mirror of
https://github.com/nodejs/node.git
synced 2024-11-21 21:19:50 +01:00
4a54a80aa3
`String.prototype.substr` is deprecated, and using it will raise an error when using ESLint 9+. Co-authored-by: =?UTF-8?q?Micha=C3=ABl=20Zasso?= <targos@protonmail.com> PR-URL: https://github.com/nodejs/node/pull/53070 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Yagiz Nizipli <yagiz.nizipli@sentry.io> Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com> Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Tierney Cyren <hello@bnb.im> Reviewed-By: Tobias Nießen <tniessen@tnie.de>
704 lines
24 KiB
JavaScript
704 lines
24 KiB
JavaScript
// 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.slice(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/);
|
|
}
|