Current File : /home/vacivi36/vittasync.vacivitta.com.br/vittasync/node/test/parallel/test-crypto-authenticated.js
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// Flags: --no-warnings
'use strict';
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
const assert = require('assert');
const crypto = require('crypto');
const { inspect } = require('util');
const fixtures = require('../common/fixtures');
//
// Test authenticated encryption modes.
//
// !NEVER USE STATIC IVs IN REAL LIFE!
//
const TEST_CASES = require(fixtures.path('aead-vectors.js'));
const errMessages = {
auth: / auth/,
state: / state/,
FIPS: /not supported in FIPS mode/,
length: /Invalid initialization vector/,
authTagLength: /Invalid authentication tag length/
};
const ciphers = crypto.getCiphers();
for (const test of TEST_CASES) {
if (!ciphers.includes(test.algo)) {
common.printSkipMessage(`unsupported ${test.algo} test`);
continue;
}
if (common.hasFipsCrypto && test.iv.length < 24) {
common.printSkipMessage('IV len < 12 bytes unsupported in FIPS mode');
continue;
}
const isCCM = /^aes-(128|192|256)-ccm$/.test(test.algo);
const isOCB = /^aes-(128|192|256)-ocb$/.test(test.algo);
let options;
if (isCCM || isOCB)
options = { authTagLength: test.tag.length / 2 };
const inputEncoding = test.plainIsHex ? 'hex' : 'ascii';
let aadOptions;
if (isCCM) {
aadOptions = {
plaintextLength: Buffer.from(test.plain, inputEncoding).length
};
}
{
const encrypt = crypto.createCipheriv(test.algo,
Buffer.from(test.key, 'hex'),
Buffer.from(test.iv, 'hex'),
options);
if (test.aad)
encrypt.setAAD(Buffer.from(test.aad, 'hex'), aadOptions);
let hex = encrypt.update(test.plain, inputEncoding, 'hex');
hex += encrypt.final('hex');
const auth_tag = encrypt.getAuthTag();
// Only test basic encryption run if output is marked as tampered.
if (!test.tampered) {
assert.strictEqual(hex, test.ct);
assert.strictEqual(auth_tag.toString('hex'), test.tag);
}
}
{
if (isCCM && common.hasFipsCrypto) {
assert.throws(() => {
crypto.createDecipheriv(test.algo,
Buffer.from(test.key, 'hex'),
Buffer.from(test.iv, 'hex'),
options);
}, errMessages.FIPS);
} else {
const decrypt = crypto.createDecipheriv(test.algo,
Buffer.from(test.key, 'hex'),
Buffer.from(test.iv, 'hex'),
options);
decrypt.setAuthTag(Buffer.from(test.tag, 'hex'));
if (test.aad)
decrypt.setAAD(Buffer.from(test.aad, 'hex'), aadOptions);
const outputEncoding = test.plainIsHex ? 'hex' : 'ascii';
let msg = decrypt.update(test.ct, 'hex', outputEncoding);
if (!test.tampered) {
msg += decrypt.final(outputEncoding);
assert.strictEqual(msg, test.plain);
} else {
// Assert that final throws if input data could not be verified!
assert.throws(function() { decrypt.final('hex'); }, errMessages.auth);
}
}
}
{
// Trying to get tag before inputting all data:
const encrypt = crypto.createCipheriv(test.algo,
Buffer.from(test.key, 'hex'),
Buffer.from(test.iv, 'hex'),
options);
encrypt.update('blah', 'ascii');
assert.throws(function() { encrypt.getAuthTag(); }, errMessages.state);
}
{
// Trying to create cipher with incorrect IV length
assert.throws(function() {
crypto.createCipheriv(
test.algo,
Buffer.from(test.key, 'hex'),
Buffer.alloc(0)
);
}, errMessages.length);
}
}
// Non-authenticating mode:
{
const encrypt =
crypto.createCipheriv('aes-128-cbc',
'ipxp9a6i1Mb4USb4',
'6fKjEjR3Vl30EUYC');
encrypt.update('blah', 'ascii');
encrypt.final();
assert.throws(() => encrypt.getAuthTag(), errMessages.state);
assert.throws(() => encrypt.setAAD(Buffer.from('123', 'ascii')),
errMessages.state);
}
// GCM only supports specific authentication tag lengths, invalid lengths should
// throw.
