.crypto_auth_verify(a, c, key))
+
+  t.end()
+})
+
+test('wrong keylength', t => {
+  const a = new Uint8Array(32)
+  const c = new Uint8Array(0)
+
+  for (let i = 0; i < 128; i++) {
+    if (i === 32) continue
+    const k = new Uint8Array(i)
+    try {
+      sodium.crypto_auth(a, c, k)
+      t.fail('failed on test #' + i)
+    } catch (e) {
+      try {
+        sodium.crypto_auth_verify(a, c, k)
+        t.fail('failed on test #' + i)
+      } catch (e) {
+        try {
+          sodium.crypto_auth_verify(k, c, a)
+          t.fail('failed on test #' + i)
+        } catch {}
+      }
+    }
+  }
+
+  t.pass('should not accept bad input length')
+  t.end()
+})
+
+test('crypto_auth constants', t => {
+  t.is(sodium.crypto_auth_BYTES, 32)
+  t.is(sodium.crypto_auth_KEYBYTES, 32)
+  t.end()
+})
+
+test('rfc4231 test case #6', t => {
+  const keys = [
+    new Uint8Array([
+      0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
+      0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
+      0x0b, 0x0b, 0x0b, 0x0b, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+    ]),
+    new Uint8Array([
+      0x4a, 0x65, 0x66, 0x65, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+    ]),
+    new Uint8Array([
+      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+      0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+      0xaa, 0xaa, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+    ]),
+    new Uint8Array([
+      0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+      0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
+      0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
+      0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+    ])
+  ]
+
+  const data = [
+    new Uint8Array([
+      0x48, 0x69, 0x20, 0x54, 0x68, 0x65, 0x72, 0x65
+    ]),
+    new Uint8Array([
+      0x77, 0x68, 0x61, 0x74, 0x20, 0x64, 0x6f, 0x20,
+      0x79, 0x61, 0x20, 0x77, 0x61, 0x6e, 0x74, 0x20,
+      0x66, 0x6f, 0x72, 0x20, 0x6e, 0x6f, 0x74, 0x68,
+      0x69, 0x6e, 0x67, 0x3f
+    ]),
+    new Uint8Array([
+      0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+      0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+      0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+      0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+      0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+      0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+      0xdd, 0xdd
+    ]),
+    new Uint8Array([
+      0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+      0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+      0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+      0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+      0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+      0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+      0xcd, 0xcd
+    ])
+  ]
+
+  const exp = [
+    new Uint8Array([
+      0x87, 0xaa, 0x7c, 0xde, 0xa5, 0xef, 0x61, 0x9d,
+      0x4f, 0xf0, 0xb4, 0x24, 0x1a, 0x1d, 0x6c, 0xb0,
+      0x23, 0x79, 0xf4, 0xe2, 0xce, 0x4e, 0xc2, 0x78,
+      0x7a, 0xd0, 0xb3, 0x05, 0x45, 0xe1, 0x7c, 0xde
+    ]),
+    new Uint8Array([
+      0x16, 0x4b, 0x7a, 0x7b, 0xfc, 0xf8, 0x19, 0xe2,
+      0xe3, 0x95, 0xfb, 0xe7, 0x3b, 0x56, 0xe0, 0xa3,
+      0x87, 0xbd, 0x64, 0x22, 0x2e, 0x83, 0x1f, 0xd6,
+      0x10, 0x27, 0x0c, 0xd7, 0xea, 0x25, 0x05, 0x54
+    ]),
+    new Uint8Array([
+      0xfa, 0x73, 0xb0, 0x08, 0x9d, 0x56, 0xa2, 0x84,
+      0xef, 0xb0, 0xf0, 0x75, 0x6c, 0x89, 0x0b, 0xe9,
+      0xb1, 0xb5, 0xdb, 0xdd, 0x8e, 0xe8, 0x1a, 0x36,
+      0x55, 0xf8, 0x3e, 0x33, 0xb2, 0x27, 0x9d, 0x39
+    ]),
+    new Uint8Array([
+      0xb0, 0xba, 0x46, 0x56, 0x37, 0x45, 0x8c, 0x69,
+      0x90, 0xe5, 0xa8, 0xc5, 0xf6, 0x1d, 0x4a, 0xf7,
+      0xe5, 0x76, 0xd9, 0x7f, 0xf9, 0x4b, 0x87, 0x2d,
+      0xe7, 0x6f, 0x80, 0x50, 0x36, 0x1e, 0xe3, 0xdb
+    ])
+  ]
+
+  const a = new Uint8Array(sodium.crypto_auth_BYTES)
+
+  for (let i = 0; i < keys.length; i++) {
+    sodium.crypto_auth(a, data[i], keys[i])
+    t.alike(a, exp[i])
+    t.ok(sodium.crypto_auth_verify(exp[i], data[i], keys[i]))
+  }
+
+  t.end()
+})
+
+function stringToArray (s, size = s.length) {
+  const array = new Uint8Array(size)
+  array.set(s.split('').map((c) => c.charCodeAt(0)))
+  return array
+}

test/crypto_box.js

@@ -0,0 +1,305 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('crypto_box_seed_keypair', function (t) {
+  const pk = Buffer.alloc(sodium.crypto_box_PUBLICKEYBYTES)
+  const sk = Buffer.alloc(sodium.crypto_box_SECRETKEYBYTES)
+  const seed = Buffer.alloc(sodium.crypto_box_SEEDBYTES, 'lo')
+
+  t.exception.all(function () {
+    sodium.crypto_box_seed_keypair()
+  }, 'should validate input')
+
+  t.exception.all(function () {
+    sodium.crypto_box_seed_keypair(Buffer.alloc(0), Buffer.alloc(0), Buffer.alloc(0))
+  }, 'should validate input length')
+
+  sodium.crypto_box_seed_keypair(pk, sk, seed)
+
+  const eSk = '8661a95d21b134adc02881022ad86d37f32a230d537b525b997bce27aa745afc'
+  const ePk = '425c5ba523e70411c77300bb48dd846562e6c1fcf0142d81d2567d650ce76c3b'
+
+  t.alike(pk.toString('hex'), ePk, 'seeded public key')
+  t.alike(sk.toString('hex'), eSk, 'seeded secret key')
+})
+
+test('crypto_box_keypair', function (t) {
+  const pk = Buffer.alloc(sodium.crypto_box_PUBLICKEYBYTES)
+  const sk = Buffer.alloc(sodium.crypto_box_SECRETKEYBYTES)
+
+  sodium.crypto_box_keypair(pk, sk)
+
+  t.not(pk, Buffer.alloc(pk.length), 'made public key')
+  t.not(sk, Buffer.alloc(sk.length), 'made secret key')
+
+  t.exception.all(function () {
+    sodium.crypto_box_keypair()
+  }, 'should validate input')
+
+  t.exception.all(function () {
+    sodium.crypto_box_keypair(Buffer.alloc(0), Buffer.alloc(0))
+  }, 'should validate input length')
+})
+
+test('crypto_box_detached', function (t) {
+  const pk = Buffer.alloc(sodium.crypto_box_PUBLICKEYBYTES)
+  const sk = Buffer.alloc(sodium.crypto_box_SECRETKEYBYTES)
+  const nonce = Buffer.alloc(sodium.crypto_box_NONCEBYTES)
+
+  sodium.crypto_box_keypair(pk, sk)
+
+  const message = Buffer.from('Hello, World!')
+  const mac = Buffer.alloc(sodium.crypto_box_MACBYTES)
+  const cipher = Buffer.alloc(message.length)
+
+  sodium.crypto_box_detached(cipher, mac, message, nonce, pk, sk)
+
+  t.not(cipher, Buffer.alloc(cipher.length), 'not blank')
+
+  const plain = Buffer.alloc(cipher.length)
+  t.absent(sodium.crypto_box_open_detached(plain, cipher, Buffer.alloc(mac.length), nonce, pk, sk), 'does not decrypt')
+  t.ok(sodium.crypto_box_open_detached(plain, cipher, mac, nonce, pk, sk), 'decrypts')
+  t.alike(plain, message, 'same message')
+})
+
+test('crypto_box_easy', function (t) {
+  const pk = Buffer.alloc(sodium.crypto_box_PUBLICKEYBYTES)
+  const sk = Buffer.alloc(sodium.crypto_box_SECRETKEYBYTES)
+  const nonce = Buffer.alloc(sodium.crypto_box_NONCEBYTES)
+
+  sodium.crypto_box_keypair(pk, sk)
+
+  const message = Buffer.from('Hello, World!')
+  const cipher = Buffer.alloc(message.length + sodium.crypto_box_MACBYTES)
+
+  sodium.crypto_box_easy(cipher, message, nonce, pk, sk)
+
+  t.not(cipher, Buffer.alloc(cipher.length), 'not blank')
+
+  const plain = Buffer.alloc(cipher.length - sodium.crypto_box_MACBYTES)
+  t.absent(sodium.crypto_box_open_easy(plain, Buffer.alloc(cipher.length), nonce, pk, sk), 'does not decrypt')
+  t.ok(sodium.crypto_box_open_easy(plain, cipher, nonce, pk, sk), 'decrypts')
+  t.alike(plain, message, 'same message')
+})
+
+test('crypto_box_seal', function (t) {
+  const pk = Buffer.alloc(sodium.crypto_box_PUBLICKEYBYTES)
+  const sk = Buffer.alloc(sodium.crypto_box_SECRETKEYBYTES)
+
+  sodium.crypto_box_keypair(pk, sk)
+
+  const pk2 = Buffer.alloc(sodium.crypto_box_PUBLICKEYBYTES)
+  const sk2 = Buffer.alloc(sodium.crypto_box_SECRETKEYBYTES)
+
+  sodium.crypto_box_keypair(pk2, sk2)
+
+  const message = Buffer.from('Hello, sealed World!')
+  const cipher = Buffer.alloc(message.length + sodium.crypto_box_SEALBYTES)
+
+  sodium.crypto_box_seal(cipher, message, pk)
+  t.not(cipher, message, 'did not encrypt!')
+
+  t.not(cipher, Buffer.alloc(cipher.length), 'not blank')
+
+  const plain = Buffer.alloc(cipher.length - sodium.crypto_box_SEALBYTES)
+  t.absent(sodium.crypto_box_seal_open(plain, cipher, pk2, sk2), 'does not decrypt')
+  t.ok(sodium.crypto_box_seal_open(plain, cipher, pk, sk), 'decrypts')
+  t.alike(plain, message, 'same message')
+})
+
+test('crypto_box_seal/crypto_box_seal_open self-decrypt', function (t) {
+  const pubKey = Buffer.alloc(sodium.crypto_box_PUBLICKEYBYTES)
+  const secret = Buffer.alloc(sodium.crypto_box_SECRETKEYBYTES)
+
+  sodium.crypto_box_keypair(pubKey, secret)
+
+  const msg = Buffer.from('hello world')
+  const cipher = Buffer.alloc(sodium.crypto_box_SEALBYTES + msg.length)
+  sodium.crypto_box_seal(cipher, msg, pubKey)
+
+  const out = Buffer.alloc(cipher.length - sodium.crypto_box_SEALBYTES)
+  sodium.crypto_box_seal_open(out, cipher, pubKey, secret)
+  t.alike(out.toString(), msg.toString())
+  t.end()
+})
+
+test('crypto_box_seal_open cross-decrypt', function (t) {
+  const pubKey = Buffer.from(
+    'e0bb844ae3f48bb04323c8dfe7c34cf86608db2e2112f927953060c80506287f', 'hex')
+  const secret = Buffer.from(
+    '036a9de1ecc9d152cf39fed1b3e15bf761ae39a299031adc011cc9809041abfa', 'hex')
+  const cipher = Buffer.from(
+    '249912e916ad8bcf96a3f9b750da2703' +
+    '2eccdf83b5cff0d6a59a8bbe0bcd5823' +
+    '5de9fbca55bd5416c754e5e0e0fe2f0c' +
+    '4e50df0cb302f1c4378f80', 'hex')
+
+  const out = Buffer.alloc(cipher.length - sodium.crypto_box_SEALBYTES)
+  sodium.crypto_box_seal_open(out, cipher, pubKey, secret)
+  t.alike(out.toString(), 'hello world')
+  t.end()
+})
+
+test('crypto_box_seed_keypair', function (t) {
+  const seed = Buffer.from([
+    0x77, 0x07, 0x6d, 0x0a, 0x73, 0x18, 0xa5,
+    0x7d, 0x3c, 0x16, 0xc1, 0x72, 0x51, 0xb2,
+    0x66, 0x45, 0xdf, 0x4c, 0x2f, 0x87, 0xeb,
+    0xc0, 0x99, 0x2a, 0xb1, 0x77, 0xfb, 0xa5,
+    0x1d, 0xb9, 0x2c, 0x2a
+  ])
+
+  const expPk = Buffer.from([
+    0xed, 0x77, 0x49, 0xb4, 0xd9, 0x89, 0xf6, 0x95,
+    0x7f, 0x3b, 0xfd, 0xe6, 0xc5, 0x67, 0x67, 0xe9,
+    0x88, 0xe2, 0x1c, 0x9f, 0x87, 0x84, 0xd9, 0x1d,
+    0x61, 0x00, 0x11, 0xcd, 0x55, 0x3f, 0x9b, 0x06
+  ])
+
+  const expSk = Buffer.from([
+    0xac, 0xcd, 0x44, 0xeb, 0x8e, 0x93, 0x31, 0x9c,
+    0x05, 0x70, 0xbc, 0x11, 0x00, 0x5c, 0x0e, 0x01,
+    0x89, 0xd3, 0x4f, 0xf0, 0x2f, 0x6c, 0x17, 0x77,
+    0x34, 0x11, 0xad, 0x19, 0x12, 0x93, 0xc9, 0x8f
+  ])
+
+  const sk = Buffer.alloc(32)
+  const pk = Buffer.alloc(32)
+
+  sodium.crypto_box_seed_keypair(pk, sk, seed)
+
+  t.alike(pk, expPk)
+  t.alike(sk, expSk)
+
+  t.end()
+})
+
+test('crypto_box_easy', (t) => {
+  const alicesk = new Uint8Array([
+    0x77, 0x07, 0x6d, 0x0a, 0x73, 0x18, 0xa5, 0x7d, 0x3c, 0x16, 0xc1, 0x72,
+    0x51, 0xb2, 0x66, 0x45, 0xdf, 0x4c, 0x2f, 0x87, 0xeb, 0xc0, 0x99, 0x2a,
+    0xb1, 0x77, 0xfb, 0xa5, 0x1d, 0xb9, 0x2c, 0x2a
+  ])
+  const bobpk = new Uint8Array([
+    0xde, 0x9e, 0xdb, 0x7d, 0x7b, 0x7d, 0xc1, 0xb4, 0xd3, 0x5b, 0x61, 0xc2,
+    0xec, 0xe4, 0x35, 0x37, 0x3f, 0x83, 0x43, 0xc8, 0x5b, 0x78, 0x67, 0x4d,
+    0xad, 0xfc, 0x7e, 0x14, 0x6f, 0x88, 0x2b, 0x4f
+  ])
+  const nonce = new Uint8Array([
+    0x69, 0x69, 0x6e, 0xe9, 0x55, 0xb6, 0x2b, 0x73, 0xcd, 0x62, 0xbd, 0xa8,
+    0x75, 0xfc, 0x73, 0xd6, 0x82, 0x19, 0xe0, 0x03, 0x6b, 0x7a, 0x0b, 0x37
+  ])
+  const m = new Uint8Array([
+    0xbe, 0x07, 0x5f, 0xc5, 0x3c, 0x81, 0xf2, 0xd5, 0xcf, 0x14, 0x13, 0x16,
+    0xeb, 0xeb, 0x0c, 0x7b, 0x52, 0x28, 0xc5, 0x2a, 0x4c, 0x62, 0xcb, 0xd4,
+    0x4b, 0x66, 0x84, 0x9b, 0x64, 0x24, 0x4f, 0xfc, 0xe5, 0xec, 0xba, 0xaf,
+    0x33, 0xbd, 0x75, 0x1a, 0x1a, 0xc7, 0x28, 0xd4, 0x5e, 0x6c, 0x61, 0x29,
+    0x6c, 0xdc, 0x3c, 0x01, 0x23, 0x35, 0x61, 0xf4, 0x1d, 0xb6, 0x6c, 0xce,
+    0x31, 0x4a, 0xdb, 0x31, 0x0e, 0x3b, 0xe8, 0x25, 0x0c, 0x46, 0xf0, 0x6d,
+    0xce, 0xea, 0x3a, 0x7f, 0xa1, 0x34, 0x80, 0x57, 0xe2, 0xf6, 0x55, 0x6a,
+    0xd6, 0xb1, 0x31, 0x8a, 0x02, 0x4a, 0x83, 0x8f, 0x21, 0xaf, 0x1f, 0xde,
+    0x04, 0x89, 0x77, 0xeb, 0x48, 0xf5, 0x9f, 0xfd, 0x49, 0x24, 0xca, 0x1c,
+    0x60, 0x90, 0x2e, 0x52, 0xf0, 0xa0, 0x89, 0xbc, 0x76, 0x89, 0x70, 0x40,
+    0xe0, 0x82, 0xf9, 0x37, 0x76, 0x38, 0x48, 0x64, 0x5e, 0x07, 0x05
+  ])
+
+  const c = new Uint8Array(147)
+  sodium.crypto_box_easy(c, m, nonce, bobpk, alicesk)
+
+  const expected1 = new Uint8Array([
+    0xf3, 0xff, 0xc7, 0x70, 0x3f, 0x94, 0x00, 0xe5, 0x2a, 0x7d, 0xfb, 0x4b,
+    0x3d, 0x33, 0x05, 0xd9, 0x8e, 0x99, 0x3b, 0x9f, 0x48, 0x68, 0x12, 0x73,
+    0xc2, 0x96, 0x50, 0xba, 0x32, 0xfc, 0x76, 0xce, 0x48, 0x33, 0x2e, 0xa7,
+    0x16, 0x4d, 0x96, 0xa4, 0x47, 0x6f, 0xb8, 0xc5, 0x31, 0xa1, 0x18, 0x6a,
+    0xc0, 0xdf, 0xc1, 0x7c, 0x98, 0xdc, 0xe8, 0x7b, 0x4d, 0xa7, 0xf0, 0x11,
+    0xec, 0x48, 0xc9, 0x72, 0x71, 0xd2, 0xc2, 0x0f, 0x9b, 0x92, 0x8f, 0xe2,
+    0x27, 0x0d, 0x6f, 0xb8, 0x63, 0xd5, 0x17, 0x38, 0xb4, 0x8e, 0xee, 0xe3,
+    0x14, 0xa7, 0xcc, 0x8a, 0xb9, 0x32, 0x16, 0x45, 0x48, 0xe5, 0x26, 0xae,
+    0x90, 0x22, 0x43, 0x68, 0x51, 0x7a, 0xcf, 0xea, 0xbd, 0x6b, 0xb3, 0x73,
+    0x2b, 0xc0, 0xe9, 0xda, 0x99, 0x83, 0x2b, 0x61, 0xca, 0x01, 0xb6, 0xde,
+    0x56, 0x24, 0x4a, 0x9e, 0x88, 0xd5, 0xf9, 0xb3, 0x79, 0x73, 0xf6, 0x22,
+    0xa4, 0x3d, 0x14, 0xa6, 0x59, 0x9b, 0x1f, 0x65, 0x4c, 0xb4, 0x5a, 0x74,
+    0xe3, 0x55, 0xa5
+  ])
+
+  t.alike(c, expected1, 'encrypts correctly')
+
+  // This test isn't found upstream, but it seems necessary to have at least
+  // one crypto_box_open_easy() working since the next test diverges.
+  const o = new Uint8Array(131)
+  t.ok(sodium.crypto_box_open_easy(o, expected1, nonce, bobpk, alicesk))
+  t.alike(o, m, 'decrypts correctly')
+
+  const guardPage = new Uint8Array(0)
+
+  t.execution(() => sodium.crypto_box_easy(
+    c.subarray(0, sodium.crypto_box_MACBYTES),
+    guardPage,
+    nonce,
+    bobpk,
+    alicesk
+  ))
+
+  const expected2 = new Uint8Array([
+    0x25, 0x39, 0x12, 0x1d, 0x8e, 0x23, 0x4e, 0x65, 0x2d, 0x65, 0x1f, 0xa4,
+    0xc8, 0xcf, 0xf8, 0x80, 0x8e
+  ])
+
+  t.alike(c.subarray(0, expected2.length), expected2)
+
+  t.ok(sodium.crypto_box_open_easy(
+    new Uint8Array(0),
+    c.subarray(0, sodium.crypto_box_MACBYTES),
+    nonce,
+    bobpk,
+    alicesk
+  ))
+
+  c[Math.floor(Math.random() * sodium.crypto_box_MACBYTES)] += 1
+
+  t.absent(sodium.crypto_box_open_easy(new Uint8Array(0), c.subarray(0, sodium.crypto_box_MACBYTES), nonce, bobpk, alicesk))
+
+  t.end()
+})
+
+/* eslint-disable camelcase */
+test('crypto_box_easy2', t => {
+  const alicepk = new Uint8Array(sodium.crypto_box_PUBLICKEYBYTES)
+  const alicesk = new Uint8Array(sodium.crypto_box_SECRETKEYBYTES)
+  const bobpk = new Uint8Array(sodium.crypto_box_PUBLICKEYBYTES)
+  const bobsk = new Uint8Array(sodium.crypto_box_SECRETKEYBYTES)
+  const nonce = new Uint8Array(sodium.crypto_box_NONCEBYTES)
+  const m_size = 7 + Math.floor(Math.random() * 1000)
+  const m = new Uint8Array(m_size)
+  const m2 = new Uint8Array(m_size)
+  const c = new Uint8Array(sodium.crypto_box_MACBYTES + m_size)
+
+  sodium.crypto_box_keypair(alicepk, alicesk)
+  sodium.crypto_box_keypair(bobpk, bobsk)
+
+  const mlen = Math.floor(Math.random() * m_size) + 1
+  sodium.randombytes_buf(m.subarray(0, mlen))
+  sodium.randombytes_buf(nonce.subarray(0, sodium.crypto_box_NONCEBYTES))
+
+  t.execution(() => sodium.crypto_box_easy(c.subarray(0, mlen + sodium.crypto_box_MACBYTES), m.subarray(0, mlen), nonce, bobpk, alicesk))
+
+  t.ok(sodium.crypto_box_open_easy(m2.subarray(0, mlen), c.subarray(0, mlen + sodium.crypto_box_MACBYTES), nonce, alicepk, bobsk))
+  t.alike(m.subarray(0, mlen), m2.subarray(0, mlen))
+
+  for (let i = sodium.crypto_box_MACBYTES; i < mlen + sodium.crypto_box_MACBYTES - 1; i++) {
+    if (sodium.crypto_box_open_easy(m2.subarray(0, i - sodium.crypto_box_MACBYTES), c.subarray(0, i), nonce, alicepk, bobsk)) {
+      t.fail('short open() should fail.')
+    }
+  }
+
+  c.set(m.subarray(0, mlen))
+  t.execution(() => sodium.crypto_box_easy(c.subarray(0, mlen + sodium.crypto_box_MACBYTES), c.subarray(0, mlen), nonce, bobpk, alicesk))
+
+  t.unlike(m.subarray(0, mlen), c.subarray(0, mlen))
+  t.unlike(m.subarray(0, mlen), c.subarray(sodium.crypto_box_MACBYTES, sodium.crypto_box_MACBYTES + mlen))
+
+  t.ok(sodium.crypto_box_open_easy(c.subarray(0, mlen), c.subarray(0, mlen + sodium.crypto_box_MACBYTES), nonce, alicepk, bobsk))
+
+  t.end()
+})

