initial commit

server/node_modules/jose/dist/browser/runtime/pbes2kw.js

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+import random from './random.js';
+import { p2s as concatSalt } from '../lib/buffer_utils.js';
+import { encode as base64url } from './base64url.js';
+import { wrap, unwrap } from './aeskw.js';
+import checkP2s from '../lib/check_p2s.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 getCryptoKey(key, alg) {
+    if (key instanceof Uint8Array) {
+        return crypto.subtle.importKey('raw', key, 'PBKDF2', false, ['deriveBits']);
+    }
+    if (isCryptoKey(key)) {
+        checkEncCryptoKey(key, alg, 'deriveBits', 'deriveKey');
+        return key;
+    }
+    throw new TypeError(invalidKeyInput(key, ...types, 'Uint8Array'));
+}
+async function deriveKey(p2s, alg, p2c, key) {
+    checkP2s(p2s);
+    const salt = concatSalt(alg, p2s);
+    const keylen = parseInt(alg.slice(13, 16), 10);
+    const subtleAlg = {
+        hash: `SHA-${alg.slice(8, 11)}`,
+        iterations: p2c,
+        name: 'PBKDF2',
+        salt,
+    };
+    const wrapAlg = {
+        length: keylen,
+        name: 'AES-KW',
+    };
+    const cryptoKey = await getCryptoKey(key, alg);
+    if (cryptoKey.usages.includes('deriveBits')) {
+        return new Uint8Array(await crypto.subtle.deriveBits(subtleAlg, cryptoKey, keylen));
+    }
+    if (cryptoKey.usages.includes('deriveKey')) {
+        return crypto.subtle.deriveKey(subtleAlg, cryptoKey, wrapAlg, false, ['wrapKey', 'unwrapKey']);
+    }
+    throw new TypeError('PBKDF2 key "usages" must include "deriveBits" or "deriveKey"');
+}
+export const encrypt = async (alg, key, cek, p2c = 2048, p2s = random(new Uint8Array(16))) => {
+    const derived = await deriveKey(p2s, alg, p2c, key);
+    const encryptedKey = await wrap(alg.slice(-6), derived, cek);
+    return { encryptedKey, p2c, p2s: base64url(p2s) };
+};
+export const decrypt = async (alg, key, encryptedKey, p2c, p2s) => {
+    const derived = await deriveKey(p2s, alg, p2c, key);
+    return unwrap(alg.slice(-6), derived, encryptedKey);
+};