{
for (const length of [0, 1, 2, 6, 9, 10, 11, 17]) {
assert.throws(() => {
const decrypt = crypto.createDecipheriv('aes-128-gcm',
'FxLKsqdmv0E9xrQh',
'qkuZpJWCewa6Szih');
decrypt.setAuthTag(Buffer.from('1'.repeat(length)));
}, {
name: 'TypeError',
message: /Invalid authentication tag length/
});
assert.throws(() => {
crypto.createCipheriv('aes-256-gcm',
'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8',
'qkuZpJWCewa6Szih',
{
authTagLength: length
});
}, {
name: 'TypeError',
message: /Invalid authentication tag length/
});
assert.throws(() => {
crypto.createDecipheriv('aes-256-gcm',
'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8',
'qkuZpJWCewa6Szih',
{
authTagLength: length
});
}, {
name: 'TypeError',
message: /Invalid authentication tag length/
});
}
}
// Test that GCM can produce shorter authentication tags than 16 bytes.
{
const fullTag = '1debb47b2c91ba2cea16fad021703070';
for (const [authTagLength, e] of [[undefined, 16], [12, 12], [4, 4]]) {
const cipher = crypto.createCipheriv('aes-256-gcm',
'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8',
'qkuZpJWCewa6Szih', {
authTagLength
});
cipher.setAAD(Buffer.from('abcd'));
cipher.update('01234567', 'hex');
cipher.final();
const tag = cipher.getAuthTag();
assert.strictEqual(tag.toString('hex'), fullTag.substr(0, 2 * e));
}
}
// Test that users can manually restrict the GCM tag length to a single value.
{
const decipher = crypto.createDecipheriv('aes-256-gcm',
'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8',
'qkuZpJWCewa6Szih', {
authTagLength: 8
});
assert.throws(() => {
// This tag would normally be allowed.
decipher.setAuthTag(Buffer.from('1'.repeat(12)));
}, {
name: 'TypeError',
message: /Invalid authentication tag length/
});
// The Decipher object should be left intact.
decipher.setAuthTag(Buffer.from('445352d3ff85cf94', 'hex'));
const text = Buffer.concat([
decipher.update('3a2a3647', 'hex'),
decipher.final(),
]);
assert.strictEqual(text.toString('utf8'), 'node');
}
// Test that create(De|C)ipher(iv)? throws if the mode is CCM and an invalid
// authentication tag length has been specified.
{
for (const authTagLength of [-1, true, false, NaN, 5.5]) {
assert.throws(() => {
crypto.createCipheriv('aes-256-ccm',
'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8',
'qkuZpJWCewa6S',
{
authTagLength
});
}, {
name: 'TypeError',
code: 'ERR_INVALID_ARG_VALUE',
message: "The property 'options.authTagLength' is invalid. " +
`Received ${inspect(authTagLength)}`
});
assert.throws(() => {
crypto.createDecipheriv('aes-256-ccm',
'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8',
'qkuZpJWCewa6S',
{
authTagLength
});
}, {
name: 'TypeError',
code: 'ERR_INVALID_ARG_VALUE',
message: "The property 'options.authTagLength' is invalid. " +
`Received ${inspect(authTagLength)}`
});
}
// The following values will not be caught by the JS layer and thus will not
// use the default error codes.
for (const authTagLength of [0, 1, 2, 3, 5, 7, 9, 11, 13, 15, 17, 18]) {
assert.throws(() => {
crypto.createCipheriv('aes-256-ccm',
'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8',
'qkuZpJWCewa6S',
{
authTagLength
});
}, errMessages.authTagLength);
if (!common.hasFipsCrypto) {
assert.throws(() => {
crypto.createDecipheriv('aes-256-ccm',
'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8',
'qkuZpJWCewa6S',
{
authTagLength
});
}, errMessages.authTagLength);
}
}
}
// Test that create(De|C)ipher(iv)? throws if the mode is CCM or OCB and no
// authentication tag has been specified.
{
for (const mode of ['ccm', 'ocb']) {
assert.throws(() => {
crypto.createCipheriv(`aes-256-${mode}`,
'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8',
'qkuZpJWCewa6S');
}, {
message: `authTagLength required for aes-256-${mode}`
});
// CCM decryption and create(De|C)ipher are unsupported in FIPS mode.
if (!common.hasFipsCrypto) {
assert.throws(() => {
crypto.createDecipheriv(`aes-256-${mode}`,
'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8',
'qkuZpJWCewa6S');
}, {
message: `authTagLength required for aes-256-${mode}`
});
}
}
}
// Test that setAAD throws if an invalid plaintext length has been specified.