test/crypto_generichash.js

@@ -0,0 +1,133 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('crypto_generichash', function (t) {
+  const buf = Buffer.from('Hello, World!')
+
+  const out = Buffer.alloc(sodium.crypto_generichash_BYTES)
+  sodium.crypto_generichash(out, buf)
+
+  t.alike(out.toString('hex'), '511bc81dde11180838c562c82bb35f3223f46061ebde4a955c27b3f489cf1e03', 'hashed buffer')
+
+  const min = Buffer.alloc(sodium.crypto_generichash_BYTES_MIN)
+  sodium.crypto_generichash(min, buf)
+
+  t.alike(min.toString('hex'), '3895c59e4aeb0903396b5be3fbec69fe', 'hashed buffer min')
+
+  const max = Buffer.alloc(sodium.crypto_generichash_BYTES_MAX)
+  sodium.crypto_generichash(max, buf)
+
+  const res = '7dfdb888af71eae0e6a6b751e8e3413d767ef4fa52a7993daa9ef097f7aa3d949199c113caa37c94f80cf3b22f7d9d6e4f5def4ff927830cffe4857c34be3d89'
+  t.alike(max.toString('hex'), res, 'hashed buffer max')
+})
+
+test('crypto_generichash with key', function (t) {
+  const buf = Buffer.from('Hello, World!')
+  const key = Buffer.alloc(sodium.crypto_generichash_KEYBYTES)
+
+  key.fill('lo')
+
+  const out = Buffer.alloc(sodium.crypto_generichash_BYTES)
+  sodium.crypto_generichash(out, buf, key)
+
+  t.alike(out.toString('hex'), 'f4113fe33d43c24c54627d40efa1a78838d4a6d689fd6e83c213848904fffa8c', 'hashed buffer')
+
+  const min = Buffer.alloc(sodium.crypto_generichash_BYTES_MIN)
+  sodium.crypto_generichash(min, buf, key)
+
+  t.alike(min.toString('hex'), 'c8226257b0d1c3dcf4bbc3ef79574689', 'hashed buffer min')
+
+  const max = Buffer.alloc(sodium.crypto_generichash_BYTES_MAX)
+  sodium.crypto_generichash(max, buf, key)
+
+  const res = '763eda46f4c6c61abb4310eb8a488950e9e0667b2fca03c463dc7489e94f065b7af6063fe86b0441c3eb9052800121d55730412abb2cbe0761b1d66f9b047c1c'
+  t.alike(max.toString('hex'), res, 'hashed buffer max')
+})
+
+test.skip('crypto_generichash_state', function (t) {
+  const state = Buffer.alloc(sodium.crypto_generichash_STATEBYTES)
+  sodium.crypto_generichash_init(state, null, sodium.crypto_generichash_BYTES)
+
+  const buf = Buffer.from('Hej, Verden')
+
+  for (let i = 0; i < 10; i++) sodium.crypto_generichash_update(state, buf)
+
+  const out = Buffer.alloc(sodium.crypto_generichash_BYTES)
+  sodium.crypto_generichash_final(state, out)
+
+  t.alike(out.toString('hex'), 'cbc20f347f5dfe37dc13231cbf7eaa4ec48e585ec055a96839b213f62bd8ce00', 'streaming hash')
+})
+
+test.skip('crypto_generichash state with key', function (t) {
+  const key = Buffer.alloc(sodium.crypto_generichash_KEYBYTES)
+  key.fill('lo')
+
+  const state = Buffer.alloc(sodium.crypto_generichash_STATEBYTES)
+  sodium.crypto_generichash_init(state, key, sodium.crypto_generichash_BYTES)
+
+  const buf = Buffer.from('Hej, Verden')
+
+  for (let i = 0; i < 10; i++) sodium.crypto_generichash_update(state, buf)
+
+  const out = Buffer.alloc(sodium.crypto_generichash_BYTES)
+  sodium.crypto_generichash_final(state, out)
+
+  t.alike(out.toString('hex'), '405f14acbeeb30396b8030f78e6a84bab0acf08cb1376aa200a500f669f675dc', 'streaming keyed hash')
+})
+
+test.skip('crypto_generichash state with hash length', function (t) {
+  const state = Buffer.alloc(sodium.crypto_generichash_STATEBYTES)
+  sodium.crypto_generichash_init(state, null, sodium.crypto_generichash_BYTES_MIN)
+
+  const buf = Buffer.from('Hej, Verden')
+
+  for (let i = 0; i < 10; i++) sodium.crypto_generichash_update(state, buf)
+
+  const out = Buffer.alloc(sodium.crypto_generichash_BYTES_MIN)
+  sodium.crypto_generichash_final(state, out)
+
+  t.alike(out.toString('hex'), 'decacdcc3c61948c79d9f8dee5b6aa99', 'streaming short hash')
+})
+
+test.skip('crypto_generichash state with key and hash length', function (t) {
+  const key = Buffer.alloc(sodium.crypto_generichash_KEYBYTES)
+  key.fill('lo')
+
+  const state = Buffer.alloc(sodium.crypto_generichash_STATEBYTES)
+  sodium.crypto_generichash_init(state, key, sodium.crypto_generichash_BYTES_MIN)
+
+  const buf = Buffer.from('Hej, Verden')
+
+  for (let i = 0; i < 10; i++) sodium.crypto_generichash_update(state, buf)
+
+  const out = Buffer.alloc(sodium.crypto_generichash_BYTES_MIN)
+  sodium.crypto_generichash_final(state, out)
+
+  t.alike(out.toString('hex'), 'fb43f0ab6872cbfd39ec4f8a1bc6fb37', 'streaming short keyed hash')
+})
+
+test('crypto_generichash_batch', function (t) {
+  const buf = Buffer.from('Hej, Verden')
+  const batch = []
+  for (let i = 0; i < 10; i++) batch.push(buf)
+
+  const out = Buffer.alloc(sodium.crypto_generichash_BYTES)
+  sodium.crypto_generichash_batch(out, batch)
+
+  t.alike(out.toString('hex'), 'cbc20f347f5dfe37dc13231cbf7eaa4ec48e585ec055a96839b213f62bd8ce00', 'batch hash')
+})
+
+test('crypto_generichash_batch with key', function (t) {
+  const key = Buffer.alloc(sodium.crypto_generichash_KEYBYTES)
+  key.fill('lo')
+
+  const buf = Buffer.from('Hej, Verden')
+  const batch = []
+  for (let i = 0; i < 10; i++) batch.push(buf)
+
+  const out = Buffer.alloc(sodium.crypto_generichash_BYTES)
+  sodium.crypto_generichash_batch(out, batch, key)
+
+  t.alike(out.toString('hex'), '405f14acbeeb30396b8030f78e6a84bab0acf08cb1376aa200a500f669f675dc', 'batch keyed hash')
+})

test/crypto_hash.js

@@ -0,0 +1,17 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('crypto_hash', function (t) {
+  const out = Buffer.alloc(sodium.crypto_hash_BYTES)
+  const inp = Buffer.from('Hej, Verden!')
+
+  t.exception.all(function () {
+    sodium.crypto_hash(Buffer.alloc(0), inp)
+  }, 'throws on bad input')
+
+  sodium.crypto_hash(out, inp)
+
+  const result = 'bcf8e6d11dec2da6e93abb99a73c8e9c387886a5f84fbca5e25af85af26ee39161b7e0c9f9cf547f2aef40523f1aab80e26ec3c630db43ce78adc8c058dc5d16'
+  t.alike(out.toString('hex'), result, 'hashed the string')
+})

test/crypto_hash_sha256.js

@@ -0,0 +1,32 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('crypto_hash_sha256', function (t) {
+  const out = Buffer.alloc(sodium.crypto_hash_sha256_BYTES)
+  const inp = Buffer.from('Hej, Verden!')
+
+  t.exception.all(function () {
+    sodium.crypto_hash(Buffer.alloc(0), inp)
+  }, 'throws on bad input')
+
+  sodium.crypto_hash_sha256(out, inp)
+
+  const result = 'f0704b1e832b05d01223952fb2512181af4f843ce7bb6b443afd5ea028010e6c'
+  t.alike(out.toString('hex'), result, 'hashed the string')
+})
+
+test.skip('crypto_hash_sha256_state', function (t) {
+  const state = Buffer.alloc(sodium.crypto_hash_sha256_STATEBYTES)
+  sodium.crypto_hash_sha256_init(state)
+
+  const buf = Buffer.from('Hej, Verden!')
+
+  for (let i = 0; i < 10; i++) sodium.crypto_hash_sha256_update(state, buf)
+
+  const out = Buffer.alloc(sodium.crypto_hash_sha256_BYTES)
+  sodium.crypto_hash_sha256_final(state, out)
+
+  const result = '14207db33c6ac7d39ca5fe0e74432fa7a2ed15caf7f6ab5ef68d24017a899974'
+  t.alike(out.toString('hex'), result, 'hashed the string')
+})

test/crypto_hash_sha512.js

@@ -0,0 +1,32 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('crypto_hash_sha512', function (t) {
+  const out = Buffer.alloc(sodium.crypto_hash_sha512_BYTES)
+  const inp = Buffer.from('Hej, Verden!')
+
+  t.exception.all(function () {
+    sodium.crypto_hash(Buffer.alloc(0), inp)
+  }, 'throws on bad input')
+
+  sodium.crypto_hash_sha512(out, inp)
+
+  const result = 'bcf8e6d11dec2da6e93abb99a73c8e9c387886a5f84fbca5e25af85af26ee39161b7e0c9f9cf547f2aef40523f1aab80e26ec3c630db43ce78adc8c058dc5d16'
+  t.alike(out.toString('hex'), result, 'hashed the string')
+})
+
+test.skip('crypto_hash_sha512_state', function (t) {
+  const state = Buffer.alloc(sodium.crypto_hash_sha512_STATEBYTES)
+  sodium.crypto_hash_sha512_init(state)
+
+  const buf = Buffer.from('Hej, Verden!')
+
+  for (let i = 0; i < 10; i++) sodium.crypto_hash_sha512_update(state, buf)
+
+  const out = Buffer.alloc(sodium.crypto_hash_sha512_BYTES)
+  sodium.crypto_hash_sha512_final(state, out)
+
+  const result = 'a0a9b965c23be41fa8c344f483da39bedcf88b7f25cdc0bc9ea335fa264dc3db51f08c1d0f5f6f0ffb08a1d8643e2a1cd0ea8f03408ca03711c751d61787a229'
+  t.alike(out.toString('hex'), result, 'hashed the string')
+})

test/crypto_kdf.js

@@ -0,0 +1,71 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('crypto_kdf_keygen', function (t) {
+  const key = Buffer.alloc(sodium.crypto_kdf_KEYBYTES)
+
+  t.exception.all(function () {
+    sodium.crypto_kdf_keygen(Buffer.alloc(1))
+  })
+
+  sodium.crypto_kdf_keygen(key)
+
+  t.not(key, Buffer.alloc(key.length))
+})
+
+test('crypto_kdf_derive_from_key', function (t) {
+  const key = Buffer.alloc(sodium.crypto_kdf_KEYBYTES)
+
+  sodium.crypto_kdf_keygen(key)
+
+  const subkey = Buffer.alloc(sodium.crypto_kdf_BYTES_MIN)
+
+  sodium.crypto_kdf_derive_from_key(subkey, 0, Buffer.from('context_'), key)
+  t.not(subkey, Buffer.alloc(subkey.length))
+
+  const subkey2 = Buffer.alloc(sodium.crypto_kdf_BYTES_MIN)
+
+  sodium.crypto_kdf_derive_from_key(subkey2, 1, Buffer.from('context_'), key)
+  t.not(subkey, subkey2)
+
+  sodium.crypto_kdf_derive_from_key(subkey2, 0, Buffer.from('context_'), key)
+  t.alike(subkey, subkey2)
+})
+
+test('test vectors', function (assert) {
+  const fixtures = require('./fixtures/crypto_kdf.json')
+
+  for (let i = 0; i < fixtures.length; i++) {
+    const key = Buffer.from(fixtures[i].key, 'hex')
+    const subkeyLen = fixtures[i].subkey_len
+    const id = fixtures[i].id
+    const context = Buffer.from(fixtures[i].context, 'hex')
+
+    const shouldError = fixtures[i].error
+
+    const actual = Buffer.alloc(subkeyLen)
+
+    try {
+      sodium.crypto_kdf_derive_from_key(actual, id, context, key)
+      const expected = Buffer.from(fixtures[i].subkey, 'hex')
+      if (Buffer.compare(actual, expected) !== 0) {
+        assert.fail('Failed on fixture #' + i)
+      }
+    } catch (ex) {
+      if (shouldError === false) assert.fail('Failed on fixture #' + i)
+    }
+  }
+
+  assert.pass('Passed all fixtures')
+  assert.end()
+})
+
+test('constants', function (t) {
+  t.ok(sodium.crypto_kdf_PRIMITIVE)
+  t.ok(sodium.crypto_kdf_BYTES_MAX > 0)
+  t.ok(sodium.crypto_kdf_BYTES_MIN <= sodium.crypto_kdf_BYTES_MAX)
+  t.ok(sodium.crypto_kdf_CONTEXTBYTES > 0)
+  t.ok(sodium.crypto_kdf_KEYBYTES >= 16)
+  t.end()
+})

