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[v16.x backport] crypto: fix webcrypto generateKey() AES key length validation error #44835

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[v16.x backport] crypto: fix webcrypto generateKey() AES key length validation error #44835

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crypto: fix webcrypto generateKey() AES key length validation error 
PR-URL: #44170
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Backport-PR-URL: #44835
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@panva
panva committed Sep 30, 2022
commit 680718ccd711b2858aa2bebca51c3b805f7f56d4
12 changes: 5 additions & 7 deletions lib/internal/crypto/aes.js
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Original file line number Diff line number Diff line change
Expand Up @@ -60,11 +60,6 @@ const {
generateKey,
} = require('internal/crypto/keygen');

const {
validateInteger,
validateOneOf,
} = require('internal/validators');

const kMaxCounterLength = 128;
const kTagLengths = [32, 64, 96, 104, 112, 120, 128];

Expand Down Expand Up @@ -227,8 +222,11 @@ function aesCipher(mode, key, data, algorithm) {

async function aesGenerateKey(algorithm, extractable, keyUsages) {
const { name, length } = algorithm;
validateInteger(length, 'algorithm.length');
validateOneOf(length, 'algorithm.length', kAesKeyLengths);
if (!ArrayPrototypeIncludes(kAesKeyLengths, length)) {
throw lazyDOMException(
'AES key length must be 128, 192, or 256 bits',
'OperationError');
}

const checkUsages = ['wrapKey', 'unwrapKey'];
if (name !== 'AES-KW')
Expand Down
4 changes: 2 additions & 2 deletions test/parallel/test-webcrypto-keygen.js
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Expand Up @@ -512,14 +512,14 @@ const vectors = {
[1, 100, 257].forEach(async (length) => {
await assert.rejects(
subtle.generateKey({ name, length }, true, usages), {
code: 'ERR_INVALID_ARG_VALUE'
name: 'OperationError'
});
});

['', {}, [], false, null, undefined].forEach(async (length) => {
await assert.rejects(
subtle.generateKey({ name, length }, true, usages), {
code: 'ERR_INVALID_ARG_TYPE'
name: 'OperationError',
});
});
}
Expand Down