servo/components/script_bindings/webidls/CryptoKey.webidl
Kingsley Yung f3d5617349
script: Check whether the generated crypto key has empty usages (#39328)
The WebCryptoAPI spec requires that when we generate crypto keys by the
generateKey method of SubtleCrypto interface we have to check whether
the usages is empty. If the usages is empty, throw a SyntaxError.

FYI, Step 9 of
https://w3c.github.io/webcrypto/#SubtleCrypto-method-generateKey

We have not yet implemented this logic, and this patch implements it.

Testing: Pass WPT tests that were expected to fail.

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Signed-off-by: Kingsley Yung <kingsley@kkoyung.dev>
2025-09-16 17:23:42 +00:00

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
// https://w3c.github.io/webcrypto/#cryptokey-interface
enum KeyType { "public", "private", "secret" };
enum KeyUsage { "encrypt", "decrypt", "sign", "verify", "deriveKey", "deriveBits", "wrapKey", "unwrapKey" };
[SecureContext, Exposed=(Window,Worker), /*Serializable,*/ Pref="dom_crypto_subtle_enabled"]
interface CryptoKey {
readonly attribute KeyType type;
readonly attribute boolean extractable;
readonly attribute object algorithm;
readonly attribute object usages;
};
// https://w3c.github.io/webcrypto/#dfn-CryptoKeyPair
dictionary CryptoKeyPair {
CryptoKey publicKey;
CryptoKey privateKey;
};