test/crypto_kx.js

@@ -0,0 +1,265 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('crypto_kx_seed_keypair', function (t) {
+  const pk = Buffer.alloc(sodium.crypto_kx_PUBLICKEYBYTES)
+  const sk = Buffer.alloc(sodium.crypto_kx_SECRETKEYBYTES)
+  const seed = Buffer.alloc(sodium.crypto_kx_SEEDBYTES, 'lo')
+
+  t.exception.all(function () {
+    sodium.crypto_kx_seed_keypair()
+  }, 'should validate input')
+
+  t.exception.all(function () {
+    sodium.crypto_kx_seed_keypair(Buffer.alloc(0), Buffer.alloc(0), Buffer.alloc(0))
+  }, 'should validate input length')
+
+  sodium.crypto_kx_seed_keypair(pk, sk, seed)
+
+  const eSk = '768475983073421d5b1676c4aabb24fdf17c3a5f19e6e9e9cdefbfeb45ceb153'
+  const ePk = '0cd703bbd6b1d46dc431a1fc4f1f7724c64b1d4c471e8c17de4966c9e15bf85e'
+
+  t.alike(pk.toString('hex'), ePk, 'seeded public key')
+  t.alike(sk.toString('hex'), eSk, 'seeded secret key')
+})
+
+test('crypto_kx_keypair', function (t) {
+  const pk = Buffer.alloc(sodium.crypto_kx_PUBLICKEYBYTES)
+  const sk = Buffer.alloc(sodium.crypto_kx_SECRETKEYBYTES)
+
+  sodium.crypto_kx_keypair(pk, sk)
+
+  t.not(pk, Buffer.alloc(pk.length), 'made public key')
+  t.not(sk, Buffer.alloc(sk.length), 'made secret key')
+
+  t.exception.all(function () {
+    sodium.crypto_kx_keypair()
+  }, 'should validate input')
+
+  t.exception.all(function () {
+    sodium.crypto_kx_keypair(Buffer.alloc(0), Buffer.alloc(0))
+  }, 'should validate input length')
+})
+
+test.skip('crypto_kx_client_session_keys', function (t) {
+  const clientPk = Buffer.alloc(sodium.crypto_kx_PUBLICKEYBYTES)
+  const clientSk = Buffer.alloc(sodium.crypto_kx_SECRETKEYBYTES)
+  const serverPk = Buffer.alloc(sodium.crypto_kx_PUBLICKEYBYTES)
+  const serverSk = Buffer.alloc(sodium.crypto_kx_SECRETKEYBYTES)
+
+  const serverRx = Buffer.alloc(sodium.crypto_kx_SESSIONKEYBYTES)
+  const serverTx = Buffer.alloc(sodium.crypto_kx_SESSIONKEYBYTES)
+
+  const clientRx = Buffer.alloc(sodium.crypto_kx_SESSIONKEYBYTES)
+  const clientTx = Buffer.alloc(sodium.crypto_kx_SESSIONKEYBYTES)
+
+  sodium.crypto_kx_keypair(serverPk, serverSk)
+  sodium.crypto_kx_keypair(clientPk, clientSk)
+
+  t.exception.all(function () {
+    sodium.crypto_kx_client_session_keys()
+  }, 'should validate')
+
+  t.exception.all(function () {
+    sodium.crypto_kx_server_session_keys()
+  }, 'should validate')
+
+  sodium.crypto_kx_client_session_keys(clientRx, clientTx, clientPk, clientSk, serverPk)
+  sodium.crypto_kx_server_session_keys(serverRx, serverTx, serverPk, serverSk, clientPk)
+
+  t.alike(clientRx, serverTx)
+  t.alike(clientTx, serverRx)
+})
+
+test.skip('crypto_kx_client_session_keys one NULL', function (t) {
+  const clientPk = Buffer.alloc(sodium.crypto_kx_PUBLICKEYBYTES)
+  const clientSk = Buffer.alloc(sodium.crypto_kx_SECRETKEYBYTES)
+  const serverPk = Buffer.alloc(sodium.crypto_kx_PUBLICKEYBYTES)
+  const serverSk = Buffer.alloc(sodium.crypto_kx_SECRETKEYBYTES)
+
+  const serverRx = Buffer.alloc(sodium.crypto_kx_SESSIONKEYBYTES)
+  const serverTx = Buffer.alloc(sodium.crypto_kx_SESSIONKEYBYTES)
+
+  const clientRx = Buffer.alloc(sodium.crypto_kx_SESSIONKEYBYTES)
+  const clientTx = Buffer.alloc(sodium.crypto_kx_SESSIONKEYBYTES)
+
+  sodium.crypto_kx_keypair(serverPk, serverSk)
+  sodium.crypto_kx_keypair(clientPk, clientSk)
+
+  t.exception.all(function () {
+    sodium.crypto_kx_client_session_keys()
+  }, 'should validate')
+
+  t.exception.all(function () {
+    sodium.crypto_kx_server_session_keys()
+  }, 'should validate')
+
+  t.exception(function () {
+    sodium.crypto_kx_server_session_keys(null, null, clientPk, clientSk, serverPk)
+  }, 'should validate')
+
+  t.exception(function () {
+    sodium.crypto_kx_client_session_keys(null, null, clientPk, clientSk, serverPk)
+  }, 'should validate')
+
+  sodium.crypto_kx_client_session_keys(clientRx, null, clientPk, clientSk, serverPk)
+  sodium.crypto_kx_server_session_keys(null, serverTx, serverPk, serverSk, clientPk)
+
+  t.alike(clientRx, serverTx)
+
+  sodium.crypto_kx_client_session_keys(null, clientTx, clientPk, clientSk, serverPk)
+  sodium.crypto_kx_server_session_keys(serverRx, null, serverPk, serverSk, clientPk)
+  t.alike(clientTx, serverRx)
+})
+
+test('crypto_kx constants', function (t) {
+  t.alike(typeof sodium.crypto_kx_SESSIONKEYBYTES, 'number')
+  t.alike(typeof sodium.crypto_kx_PUBLICKEYBYTES, 'number')
+  t.alike(typeof sodium.crypto_kx_SECRETKEYBYTES, 'number')
+  t.alike(typeof sodium.crypto_kx_SEEDBYTES, 'number')
+  t.alike(typeof sodium.crypto_kx_PRIMITIVE, 'string')
+
+  t.is(sodium.crypto_kx_SEEDBYTES, 32)
+  t.is(sodium.crypto_kx_PUBLICKEYBYTES, 32)
+  t.is(sodium.crypto_kx_SESSIONKEYBYTES, 32)
+  t.is(sodium.crypto_kx_SECRETKEYBYTES, 32)
+
+  t.end()
+})
+
+/* eslint-disable camelcase */
+test.skip('libsodium', function (t) {
+  const small_order_p = new Uint8Array([
+    0xe0, 0xeb, 0x7a, 0x7c, 0x3b, 0x41, 0xb8, 0xae, 0x16, 0x56, 0xe3,
+    0xfa, 0xf1, 0x9f, 0xc4, 0x6a, 0xda, 0x09, 0x8d, 0xeb, 0x9c, 0x32,
+    0xb1, 0xfd, 0x86, 0x62, 0x05, 0x16, 0x5f, 0x49, 0xb8, 0x00
+  ])
+
+  const seed = new Uint8Array(sodium.crypto_kx_SEEDBYTES)
+  const client_pk = new Uint8Array(sodium.crypto_kx_PUBLICKEYBYTES)
+  const client_sk = new Uint8Array(sodium.crypto_kx_SECRETKEYBYTES)
+  const client_rx = new Uint8Array(sodium.crypto_kx_SESSIONKEYBYTES)
+  const client_tx = new Uint8Array(sodium.crypto_kx_SESSIONKEYBYTES)
+  const server_pk = new Uint8Array(sodium.crypto_kx_PUBLICKEYBYTES)
+  const server_sk = new Uint8Array(sodium.crypto_kx_SECRETKEYBYTES)
+  const server_rx = new Uint8Array(sodium.crypto_kx_SESSIONKEYBYTES)
+  const server_tx = new Uint8Array(sodium.crypto_kx_SESSIONKEYBYTES)
+
+  for (let i = 0; i < sodium.crypto_kx_SEEDBYTES; i++) {
+    seed[i] = i
+  }
+
+  sodium.crypto_kx_seed_keypair(client_pk, client_sk, seed)
+
+  const exp1 = new Uint8Array([
+    0x0e, 0x02, 0x16, 0x22, 0x3f, 0x14, 0x71, 0x43, 0xd3, 0x26, 0x15,
+    0xa9, 0x11, 0x89, 0xc2, 0x88, 0xc1, 0x72, 0x8c, 0xba, 0x3c, 0xc5,
+    0xf9, 0xf6, 0x21, 0xb1, 0x02, 0x6e, 0x03, 0xd8, 0x31, 0x29
+  ])
+
+  const exp2 = new Uint8Array([
+    0xcb, 0x2f, 0x51, 0x60, 0xfc, 0x1f, 0x7e, 0x05, 0xa5, 0x5e, 0xf4,
+    0x9d, 0x34, 0x0b, 0x48, 0xda, 0x2e, 0x5a, 0x78, 0x09, 0x9d, 0x53,
+    0x39, 0x33, 0x51, 0xcd, 0x57, 0x9d, 0xd4, 0x25, 0x03, 0xd6
+  ])
+
+  t.alike(client_pk, exp1, 'client_pk')
+  t.alike(client_sk, exp2, 'client_pk')
+
+  sodium.crypto_kx_keypair(server_pk, server_sk)
+
+  t.exception(() => {
+    sodium.crypto_kx_client_session_keys(client_rx, client_tx, client_pk, client_sk, small_order_p)
+  })
+
+  t.execution(() => {
+    sodium.crypto_kx_client_session_keys(client_rx, client_tx, client_pk, client_sk, server_pk)
+  })
+
+  t.exception(() => sodium.crypto_kx_server_session_keys(server_rx, server_tx, server_pk, server_sk, small_order_p))
+  t.execution(() => {
+    sodium.crypto_kx_server_session_keys(server_rx, server_tx, server_pk, server_sk, client_pk)
+  })
+
+  t.alike(server_rx, client_tx)
+  t.alike(server_tx, client_rx)
+
+  sodium.sodium_increment(client_pk)
+
+  t.execution(() => {
+    sodium.crypto_kx_server_session_keys(server_rx, server_tx, server_pk, server_sk, client_pk)
+  })
+
+  t.unlike(server_rx, client_tx)
+  t.unlike(server_tx, client_rx)
+
+  sodium.crypto_kx_keypair(client_pk, client_sk)
+
+  t.execution(() => {
+    sodium.crypto_kx_server_session_keys(server_rx, server_tx, server_pk, server_sk, client_pk)
+  })
+
+  t.unlike(server_rx, client_tx)
+  t.unlike(server_tx, client_rx)
+
+  sodium.crypto_kx_seed_keypair(client_pk, client_sk, seed)
+  sodium.sodium_increment(seed)
+
+  sodium.crypto_kx_seed_keypair(server_pk, server_sk, seed)
+  t.execution(() => {
+    sodium.crypto_kx_server_session_keys(server_rx, server_tx, server_pk, server_sk, client_pk)
+  })
+
+  const exp3 = new Uint8Array([
+    0x62, 0xc8, 0xf4, 0xfa, 0x81, 0x80, 0x0a, 0xbd, 0x05, 0x77, 0xd9,
+    0x99, 0x18, 0xd1, 0x29, 0xb6, 0x5d, 0xeb, 0x78, 0x9a, 0xf8, 0xc8,
+    0x35, 0x1f, 0x39, 0x1f, 0xeb, 0x0c, 0xbf, 0x23, 0x86, 0x04
+  ])
+
+  const exp4 = new Uint8Array([
+    0x74, 0x95, 0x19, 0xc6, 0x80, 0x59, 0xbc, 0xe6, 0x9f, 0x7c, 0xfc,
+    0xc7, 0xb3, 0x87, 0xa3, 0xde, 0x1a, 0x1e, 0x82, 0x37, 0xd1, 0x10,
+    0x99, 0x13, 0x23, 0xbf, 0x62, 0x87, 0x01, 0x15, 0x73, 0x1a
+  ])
+
+  t.alike(server_rx, exp3)
+  t.alike(server_tx, exp4)
+
+  t.execution(() => {
+    sodium.crypto_kx_client_session_keys(client_rx, client_tx, client_pk, client_sk, server_pk)
+  })
+
+  const exp5 = new Uint8Array([
+    0x74, 0x95, 0x19, 0xc6, 0x80, 0x59, 0xbc, 0xe6, 0x9f, 0x7c, 0xfc,
+    0xc7, 0xb3, 0x87, 0xa3, 0xde, 0x1a, 0x1e, 0x82, 0x37, 0xd1, 0x10,
+    0x99, 0x13, 0x23, 0xbf, 0x62, 0x87, 0x01, 0x15, 0x73, 0x1a
+  ])
+
+  const exp6 = new Uint8Array([
+    0x62, 0xc8, 0xf4, 0xfa, 0x81, 0x80, 0x0a, 0xbd, 0x05, 0x77, 0xd9,
+    0x99, 0x18, 0xd1, 0x29, 0xb6, 0x5d, 0xeb, 0x78, 0x9a, 0xf8, 0xc8,
+    0x35, 0x1f, 0x39, 0x1f, 0xeb, 0x0c, 0xbf, 0x23, 0x86, 0x04
+  ])
+
+  t.alike(client_rx, exp5)
+  t.alike(client_tx, exp6)
+
+  sodium.randombytes_buf(client_rx)
+  sodium.randombytes_buf(client_tx)
+  sodium.randombytes_buf(server_rx)
+  sodium.randombytes_buf(server_tx)
+
+  t.execution(() => sodium.crypto_kx_client_session_keys(client_rx, null,
+    client_pk, client_sk, server_pk))
+  t.execution(() => sodium.crypto_kx_client_session_keys(null, client_tx,
+    client_pk, client_sk, server_pk))
+  t.execution(() => sodium.crypto_kx_server_session_keys(server_rx, null,
+    server_pk, server_sk, client_pk))
+  t.execution(() => sodium.crypto_kx_server_session_keys(null, server_tx,
+    server_pk, server_sk, client_pk))
+
+  t.alike(client_rx, client_tx)
+  t.alike(client_tx, server_rx)
+  t.alike(server_rx, server_tx)
+})

test/crypto_onetimeauth.js

@@ -0,0 +1,37 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('crypto_onetimeauth', function (t) {
+  const key = Buffer.alloc(sodium.crypto_onetimeauth_KEYBYTES)
+  const mac = Buffer.alloc(sodium.crypto_onetimeauth_BYTES)
+  const value = Buffer.from('Hello, World!')
+
+  sodium.randombytes_buf(key)
+  sodium.crypto_onetimeauth(mac, value, key)
+
+  t.not(mac, Buffer.alloc(mac.length), 'not blank')
+  t.absent(sodium.crypto_onetimeauth_verify(Buffer.alloc(mac.length), value, key), 'does not verify')
+  t.ok(sodium.crypto_onetimeauth_verify(mac, value, key), 'verifies')
+})
+
+test.skip('crypto_onetimeauth_state', function (t) {
+  const key = Buffer.alloc(sodium.crypto_onetimeauth_KEYBYTES, 'lo')
+  const state = Buffer.alloc(sodium.crypto_onetimeauth_STATEBYTES)
+
+  t.exception.all(function () {
+    sodium.crypto_onetimeauth_init(state)
+  }, 'key required')
+
+  key[0] = 42
+
+  sodium.crypto_onetimeauth_init(state, key)
+  const value = Buffer.from('Hello, World!')
+
+  for (let i = 0; i < 10; i++) sodium.crypto_onetimeauth_update(state, value)
+
+  const mac = Buffer.alloc(sodium.crypto_onetimeauth_BYTES)
+  sodium.crypto_onetimeauth_final(state, mac)
+
+  t.alike(mac.toString('hex'), 'ac35df70e6b95051e015de11a6cbf4ab', 'streaming mac')
+})

test/crypto_scalarmult.js

@@ -0,0 +1,39 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('crypto_scalarmult_base', function (t) {
+  const keys = keyPair()
+
+  t.not(keys.secretKey, Buffer.alloc(keys.secretKey.length), 'secret key not blank')
+  t.not(keys.publicKey, Buffer.alloc(keys.publicKey.length), 'public key not blank')
+})
+
+test('crypto_scalarmult', function (t) {
+  const peer1 = keyPair()
+  const peer2 = keyPair()
+
+  t.not(peer1.secretKey, peer2.secretKey, 'diff secret keys')
+  t.not(peer1.publicKey, peer2.publicKey, 'diff public keys')
+
+  const shared1 = Buffer.alloc(sodium.crypto_scalarmult_BYTES)
+  const shared2 = Buffer.alloc(sodium.crypto_scalarmult_BYTES)
+
+  sodium.crypto_scalarmult(shared1, peer1.secretKey, peer2.publicKey)
+  sodium.crypto_scalarmult(shared2, peer2.secretKey, peer1.publicKey)
+
+  t.alike(shared1, shared2, 'same shared secret')
+})
+
+function keyPair () {
+  const secretKey = Buffer.alloc(sodium.crypto_scalarmult_SCALARBYTES)
+  sodium.randombytes_buf(secretKey)
+
+  const publicKey = Buffer.alloc(sodium.crypto_scalarmult_BYTES)
+  sodium.crypto_scalarmult_base(publicKey, secretKey)
+
+  return {
+    publicKey,
+    secretKey
+  }
+}

test/crypto_secretbox.js

@@ -0,0 +1,72 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('crypto_secretbox_easy', function (t) {
+  const message = Buffer.from('Hej, Verden!')
+  const output = Buffer.alloc(message.length + sodium.crypto_secretbox_MACBYTES)
+
+  const key = Buffer.alloc(sodium.crypto_secretbox_KEYBYTES)
+  sodium.randombytes_buf(key)
+
+  const nonce = Buffer.alloc(sodium.crypto_secretbox_NONCEBYTES)
+  sodium.randombytes_buf(nonce)
+
+  t.exception.all(function () {
+    sodium.crypto_secretbox_easy(Buffer.alloc(0), message, nonce, key)
+  }, 'throws if output is too small')
+
+  t.exception.all(function () {
+    sodium.crypto_secretbox_easy(Buffer.alloc(message.length), message, nonce, key)
+  }, 'throws if output is too small')
+
+  sodium.crypto_secretbox_easy(output, message, nonce, key)
+  t.not(output, Buffer.alloc(output.length))
+
+  const result = Buffer.alloc(output.length - sodium.crypto_secretbox_MACBYTES)
+  t.absent(sodium.crypto_secretbox_open_easy(result, output, Buffer.alloc(sodium.crypto_secretbox_NONCEBYTES), key), 'could not decrypt')
+  t.ok(sodium.crypto_secretbox_open_easy(result, output, nonce, key), 'could decrypt')
+
+  t.alike(result, message, 'decrypted message is correct')
+})
+
+test('crypto_secretbox_easy overwrite buffer', function (t) {
+  const output = Buffer.alloc(Buffer.byteLength('Hej, Verden!') + sodium.crypto_secretbox_MACBYTES)
+  output.write('Hej, Verden!', sodium.crypto_secretbox_MACBYTES)
+
+  const key = Buffer.alloc(sodium.crypto_secretbox_KEYBYTES)
+  sodium.randombytes_buf(key)
+
+  const nonce = Buffer.alloc(sodium.crypto_secretbox_NONCEBYTES)
+  sodium.randombytes_buf(nonce)
+
+  sodium.crypto_secretbox_easy(output, output.slice(sodium.crypto_secretbox_MACBYTES), nonce, key)
+  t.not(output, Buffer.alloc(output.length))
+
+  t.ok(sodium.crypto_secretbox_open_easy(output.slice(sodium.crypto_secretbox_MACBYTES), output, nonce, key), 'could decrypt')
+  t.alike(output.slice(sodium.crypto_secretbox_MACBYTES), Buffer.from('Hej, Verden!'), 'decrypted message is correct')
+})
+
+test('crypto_secretbox_detached', function (t) {
+  const message = Buffer.from('Hej, Verden!')
+  const output = Buffer.alloc(message.length)
+  const mac = Buffer.alloc(sodium.crypto_secretbox_MACBYTES)
+
+  const key = Buffer.alloc(sodium.crypto_secretbox_KEYBYTES)
+  sodium.randombytes_buf(key)
+
+  const nonce = Buffer.alloc(sodium.crypto_secretbox_NONCEBYTES)
+  sodium.randombytes_buf(nonce)
+
+  sodium.crypto_secretbox_detached(output, mac, message, nonce, key)
+
+  t.not(mac, Buffer.alloc(mac.length), 'mac not blank')
+  t.not(output, Buffer.alloc(output.length), 'output not blank')
+
+  const result = Buffer.alloc(output.length)
+
+  t.absent(sodium.crypto_secretbox_open_detached(result, output, mac, nonce, Buffer.alloc(key.length)), 'could not decrypt')
+  t.ok(sodium.crypto_secretbox_open_detached(result, output, mac, nonce, key), 'could decrypt')
+
+  t.alike(result, message, 'decrypted message is correct')
+})

