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fix(ext/crypto): exportKey() for HMAC (#11737)

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Fixes typings and innerKey processing (WPT doesn't test 
exportKey for HMAC so this wasn't caught earlier).
This commit is contained in:
Divy Srivastava 2021-08-17 14:59:32 +05:30 committed by GitHub
parent c67f6c13cd
commit af97535b7c
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
3 changed files with 8 additions and 3 deletions
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5
cli/tests/unit/webcrypto_test.ts
View file

@ -160,7 +160,7 @@ unitTest(async function testSignRSASSAKey() {
assert(signature);
});
unitTest(async function subtleCryptoHmacImport() {
unitTest(async function subtleCryptoHmacImportExport() {
// deno-fmt-ignore
const rawKey = new Uint8Array([
1, 2, 3, 4, 5, 6, 7, 8,
@ -189,4 +189,7 @@ unitTest(async function subtleCryptoHmacImport() {
new Uint8Array(actual),
expected,
);
const exportedKey = await crypto.subtle.exportKey("raw", key);
assertEquals(new Uint8Array(exportedKey), rawKey);
});

5
ext/crypto/00_crypto.js
View file

@ -577,16 +577,17 @@
const handle = key[_handle];
// 2.
const bits = WeakMapPrototypeGet(KEY_STORE, handle);
const innerKey = WeakMapPrototypeGet(KEY_STORE, handle);
switch (key[_algorithm].name) {
case "HMAC": {
if (bits == null) {
if (innerKey == null) {
throw new DOMException("Key is not available", "OperationError");
}
switch (format) {
// 3.
case "raw": {
const bits = innerKey.data;
for (let _i = 7 & (8 - bits.length % 8); _i > 0; _i--) {
bits.push(0);
}

1
ext/crypto/lib.deno_crypto.d.ts vendored
View file

@ -107,6 +107,7 @@ interface SubtleCrypto {
extractable: boolean,
keyUsages: KeyUsage[],
): Promise<CryptoKey>;
exportKey(format: "raw", key: CryptoKey): Promise<ArrayBuffer>;
sign(
algorithm: AlgorithmIdentifier | RsaPssParams | EcdsaParams,
key: CryptoKey,