crypto: normalize RsaHashedKeyParams publicExponent

Fixes: #59535 PR-URL: #59538Fixes: #59534 Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: Yagiz Nizipli <[email protected]> Reviewed-By: Rafael Gonzaga <[email protected]>

Author: panva

lib/internal/crypto/util.js

@@ -397,7 +397,9 @@ const kSupportedAlgorithms = createSupportedAlgorithms(kAlgorithmDefinitions);
 
 constsimpleAlgorithmDictionaries={
 AeadParams: {iv: 'BufferSource',additionalData: 'BufferSource'},
-RsaHashedKeyGenParams: {hash: 'HashAlgorithmIdentifier'},
+// publicExponent is not strictly a BufferSource but it is a Uint8Array that we normalize
+// this way
+RsaHashedKeyGenParams: {hash: 'HashAlgorithmIdentifier',publicExponent: 'BufferSource'},
 EcKeyGenParams: {},
 HmacKeyGenParams: {hash: 'HashAlgorithmIdentifier'},
 RsaPssParams: {},

test/parallel/test-webcrypto-keygen.js

@@ -311,14 +311,20 @@ if (hasOpenSSL(3, 5)){
 assert.deepStrictEqual(privateKey.usages,privateUsages);
 assert.strictEqual(publicKey.algorithm.name,name);
 assert.strictEqual(publicKey.algorithm.modulusLength,modulusLength);
-assert.deepStrictEqual(publicKey.algorithm.publicExponent,publicExponent);
+assert(publicKey.algorithm.publicExponentinstanceofUint8Array);
+assert.notStrictEqual(publicKey.algorithm.publicExponent,publicExponent);
+assert(!Buffer.isBuffer(publicKey.algorithm.publicExponent));
+assert.deepStrictEqual(publicKey.algorithm.publicExponent,newUint8Array(publicExponent));
 assert.strictEqual(
 KeyObject.from(publicKey).asymmetricKeyDetails.publicExponent,
 bigIntArrayToUnsignedBigInt(publicExponent));
 assert.strictEqual(publicKey.algorithm.hash.name,hash);
 assert.strictEqual(privateKey.algorithm.name,name);
 assert.strictEqual(privateKey.algorithm.modulusLength,modulusLength);
-assert.deepStrictEqual(privateKey.algorithm.publicExponent,publicExponent);
+assert(privateKey.algorithm.publicExponentinstanceofUint8Array);
+assert.notStrictEqual(privateKey.algorithm.publicExponent,publicExponent);
+assert(!Buffer.isBuffer(privateKey.algorithm.publicExponent));
+assert.deepStrictEqual(privateKey.algorithm.publicExponent,newUint8Array(publicExponent));
 assert.strictEqual(
 KeyObject.from(privateKey).asymmetricKeyDetails.publicExponent,
 bigIntArrayToUnsignedBigInt(publicExponent));