test/crypto_secretstream.js

@@ -0,0 +1,148 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('constants', function (t) {
+  t.alike(typeof sodium.crypto_secretstream_xchacha20poly1305_ABYTES, 'number', 'crypto_secretstream_xchacha20poly1305_ABYTES is number')
+  t.alike(typeof sodium.crypto_secretstream_xchacha20poly1305_HEADERBYTES, 'number', 'crypto_secretstream_xchacha20poly1305_HEADERBYTES is number')
+  t.alike(typeof sodium.crypto_secretstream_xchacha20poly1305_KEYBYTES, 'number', 'crypto_secretstream_xchacha20poly1305_KEYBYTES is number')
+  t.alike(typeof sodium.crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX, 'bigint', 'crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX is number')
+
+  t.ok(typeof sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE === 'number', 'crypto_secretstream_xchacha20poly1305_TAG_MESSAGE is Buffer')
+  t.ok(typeof sodium.crypto_secretstream_xchacha20poly1305_TAG_PUSH === 'number', 'crypto_secretstream_xchacha20poly1305_TAG_PUSH is Buffer')
+  t.ok(typeof sodium.crypto_secretstream_xchacha20poly1305_TAG_REKEY === 'number', 'crypto_secretstream_xchacha20poly1305_TAG_REKEY is Buffer')
+  t.ok(typeof sodium.crypto_secretstream_xchacha20poly1305_TAG_FINAL === 'number', 'crypto_secretstream_xchacha20poly1305_TAG_FINAL is Buffer')
+})
+
+test.skip('crypto_secretstream', function (t) {
+  const state = Buffer.alloc(sodium.crypto_secretstream_xchacha20poly1305_STATEBYTES)
+
+  const header = Buffer.alloc(sodium.crypto_secretstream_xchacha20poly1305_HEADERBYTES)
+  const ad = Buffer.alloc(Math.floor(Math.random() * 100))
+  sodium.randombytes_buf(ad)
+
+  const m1 = Buffer.alloc(Math.floor(Math.random() * 1000))
+  sodium.randombytes_buf(m1)
+
+  const m2 = Buffer.alloc(Math.floor(Math.random() * 1000))
+  sodium.randombytes_buf(m2)
+
+  const m3 = Buffer.alloc(Math.floor(Math.random() * 1000))
+  sodium.randombytes_buf(m3)
+
+  const m4 = Buffer.alloc(Math.floor(Math.random() * 1000))
+  sodium.randombytes_buf(m4)
+
+  const m1_ = Buffer.from(m1)
+  const m2_ = Buffer.from(m2)
+  const m3_ = Buffer.from(m3)
+  const m4_ = Buffer.from(m4)
+
+  const c1 = Buffer.alloc(m1.length + sodium.crypto_secretstream_xchacha20poly1305_ABYTES)
+  const c2 = Buffer.alloc(m2.length + sodium.crypto_secretstream_xchacha20poly1305_ABYTES)
+  const c3 = Buffer.alloc(m3.length + sodium.crypto_secretstream_xchacha20poly1305_ABYTES)
+  const c4 = Buffer.alloc(m4.length + sodium.crypto_secretstream_xchacha20poly1305_ABYTES)
+
+  const key = Buffer.alloc(sodium.crypto_secretstream_xchacha20poly1305_KEYBYTES)
+  let ret
+  const tag = Buffer.alloc(sodium.crypto_secretstream_xchacha20poly1305_TAGBYTES, 0xdb)
+
+  sodium.crypto_secretstream_xchacha20poly1305_keygen(key)
+
+  sodium.crypto_secretstream_xchacha20poly1305_init_push(state, header, key)
+  t.unlike(header.toString('hex'), '000000000000000000000000000000000000000000000000')
+  ret = sodium.crypto_secretstream_xchacha20poly1305_push(state, c1, m1, null, sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE)
+  t.alike(ret, m1.length + sodium.crypto_secretstream_xchacha20poly1305_ABYTES)
+  ret = sodium.crypto_secretstream_xchacha20poly1305_push(state, c2, m2, ad.slice(0, 0), sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE)
+  t.alike(ret, m2.length + sodium.crypto_secretstream_xchacha20poly1305_ABYTES)
+  ret = sodium.crypto_secretstream_xchacha20poly1305_push(state, c3, m3, ad, sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE)
+  t.alike(ret, m3.length + sodium.crypto_secretstream_xchacha20poly1305_ABYTES)
+  ret = sodium.crypto_secretstream_xchacha20poly1305_push(state, c4, m4, null, sodium.crypto_secretstream_xchacha20poly1305_TAG_FINAL)
+  t.alike(ret, m4.length + sodium.crypto_secretstream_xchacha20poly1305_ABYTES)
+
+  sodium.crypto_secretstream_xchacha20poly1305_init_pull(state, header, key)
+  m1.fill(0)
+  tag.fill(0xdb)
+  ret = sodium.crypto_secretstream_xchacha20poly1305_pull(state, m1, tag, c1, null)
+  t.alike(ret, c1.length - sodium.crypto_secretstream_xchacha20poly1305_ABYTES)
+  t.alike(tag[0], sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE)
+  t.ok(m1.equals(m1_))
+
+  m2.fill(0)
+  tag.fill(0xdb)
+  ret = sodium.crypto_secretstream_xchacha20poly1305_pull(state, m2, tag, c2, null)
+  t.alike(ret, c2.length - sodium.crypto_secretstream_xchacha20poly1305_ABYTES)
+  t.alike(tag[0], sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE)
+  t.ok(m2.equals(m2_))
+
+  if (ad.length > 0) {
+    t.exception.all(function () {
+      sodium.crypto_secretstream_xchacha20poly1305_pull(state, m3, tag, c3, null)
+    })
+  }
+
+  m3.fill(0)
+  tag.fill(0xdb)
+  ret = sodium.crypto_secretstream_xchacha20poly1305_pull(state, m3, tag, c3, ad)
+  t.alike(ret, c3.length - sodium.crypto_secretstream_xchacha20poly1305_ABYTES)
+  t.alike(tag[0], sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE)
+  t.ok(m3.equals(m3_))
+
+  m4.fill(0)
+  tag.fill(0xdb)
+  ret = sodium.crypto_secretstream_xchacha20poly1305_pull(state, m4, tag, c4, null)
+  t.alike(ret, c4.length - sodium.crypto_secretstream_xchacha20poly1305_ABYTES)
+  t.alike(tag[0], sodium.crypto_secretstream_xchacha20poly1305_TAG_FINAL)
+  t.ok(m4.equals(m4_))
+
+  t.exception.all(function () {
+    sodium.crypto_secretstream_xchacha20poly1305_pull(state, m4, tag, c4, null)
+  }, 'previous with FINAL tag')
+
+  t.exception.all(function () {
+    sodium.crypto_secretstream_xchacha20poly1305_pull(state, m2, tag, c2, null)
+  }, 'previous with without tag')
+
+  t.exception.all(function () {
+    sodium.crypto_secretstream_xchacha20poly1305_pull(state, m2, tag, c2.slice(0, Math.random() * sodium.crypto_secretstream_xchacha20poly1305_ABYTES | 0), null) // fixme
+  }, 'short ciphertext')
+
+  t.exception.all(function () {
+    sodium.crypto_secretstream_xchacha20poly1305_pull(state, m2, tag, c2.slice(0, sodium.crypto_secretstream_xchacha20poly1305_ABYTES), null)
+  }, 'empty ciphertext')
+
+  /* without explicit rekeying */
+
+  sodium.crypto_secretstream_xchacha20poly1305_init_push(state, header, key)
+  sodium.crypto_secretstream_xchacha20poly1305_push(state, c1, m1, null, sodium.crypto_secretstream_xchacha20poly1305_TAG_REKEY)
+  sodium.crypto_secretstream_xchacha20poly1305_push(state, c2, m2, null, sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE)
+
+  sodium.crypto_secretstream_xchacha20poly1305_init_pull(state, header, key)
+  tag.fill(0xdb)
+  sodium.crypto_secretstream_xchacha20poly1305_pull(state, m1, tag, c1, null)
+  t.alike(tag[0], sodium.crypto_secretstream_xchacha20poly1305_TAG_REKEY)
+  tag.fill(0xdb)
+  sodium.crypto_secretstream_xchacha20poly1305_pull(state, m2, tag, c2, null)
+  t.alike(tag[0], sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE)
+
+  /* with explicit rekeying */
+
+  sodium.crypto_secretstream_xchacha20poly1305_init_push(state, header, key)
+  sodium.crypto_secretstream_xchacha20poly1305_push(state, c1, m1, null, sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE)
+  sodium.crypto_secretstream_xchacha20poly1305_rekey(state)
+  sodium.crypto_secretstream_xchacha20poly1305_push(state, c2, m2, null, sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE)
+
+  sodium.crypto_secretstream_xchacha20poly1305_init_pull(state, header, key)
+  tag.fill(0xdb)
+  sodium.crypto_secretstream_xchacha20poly1305_pull(state, m1, tag, c1, null)
+  t.alike(tag[0], sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE)
+
+  t.exception.all(function () {
+    sodium.crypto_secretstream_xchacha20poly1305_pull(state, m2, tag, c2, null)
+  })
+
+  sodium.crypto_secretstream_xchacha20poly1305_rekey(state)
+  tag.fill(0xdb)
+  sodium.crypto_secretstream_xchacha20poly1305_pull(state, m2, tag, c2, null)
+  t.alike(tag[0], sodium.crypto_secretstream_xchacha20poly1305_TAG_MESSAGE)
+})

test/crypto_shorthash.js

@@ -0,0 +1,214 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+const vectors = [ // generated from https://github.com/jedisct1/siphash-js/blob/master/test/index.js
+  ['aON1dHrq90SbG8Hx', 'v7LyiwuCrB7EgAibPve6Yg2gLmggxE6j7ocR37EudrH_P9XX2rQK', [147, 73, 50, 63, 71, 98, 203, 42]],
+  ['YOT4AG5F7ONRW5na', '4Ks1pPO_2wGYR-gfJShqUO-FirA9c5cF4oKwvStp2Ix5hHUg2klPofVJ8TZoBdFfgTh8', [138, 27, 129, 27, 185, 163, 160, 153]],
+  ['63UlqXfSckA3Dv8S', 'bMQudI8yVdDx5ScGQCMQy4K_QXYCq1w1eC', [6, 78, 44, 167, 186, 29, 113, 244]],
+  ['P3hpmZEuwfDO_uZ-', 'Wh8yRitk__n4MsETCTRFrB4bjWRtPjUZVLPnywlvv5nTMA2C71', [241, 171, 151, 44, 166, 163, 156, 234]],
+  ['d9oTrpd-a_Na4b6w', 'f-NT', [182, 147, 203, 88, 65, 57, 119, 203]],
+  ['fe88HBnyyEiuIJ8G', 'KSWP9sFkhSdGsha0Fmd5raCf_eA5gnV1', [218, 10, 3, 10, 16, 50, 241, 229]],
+  ['o6LxtnACG0RGQ3z-', 'k8zMl', [16, 158, 19, 145, 214, 142, 177, 55]],
+  ['AHGkoQQ6xdf90MD9', 'HC9bz8XUYkan0jxYSaj0vP-cs324Y4PrnAXutwKBgIko5oOOOViJSjLD2m8WenV8HdF78J', [157, 186, 255, 238, 165, 21, 187, 163]],
+  ['TlVmpfbZMFkeuENo', '5is', [166, 36, 114, 58, 101, 106, 79, 30]],
+  ['iBLscVfsPM1xrSFJ', 'J-aH-', [14, 91, 64, 158, 190, 247, 72, 26]],
+  ['hUehErdKolgd0erH', 'DhS94w_07-vaAXo_msv8Fk57slIHnuxy3iv4Yymh5k', [45, 207, 192, 24, 158, 243, 93, 68]],
+  ['B-aq-09jmO0z_PUD', '1p2IMG4A1NMyWsfUS02VK8fOEhn', [161, 224, 65, 80, 91, 44, 131, 177]],
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+  ['g3EswbaCSNMsegzm', 'rTFnEuEDlwBB0Dw_q3-FUSaTCEjWe0pOPZDIWD35Us08Qa-nulc57YjDoGphUfBamq', [157, 64, 119, 179, 60, 147, 48, 17]],
+  ['iYsckWoQTk5ap8YO', 'wIyTqa43-_GiZlHJ8UXcD_tnqKikH5DZUWxdQ1xjYMyzCr2JvKKRBm8BbcDl_Q8p', [96, 237, 170, 183, 48, 45, 116, 106]],
+  ['Iyk5MoAjoWq4n8bG', 'IV2N5MC6kvk95ykEzb3jj0A7Sv0jjif45SR1avc0bRWot2aW', [99, 23, 149, 225, 242, 204, 47, 7]],
+  ['NfzdRXCegRRsHHYj', '5uLBPbyFQqiv', [136, 45, 110, 192, 36, 204, 171, 218]],
+  ['YiJTXegVwaNDtlpl', 'DbwKoF3CI5kd2JRKwfyuLpeGd6sFhqI0t43C2ph', [188, 126, 147, 191, 9, 114, 107, 60]],
+  ['ZuUlFM-yEzZ9XHKj', 'errecd71', [158, 231, 84, 47, 149, 227, 92, 111]],
+  ['EtEXELa6V_NSjvEh', 'yrTjrRuW8mJc3utw2JUH7iIW-J5vF3t9GC1-ZvRmO8UXNsG8-I3Iqgtinzoabqqbs1yvR', [186, 52, 144, 215, 104, 246, 174, 71]],
+  ['q2uA_VwMnaBtAgTx', 'uJOymuDgBBS9Ec56JRGmKYsMHoGLCKA5wzwhtYf-g8-IT7UsAX1JHFGSV0EF', [176, 65, 188, 134, 212, 6, 97, 186]],
+  ['4RmqR10QiIZDDKNO', 'oWY0Aj2CDCWuEFhdNHq2RFcGJD0sSRxK5K', [114, 28, 238, 228, 122, 40, 82, 13]],
+  ['a9DfUPCLyQ_yrNIa', '5G-6AVe7CBJl-NuuUN_7TN', [95, 206, 124, 185, 194, 207, 227, 111]],
+  ['8oB5yG87C2v5j0_4', '1S-aiUNRJ2c', [123, 42, 242, 79, 90, 36, 208, 81]],
+  ['ZA2ZT22NXwD_UvTM', 'UpV3pLYniWPm-PnWUAbBNeO4V-zuuw6IZQ1ZprLsC_LjGdSJP7rZCnoPz', [189, 209, 102, 128, 246, 141, 212, 109]],
+  ['ycz6aiuQFGKxZVsM', 'fBuJp4_A_hiq--4uBhxjXfT3nRaYEJ8azW2_FKooXdSVRv2Y03VoWzPzG', [241, 127, 162, 199, 73, 10, 75, 24]],
+  ['eAmt0pClMyL8Sk69', 'JFzXjfJhEMUCYEDrBKRM9OFFK0PSX', [176, 167, 43, 60, 16, 69, 194, 2]],
+  ['CTFnU2nwy9s1_kBj', 'hEHqR0idFTzbvG193aLYj6y2DFPi2UKQut_A--43PdN1XF', [6, 84, 156, 248, 125, 55, 230, 121]],
+  ['CAhom0f872WEDXP6', 'dmX', [203, 98, 175, 172, 19, 3, 244, 177]],
+  ['aON1dHrq90SbG8Hx', 'v7LyiwuCrB7EgAibPve6Yg2gLmggxE6j7ocR37EudrH_P9XX2rQK', [147, 73, 50, 63, 71, 98, 203, 42]]
+]
+
+test('crypto_shorthash', function (t) {
+  const out = Buffer.alloc(sodium.crypto_shorthash_BYTES)
+  const inp = Buffer.from('Hej, Verden!')
+  const key = Buffer.alloc(sodium.crypto_shorthash_KEYBYTES)
+
+  t.exception.all(function () {
+    sodium.crypto_shorthash(Buffer.alloc(0), inp)
+  }, 'throws on bad input')
+
+  sodium.crypto_shorthash(out, inp, key)
+
+  const result = '6a29984f782e684e'
+  t.alike(out.toString('hex'), result, 'hashed the string')
+})
+
+test('constants', function (assert) {
+  assert.ok(sodium.crypto_shorthash_PRIMITIVE)
+  assert.ok(sodium.crypto_shorthash_KEYBYTES > 0)
+  assert.ok(sodium.crypto_shorthash_BYTES > 0)
+  assert.end()
+})
+
+test('crypto_shorthash fixtures', function (assert) {
+  run(assert)
+})
+
+test('crypto_shorthash fixtures (wasm)', function (assert) {
+  if (!sodium.crypto_shorthash_WASM_SUPPORTED) {
+    assert.pass('wasm not supported')
+    assert.end()
+    return
+  }
+
+  assert.ok(sodium.crypto_shorthash_WASM_LOADED)
+  run(assert)
+})
+
+function run (assert) {
+  for (let i = 0; i < vectors.length; i++) {
+    const v = vectors[i]
+    const key = Buffer.from(v[0])
+    const message = Buffer.from(v[1])
+    const expected = Buffer.from(v[2])
+    const out = Buffer.alloc(sodium.crypto_shorthash_BYTES)
+
+    sodium.crypto_shorthash(out, message, key)
+    if (Buffer.compare(out, expected) !== 0) {
+      assert.fail('Failed on fixture #' + i)
+      assert.end()
+      return
+    }
+  }
+
+  assert.pass('Passed all fixtures')
+  assert.end()
+}