{
const cipher = crypto.createCipheriv('aes-256-ccm',
'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8',
'qkuZpJWCewa6S',
{
authTagLength: 10
});
for (const plaintextLength of [-1, true, false, NaN, 5.5]) {
assert.throws(() => {
cipher.setAAD(Buffer.from('0123456789', 'hex'), { plaintextLength });
}, {
name: 'TypeError',
code: 'ERR_INVALID_ARG_VALUE',
message: "The property 'options.plaintextLength' is invalid. " +
`Received ${inspect(plaintextLength)}`
});
}
}
// Test that setAAD and update throw if the plaintext is too long.
{
for (const ivLength of [13, 12]) {
const maxMessageSize = (1 << (8 * (15 - ivLength))) - 1;
const key = 'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8';
const cipher = () => crypto.createCipheriv('aes-256-ccm', key,
'0'.repeat(ivLength),
{
authTagLength: 10
});
assert.throws(() => {
cipher().setAAD(Buffer.alloc(0), {
plaintextLength: maxMessageSize + 1
});
}, /Invalid message length$/);
const msg = Buffer.alloc(maxMessageSize + 1);
assert.throws(() => {
cipher().update(msg);
}, /Invalid message length/);
const c = cipher();
c.setAAD(Buffer.alloc(0), {
plaintextLength: maxMessageSize
});
c.update(msg.slice(1));
}
}
// Test that setAAD throws if the mode is CCM and the plaintext length has not
// been specified.
{
assert.throws(() => {
const cipher = crypto.createCipheriv('aes-256-ccm',
'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8',
'qkuZpJWCewa6S',
{
authTagLength: 10
});
cipher.setAAD(Buffer.from('0123456789', 'hex'));
}, /options\.plaintextLength required for CCM mode with AAD/);
if (!common.hasFipsCrypto) {
assert.throws(() => {
const cipher = crypto.createDecipheriv('aes-256-ccm',
'FxLKsqdmv0E9xrQhp0b1ZgI0K7JFZJM8',
'qkuZpJWCewa6S',
{
authTagLength: 10
});
cipher.setAAD(Buffer.from('0123456789', 'hex'));
}, /options\.plaintextLength required for CCM mode with AAD/);
}
}
// Test that final() throws in CCM mode when no authentication tag is provided.
{
if (!common.hasFipsCrypto) {
const key = Buffer.from('1ed2233fa2223ef5d7df08546049406c', 'hex');
const iv = Buffer.from('7305220bca40d4c90e1791e9', 'hex');
const ct = Buffer.from('8beba09d4d4d861f957d51c0794f4abf8030848e', 'hex');
const decrypt = crypto.createDecipheriv('aes-128-ccm', key, iv, {
authTagLength: 10
});
// Normally, we would do this:
// decrypt.setAuthTag(Buffer.from('0d9bcd142a94caf3d1dd', 'hex'));
assert.throws(() => {
decrypt.setAAD(Buffer.from('63616c76696e', 'hex'), {
plaintextLength: ct.length
});
decrypt.update(ct);
decrypt.final();
}, errMessages.state);
}
}
// Test that setAuthTag does not throw in GCM mode when called after setAAD.
{
const key = Buffer.from('1ed2233fa2223ef5d7df08546049406c', 'hex');
const iv = Buffer.from('579d9dfde9cd93d743da1ceaeebb86e4', 'hex');
const decrypt = crypto.createDecipheriv('aes-128-gcm', key, iv);
decrypt.setAAD(Buffer.from('0123456789', 'hex'));
decrypt.setAuthTag(Buffer.from('1bb9253e250b8069cde97151d7ef32d9', 'hex'));
assert.strictEqual(decrypt.update('807022', 'hex', 'hex'), 'abcdef');
assert.strictEqual(decrypt.final('hex'), '');
}
// Test that an IV length of 11 does not overflow max_message_size_.
{
const key = 'x'.repeat(16);
const iv = Buffer.from('112233445566778899aabb', 'hex');
const options = { authTagLength: 8 };
const encrypt = crypto.createCipheriv('aes-128-ccm', key, iv, options);
encrypt.update('boom'); // Should not throw 'Message exceeds maximum size'.
encrypt.final();
}
// Test that the authentication tag can be set at any point before calling
// final() in GCM or OCB mode.
