LibWeb: Add the CryptoKey interface

Author: https://github.com/stelar7
Commit: a8ddf6c2a4
Pull-request: https://github.com/SerenityOS/serenity/pull/22346
Reviewed-by: https://github.com/ADKaster

Userland/Libraries/LibWeb/Crypto/CryptoKey.idl

@@ -0,0 +1,12 @@
+enum KeyType { "public", "private", "secret" };
+
+enum KeyUsage { "encrypt", "decrypt", "sign", "verify", "deriveKey", "deriveBits", "wrapKey", "unwrapKey" };
+
+// https://w3c.github.io/webcrypto/#cryptokey-interface
+[SecureContext,Exposed=(Window,Worker),Serializable]
+interface CryptoKey {
+  readonly attribute KeyType type;
+  readonly attribute boolean extractable;
+  readonly attribute object algorithm;
+  readonly attribute object usages;
+};