test/crypto_sign.js

@@ -0,0 +1,334 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+const fixtures = require('./fixtures/crypto_sign.json')
+
+test('crypto_sign_ed25519_sk_to_pk', function (t) {
+  const pk = Buffer.alloc(sodium.crypto_sign_PUBLICKEYBYTES)
+  const pke = Buffer.alloc(sodium.crypto_sign_PUBLICKEYBYTES)
+  const sk = Buffer.alloc(sodium.crypto_sign_SECRETKEYBYTES)
+
+  sodium.crypto_sign_keypair(pk, sk)
+  sodium.crypto_sign_ed25519_sk_to_pk(pke, sk)
+
+  t.ok(pk.equals(pke))
+})
+
+test('crypto_sign_seed_keypair', function (t) {
+  const pk = Buffer.alloc(sodium.crypto_sign_PUBLICKEYBYTES)
+  const sk = Buffer.alloc(sodium.crypto_sign_SECRETKEYBYTES)
+  const seed = Buffer.alloc(sodium.crypto_sign_SEEDBYTES, 'lo')
+
+  t.exception.all(function () {
+    sodium.crypto_sign_seed_keypair()
+  }, 'should validate input')
+
+  t.exception.all(function () {
+    sodium.crypto_sign_seed_keypair(Buffer.alloc(0), Buffer.alloc(0), Buffer.alloc(0))
+  }, 'should validate input length')
+
+  sodium.crypto_sign_seed_keypair(pk, sk, seed)
+
+  const eSk = '6c6f6c6f6c6f6c6f6c6f6c6f6c6f6c6f6c6f6c6f6c6f6c6f6c6f6c6f6c6f6c6f41eb5b4dba29b19e391d9a4d1a4a879b27958ff3734e10cfbf1f46d68f4d3038'
+  const ePk = '41eb5b4dba29b19e391d9a4d1a4a879b27958ff3734e10cfbf1f46d68f4d3038'
+
+  t.alike(pk.toString('hex'), ePk, 'seeded public key')
+  t.alike(sk.toString('hex'), eSk, 'seeded secret key')
+})
+
+test('crypto_sign_keypair', function (t) {
+  const pk = Buffer.alloc(sodium.crypto_sign_PUBLICKEYBYTES)
+  const sk = Buffer.alloc(sodium.crypto_sign_SECRETKEYBYTES)
+
+  sodium.crypto_sign_keypair(pk, sk)
+
+  t.not(pk, Buffer.alloc(pk.length), 'made public key')
+  t.not(sk, Buffer.alloc(sk.length), 'made secret key')
+
+  t.exception.all(function () {
+    sodium.crypto_sign_keypair()
+  }, 'should validate input')
+
+  t.exception.all(function () {
+    sodium.crypto_sign_keypair(Buffer.alloc(0), Buffer.alloc(0))
+  }, 'should validate input length')
+})
+
+test('crypto_sign', function (t) {
+  const pk = Buffer.alloc(sodium.crypto_sign_PUBLICKEYBYTES)
+  const sk = Buffer.alloc(sodium.crypto_sign_SECRETKEYBYTES)
+
+  sodium.crypto_sign_keypair(pk, sk)
+
+  const message = Buffer.from('Hello, World!')
+  const signedMessage = Buffer.alloc(message.length + sodium.crypto_sign_BYTES)
+
+  sodium.crypto_sign(signedMessage, message, sk)
+
+  t.alike(signedMessage.slice(-message.length), message, 'contains message')
+
+  const output = Buffer.alloc(message.length)
+
+  t.absent(sodium.crypto_sign_open(output, Buffer.alloc(signedMessage.length), pk), 'was not signed')
+  t.ok(sodium.crypto_sign_open(output, signedMessage, pk), 'was signed')
+
+  t.alike(output, message, 'same message')
+})
+
+test('crypto_sign_detached', function (t) {
+  const pk = Buffer.alloc(sodium.crypto_sign_PUBLICKEYBYTES)
+  const sk = Buffer.alloc(sodium.crypto_sign_SECRETKEYBYTES)
+
+  sodium.crypto_sign_keypair(pk, sk)
+
+  const message = Buffer.from('Hello, World!')
+  const signature = Buffer.alloc(sodium.crypto_sign_BYTES)
+
+  sodium.crypto_sign_detached(signature, message, sk)
+
+  t.absent(sodium.crypto_sign_verify_detached(Buffer.concat([Buffer.alloc(1), signature]), message, pk), 'was not signed')
+  t.ok(sodium.crypto_sign_verify_detached(signature, message, pk), 'was signed')
+})
+
+test('crypto_sign_open fixtures', function (t) {
+  for (let i = 0; i < fixtures.length; i++) {
+    const publicKey = new Uint8Array(fixtures[i][1])
+    const message = new Uint8Array(fixtures[i][3])
+    const signed = new Uint8Array([].concat(fixtures[i][2], fixtures[i][3]))
+
+    if (!sodium.crypto_sign_open(message, signed, publicKey)) {
+      t.fail('Failed on fixture #' + i)
+      t.end()
+      return
+    }
+  }
+
+  t.pass('Passed all fixtures')
+  t.end()
+})
+
+test('crypto_sign fixtures', function (t) {
+  const fixtures = require('./fixtures/crypto_sign.json')
+
+  for (let i = 0; i < fixtures.length; i++) {
+    const secretKey = new Uint8Array([].concat(fixtures[i][0], fixtures[i][1]))
+    const message = new Uint8Array(fixtures[i][3])
+
+    const expected = new Uint8Array([].concat(fixtures[i][2], fixtures[i][3]))
+    const actual = new Uint8Array(sodium.crypto_sign_BYTES + message.length)
+
+    sodium.crypto_sign(actual, message, secretKey)
+
+    if (Buffer.compare(actual, expected) !== 0) {
+      t.fail('Failed on fixture #' + i)
+      t.end()
+      return
+    }
+  }
+
+  t.pass('Passed all fixtures')
+  t.end()
+})
+
+test('crypto_sign_verify_detached fixtures', function (t) {
+  const fixtures = require('./fixtures/crypto_sign.json')
+
+  for (let i = 0; i < fixtures.length; i++) {
+    const publicKey = new Uint8Array(fixtures[i][1])
+    const message = new Uint8Array(fixtures[i][3])
+    const signature = new Uint8Array(fixtures[i][2])
+
+    if (!sodium.crypto_sign_verify_detached(signature, message, publicKey)) {
+      t.fail('Failed on fixture #' + i)
+      t.end()
+      return
+    }
+  }
+
+  t.pass('Passed all fixtures')
+  t.end()
+})
+
+test('crypto_sign_detached fixtures', function (t) {
+  const fixtures = require('./fixtures/crypto_sign.json')
+
+  for (let i = 0; i < fixtures.length; i++) {
+    const secretKey = new Uint8Array([].concat(fixtures[i][0], fixtures[i][1]))
+    const message = new Uint8Array(fixtures[i][3])
+
+    const expected = new Uint8Array(fixtures[i][2])
+    const actual = new Uint8Array(sodium.crypto_sign_BYTES)
+
+    sodium.crypto_sign_detached(actual, message, secretKey)
+
+    if (Buffer.compare(actual, expected) !== 0) {
+      t.fail('Failed on fixture #' + i)
+      t.end()
+      return
+    }
+  }
+
+  t.pass('Passed all fixtures')
+  t.end()
+})
+
+/* eslint-disable camelcase */
+test('libsodium', function (t) {
+  const sig = new Uint8Array(sodium.crypto_sign_BYTES)
+  const sm = new Uint8Array(1024 + sodium.crypto_sign_BYTES)
+  const skpk = new Uint8Array(sodium.crypto_sign_SECRETKEYBYTES)
+  const pk = new Uint8Array(sodium.crypto_sign_PUBLICKEYBYTES)
+  const sk = new Uint8Array(sodium.crypto_sign_SECRETKEYBYTES)
+
+  let smlen
+  let i
+  let test
+
+  sig.fill(0)
+
+  let pass = true
+  for (i = 0; i < fixtures.length; i++) {
+    test = parseTest(fixtures[i])
+
+    skpk.set(test.sk)
+    skpk.set(test.pk, sodium.crypto_sign_SEEDBYTES)
+
+    smlen = sodium.crypto_sign_BYTES + test.m.byteLength
+
+    sodium.crypto_sign(sm.subarray(0, test.m.byteLength + sodium.crypto_sign_BYTES), test.m, skpk)
+    pass &= Buffer.compare(test.sig, sm.subarray(0, 64)) === 0
+    pass &= sodium.crypto_sign_open(test.m, sm.subarray(0, smlen), test.pk)
+
+    sodium.crypto_sign_detached(sig, test.m, skpk)
+
+    pass &= sig.byteLength !== 0 && sig.byteLength <= sodium.crypto_sign_BYTES
+    pass &= Buffer.compare(test.sig, sig) === 0
+    pass &= sodium.crypto_sign_verify_detached(sig, test.m.subarray(0, i), test.pk)
+
+    if (!pass) t.fail('failed on fixture #' + i)
+  }
+  t.pass('passed all fixtures')
+
+  for (let j = 1; j < 8; j++) {
+    sig[63] ^= (j << 5)
+
+    t.absent(sodium.crypto_sign_verify_detached(sig, test.m.subarray(0, i), test.pk))
+
+    sig[63] ^= (j << 5)
+  }
+
+  pk.fill(0)
+  t.absent(sodium.crypto_sign_verify_detached(sig, test.m.subarray(0, i), pk))
+
+  sig.subarray(0, 32).fill(0xff)
+  sig[0] = 0xdb
+
+  t.absent(sodium.crypto_sign_verify_detached(sig, test.m.subarray(0, i), pk))
+  sodium.crypto_sign_detached(sig, test.m.subarray(0, i), skpk)
+
+  hex2bin(pk, '3eee494fb9eac773144e34b0c755affaf33ea782c0722e5ea8b150e61209ab36')
+  t.absent(sodium.crypto_sign_verify_detached(sig, test.m.subarray(0, i), pk))
+
+  hex2bin(pk, '0200000000000000000000000000000000000000000000000000000000000000')
+  t.absent(sodium.crypto_sign_verify_detached(sig, test.m.subarray(0, i), pk))
+
+  hex2bin(pk, '0500000000000000000000000000000000000000000000000000000000000000')
+  t.absent(sodium.crypto_sign_verify_detached(sig, test.m.subarray(0, i), pk))
+
+  const keypair_seed = new Uint8Array([
+    0x42, 0x11, 0x51, 0xa4, 0x59, 0xfa, 0xea, 0xde, 0x3d, 0x24, 0x71,
+    0x15, 0xf9, 0x4a, 0xed, 0xae, 0x42, 0x31, 0x81, 0x24, 0x09, 0x5a,
+    0xfa, 0xbe, 0x4d, 0x14, 0x51, 0xa5, 0x59, 0xfa, 0xed, 0xee
+  ])
+
+  t.execution(() => sodium.crypto_sign_seed_keypair(pk, sk, keypair_seed))
+  t.execution(() => sodium.crypto_sign_keypair(pk, sk))
+
+  t.ok(sodium.crypto_sign_BYTES > 0)
+  t.ok(sodium.crypto_sign_SEEDBYTES > 0)
+  t.ok(sodium.crypto_sign_PUBLICKEYBYTES > 0)
+  t.ok(sodium.crypto_sign_SECRETKEYBYTES > 0)
+  t.is(sodium.crypto_sign_BYTES, 64)
+  t.is(sodium.crypto_sign_SEEDBYTES, 32)
+  t.is(sodium.crypto_sign_PUBLICKEYBYTES, 32)
+  t.is(sodium.crypto_sign_SECRETKEYBYTES, 64)
+
+  t.end()
+})
+
+test('ed25519 convert', function (t) {
+  const keypair_seed = new Uint8Array([
+    0x42, 0x11, 0x51, 0xa4, 0x59, 0xfa, 0xea, 0xde, 0x3d, 0x24, 0x71,
+    0x15, 0xf9, 0x4a, 0xed, 0xae, 0x42, 0x31, 0x81, 0x24, 0x09, 0x5a,
+    0xfa, 0xbe, 0x4d, 0x14, 0x51, 0xa5, 0x59, 0xfa, 0xed, 0xee
+  ])
+
+  const ed25519_pk = new Uint8Array(sodium.crypto_sign_PUBLICKEYBYTES)
+  const ed25519_skpk = new Uint8Array(sodium.crypto_sign_SECRETKEYBYTES)
+  const curve25519_pk = new Uint8Array(sodium.crypto_scalarmult_BYTES)
+  const curve25519_pk2 = new Uint8Array(sodium.crypto_scalarmult_BYTES)
+  const curve25519_sk = new Uint8Array(sodium.crypto_scalarmult_BYTES)
+
+  t.ok(sodium.crypto_sign_SEEDBYTES <= sodium.crypto_hash_sha512_BYTES)
+
+  sodium.crypto_sign_seed_keypair(ed25519_pk, ed25519_skpk, keypair_seed)
+  sodium.crypto_sign_ed25519_pk_to_curve25519(curve25519_pk, ed25519_pk)
+  sodium.crypto_sign_ed25519_sk_to_curve25519(curve25519_sk, ed25519_skpk)
+
+  const expected_pk = new Uint8Array([
+    0xf1, 0x81, 0x4f, 0x0e, 0x8f, 0xf1, 0x04, 0x3d, 0x8a, 0x44, 0xd2, 0x5b,
+    0xab, 0xff, 0x3c, 0xed, 0xca, 0xe6, 0xc2, 0x2c, 0x3e, 0xda, 0xa4, 0x8f,
+    0x85, 0x7a, 0xe7, 0x0d, 0xe2, 0xba, 0xae, 0x50
+  ])
+
+  const expected_sk = new Uint8Array([
+    0x80, 0x52, 0x03, 0x03, 0x76, 0xd4, 0x71, 0x12, 0xbe, 0x7f, 0x73, 0xed,
+    0x7a, 0x01, 0x92, 0x93, 0xdd, 0x12, 0xad, 0x91, 0x0b, 0x65, 0x44, 0x55,
+    0x79, 0x8b, 0x46, 0x67, 0xd7, 0x3d, 0xe1, 0x66
+  ])
+
+  t.alike(curve25519_pk, expected_pk)
+  t.alike(curve25519_sk, expected_sk)
+
+  for (let i = 0; i < 500; i++) {
+    sodium.crypto_sign_keypair(ed25519_pk, ed25519_skpk)
+    sodium.crypto_sign_ed25519_pk_to_curve25519(curve25519_pk, ed25519_pk)
+
+    sodium.crypto_sign_ed25519_sk_to_curve25519(curve25519_sk, ed25519_skpk)
+    sodium.crypto_scalarmult_base(curve25519_pk2, curve25519_sk)
+    if (Buffer.compare(curve25519_pk, curve25519_pk2) !== 0) t.fail()
+  }
+  t.pass('passed all cases')
+
+  ed25519_pk.fill(0)
+  t.exception(() => {
+    sodium.crypto_sign_ed25519_pk_to_curve25519(curve25519_pk, ed25519_pk)
+  })
+
+  t.exception(() => {
+    ed25519_pk[0] = 2
+    sodium.crypto_sign_ed25519_pk_to_curve25519(curve25519_pk, ed25519_pk)
+  })
+
+  t.exception(() => {
+    ed25519_pk[0] = 5
+    sodium.crypto_sign_ed25519_pk_to_curve25519(curve25519_pk, ed25519_pk)
+  })
+
+  t.end()
+})
+
+function parseTest (t) {
+  return {
+    sk: new Uint8Array(t[0]),
+    pk: new Uint8Array(t[1]),
+    sig: new Uint8Array(t[2]),
+    m: new Uint8Array(t[3])
+  }
+}
+
+function hex2bin (buf, hex) {
+  for (let i = 0; i < hex.length / 2; i++) {
+    buf[i] = Number('0x' + hex.slice(2 * i, 2 * i + 1))
+  }
+}

test/crypto_stream.js

@@ -0,0 +1,213 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('crypto_stream', function (t) {
+  const buf = Buffer.alloc(50)
+  const nonce = random(sodium.crypto_stream_NONCEBYTES)
+  const key = random(sodium.crypto_stream_KEYBYTES)
+
+  sodium.crypto_stream(buf, nonce, key)
+
+  t.not(buf, Buffer.alloc(50), 'contains noise now')
+  const copy = Buffer.from(buf.toString('hex'), 'hex')
+
+  sodium.crypto_stream(buf, nonce, key)
+  t.alike(buf, copy, 'predictable from nonce, key')
+})
+
+test('crypto_stream_xor', function (t) {
+  const message = Buffer.from('Hello, World!')
+  const nonce = random(sodium.crypto_stream_NONCEBYTES)
+  const key = random(sodium.crypto_stream_KEYBYTES)
+
+  sodium.crypto_stream_xor(message, message, nonce, key)
+
+  t.not(message, Buffer.from('Hello, World!'), 'encrypted')
+
+  sodium.crypto_stream_xor(message, message, nonce, key)
+
+  t.alike(message, Buffer.from('Hello, World!'), 'decrypted')
+})
+
+test.skip('crypto_stream_xor state', function (t) {
+  const message = Buffer.from('Hello, world!')
+  const nonce = random(sodium.crypto_stream_NONCEBYTES)
+  const key = random(sodium.crypto_stream_KEYBYTES)
+
+  const out = Buffer.alloc(message.length)
+
+  const state = Buffer.alloc(sodium.crypto_stream_xor_STATEBYTES)
+  sodium.crypto_stream_xor_init(state, nonce, key)
+
+  for (let i = 0; i < message.length; i++) {
+    sodium.crypto_stream_xor_update(state, out.slice(i, i + 1), message.slice(i, i + 1))
+  }
+
+  sodium.crypto_stream_xor_final(state)
+  sodium.crypto_stream_xor(out, out, nonce, key)
+  t.alike(out, message, 'decrypted')
+})
+
+test.skip('crypto_stream_xor state with empty buffers', function (t) {
+  const message = Buffer.from('Hello, world!')
+  const nonce = random(sodium.crypto_stream_NONCEBYTES)
+  const key = random(sodium.crypto_stream_KEYBYTES)
+
+  const out = Buffer.alloc(message.length)
+
+  const state = Buffer.alloc(sodium.crypto_stream_xor_STATEBYTES)
+  sodium.crypto_stream_xor_init(state, nonce, key)
+
+  sodium.crypto_stream_xor_update(state, Buffer.alloc(0), Buffer.alloc(0))
+
+  for (let i = 0; i < message.length; i++) {
+    sodium.crypto_stream_xor_update(state, out.slice(i, i + 1), message.slice(i, i + 1))
+    sodium.crypto_stream_xor_update(state, Buffer.alloc(0), Buffer.alloc(0))
+  }
+
+  sodium.crypto_stream_xor_final(state)
+  sodium.crypto_stream_xor(out, out, nonce, key)
+  t.alike(out, message, 'decrypted')
+})
+
+test.skip('crypto_stream_xor state long stream', function (t) {
+  const nonce = random(sodium.crypto_stream_NONCEBYTES)
+  const key = random(sodium.crypto_stream_KEYBYTES)
+
+  const encState = Buffer.alloc(sodium.crypto_stream_xor_STATEBYTES)
+  const decState = Buffer.alloc(sodium.crypto_stream_xor_STATEBYTES)
+
+  sodium.crypto_stream_xor_init(encState, nonce, key)
+  sodium.crypto_stream_xor_init(decState, nonce, key)
+  const plain = []
+  const encrypted = []
+  const decrypted = []
+
+  for (let i = 0; i < 1000; i++) {
+    const next = random(61)
+    plain.push(next)
+
+    const enc = Buffer.alloc(61)
+    sodium.crypto_stream_xor_update(encState, enc, next)
+    encrypted.push(enc)
+
+    const dec = Buffer.alloc(61)
+    sodium.crypto_stream_xor_update(decState, dec, enc)
+    decrypted.push(dec)
+  }
+
+  const enc2 = Buffer.alloc(1000 * 61)
+  sodium.crypto_stream_xor(enc2, Buffer.concat(plain), nonce, key)
+
+  t.alike(Buffer.concat(encrypted), enc2, 'same as encrypting all at once')
+  t.alike(Buffer.concat(decrypted), Buffer.concat(plain), 'decrypts')
+})
+
+test.skip('crypto_stream_xor state long stream (random chunks)', function (t) {
+  const nonce = random(sodium.crypto_stream_NONCEBYTES)
+  const key = random(sodium.crypto_stream_KEYBYTES)
+
+  const encState = Buffer.alloc(sodium.crypto_stream_xor_STATEBYTES)
+  const decState = Buffer.alloc(sodium.crypto_stream_xor_STATEBYTES)
+
+  sodium.crypto_stream_xor_init(encState, nonce, key)
+  sodium.crypto_stream_xor_init(decState, nonce, key)
+  const plain = []
+  const encrypted = []
+  const decrypted = []
+
+  for (let i = 0; i < 10000; i++) {
+    const len = Math.floor(Math.random() * 256)
+    const next = random(len)
+    plain.push(next)
+
+    const enc = Buffer.alloc(len)
+    sodium.crypto_stream_xor_update(encState, enc, next)
+    encrypted.push(enc)
+
+    const dec = Buffer.alloc(len)
+    sodium.crypto_stream_xor_update(decState, dec, enc)
+    decrypted.push(dec)
+  }
+
+  const enc2 = Buffer.alloc(Buffer.concat(plain).length)
+  sodium.crypto_stream_xor(enc2, Buffer.concat(plain), nonce, key)
+
+  t.alike(Buffer.concat(encrypted), enc2, 'same as encrypting all at once')
+  t.alike(Buffer.concat(decrypted), Buffer.concat(plain), 'decrypts')
+})
+
+test.skip('crypto_stream_xor state long stream (random chunks) with empty buffers', function (t) {
+  const nonce = random(sodium.crypto_stream_NONCEBYTES)
+  const key = random(sodium.crypto_stream_KEYBYTES)
+
+  const encState = Buffer.alloc(sodium.crypto_stream_xor_STATEBYTES)
+  const decState = Buffer.alloc(sodium.crypto_stream_xor_STATEBYTES)
+
+  sodium.crypto_stream_xor_init(encState, nonce, key)
+  sodium.crypto_stream_xor_init(decState, nonce, key)
+  const plain = []
+  const encrypted = []
+  const decrypted = []
+
+  for (let i = 0; i < 10000; i++) {
+    const len = Math.floor(Math.random() * 256)
+    const next = random(len)
+    plain.push(next)
+
+    sodium.crypto_stream_xor_update(encState, Buffer.alloc(0), Buffer.alloc(0))
+
+    const enc = Buffer.alloc(len)
+    sodium.crypto_stream_xor_update(encState, enc, next)
+    encrypted.push(enc)
+
+    const dec = Buffer.alloc(len)
+    sodium.crypto_stream_xor_update(decState, dec, enc)
+    decrypted.push(dec)
+    sodium.crypto_stream_xor_update(decState, Buffer.alloc(0), Buffer.alloc(0))
+  }
+
+  const enc2 = Buffer.alloc(Buffer.concat(plain).length)
+  sodium.crypto_stream_xor(enc2, Buffer.concat(plain), nonce, key)
+
+  t.alike(Buffer.concat(encrypted), enc2, 'same as encrypting all at once')
+  t.alike(Buffer.concat(decrypted), Buffer.concat(plain), 'decrypts')
+})
+
+test.skip('crypto_stream_xor state after GC', function (t) {
+  const message = Buffer.from('Hello, world!')
+  let nonce = random(sodium.crypto_stream_NONCEBYTES)
+  let key = random(sodium.crypto_stream_KEYBYTES)
+
+  const out = Buffer.alloc(message.length)
+
+  const state = Buffer.alloc(sodium.crypto_stream_xor_STATEBYTES)
+  sodium.crypto_stream_xor_init(state, nonce, key)
+
+  const nonceCopy = Buffer.from(nonce.toString('hex'), 'hex')
+  const keyCopy = Buffer.from(key.toString('hex'), 'hex')
+  nonce = null
+  key = null
+
+  forceGC()
+
+  for (let i = 0; i < message.length; i++) {
+    sodium.crypto_stream_xor_update(state, out.slice(i, i + 1), message.slice(i, i + 1))
+  }
+
+  sodium.crypto_stream_xor_final(state)
+  sodium.crypto_stream_xor(out, out, nonceCopy, keyCopy)
+  t.alike(out, message, 'decrypted')
+})
+
+function random (n) {
+  const buf = Buffer.alloc(n)
+  sodium.randombytes_buf(buf)
+  return buf
+}
+
+function forceGC () {
+  require('v8').setFlagsFromString('--expose-gc')
+  require('vm').runInNewContext('gc')()
+}

