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assert input lengths

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This commit is contained in:
Christophe Diederichs 2020-09-15 11:56:27 +02:00
parent a8bdb1d060
commit d39f181acd
1 changed files with 4 additions and 0 deletions
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4
crypto_auth.js
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@ -8,6 +8,7 @@ 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)
@ -18,6 +19,9 @@ function crypto_auth (out, input, k) {
}
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)