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crypto: limit KangarooTwelveParams customization to 512 bytes · nodejs/node@6e30204 · GitHub

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crypto: limit KangarooTwelveParams customization to 512 bytes
To align with a future OpenSSL-imposed limit. Signed-off-by: Filip Skokan <panva.ip@gmail.com> PR-URL: #64557 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
1 parent 195f103 commit 6e30204

6 files changed

Lines changed: 38 additions & 9 deletions

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‎doc/api/webcrypto.md‎

Lines changed: 6 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -2250,11 +2250,16 @@ added: v25.9.0
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<!-- YAML
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added: v25.9.0
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changes:
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- version: REPLACEME
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pr-url: https://github.com/nodejs/node/pull/64557
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description: Limit customization to 512 bytes.
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-->
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* Type: {ArrayBuffer|TypedArray|DataView|Buffer|undefined}
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The optional customization string for KangarooTwelve.
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The optional customization string for KangarooTwelve. It must not exceed 512
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bytes.
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#### `kangarooTwelveParams.name`
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‎lib/internal/crypto/webidl.js‎

Lines changed: 2 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -296,10 +296,6 @@ function validateCShakeFunctionName(V) {
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'NotSupportedError');
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}
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299-
function validateCShakeCustomization(V) {
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validateMaxBufferLength(V, 'CShakeParams.customization', 512);
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}
302-
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converters.RsaPssParams = createDictionaryConverter(
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'RsaPssParams', [
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dictAlgorithm,
@@ -452,7 +448,7 @@ converters.CShakeParams = createDictionaryConverter(
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{
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key: 'customization',
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converter: converters.BufferSource,
455-
validator: validateCShakeCustomization,
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validator: (V, opts) => validateMaxBufferLength(V, 'CShakeParams.customization', 512),
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},
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],
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]);
@@ -774,6 +770,7 @@ converters.KangarooTwelveParams = createDictionaryConverter(
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{
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key: 'customization',
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converter: converters.BufferSource,
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validator: (V, opts) => validateMaxBufferLength(V, 'KangarooTwelveParams.customization', 512),
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},
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],
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]);

‎test/fixtures/webcrypto/supports-modern-algorithms.mjs‎

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Original file line numberDiff line numberDiff line change
@@ -48,11 +48,15 @@ export const vectors = {
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[false, 'KT128'],
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[true, { name: 'KT128', outputLength: 128 }],
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[true, { name: 'KT128', outputLength: 128, customization: Buffer.alloc(0) }],
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[true, { name: 'KT128', outputLength: 128, customization: Buffer.alloc(512) }],
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[false, { name: 'KT128', outputLength: 128, customization: Buffer.alloc(513) }],
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[false, { name: 'KT128', outputLength: 0 }],
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[false, { name: 'KT128', outputLength: 127 }],
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[false, 'KT256'],
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[true, { name: 'KT256', outputLength: 256 }],
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[true, { name: 'KT256', outputLength: 256, customization: Buffer.alloc(0) }],
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[true, { name: 'KT256', outputLength: 256, customization: Buffer.alloc(512) }],
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[false, { name: 'KT256', outputLength: 256, customization: Buffer.alloc(513) }],
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[false, { name: 'KT256', outputLength: 0 }],
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[false, { name: 'KT256', outputLength: 255 }],
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],

‎test/parallel/test-webcrypto-digest-turboshake-rfc.js‎

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Original file line numberDiff line numberDiff line change
@@ -326,6 +326,15 @@ async function checkDigest(name, vectors) {
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else
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algorithm.domainSeparation = rest[0];
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}
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if (isKT && algorithm.customization?.byteLength > 512) {
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await assert.rejects(subtle.digest(algorithm, input), {
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name: 'OperationError',
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message: 'KangarooTwelveParams.customization must be at most 512 bytes',
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});
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continue;
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}
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const result = await subtle.digest(algorithm, input);
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assert.deepStrictEqual(
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Buffer.from(result).toString('hex'),

‎test/parallel/test-webcrypto-digest-turboshake.js‎

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Original file line numberDiff line numberDiff line change
@@ -155,11 +155,22 @@ async function testDigest(size, alg) {
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// KT128 with customization string
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(async () => {
158-
const digest = await subtle.digest(
159-
{ name: 'KT128', outputLength: 256, customization: Buffer.from('test') },
160-
Buffer.from('hello'));
158+
const digest = await subtle.digest({
159+
name: 'KT128',
160+
outputLength: 256,
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customization: Buffer.alloc(512),
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}, Buffer.from('hello'));
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assert(digest instanceof ArrayBuffer);
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assert.strictEqual(digest.byteLength, 32);
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166+
await assert.rejects(subtle.digest({
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name: 'KT128',
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outputLength: 256,
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customization: Buffer.alloc(513),
170+
}, Buffer.from('hello')), {
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name: 'OperationError',
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message: 'KangarooTwelveParams.customization must be at most 512 bytes',
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});
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})().then(common.mustCall());
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// TurboSHAKE domain separation out of range

‎test/wpt/status/WebCryptoAPI.cjs‎

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@@ -91,6 +91,9 @@ if (process.features.openssl_is_boringssl) {
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['supports-modern.tentative.https.any.js', /ml-kem-512/i]);
9292
}
9393

94+
skipSubtests(
95+
['digest/kangarootwelve.tentative.https.any.js', /C=(?:\d{4,}|5(?:1[3-9]|[2-9]\d)|[6-9]\d{2}) bytes/]);
96+
9497
function assertNoOverlap(fileSkips, subtestSkips) {
9598
const subtestSkipFiles = new Set(Object.keys(subtestSkips));
9699
const overlap = Object.keys(fileSkips).filter((file) => subtestSkipFiles.has(file));

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