test/crypto_stream_chacha20.js

@@ -0,0 +1,284 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+const tests = [
+  ['0000000000000000000000000000000000000000000000000000000000000000', '0000000000000000', '76b8e0ada0f13d90405d6ae55386bd28bdd219b8a08ded1aa836efcc8b770dc7da41597c5157488d7724e03fb8d84a376a43b8f41518a11cc387b669b2ee65869f07e7be5551387a98ba977c732d080dcb0f29a048e3656912c6533e32ee7aed29b721769ce64e43d57133b074d839d531ed1f28510afb45ace10a1f4b794d6f2d09a0e663266ce1ae7ed1081968a0758e718e997bd362c6b0c34634a9a0b35d'],
+  ['0000000000000000000000000000000000000000000000000000000000000001', '0000000000000000', '4540f05a9f1fb296d7736e7b208e3c96eb4fe1834688d2604f450952ed432d41bbe2a0b6ea7566d2a5d1e7e20d42af2c53d792b1c43fea817e9ad275ae5469633aeb5224ecf849929b9d828db1ced4dd832025e8018b8160b82284f3c949aa5a8eca00bbb4a73bdad192b5c42f73f2fd4e273644c8b36125a64addeb006c13a096d68b9ff7b57e7090f880392effd5b297a83bbaf2fbe8cf5d4618965e3dc776'],
+  ['0000000000000000000000000000000000000000000000000000000000000000', '0000000000000001', 'de9cba7bf3d69ef5e786dc63973f653a0b49e015adbff7134fcb7df137821031e85a050278a7084527214f73efc7fa5b5277062eb7a0433e445f41e31afab757283547e3d3d30ee0371c1e6025ff4c91b794a291cf7568d48ff84b37329e2730b12738a072a2b2c7169e326fe4893a7b2421bb910b79599a7ce4fbaee86be427c5ee0e8225eb6f48231fd504939d59eac8bd106cc138779b893c54da8758f62a'],
+  ['0000000000000000000000000000000000000000000000000000000000000000', '0100000000000000', 'ef3fdfd6c61578fbf5cf35bd3dd33b8009631634d21e42ac33960bd138e50d32111e4caf237ee53ca8ad6426194a88545ddc497a0b466e7d6bbdb0041b2f586b5305e5e44aff19b235936144675efbe4409eb7e8e5f1430f5f5836aeb49bb5328b017c4b9dc11f8a03863fa803dc71d5726b2b6b31aa32708afe5af1d6b690584d58792b271e5fdb92c486051c48b79a4d48a109bb2d0477956e74c25e93c3c2'],
+  ['000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f', '0001020304050607', 'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b733b46413042c9440049176905d3be59ea1c53f15916155c2be8241a38008b9a26bc35941e2444177c8ade6689de95264986d95889fb60e84629c9bd9a5acb1cc118be563eb9b3a4a472f82e09a7e778492b562ef7130e88dfe031c79db9d4f7c7a899151b9a475032b63fc385245fe054e3dd5a97a5f576fe064025']
+]
+
+const vectors = [
+  'f7010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101',
+  'f798a189040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404',
+  'f798a189f195e6070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707',
+  'f798a189f195e66982100a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a',
+  'f798a189f195e66982105ffb640d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d',
+  'f798a189f195e66982105ffb640bb775101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010',
+  'f798a189f195e66982105ffb640bb7757f579d131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313',
+  'f798a189f195e66982105ffb640bb7757f579da31602161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac561c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac31f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b73252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b733b4641282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b733b46413042c92b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b733b46413042c94400492e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b733b46413042c9440049176905313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b733b46413042c9440049176905d3be59343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b733b46413042c9440049176905d3be59ea1c53373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b733b46413042c9440049176905d3be59ea1c53f159163a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b733b46413042c9440049176905d3be59ea1c53f15916155c2b3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d',
+  'f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b733b46413042c9440049176905d3be59ea1c53f15916155c2be8241a404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040'
+]
+
+test('constants', function (t) {
+  t.ok(sodium.crypto_stream_chacha20_KEYBYTES > 0)
+  t.ok(sodium.crypto_stream_chacha20_NONCEBYTES > 0)
+  t.ok(sodium.crypto_stream_chacha20_MESSAGEBYTES_MAX > 0)
+})
+
+test('libsodium crypto_stream_chacha20', function (t) {
+  const key = Buffer.alloc(sodium.crypto_stream_chacha20_KEYBYTES)
+  const nonce = Buffer.alloc(sodium.crypto_stream_chacha20_NONCEBYTES)
+
+  const out = Buffer.alloc(160)
+
+  for (let i = 0; i < tests.length; i++) {
+    key.write(tests[i][0], 0, key.byteLength, 'hex')
+    nonce.write(tests[i][1], 0, nonce.byteLength, 'hex')
+    sodium.crypto_stream_chacha20(out, nonce, key)
+    t.alike(out, Buffer.from(tests[i][2], 'hex'))
+    for (let plen = 0; plen < out.byteLength; plen++) {
+      const part = Buffer.alloc(plen)
+      sodium.crypto_stream_chacha20_xor(part, out.subarray(0, plen), nonce, key)
+      if (part.every(b => b === 0) === false) return t.fail()
+    }
+  }
+
+  for (let plen = 1, i = 0; plen < 66; plen += 3, i++) {
+    out.fill(plen & 0xff)
+    sodium.crypto_stream_chacha20(out.subarray(0, plen), nonce, key)
+    if (out.equals(Buffer.from(vectors[i], 'hex')) === false) return t.fail()
+  }
+
+  sodium.randombytes_buf(out)
+  sodium.crypto_stream_chacha20(out, nonce, key)
+  t.alike(out, Buffer.from('f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b733b46413042c9440049176905d3be59ea1c53f15916155c2be8241a38008b9a26bc35941e2444177c8ade6689de95264986d95889fb60e84629c9bd9a5acb1cc118be563eb9b3a4a472f82e09a7e778492b562ef7130e88dfe031c79db9d4f7c7a899151b9a475032b63fc385245fe054e3dd5a97a5f576fe064025', 'hex'))
+
+  t.execution(() => sodium.crypto_stream_chacha20(out.subarray(0, 0), nonce, key))
+  t.execution(() => sodium.crypto_stream_chacha20_xor(out.subarray(0, 0), Buffer.alloc(0), nonce, key))
+  t.execution(() => sodium.crypto_stream_chacha20_xor(out.subarray(0, 0), Buffer.alloc(0), nonce, key))
+  t.execution(() => sodium.crypto_stream_chacha20_xor_ic(out.subarray(0, 0), Buffer.alloc(0), nonce, 1, key))
+
+  out.fill(0x42)
+  sodium.crypto_stream_chacha20_xor(out, out, nonce, key)
+  t.alike(out, Buffer.from('b5dae3cbb3d7a42bc0521db92649f5373d15dfe15440bed1ae43ee14ba18818376e616393179040372008b06420b552b4791fc1ba85e11b31b54571e69aa66587a42c9d864fe77d65c6606553ec89c24cb9cd7640bc49b1acbb922aa046b8bffd818895e835afc147cfbf1e6e630ba6c4be5a53a0b69146cb5514cca9da27385dffb96b585eadb5759d8051270f47d81c7661da216a19f18d5e7b734bc440267', 'hex'))
+
+  sodium.crypto_stream_chacha20_xor_ic(out, out, nonce, 0, key)
+  t.alike(out, Buffer.from('42424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242', 'hex'))
+
+  sodium.crypto_stream_chacha20_xor_ic(out, out, nonce, 1, key)
+  t.alike(out, Buffer.from('7a42c9d864fe77d65c6606553ec89c24cb9cd7640bc49b1acbb922aa046b8bffd818895e835afc147cfbf1e6e630ba6c4be5a53a0b69146cb5514cca9da27385dffb96b585eadb5759d8051270f47d81c7661da216a19f18d5e7b734bc440267918c466e1428f08745f37a99c77c7f2b1b244bd4162e8b86e4a8bf85358202954ced04b52fef7b3ba787744e715554285ecb0ed6e133c528d69d346abc0ce8b0', 'hex'))
+})
+
+test('crypto_stream_chacha20', function (t) {
+  const buf = Buffer.alloc(50)
+  const nonce = random(sodium.crypto_stream_chacha20_NONCEBYTES)
+  const key = random(sodium.crypto_stream_chacha20_KEYBYTES)
+
+  sodium.crypto_stream_chacha20(buf, nonce, key)
+
+  t.unlike(buf, Buffer.alloc(50), 'contains noise now')
+  const copy = Buffer.from(buf.toString('hex'), 'hex')
+
+  sodium.crypto_stream_chacha20(buf, nonce, key)
+  t.alike(buf, copy, 'predictable from nonce, key')
+
+  t.end()
+})
+
+test.skip('crypto_stream_chacha20_xor state', function (t) {
+  const message = Buffer.from('Hello, world!')
+  const nonce = random(sodium.crypto_stream_chacha20_NONCEBYTES)
+  const key = random(sodium.crypto_stream_chacha20_KEYBYTES)
+
+  const out = Buffer.alloc(message.length)
+
+  const state = Buffer.alloc(sodium.crypto_stream_chacha20_xor_STATEBYTES)
+  sodium.crypto_stream_chacha20_xor_init(state, nonce, key)
+
+  for (let i = 0; i < message.length; i++) {
+    sodium.crypto_stream_chacha20_xor_update(state, out.slice(i, i + 1), message.slice(i, i + 1))
+  }
+
+  sodium.crypto_stream_chacha20_xor_final(state)
+  sodium.crypto_stream_chacha20_xor(out, out, nonce, key)
+  t.alike(out, message, 'decrypted')
+})
+
+test.skip('crypto_stream_chacha20_xor state with empty buffers', function (t) {
+  const message = Buffer.from('Hello, world!')
+  const nonce = random(sodium.crypto_stream_chacha20_NONCEBYTES)
+  const key = random(sodium.crypto_stream_chacha20_KEYBYTES)
+
+  const out = Buffer.alloc(message.length)
+
+  const state = Buffer.alloc(sodium.crypto_stream_chacha20_xor_STATEBYTES)
+  sodium.crypto_stream_chacha20_xor_init(state, nonce, key)
+
+  sodium.crypto_stream_chacha20_xor_update(state, Buffer.alloc(0), Buffer.alloc(0))
+
+  for (let i = 0; i < message.length; i++) {
+    sodium.crypto_stream_chacha20_xor_update(state, out.slice(i, i + 1), message.slice(i, i + 1))
+    sodium.crypto_stream_chacha20_xor_update(state, Buffer.alloc(0), Buffer.alloc(0))
+  }
+
+  sodium.crypto_stream_chacha20_xor_final(state)
+  sodium.crypto_stream_chacha20_xor(out, out, nonce, key)
+  t.alike(out, message, 'decrypted')
+})
+
+test.skip('crypto_stream_chacha20_xor state long stream', function (t) {
+  const nonce = random(sodium.crypto_stream_chacha20_NONCEBYTES)
+  const key = random(sodium.crypto_stream_chacha20_KEYBYTES)
+
+  const encState = Buffer.alloc(sodium.crypto_stream_chacha20_xor_STATEBYTES)
+  const decState = Buffer.alloc(sodium.crypto_stream_chacha20_xor_STATEBYTES)
+
+  sodium.crypto_stream_chacha20_xor_init(encState, nonce, key)
+  sodium.crypto_stream_chacha20_xor_init(decState, nonce, key)
+  const plain = []
+  const encrypted = []
+  const decrypted = []
+
+  for (let i = 0; i < 1000; i++) {
+    const next = random(61)
+    plain.push(next)
+
+    const enc = Buffer.alloc(61)
+    sodium.crypto_stream_chacha20_xor_update(encState, enc, next)
+    encrypted.push(enc)
+
+    const dec = Buffer.alloc(61)
+    sodium.crypto_stream_chacha20_xor_update(decState, dec, enc)
+    decrypted.push(dec)
+  }
+
+  const enc2 = Buffer.alloc(1000 * 61)
+  sodium.crypto_stream_chacha20_xor(enc2, Buffer.concat(plain), nonce, key)
+
+  t.alike(Buffer.concat(encrypted), enc2, 'same as encrypting all at once')
+  t.alike(Buffer.concat(decrypted), Buffer.concat(plain), 'decrypts')
+})
+
+test.skip('crypto_stream_chacha20_xor state long stream (random chunks)', function (t) {
+  const nonce = random(sodium.crypto_stream_chacha20_NONCEBYTES)
+  const key = random(sodium.crypto_stream_chacha20_KEYBYTES)
+
+  const encState = Buffer.alloc(sodium.crypto_stream_chacha20_xor_STATEBYTES)
+  const decState = Buffer.alloc(sodium.crypto_stream_chacha20_xor_STATEBYTES)
+
+  sodium.crypto_stream_chacha20_xor_init(encState, nonce, key)
+  sodium.crypto_stream_chacha20_xor_init(decState, nonce, key)
+  const plain = []
+  const encrypted = []
+  const decrypted = []
+
+  for (let i = 0; i < 10000; i++) {
+    const len = Math.floor(Math.random() * 256)
+    const next = random(len)
+    plain.push(next)
+
+    const enc = Buffer.alloc(len)
+    sodium.crypto_stream_chacha20_xor_update(encState, enc, next)
+    encrypted.push(enc)
+
+    const dec = Buffer.alloc(len)
+    sodium.crypto_stream_chacha20_xor_update(decState, dec, enc)
+    decrypted.push(dec)
+  }
+
+  const enc2 = Buffer.alloc(Buffer.concat(plain).length)
+  sodium.crypto_stream_chacha20_xor(enc2, Buffer.concat(plain), nonce, key)
+
+  t.alike(Buffer.concat(encrypted), enc2, 'same as encrypting all at once')
+  t.alike(Buffer.concat(decrypted), Buffer.concat(plain), 'decrypts')
+})
+
+test.skip('crypto_stream_chacha20_xor state long stream (random chunks) with empty buffers', function (t) {
+  const nonce = random(sodium.crypto_stream_chacha20_NONCEBYTES)
+  const key = random(sodium.crypto_stream_chacha20_KEYBYTES)
+
+  const encState = Buffer.alloc(sodium.crypto_stream_chacha20_xor_STATEBYTES)
+  const decState = Buffer.alloc(sodium.crypto_stream_chacha20_xor_STATEBYTES)
+
+  sodium.crypto_stream_chacha20_xor_init(encState, nonce, key)
+  sodium.crypto_stream_chacha20_xor_init(decState, nonce, key)
+  const plain = []
+  const encrypted = []
+  const decrypted = []
+
+  for (let i = 0; i < 10000; i++) {
+    const len = Math.floor(Math.random() * 256)
+    const next = random(len)
+    plain.push(next)
+
+    sodium.crypto_stream_chacha20_xor_update(encState, Buffer.alloc(0), Buffer.alloc(0))
+
+    const enc = Buffer.alloc(len)
+    sodium.crypto_stream_chacha20_xor_update(encState, enc, next)
+    encrypted.push(enc)
+
+    const dec = Buffer.alloc(len)
+    sodium.crypto_stream_chacha20_xor_update(decState, dec, enc)
+    decrypted.push(dec)
+    sodium.crypto_stream_chacha20_xor_update(decState, Buffer.alloc(0), Buffer.alloc(0))
+  }
+
+  const enc2 = Buffer.alloc(Buffer.concat(plain).length)
+  sodium.crypto_stream_chacha20_xor(enc2, Buffer.concat(plain), nonce, key)
+
+  t.alike(Buffer.concat(encrypted), enc2, 'same as encrypting all at once')
+  t.alike(Buffer.concat(decrypted), Buffer.concat(plain), 'decrypts')
+})
+
+test.skip('crypto_stream_chacha20_xor state after GC', function (t) {
+  const message = Buffer.from('Hello, world!')
+  let nonce = random(sodium.crypto_stream_chacha20_NONCEBYTES)
+  let key = random(sodium.crypto_stream_chacha20_KEYBYTES)
+
+  const out = Buffer.alloc(message.length)
+
+  const state = Buffer.alloc(sodium.crypto_stream_chacha20_xor_STATEBYTES)
+  sodium.crypto_stream_chacha20_xor_init(state, nonce, key)
+
+  const nonceCopy = Buffer.from(nonce.toString('hex'), 'hex')
+  const keyCopy = Buffer.from(key.toString('hex'), 'hex')
+  nonce = null
+  key = null
+
+  forceGC()
+
+  for (let i = 0; i < message.length; i++) {
+    sodium.crypto_stream_chacha20_xor_update(state, out.slice(i, i + 1), message.slice(i, i + 1))
+  }
+
+  sodium.crypto_stream_chacha20_xor_final(state)
+  sodium.crypto_stream_chacha20_xor(out, out, nonceCopy, keyCopy)
+  t.alike(out, message, 'decrypted')
+})
+
+function random (n) {
+  const buf = Buffer.alloc(n)
+  sodium.randombytes_buf(buf)
+  return buf
+}
+
+function forceGC () {
+  require('v8').setFlagsFromString('--expose-gc')
+  require('vm').runInNewContext('gc')()
+}

