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This commit is contained in:
Christophe Diederichs 2020-06-17 01:29:42 +02:00
parent caa8390691
commit e423d00ebc
1 changed files with 13 additions and 13 deletions
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26
crypto_aead.js
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@ -12,18 +12,17 @@ const crypto_aead_chacha20poly1305_ietf_MESSAGEBYTES_MAX = Number.MAX_SAFE_INTEG
const _pad0 = Buffer.alloc(16)
function crypto_aead_chacha20poly1305_ietf_encrypt(c, m, ad, nsec, npub, k) {
var clen = 0
var ret
assert(m.length <= crypto_aead_chacha20poly1305_ietf_MESSAGEBYTES_MAX, 'message is too large')
ret = crypto_aead_chacha20poly1305_ietf_encrypt_detached(c, c.subarray(m.length), m, ad, nsec, npub, k);
ret = crypto_aead_chacha20poly1305_ietf_encrypt_detached(c, c.subarray(m.length), m, ad, nsec, npub, k)
if (ret == 0) {
return m.length + crypto_aead_chacha20poly1305_ietf_ABYTES;
if (ret === 0) {
return m.length + crypto_aead_chacha20poly1305_ietf_ABYTES
}
return ret;
return ret
}
function crypto_aead_chacha20poly1305_ietf_encrypt_detached(c, mac, m, ad, nsec, npub, k) {
@ -54,8 +53,7 @@ function crypto_aead_chacha20poly1305_ietf_encrypt_detached(c, mac, m, ad, nsec,
return crypto_aead_chacha20poly1305_ietf_ABYTES
}
function crypto_aead_chacha20poly1305_ietf_decrypt(m, nsec, c, ad, npub, k) {
var mlen = 0
function crypto_aead_chacha20poly1305_ietf_decrypt (m, nsec, c, ad, npub, k) {
var ret = -1
if (c.length >= crypto_aead_chacha20poly1305_ietf_ABYTES) {
@ -66,14 +64,14 @@ function crypto_aead_chacha20poly1305_ietf_decrypt(m, nsec, c, ad, npub, k) {
ad, npub, k)
}
if (ret == 0) {
return mlen = c.length - crypto_aead_chacha20poly1305_ietf_ABYTES
if (ret === 0) {
return c.length - crypto_aead_chacha20poly1305_ietf_ABYTES
}
return ret;
}
function crypto_aead_chacha20poly1305_ietf_decrypt_detached(m, nsec, c, mac, ad, npub, k) {
function crypto_aead_chacha20poly1305_ietf_decrypt_detached (m, nsec, c, mac, ad, npub, k) {
const block0 = new Uint8Array(64)
const slen = Buffer.alloc(8)
const computed_mac = Buffer.alloc(crypto_aead_chacha20poly1305_ietf_ABYTES)
@ -99,13 +97,13 @@ function crypto_aead_chacha20poly1305_ietf_decrypt_detached(m, nsec, c, mac, ad,
poly.finish(computed_mac, 0)
assert(computed_mac.length == 16)
assert(computed_mac.length === 16)
ret = crypto_verify_16(computed_mac, 0, mac, 0)
computed_mac.fill(0)
slen.fill(0)
if (ret != 0) {
if (ret !== 0) {
m.fill(0)
return -1
}
@ -130,3 +128,5 @@ module.exports = {
crypto_aead_chacha20poly1305_ietf_NPUBBYTES,
crypto_aead_chacha20poly1305_ietf_NSECBYTES
}
d_chacha20poly1305_ietf_NSECBYTES
}