main repo

node_modules/jose/dist/browser/runtime/aeskw.js

@@ -0,0 +1,32 @@
+import bogusWebCrypto from './bogus.js';
+import crypto, { isCryptoKey } from './webcrypto.js';
+import { checkEncCryptoKey } from '../lib/crypto_key.js';
+import invalidKeyInput from '../lib/invalid_key_input.js';
+import { types } from './is_key_like.js';
+function checkKeySize(key, alg) {
+    if (key.algorithm.length !== parseInt(alg.slice(1, 4), 10)) {
+        throw new TypeError(`Invalid key size for alg: ${alg}`);
+    }
+}
+function getCryptoKey(key, alg, usage) {
+    if (isCryptoKey(key)) {
+        checkEncCryptoKey(key, alg, usage);
+        return key;
+    }
+    if (key instanceof Uint8Array) {
+        return crypto.subtle.importKey('raw', key, 'AES-KW', true, [usage]);
+    }
+    throw new TypeError(invalidKeyInput(key, ...types, 'Uint8Array'));
+}
+export const wrap = async (alg, key, cek) => {
+    const cryptoKey = await getCryptoKey(key, alg, 'wrapKey');
+    checkKeySize(cryptoKey, alg);
+    const cryptoKeyCek = await crypto.subtle.importKey('raw', cek, ...bogusWebCrypto);
+    return new Uint8Array(await crypto.subtle.wrapKey('raw', cryptoKeyCek, cryptoKey, 'AES-KW'));
+};
+export const unwrap = async (alg, key, encryptedKey) => {
+    const cryptoKey = await getCryptoKey(key, alg, 'unwrapKey');
+    checkKeySize(cryptoKey, alg);
+    const cryptoKeyCek = await crypto.subtle.unwrapKey('raw', encryptedKey, cryptoKey, 'AES-KW', ...bogusWebCrypto);
+    return new Uint8Array(await crypto.subtle.exportKey('raw', cryptoKeyCek));
+};