test/crypto_stream_chacha20_ietf.js

@@ -0,0 +1,303 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+const tests = [
+  ['0000000000000000000000000000000000000000000000000000000000000000', '000000000000000000000000', 0, '76b8e0ada0f13d90405d6ae55386bd28bdd219b8a08ded1aa836efcc8b770dc7da41597c5157488d7724e03fb8d84a376a43b8f41518a11cc387b669b2ee65869f07e7be5551387a98ba977c732d080dcb0f29a048e3656912c6533e32ee7aed29b721769ce64e43d57133b074d839d531ed1f28510afb45ace10a1f4b794d6f2d09a0e663266ce1ae7ed1081968a0758e718e997bd362c6b0c34634a9a0b35d'],
+  ['0000000000000000000000000000000000000000000000000000000000000000', '000000000000000000000000', 1, '9f07e7be5551387a98ba977c732d080dcb0f29a048e3656912c6533e32ee7aed29b721769ce64e43d57133b074d839d531ed1f28510afb45ace10a1f4b794d6f2d09a0e663266ce1ae7ed1081968a0758e718e997bd362c6b0c34634a9a0b35d012737681f7b5d0f281e3afde458bc1e73d2d313c9cf94c05ff3716240a248f21320a058d7b3566bd520daaa3ed2bf0ac5b8b120fb852773c3639734b45c91a4'],
+  ['0000000000000000000000000000000000000000000000000000000000000001', '000000000000000000000000', 1, '3aeb5224ecf849929b9d828db1ced4dd832025e8018b8160b82284f3c949aa5a8eca00bbb4a73bdad192b5c42f73f2fd4e273644c8b36125a64addeb006c13a096d68b9ff7b57e7090f880392effd5b297a83bbaf2fbe8cf5d4618965e3dc776cd430d9b4e7eda8a767fb0e860319aadb5fd96a855de1fbfc92cb0489190cfdd87da6dbf1f736a2d499941ca097e5170bd685578611323120cebf296181ed4f5'],
+  ['00ff000000000000000000000000000000000000000000000000000000000000', '000000000000000000000000', 2, '72d54dfbf12ec44b362692df94137f328fea8da73990265ec1bbbea1ae9af0ca13b25aa26cb4a648cb9b9d1be65b2c0924a66c54d545ec1b7374f4872e99f096bf74dbd52cc4fc95ceb6097fe5e65358c9dbc0a5ecbf7894a132a9a54ae3e951f2e9f209aa9c3d9a877ac9dab62433d2961a17d103e455dfb7337c90f6857aad233065955a212b5c7a8eab4dc8a629e5b6b8ba914afd06de7177054b33d21c96'],
+  ['0000000000000000000000000000000000000000000000000000000000000000', '000000000000000000000002', 0, 'c2c64d378cd536374ae204b9ef933fcd1a8b2288b3dfa49672ab765b54ee27c78a970e0e955c14f3a88e741b97c286f75f8fc299e8148362fa198a39531bed6d1a91288c874ec254f322c2a197340c55bb3e9b3998f7de2309486a0bb494abd20c9c5ef99c1370d61e77f408ac5514f49202bcc6828d45409d2d1416f8ae106b06ebd2541256264fa415bd54cb12e1d4449ed85299a1b7a249b75ff6c89b2e3f'],
+  ['000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f', '000000090000004a00000000', 1, '10f1e7e4d13b5915500fdd1fa32071c4c7d1f4c733c068030422aa9ac3d46c4ed2826446079faa0914c2d705d98b02a2b5129cd1de164eb9cbd083e8a2503c4e0a88837739d7bf4ef8ccacb0ea2bb9d69d56c394aa351dfda5bf459f0a2e9fe8e721f89255f9c486bf21679c683d4f9c5cf2fa27865526005b06ca374c86af3bdcbfbdcb83be65862ed5c20eae5a43241d6a92da6dca9a156be25297f51c2718'],
+  ['000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f', '000000090000004a00000000', 0xfeffffff, '75924bad7831b25662dbac54b46827990b6168ae990e7bd7e1fd2ad282bf23ef052c7d1a0a6c1ef862070943a0d4da24705fbc006dfb85e2af18c0a264d772a44c70fbedac9d6a6867ff6be0a32826507f2c784101583211c9e2453d4cc8b283d5e86682bd4bf511271b91dbd351415f5a009d1f78b64085a9a4341be7d42e2679d57e2747097f0129950e2c9e9ca1356022d45da252af71ac37f351a2e77911']
+]
+
+const vectors = [
+  '8a010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101',
+  '8adc91fd040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404',
+  '8adc91fd9ff4f0070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707070707',
+  '8adc91fd9ff4f0f51b0f0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a',
+  '8adc91fd9ff4f0f51b0fad50ff0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d',
+  '8adc91fd9ff4f0f51b0fad50ff15d637101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efd131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919191919',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a742001c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c1c',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a74200503c151f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f1f',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a74200503c1582cd98222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a74200503c1582cd9833367d252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525252525',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a74200503c1582cd9833367d0a54d5282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828282828',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a74200503c1582cd9833367d0a54d57d3c9e2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a74200503c1582cd9833367d0a54d57d3c9e998f492e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e2e',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a74200503c1582cd9833367d0a54d57d3c9e998f490ee69c313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131313131',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a74200503c1582cd9833367d0a54d57d3c9e998f490ee69ca34c1f343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a74200503c1582cd9833367d0a54d57d3c9e998f490ee69ca34c1ff9e939373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a74200503c1582cd9833367d0a54d57d3c9e998f490ee69ca34c1ff9e939a755843a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a3a',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a74200503c1582cd9833367d0a54d57d3c9e998f490ee69ca34c1ff9e939a75584c52d693d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d3d',
+  '8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a74200503c1582cd9833367d0a54d57d3c9e998f490ee69ca34c1ff9e939a75584c52d690a35d4404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040404040'
+]
+
+test('constants', function (t) {
+  t.ok(sodium.crypto_stream_chacha20_ietf_KEYBYTES > 0)
+  t.ok(sodium.crypto_stream_chacha20_ietf_NONCEBYTES > 0)
+  t.ok(sodium.crypto_stream_chacha20_ietf_MESSAGEBYTES_MAX > 0)
+})
+
+test('libsodium crypto_stream_chacha20_ietf', function (t) {
+  const key = Buffer.alloc(sodium.crypto_stream_chacha20_ietf_KEYBYTES)
+  const nonce = Buffer.alloc(sodium.crypto_stream_chacha20_ietf_NONCEBYTES)
+
+  const out = Buffer.alloc(160)
+
+  for (let i = 0; i < tests.length; i++) {
+    key.write(tests[i][0], 0, key.byteLength, 'hex')
+    nonce.write(tests[i][1], 0, nonce.byteLength, 'hex')
+    out.fill(0)
+    sodium.crypto_stream_chacha20_ietf_xor_ic(out, out, nonce, tests[i][2], key)
+    t.alike(out, Buffer.from(tests[i][3], 'hex'), 'crypto_stream_chacha20_ietf_xor_ic vector ' + i)
+    for (let plen = 0; plen < out.byteLength; plen++) {
+      const part = Buffer.alloc(plen)
+      sodium.crypto_stream_chacha20_ietf_xor_ic(part, out.subarray(0, plen), nonce, tests[i][2], key)
+      if (part.every(b => b === 0) === false) return t.fail()
+    }
+  }
+
+  for (let plen = 1, i = 0; plen < 66; plen += 3, i++) {
+    out.fill(plen & 0xff)
+    sodium.crypto_stream_chacha20_ietf(out.subarray(0, plen), nonce, key)
+    if (out.equals(Buffer.from(vectors[i], 'hex')) === false) return t.fail()
+  }
+
+  sodium.randombytes_buf(out)
+  sodium.crypto_stream_chacha20_ietf(out, nonce, key)
+  t.alike(out, Buffer.from('8adc91fd9ff4f0f51b0fad50ff15d637e40efda206cc52c783a74200503c1582cd9833367d0a54d57d3c9e998f490ee69ca34c1ff9e939a75584c52d690a35d410f1e7e4d13b5915500fdd1fa32071c4c7d1f4c733c068030422aa9ac3d46c4ed2826446079faa0914c2d705d98b02a2b5129cd1de164eb9cbd083e8a2503c4e0a88837739d7bf4ef8ccacb0ea2bb9d69d56c394aa351dfda5bf459f0a2e9fe8', 'hex'))
+
+  t.execution(() => sodium.crypto_stream_chacha20_ietf(out.subarray(0, 0), nonce, key))
+  t.execution(() => sodium.crypto_stream_chacha20_ietf_xor(out.subarray(0, 0), Buffer.alloc(0), nonce, key))
+  t.execution(() => sodium.crypto_stream_chacha20_ietf_xor(out.subarray(0, 0), Buffer.alloc(0), nonce, key))
+  t.execution(() => sodium.crypto_stream_chacha20_ietf_xor_ic(out.subarray(0, 0), Buffer.alloc(0), nonce, 1, key))
+
+  out.fill(0x42)
+  sodium.crypto_stream_chacha20_ietf_xor(out, out, nonce, key)
+  t.alike(out, Buffer.from('c89ed3bfddb6b2b7594def12bd579475a64cbfe0448e1085c1e50042127e57c08fda71743f4816973f7edcdbcd0b4ca4dee10e5dbbab7be517c6876f2b48779652b3a5a693791b57124d9f5de16233868593b68571822a414660e8d881962e0c90c0260445dde84b568095479bc940e0f750de939c540cfb8992c1aae0127e0c48cac1357b95fd0cba8eeef2a869fb94df1481d6e8775fbfe7fd07dd486cddaa', 'hex'))
+
+  sodium.crypto_stream_chacha20_ietf_xor_ic(out, out, nonce, 0, key)
+  t.alike(out, Buffer.from('42424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242', 'hex'))
+
+  sodium.crypto_stream_chacha20_ietf_xor_ic(out, out, nonce, 1, key)
+  t.alike(out, Buffer.from('52b3a5a693791b57124d9f5de16233868593b68571822a414660e8d881962e0c90c0260445dde84b568095479bc940e0f750de939c540cfb8992c1aae0127e0c48cac1357b95fd0cba8eeef2a869fb94df1481d6e8775fbfe7fd07dd486cddaaa563bad017bb86c4fd6325de2a7f0dde1eb0b865c4176442194488750ec4ed799efdff89c1fc27c46c97804cec1801665f28d0982f88d85729a010d5b75e655a', 'hex'))
+})
+
+test('crypto_stream_chacha20_ietf', function (t) {
+  const buf = Buffer.alloc(50)
+  const nonce = random(sodium.crypto_stream_chacha20_ietf_NONCEBYTES)
+  const key = random(sodium.crypto_stream_chacha20_ietf_KEYBYTES)
+
+  sodium.crypto_stream_chacha20_ietf(buf, nonce, key)
+
+  t.unlike(buf, Buffer.alloc(50), 'contains noise now')
+  const copy = Buffer.from(buf.toString('hex'), 'hex')
+
+  sodium.crypto_stream_chacha20_ietf(buf, nonce, key)
+  t.alike(buf, copy, 'predictable from nonce, key')
+
+  t.end()
+})
+
+test('crypto_stream_chacha20_ietf_xor', function (t) {
+  const message = Buffer.from('Hello, World!')
+  const nonce = random(sodium.crypto_stream_chacha20_ietf_NONCEBYTES)
+  const key = random(sodium.crypto_stream_chacha20_ietf_KEYBYTES)
+
+  sodium.crypto_stream_chacha20_ietf_xor(message, message, nonce, key)
+
+  t.unlike(message, Buffer.from('Hello, World!'), 'encrypted')
+
+  sodium.crypto_stream_chacha20_ietf_xor(message, message, nonce, key)
+
+  t.alike(message, Buffer.from('Hello, World!'), 'decrypted')
+
+  t.end()
+})
+
+test.skip('crypto_stream_chacha20_ietf_xor state', function (t) {
+  const message = Buffer.from('Hello, world!')
+  const nonce = random(sodium.crypto_stream_chacha20_ietf_NONCEBYTES)
+  const key = random(sodium.crypto_stream_chacha20_ietf_KEYBYTES)
+
+  const out = Buffer.alloc(message.length)
+
+  const state = Buffer.alloc(sodium.crypto_stream_chacha20_ietf_xor_STATEBYTES)
+  sodium.crypto_stream_chacha20_ietf_xor_init(state, nonce, key)
+
+  for (let i = 0; i < message.length; i++) {
+    sodium.crypto_stream_chacha20_ietf_xor_update(state, out.slice(i, i + 1), message.slice(i, i + 1))
+  }
+
+  sodium.crypto_stream_chacha20_ietf_xor_final(state)
+  sodium.crypto_stream_chacha20_ietf_xor(out, out, nonce, key)
+  t.alike(out, message, 'decrypted')
+})
+
+test.skip('crypto_stream_chacha20_ietf_xor state with empty buffers', function (t) {
+  const message = Buffer.from('Hello, world!')
+  const nonce = random(sodium.crypto_stream_chacha20_ietf_NONCEBYTES)
+  const key = random(sodium.crypto_stream_chacha20_ietf_KEYBYTES)
+
+  const out = Buffer.alloc(message.length)
+
+  const state = Buffer.alloc(sodium.crypto_stream_chacha20_ietf_xor_STATEBYTES)
+  sodium.crypto_stream_chacha20_ietf_xor_init(state, nonce, key)
+
+  sodium.crypto_stream_chacha20_ietf_xor_update(state, Buffer.alloc(0), Buffer.alloc(0))
+
+  for (let i = 0; i < message.length; i++) {
+    sodium.crypto_stream_chacha20_ietf_xor_update(state, out.slice(i, i + 1), message.slice(i, i + 1))
+    sodium.crypto_stream_chacha20_ietf_xor_update(state, Buffer.alloc(0), Buffer.alloc(0))
+  }
+
+  sodium.crypto_stream_chacha20_ietf_xor_final(state)
+  sodium.crypto_stream_chacha20_ietf_xor(out, out, nonce, key)
+  t.alike(out, message, 'decrypted')
+})
+
+test.skip('crypto_stream_chacha20_ietf_xor state long stream', function (t) {
+  const nonce = random(sodium.crypto_stream_chacha20_ietf_NONCEBYTES)
+  const key = random(sodium.crypto_stream_chacha20_ietf_KEYBYTES)
+
+  const encState = Buffer.alloc(sodium.crypto_stream_chacha20_ietf_xor_STATEBYTES)
+  const decState = Buffer.alloc(sodium.crypto_stream_chacha20_ietf_xor_STATEBYTES)
+
+  sodium.crypto_stream_chacha20_ietf_xor_init(encState, nonce, key)
+  sodium.crypto_stream_chacha20_ietf_xor_init(decState, nonce, key)
+  const plain = []
+  const encrypted = []
+  const decrypted = []
+
+  for (let i = 0; i < 1000; i++) {
+    const next = random(61)
+    plain.push(next)
+
+    const enc = Buffer.alloc(61)
+    sodium.crypto_stream_chacha20_ietf_xor_update(encState, enc, next)
+    encrypted.push(enc)
+
+    const dec = Buffer.alloc(61)
+    sodium.crypto_stream_chacha20_ietf_xor_update(decState, dec, enc)
+    decrypted.push(dec)
+  }
+
+  const enc2 = Buffer.alloc(1000 * 61)
+  sodium.crypto_stream_chacha20_ietf_xor(enc2, Buffer.concat(plain), nonce, key)
+
+  t.alike(Buffer.concat(encrypted), enc2, 'same as encrypting all at once')
+  t.alike(Buffer.concat(decrypted), Buffer.concat(plain), 'decrypts')
+})
+
+test.skip('crypto_stream_chacha20_ietf_xor state long stream (random chunks)', function (t) {
+  const nonce = random(sodium.crypto_stream_chacha20_ietf_NONCEBYTES)
+  const key = random(sodium.crypto_stream_chacha20_ietf_KEYBYTES)
+
+  const encState = Buffer.alloc(sodium.crypto_stream_chacha20_ietf_xor_STATEBYTES)
+  const decState = Buffer.alloc(sodium.crypto_stream_chacha20_ietf_xor_STATEBYTES)
+
+  sodium.crypto_stream_chacha20_ietf_xor_init(encState, nonce, key)
+  sodium.crypto_stream_chacha20_ietf_xor_init(decState, nonce, key)
+  const plain = []
+  const encrypted = []
+  const decrypted = []
+
+  for (let i = 0; i < 10000; i++) {
+    const len = Math.floor(Math.random() * 256)
+    const next = random(len)
+    plain.push(next)
+
+    const enc = Buffer.alloc(len)
+    sodium.crypto_stream_chacha20_ietf_xor_update(encState, enc, next)
+    encrypted.push(enc)
+
+    const dec = Buffer.alloc(len)
+    sodium.crypto_stream_chacha20_ietf_xor_update(decState, dec, enc)
+    decrypted.push(dec)
+  }
+
+  const enc2 = Buffer.alloc(Buffer.concat(plain).length)
+  sodium.crypto_stream_chacha20_ietf_xor(enc2, Buffer.concat(plain), nonce, key)
+
+  t.alike(Buffer.concat(encrypted), enc2, 'same as encrypting all at once')
+  t.alike(Buffer.concat(decrypted), Buffer.concat(plain), 'decrypts')
+})
+
+test.skip('crypto_stream_chacha20_ietf_xor state long stream (random chunks) with empty buffers', function (t) {
+  const nonce = random(sodium.crypto_stream_chacha20_ietf_NONCEBYTES)
+  const key = random(sodium.crypto_stream_chacha20_ietf_KEYBYTES)
+
+  const encState = Buffer.alloc(sodium.crypto_stream_chacha20_ietf_xor_STATEBYTES)
+  const decState = Buffer.alloc(sodium.crypto_stream_chacha20_ietf_xor_STATEBYTES)
+
+  sodium.crypto_stream_chacha20_ietf_xor_init(encState, nonce, key)
+  sodium.crypto_stream_chacha20_ietf_xor_init(decState, nonce, key)
+  const plain = []
+  const encrypted = []
+  const decrypted = []
+
+  for (let i = 0; i < 10000; i++) {
+    const len = Math.floor(Math.random() * 256)
+    const next = random(len)
+    plain.push(next)
+
+    sodium.crypto_stream_chacha20_ietf_xor_update(encState, Buffer.alloc(0), Buffer.alloc(0))
+
+    const enc = Buffer.alloc(len)
+    sodium.crypto_stream_chacha20_ietf_xor_update(encState, enc, next)
+    encrypted.push(enc)
+
+    const dec = Buffer.alloc(len)
+    sodium.crypto_stream_chacha20_ietf_xor_update(decState, dec, enc)
+    decrypted.push(dec)
+    sodium.crypto_stream_chacha20_ietf_xor_update(decState, Buffer.alloc(0), Buffer.alloc(0))
+  }
+
+  const enc2 = Buffer.alloc(Buffer.concat(plain).length)
+  sodium.crypto_stream_chacha20_ietf_xor(enc2, Buffer.concat(plain), nonce, key)
+
+  t.alike(Buffer.concat(encrypted), enc2, 'same as encrypting all at once')
+  t.alike(Buffer.concat(decrypted), Buffer.concat(plain), 'decrypts')
+})
+
+test.skip('crypto_stream_chacha20_xor state after GC', function (t) {
+  const message = Buffer.from('Hello, world!')
+  let nonce = random(sodium.crypto_stream_chacha20_ietf_NONCEBYTES)
+  let key = random(sodium.crypto_stream_chacha20_ietf_KEYBYTES)
+
+  const out = Buffer.alloc(message.length)
+
+  const state = Buffer.alloc(sodium.crypto_stream_chacha20_ietf_xor_STATEBYTES)
+  sodium.crypto_stream_chacha20_ietf_xor_init(state, nonce, key)
+
+  const nonceCopy = Buffer.from(nonce.toString('hex'), 'hex')
+  const keyCopy = Buffer.from(key.toString('hex'), 'hex')
+  nonce = null
+  key = null
+
+  forceGC()
+
+  for (let i = 0; i < message.length; i++) {
+    sodium.crypto_stream_chacha20_ietf_xor_update(state, out.slice(i, i + 1), message.slice(i, i + 1))
+  }
+
+  sodium.crypto_stream_chacha20_ietf_xor_final(state)
+  sodium.crypto_stream_chacha20_ietf_xor(out, out, nonceCopy, keyCopy)
+  t.alike(out, message, 'decrypted')
+})
+
+function random (n) {
+  const buf = Buffer.alloc(n)
+  sodium.randombytes_buf(buf)
+  return buf
+}
+
+function forceGC () {
+  require('v8').setFlagsFromString('--expose-gc')
+  require('vm').runInNewContext('gc')()
+}