{
const plain = Buffer.from('Hello world', 'utf8');
const key = Buffer.from('0123456789abcdef', 'utf8');
const iv = Buffer.from('0123456789ab', 'utf8');
for (const mode of ['gcm', 'ocb']) {
for (const authTagLength of mode === 'gcm' ? [undefined, 8] : [8]) {
const cipher = crypto.createCipheriv(`aes-128-${mode}`, key, iv, {
authTagLength
});
const ciphertext = Buffer.concat([cipher.update(plain), cipher.final()]);
const authTag = cipher.getAuthTag();
for (const authTagBeforeUpdate of [true, false]) {
const decipher = crypto.createDecipheriv(`aes-128-${mode}`, key, iv, {
authTagLength
});
if (authTagBeforeUpdate) {
decipher.setAuthTag(authTag);
}
const resultUpdate = decipher.update(ciphertext);
if (!authTagBeforeUpdate) {
decipher.setAuthTag(authTag);
}
const resultFinal = decipher.final();
const result = Buffer.concat([resultUpdate, resultFinal]);
assert(result.equals(plain));
}
}
}
}
// Test that setAuthTag can only be called once.
{
const plain = Buffer.from('Hello world', 'utf8');
const key = Buffer.from('0123456789abcdef', 'utf8');
const iv = Buffer.from('0123456789ab', 'utf8');
const opts = { authTagLength: 8 };
for (const mode of ['gcm', 'ccm', 'ocb']) {
const cipher = crypto.createCipheriv(`aes-128-${mode}`, key, iv, opts);
const ciphertext = Buffer.concat([cipher.update(plain), cipher.final()]);
const tag = cipher.getAuthTag();
const decipher = crypto.createDecipheriv(`aes-128-${mode}`, key, iv, opts);
decipher.setAuthTag(tag);
assert.throws(() => {
decipher.setAuthTag(tag);
}, errMessages.state);
// Decryption should still work.
const plaintext = Buffer.concat([
decipher.update(ciphertext),
decipher.final(),
]);
assert(plain.equals(plaintext));
}
}
// Test chacha20-poly1305 rejects invalid IV lengths of 13, 14, 15, and 16 (a
// length of 17 or greater was already rejected).
// - https://www.openssl.org/news/secadv/20190306.txt
{
// Valid extracted from TEST_CASES, check that it detects IV tampering.
const valid = {
algo: 'chacha20-poly1305',
key: '808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f',
iv: '070000004041424344454647',
plain: '4c616469657320616e642047656e746c656d656e206f662074686520636c6173' +
'73206f66202739393a204966204920636f756c64206f6666657220796f75206f' +
'6e6c79206f6e652074697020666f7220746865206675747572652c2073756e73' +
'637265656e20776f756c642062652069742e',
plainIsHex: true,
aad: '50515253c0c1c2c3c4c5c6c7',
ct: 'd31a8d34648e60db7b86afbc53ef7ec2a4aded51296e08fea9e2b5' +
'a736ee62d63dbea45e8ca9671282fafb69da92728b1a71de0a9e06' +
'0b2905d6a5b67ecd3b3692ddbd7f2d778b8c9803aee328091b58fa' +
'b324e4fad675945585808b4831d7bc3ff4def08e4b7a9de576d265' +
'86cec64b6116',
tag: '1ae10b594f09e26a7e902ecbd0600691',
tampered: false,
};
// Invalid IV lengths should be detected:
// - 12 and below are valid.
// - 13-16 are not detected as invalid by some OpenSSL versions.
check(13);
check(14);
check(15);
check(16);
// - 17 and above were always detected as invalid by OpenSSL.
check(17);
function check(ivLength) {
const prefix = ivLength - valid.iv.length / 2;
assert.throws(() => crypto.createCipheriv(
valid.algo,
Buffer.from(valid.key, 'hex'),
Buffer.from(H(prefix) + valid.iv, 'hex')
), errMessages.length, `iv length ${ivLength} was not rejected`);
function H(length) { return '00'.repeat(length); }
}
}
{
// CCM cipher without data should not crash, see https://github.com/nodejs/node/issues/38035.
const algo = 'aes-128-ccm';
const key = Buffer.alloc(16);
const iv = Buffer.alloc(12);
const opts = { authTagLength: 10 };
for (const cipher of [
crypto.createCipheriv(algo, key, iv, opts),
]) {
assert.throws(() => {
cipher.final();
}, common.hasOpenSSL3 ? {
code: 'ERR_OSSL_TAG_NOT_SET'
} : {
message: /Unsupported state/
});
}
}
{
const key = Buffer.alloc(32);
const iv = Buffer.alloc(12);
for (const authTagLength of [0, 17]) {
assert.throws(() => {
crypto.createCipheriv('chacha20-poly1305', key, iv, { authTagLength });
}, {
code: 'ERR_CRYPTO_INVALID_AUTH_TAG',
message: errMessages.authTagLength
});
}
}
// ChaCha20-Poly1305 should respect the authTagLength option and should not
// require the authentication tag before calls to update() during decryption.
