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Remove extra API for Sodium-Native parity

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This API has some extra functions that aren't exported by Sodium-Native,
so we probably don't want to expose them in Sodium-JavaScript.

This removes all methods that aren't available in Sodium-Native, which
simplifies `crypto_auth.js` and makes it much shorter (with much higher
test coverage).
This commit is contained in:
Christian Bundy 2020-09-08 09:02:48 -07:00 committed by Christophe Diederichs
parent c0889e45e7
commit a8bdb1d060
1 changed files with 8 additions and 65 deletions
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73
crypto_auth.js
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@ -1,50 +1,13 @@
/* eslint-disable camelcase */
const { crypto_verify_32, crypto_verify_64 } = require('./crypto_verify')
const { sodium_memcmp } = require('./helpers')
const Sha256 = require('sha256-universal')
const { crypto_verify_32 } = require('./crypto_verify')
const Sha512 = require('sha512-universal')
const assert = require('nanoassert')
const crypto_auth_hmacsha256_BYTES = 32
const crypto_auth_hmacsha256_KEYBYTES = 32
const crypto_auth_hmacsha512_BYTES = 64
const crypto_auth_hmacsha512_KEYBYTES = 32
const crypto_auth_hmacsha512256_BYTES = 32
const crypto_auth_hmacsha512256_KEYBYTES = 32
const crypto_auth_BYTES = 32
const crypto_auth_KEYBYTES = 32
const crypto_auth_BYTES = crypto_auth_hmacsha512256_BYTES
const crypto_auth_KEYBYTES = crypto_auth_hmacsha512256_KEYBYTES
function crypto_auth_hmacsha256 (out, input, k) {
assert(out.byteLength === crypto_auth_hmacsha256_BYTES, "out should be 'crypto_auth_hmacsha256_BYTES' in length")
const hmac = Sha256.HMAC(k)
hmac.update(input)
return hmac.digest(out)
}
function crypto_auth_hmacsha256_verify (h, input, k) {
const correct = Sha256.HMAC(k).update(input).digest()
return crypto_verify_32(h, 0, correct, 0) && sodium_memcmp(correct, h)
}
function crypto_auth_hmacsha512 (out, input, k) {
assert(out.byteLength === crypto_auth_hmacsha512_BYTES, "out should be 'crypto_auth_hmacsha512_BYTES' in length")
const hmac = Sha512.HMAC(k)
hmac.update(input)
return hmac.digest(out)
}
function crypto_auth_hmacsha512_verify (h, input, k) {
const correct = Sha512.HMAC(k).update(input).digest()
return crypto_verify_64(h, 0, correct, 0) && sodium_memcmp(correct, h)
}
function crypto_auth_hmacsha512256 (out, input, k) {
assert(out.byteLength === crypto_auth_hmacsha512256_BYTES, "out should be 'crypto_auth_hmacsha512256_BYTES' in length")
function crypto_auth (out, input, k) {
assert(out.byteLength === crypto_auth_BYTES, "out should be 'crypto_auth_BYTES' in length")
const out0 = new Uint8Array(64)
const hmac = Sha512.HMAC(k)
@ -54,35 +17,15 @@ function crypto_auth_hmacsha512256 (out, input, k) {
out.set(out0.subarray(0, 32))
}
function crypto_auth_hmacsha512256_verify (h, input, k) {
function crypto_auth_verify (h, input, k) {
const correct = Sha512.HMAC(k).update(input).digest()
return crypto_verify_32(h, 0, correct, 0) && sodium_memcmp(correct.subarray(0, 32), h)
}
function crypto_auth (out, input, k) {
return crypto_auth_hmacsha512256(out, input, k)
}
function crypto_auth_verify (h, input, k) {
return crypto_auth_hmacsha512256_verify(h, input, k)
return crypto_verify_32(h, 0, correct, 0)
}
module.exports = {
crypto_auth_BYTES,
crypto_auth_KEYBYTES,
crypto_auth_hmacsha256_BYTES,
crypto_auth_hmacsha256_KEYBYTES,
crypto_auth_hmacsha512_BYTES,
crypto_auth_hmacsha512_KEYBYTES,
crypto_auth_hmacsha512256_BYTES,
crypto_auth_hmacsha512256_KEYBYTES,
crypto_auth,
crypto_auth_verify,
crypto_auth_hmacsha256,
crypto_auth_hmacsha256_verify,
crypto_auth_hmacsha512,
crypto_auth_hmacsha512256,
crypto_auth_hmacsha512256_verify,
crypto_auth_hmacsha512_verify
crypto_auth_verify
}