test/fixtures/crypto_kdf.json

@@ -0,0 +1,78 @@
+[
+  {"error": false, "id":0, "context":"4b44462074657374", "key":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "subkey_len":64, "subkey":"a0c724404728c8bb95e5433eb6a9716171144d61efb23e74b873fcbeda51d8071b5d70aae12066dfc94ce943f145aa176c055040c3dd73b0a15e36254d450614"},
+  {"error": false, "id":1, "context":"4b44462074657374", "key":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "subkey_len":64, "subkey":"02507f144fa9bf19010bf7c70b235b4c2663cc00e074f929602a5e2c10a780757d2a3993d06debc378a90efdac196dd841817b977d67b786804f6d3cd585bab5"},
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+  {"error": false, "id":55, "context":"4b44462074657374", "key":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "subkey_len":55, "subkey":"ec545dcf456d1b0907c07418a42bf2b3d668b4797ba6874bf0d563f5f429a820f02177dd4d05e639a06807c9619fee54ffe07712493543"},
+  {"error": false, "id":56, "context":"4b44462074657374", "key":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "subkey_len":56, "subkey":"b0106957626894586682a275f69ed4533e2f94334cc0430394b68d82679aca00dd579e712bdd2d7f5bbce9a050269739bd8427b75b06027f"},
+  {"error": false, "id":57, "context":"4b44462074657374", "key":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "subkey_len":57, "subkey":"05751bfeebb480c9bca0d25d8197e2673845f405d7fb9793e29169ac19956c525f6e637f3d5ea50597b04342afed4ca16f988b4f21a34f1902"},
+  {"error": false, "id":58, "context":"4b44462074657374", "key":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "subkey_len":58, "subkey":"7b4e4294d3f64085b5c09be73548f1f5cb5c6f04e57ce6cdd3077e2fb37640bf1ca0c6393b87d48a6b7e3e42628bd30fca132ded03ce51f71d9d"},
+  {"error": false, "id":59, "context":"4b44462074657374", "key":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "subkey_len":59, "subkey":"082d248862cbfd71a634769a4b1cf52a4af47ace5b9ea4d583ca52207efc7234a6d321788130cbdec122579ad03afe00bc68c9fb3f68dd0532a96f"},
+  {"error": false, "id":60, "context":"4b44462074657374", "key":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "subkey_len":60, "subkey":"a2b39b4428d981013e8a9c0e41b3eed504983fc18dc4b60332b1ab28b9705228147bdb95cc17889d5f0f9cfb7fd16f9d414b1a829346a8922e945b40"},
+  {"error": false, "id":61, "context":"4b44462074657374", "key":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "subkey_len":61, "subkey":"efbf0f8bda1b9ef24fe389f1cf0c0c8a08bca03fc95badabb79a487d8ce1351683f59183aa6229f880d69ad60114ac128f69b2be250109972ab1f3fc3b"},
+  {"error": false, "id":62, "context":"4b44462074657374", "key":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "subkey_len":62, "subkey":"dfe0ba2a6de25fa06b47375e9d9cf6c6fa1493a8a2a81c28d6e09bc161057b445659db76e92e349ff44f34a2a9e3bcaa6b84b21bae56f1499c170ab81af0"},
+  {"error": false, "id":63, "context":"4b44462074657374", "key":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "subkey_len":63, "subkey":"02f9cbdb10759314515b01379c474ad74a1b575137bd3949776dbcfc3e18060cb13ee1f6dcf86035768fc7be63e01de321cacbfade209900dd94273fd8e176"},
+  {"error": false, "id":64, "context":"4b44462074657374", "key":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "subkey_len":64, "subkey":"06ae14308eeeda62a00cb6d5edf18d1707029515db98f472bbf0617419301b1d4f4f2ab65849446be46f87e1d31c6c74283897b9976f70d8a16253ac927e0d9f"},
+  {"error": true, "id":65, "context":"4b44462074657374", "key":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "subkey_len":65, "subkey":null}
+]

test/fixtures/mprotect_noaccess.js

@@ -0,0 +1,6 @@
+/* eslint-disable */
+const sodium = require('../..')
+const buf = sodium.sodium_malloc(1)
+sodium.sodium_mprotect_noaccess(buf)
+buf[0]
+process.send('read')

test/fixtures/mprotect_readonly.js

@@ -0,0 +1,8 @@
+/* eslint-disable */
+const sodium = require('../..')
+const buf = sodium.sodium_malloc(1)
+sodium.sodium_mprotect_readonly(buf)
+buf[0]
+process.send('read')
+buf[0] = 1
+process.send('write')

test/fixtures/mprotect_readwrite.js

@@ -0,0 +1,11 @@
+/* eslint-disable */
+const sodium = require('../..')
+const buf = sodium.sodium_malloc(1)
+sodium.sodium_mprotect_noaccess(buf)
+sodium.sodium_mprotect_readwrite(buf)
+buf[0]
+process.send('read')
+buf[0] = 1
+process.send('write')
+sodium.sodium_mprotect_readonly(buf)
+process.send(buf[0] === 1 ? 'did_write' : 'did_not_write')

test/helpers.js

@@ -0,0 +1,103 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test('sodium_memcmp', function (t) {
+  const b1 = Buffer.from([0, 1, 2, 3])
+  const b2 = Buffer.from([3, 2, 1, 0])
+
+  t.exception.all(_ => sodium.sodium_memcmp(), 'no args')
+  t.exception.all(_ => sodium.sodium_memcmp(b1), 'arg mismatch')
+  t.exception.all(_ => sodium.sodium_memcmp(b1, b2.slice(1)), 'length mismatch')
+  t.ok(sodium.sodium_memcmp(Buffer.alloc(0), Buffer.alloc(0)))
+  t.ok(sodium.sodium_memcmp(Buffer.alloc(5), Buffer.alloc(5)))
+  t.ok(sodium.sodium_memcmp(b1, b1))
+  t.absent(sodium.sodium_memcmp(b2, b1))
+  t.absent(sodium.sodium_memcmp(b1, b2))
+})
+
+test.skip('sodium_compare', function (t) {
+  const one = Buffer.from([1])
+  const two = Buffer.from([2])
+  const three = Buffer.from([3])
+
+  t.is(sodium.sodium_compare(Buffer.alloc(0), Buffer.alloc(0)), 0)
+  t.is(sodium.sodium_compare(one, one), 0)
+  t.is(sodium.sodium_compare(two, two), 0)
+  t.is(sodium.sodium_compare(three, three), 0)
+
+  t.is(sodium.sodium_compare(one, two), -1)
+  t.is(sodium.sodium_compare(one, three), -1)
+  t.is(sodium.sodium_compare(two, one), 1)
+  t.is(sodium.sodium_compare(three, one), 1)
+
+  t.is(sodium.sodium_compare(two, three), -1)
+  t.is(sodium.sodium_compare(three, two), 1)
+})
+
+test.skip('sodium_add', function (t) {
+  const large = Buffer.alloc(32)
+  large[23] = 0b00000011
+  const largeLessOne = Buffer.alloc(32)
+  largeLessOne[23] = 0b00000001
+
+  const c = Buffer.from(large)
+
+  sodium.sodium_add(c, largeLessOne)
+  t.ok(large[23], 4)
+
+  const overflow = Buffer.alloc(56, 0xff)
+  const one = Buffer.alloc(56)
+  one[0] = 1
+  sodium.sodium_add(overflow, one)
+
+  t.ok(sodium.sodium_is_zero(overflow))
+})
+
+test.skip('sub', function (t) {
+  const large = Buffer.alloc(32)
+  large[23] = 0b00000011
+  const largeLessOne = Buffer.alloc(32)
+  largeLessOne[23] = 0b00000001
+
+  const c = Buffer.from(large)
+
+  sodium.sodium_sub(c, largeLessOne)
+  t.ok(large[23], 2)
+
+  const overflow = Buffer.alloc(56, 0x00)
+  const one = Buffer.alloc(56)
+  one[0] = 1
+  sodium.sodium_sub(overflow, one)
+
+  t.ok(sodium.sodium_memcmp(overflow, Buffer.alloc(56, 0xff)))
+})
+
+test('sodium_increment', function (t) {
+  const zero = Buffer.alloc(4)
+  sodium.sodium_increment(zero)
+
+  t.ok(zero[0], 1)
+
+  const overflow = Buffer.alloc(56, 0xff)
+  sodium.sodium_increment(overflow)
+
+  t.ok(sodium.sodium_is_zero(overflow))
+})
+
+test('sodium_is_zero', function (t) {
+  const buf = Buffer.from([0, 0, 0, 1])
+
+  t.exception.all(_ => sodium.sodium_is_zero(), 'no args')
+  t.exception.all(_ => sodium.sodium_is_zero(null), 'missing buf')
+
+  t.ok(sodium.sodium_is_zero(Buffer.alloc(0)), 'empty buffer')
+  t.ok(sodium.sodium_is_zero(buf.subarray(0, 0)), 'zero bytes')
+  t.ok(sodium.sodium_is_zero(buf.subarray(0, 1)), 'one byte')
+  t.ok(sodium.sodium_is_zero(buf.subarray(0, 2)), 'two bytes')
+  t.ok(sodium.sodium_is_zero(buf.subarray(0, 3)), '3 bytes')
+  t.absent(sodium.sodium_is_zero(buf), 'first non-zero byte')
+  t.ok(sodium.sodium_is_zero(buf.subarray(1, 2)), 'view')
+  t.ok(sodium.sodium_is_zero(buf.subarray(1, 2)), 'view')
+  t.absent(sodium.sodium_is_zero(buf.subarray(3)), 'view')
+})

test/memory.js

@@ -0,0 +1,126 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+const fork = require('child_process').fork
+
+test.skip('sodium_mprotect_noaccess', function (t) {
+  t.plan(1)
+  const p = fork(require.resolve('./fixtures/mprotect_noaccess'))
+
+  p.on('message', function () {
+    t.fail()
+  })
+  p.on('exit', function (code, signal) {
+    t.ok(p.signalCode !== null || p.exitCode > 0)
+  })
+})
+
+test.skip('sodium_mprotect_readonly', function (t) {
+  t.plan(2)
+  const p = fork(require.resolve('./fixtures/mprotect_readonly'))
+
+  p.on('message', function (msg) {
+    t.ok(msg === 'read')
+  })
+  p.on('exit', function (code, signal) {
+    t.ok(p.signalCode !== null || p.exitCode > 0)
+  })
+})
+
+test.skip('sodium_mprotect_readwrite', function (t) {
+  t.plan(4)
+  const p = fork(require.resolve('./fixtures/mprotect_readwrite'))
+
+  p.on('message', function (msg) {
+    switch (msg) {
+      case 'read': t.pass()
+        break
+      case 'write': t.pass()
+        break
+      case 'did_write': t.pass()
+        break
+      case 'did_not_write': t.fail()
+        break
+      default: t.fail()
+        break
+    }
+  })
+  p.on('exit', function (code, signal) {
+    t.ok(p.signalCode === null || p.exitCode === 0)
+  })
+})
+
+test('sodium_memzero', function (t) {
+  const buf = Buffer.alloc(10, 0xab)
+  const exp = Buffer.alloc(10, 0xab)
+  const zero = Buffer.alloc(10)
+
+  t.alike(buf, exp, 'buffers start out with same content')
+  t.unlike(buf, zero, 'buffer is not zero')
+
+  sodium.sodium_memzero(buf)
+  t.unlike(buf, exp, 'buffers are not longer the same')
+  t.alike(buf, zero, 'buffer is now zeroed')
+})
+
+test.skip('sodium_mlock / sodium_munlock', function (t) {
+  const buf = Buffer.alloc(10, 0x18)
+  const exp = Buffer.alloc(10, 0x18)
+
+  sodium.sodium_mlock(buf)
+  t.absent(buf.secure)
+  t.alike(buf, exp, 'mlock did not corrupt data')
+  sodium.sodium_munlock(buf)
+  t.absent(buf.secure)
+  t.alike(buf, Buffer.alloc(10), 'munlock did zero data')
+})
+
+test('sodium_malloc', function (t) {
+  const empty = sodium.sodium_malloc(0)
+  const small = sodium.sodium_malloc(1)
+  const large = sodium.sodium_malloc(1e8)
+
+  // sodium-javascript does not set secure prop
+
+  // t.ok(empty.secure)
+  // t.ok(small.secure)
+  // t.ok(large.secure)
+
+  t.ok(empty.length === 0, 'has correct size')
+  t.ok(small.length === 1, 'has correct size')
+  t.ok(large.length === 1e8, 'has correct size')
+
+  // const expected = Buffer.from([0xdb])
+  // expected.secure = true
+  // t.alike(small, expected, 'has canary content')
+
+  // test gc
+  for (let i = 0; i < 1e3; i++) {
+    if (sodium.sodium_malloc(256).length !== 256) {
+      t.fail('allocated incorrect size')
+    }
+  }
+  t.ok(empty.length === 0, 'retained correct size')
+  t.ok(small.length === 1, 'retained correct size')
+  t.ok(large.length === 1e8, 'retained correct size')
+})
+
+test('sodium_free', function (t) {
+  if (process.version.startsWith('v10')) {
+    t.comment('Skipping free test on v10')
+    return
+  }
+  const buf = sodium.sodium_malloc(1)
+  t.ok(buf.byteLength === 1)
+  sodium.sodium_free(buf)
+  t.ok(buf.byteLength === 0)
+})
+
+test.skip('sodium_malloc bounds', function (t) {
+  t.throws(function () {
+    sodium.sodium_malloc(-1)
+  }, 'too small')
+  t.throws(function () {
+    sodium.sodium_malloc(Number.MAX_SAFE_INTEGER)
+  }, 'too large')
+})

test/randombytes.js

@@ -0,0 +1,111 @@
+/* eslint-disable camelcase */
+const test = require('brittle')
+const sodium = require('..')
+
+test.skip('constants', function (t) {
+  t.alike(typeof sodium.randombytes_SEEDBYTES, 'number', 'randombytes_SEEDBYTES is number')
+})
+
+test.skip('randombytes_random', function (t) {
+  for (let i = 0; i < 1e6; i++) {
+    const n = sodium.randombytes_random()
+    if (n > 0xffffffff || n < 0) t.fail()
+  }
+})
+
+test.skip('randombytes_uniform', function (t) {
+  const p = 5381
+  for (let i = 0; i < 1e6; i++) {
+    const n = sodium.randombytes_uniform(5381)
+    if (n >= p || n < 0) t.fail()
+  }
+})
+
+test('randombytes_buf', function (t) {
+  let buf = null
+
+  buf = Buffer.alloc(10)
+  sodium.randombytes_buf(buf)
+  t.not(buf, Buffer.alloc(10), 'not blank')
+
+  buf = Buffer.alloc(1024)
+  sodium.randombytes_buf(buf)
+  t.not(buf, Buffer.alloc(1024), 'large not blank')
+})
+
+test.skip('randombytes_deterministic', function (t) {
+  const seed1 = Buffer.allocUnsafe(sodium.randombytes_SEEDBYTES)
+  const seed2 = Buffer.allocUnsafe(sodium.randombytes_SEEDBYTES)
+  const buf1 = Buffer.alloc(10)
+  const buf2 = Buffer.alloc(10)
+
+  for (let i = 0; i < 1e6; i++) {
+    sodium.randombytes_buf(seed1)
+    sodium.randombytes_buf(seed2)
+
+    sodium.randombytes_buf_deterministic(buf1, seed1)
+    sodium.randombytes_buf_deterministic(buf2, seed1)
+    if (!buf1.equals(buf2)) t.fail('should equal')
+
+    sodium.randombytes_buf_deterministic(buf1, seed1)
+    sodium.randombytes_buf_deterministic(buf2, seed2)
+    if (buf1.equals(buf2)) t.fail('should not equal')
+
+    sodium.randombytes_buf_deterministic(buf1, seed2)
+    sodium.randombytes_buf_deterministic(buf2, seed1)
+    if (buf1.equals(buf2)) t.fail('should not equal')
+
+    sodium.randombytes_buf_deterministic(buf1, seed2)
+    sodium.randombytes_buf_deterministic(buf2, seed2)
+    if (!buf1.equals(buf2)) t.fail('should equal')
+  }
+})
+
+test.skip('Various test cases', function (t) {
+  sodium.randombytes_buf(Buffer.alloc(0))
+  sodium.randombytes_buf(new Uint8Array(16))
+
+  t.throws(function () {
+    sodium.randombytes_buf([])
+  })
+
+  t.end()
+})
+
+test('Generates random bytes', function (t) {
+  const bufConst = Buffer.alloc(64)
+  sodium.randombytes_buf(bufConst)
+
+  const buf1 = Buffer.alloc(64)
+  for (let i = 0; i < 1e4; i++) {
+    sodium.randombytes_buf(buf1)
+    if (Buffer.compare(buf1, bufConst) === 0) {
+      t.fail('Constant buffer should not be equal')
+      t.end()
+      return
+    }
+  }
+
+  t.pass('Generated unique buffers')
+  t.end()
+})
+
+test('Exceed quota', function (t) {
+  const buf = Buffer.alloc(1 << 17)
+  sodium.randombytes_buf(buf)
+
+  const scores = new Array(256)
+  scores.fill(0)
+
+  for (const b of buf) {
+    scores[b]++
+  }
+
+  scores
+    .map(cnt => cnt / 256)
+    .forEach(cnt => {
+      if (cnt < 1 && cnt > 3) t.fail('Statistically unreasonable')
+    })
+
+  t.end()
+})