73 lines
2.2 KiB
JavaScript
73 lines
2.2 KiB
JavaScript
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/* eslint-disable camelcase */
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const { crypto_verify_32, crypto_verify_64 } = require('./crypto_verify')
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const Sha256 = require('sha256-universal')
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const Sha512 = require('sha512-universal')
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const assert = require('nanoassert')
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const crypto_auth_hmacsha256_BYTES = 32
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const crypto_auth_hmacsha256_KEYBYTES = 32
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const crypto_auth_hmacsha512_BYTES = 64
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const crypto_auth_hmacsha512_KEYBYTES = 32
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const crypto_auth_hmacsha512256_BYTES = 32
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const crypto_auth_hmacsha512256_KEYBYTES = 32
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function crypto_auth_hmacsha256 (out, input, k) {
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assert(out.byteLength === crypto_auth_hmacsha256_BYTES, "out should be 'crypto_auth_hmacsha256_BYTES' in length")
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const hmac = Sha256.HMAC(key)
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hmac.update(input)
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return hmac.digest(out)
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}
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function crypto_auth_hmacsha256_verify (h, input, k) {
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const correct = Sha256.HMAC(k).update(input).digest()
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return crypto_verify_32(h, 0, correct, 0) | sodium_memcmp(correct, h, 32)
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}
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function crypto_auth_hmacsha512 (out, input, k) {
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assert(out.byteLength === crypto_auth_hmacsha512_BYTES, "out should be 'crypto_auth_hmacsha512_BYTES' in length")
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const hmac = Sha512.HMAC(key)
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hmac.update(input)
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return hmac.digest(out)
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}
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function crypto_auth_hmacsha512_verify (h, input, k) {
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const correct = Sha512.HMAC(k).update(input).digest()
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return crypto_verify_64(h, 0, correct, 0) | sodium_memcmp(correct, h, 64)
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}
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function crypto_auth_hmacsha512256 (out, input, k) {
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assert(out.byteLength === crypto_auth_hmacsha512_BYTES, "out should be 'crypto_auth_hmacsha512256_BYTES' in length")
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const out0 = Buffer.alloc(64)
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const hmac = Sha512.HMAC(key)
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hmac.update(input)
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hmac.digest(out)
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out.set(out0.subarray(0, 32))
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}
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function crypto_auth_hmacsha512256_verify (h, input, k) {
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const correct = Sha512.HMAC(k).update(input).digest()
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return crypto_verify_32(h, 0, correct, 0) | sodium_memcmp(correct, h, 32)
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}
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module.exports = {
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crypto_auth_hmacsha256_BYTES,
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crypto_auth_hmacsha256_KEYBYTES,
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crypto_auth_hmacsha512_BYTES,
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crypto_auth_hmacsha512_KEYBYTES,
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crypto_auth_hmacsha512256_BYTES,
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crypto_auth_hmacsha512256_KEYBYTES,
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crypto_auth_hmacsha256,
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crypto_auth_hmacsha256_verify,
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crypto_auth_hmacsha512,
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crypto_auth_hmacsha512_verify,
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crypto_auth_hmacsha512256,
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crypto_auth_hmacsha512256_verify
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}
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