{
const key = Buffer.alloc(32);
const iv = Buffer.alloc(12);
for (let authTagLength = 1; authTagLength <= 16; authTagLength++) {
const cipher =
crypto.createCipheriv('chacha20-poly1305', key, iv, { authTagLength });
const ciphertext = Buffer.concat([cipher.update('foo'), cipher.final()]);
const authTag = cipher.getAuthTag();
assert.strictEqual(authTag.length, authTagLength);
// The decipher operation should reject all authentication tags other than
// that of the expected length.
for (let other = 1; other <= 16; other++) {
const decipher = crypto.createDecipheriv('chacha20-poly1305', key, iv, {
authTagLength: other
});
// ChaCha20 is a stream cipher so we do not need to call final() to obtain
// the full plaintext.
const plaintext = decipher.update(ciphertext);
assert.strictEqual(plaintext.toString(), 'foo');
if (other === authTagLength) {
// The authentication tag length is as expected and the tag itself is
// correct, so this should work.
decipher.setAuthTag(authTag);
decipher.final();
} else {
// The authentication tag that we are going to pass to setAuthTag is
// either too short or too long. If other < authTagLength, the
// authentication tag is still correct, but it should still be rejected
// because its security assurance is lower than expected.
assert.throws(() => {
decipher.setAuthTag(authTag);
}, {
code: 'ERR_CRYPTO_INVALID_AUTH_TAG',
message: `Invalid authentication tag length: ${authTagLength}`
});
}
}
}
}
// ChaCha20-Poly1305 should default to an authTagLength of 16. When encrypting,
// this matches the behavior of GCM ciphers. When decrypting, however, it is
// stricter than GCM in that it only allows authentication tags that are exactly
// 16 bytes long, whereas, when no authTagLength was specified, GCM would accept
// shorter tags as long as their length was valid according to NIST SP 800-38D.
// For ChaCha20-Poly1305, we intentionally deviate from that because there are
// no recommended or approved authentication tag lengths below 16 bytes.
{
const rfcTestCases = TEST_CASES.filter(({ algo, tampered }) => {
return algo === 'chacha20-poly1305' && tampered === false;
});
assert.strictEqual(rfcTestCases.length, 1);
const [testCase] = rfcTestCases;
const key = Buffer.from(testCase.key, 'hex');
const iv = Buffer.from(testCase.iv, 'hex');
const aad = Buffer.from(testCase.aad, 'hex');
for (const opt of [
undefined,
{ authTagLength: undefined },
{ authTagLength: 16 },
]) {
const cipher = crypto.createCipheriv('chacha20-poly1305', key, iv, opt);
const ciphertext = Buffer.concat([
cipher.setAAD(aad).update(testCase.plain, 'hex'),
cipher.final(),
]);
const authTag = cipher.getAuthTag();
assert.strictEqual(ciphertext.toString('hex'), testCase.ct);
assert.strictEqual(authTag.toString('hex'), testCase.tag);
const decipher = crypto.createDecipheriv('chacha20-poly1305', key, iv, opt);
const plaintext = Buffer.concat([
decipher.setAAD(aad).update(ciphertext),
decipher.setAuthTag(authTag).final(),
]);
assert.strictEqual(plaintext.toString('hex'), testCase.plain);
}
}
// https://github.com/nodejs/node/issues/45874
{
const rfcTestCases = TEST_CASES.filter(({ algo, tampered }) => {
return algo === 'chacha20-poly1305' && tampered === false;
});
assert.strictEqual(rfcTestCases.length, 1);
const [testCase] = rfcTestCases;
const key = Buffer.from(testCase.key, 'hex');
const iv = Buffer.from(testCase.iv, 'hex');
const aad = Buffer.from(testCase.aad, 'hex');
const opt = { authTagLength: 16 };
const cipher = crypto.createCipheriv('chacha20-poly1305', key, iv, opt);
const ciphertext = Buffer.concat([
cipher.setAAD(aad).update(testCase.plain, 'hex'),
cipher.final(),
]);
const authTag = cipher.getAuthTag();
assert.strictEqual(ciphertext.toString('hex'), testCase.ct);
assert.strictEqual(authTag.toString('hex'), testCase.tag);
const decipher = crypto.createDecipheriv('chacha20-poly1305', key, iv, opt);
decipher.setAAD(aad).update(ciphertext);
assert.throws(() => {
decipher.final();
}, /Unsupported state or unable to authenticate data/);
}
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