ox
Version:
51 lines • 1.89 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ivLength = void 0;
exports.decrypt = decrypt;
exports.encrypt = encrypt;
exports.getKey = getKey;
exports.randomSalt = randomSalt;
const Bytes = require("./Bytes.js");
const Hex = require("./Hex.js");
exports.ivLength = 16;
async function decrypt(value, key, options = {}) {
const { as = typeof value === 'string' ? 'Hex' : 'Bytes' } = options;
const encrypted = Bytes.from(value);
const iv = encrypted.slice(0, exports.ivLength);
const data = encrypted.slice(exports.ivLength);
const decrypted = await globalThis.crypto.subtle.decrypt({
name: 'AES-GCM',
iv,
}, key, Bytes.from(data));
const result = new Uint8Array(decrypted);
if (as === 'Bytes')
return result;
return Hex.from(result);
}
async function encrypt(value, key, options = {}) {
const { as = typeof value === 'string' ? 'Hex' : 'Bytes' } = options;
const iv = Bytes.random(exports.ivLength);
const encrypted = await globalThis.crypto.subtle.encrypt({
name: 'AES-GCM',
iv,
}, key, Bytes.from(value));
const result = Bytes.concat(iv, new Uint8Array(encrypted));
if (as === 'Bytes')
return result;
return Hex.from(result);
}
async function getKey(options) {
const { iterations = 900_000, password, salt = randomSalt(32) } = options;
const baseKey = await globalThis.crypto.subtle.importKey('raw', Bytes.fromString(password), { name: 'PBKDF2' }, false, ['deriveBits', 'deriveKey']);
const key = await globalThis.crypto.subtle.deriveKey({
name: 'PBKDF2',
salt,
iterations,
hash: 'SHA-256',
}, baseKey, { name: 'AES-GCM', length: 256 }, false, ['encrypt', 'decrypt']);
return key;
}
function randomSalt(size = 32) {
return Bytes.random(size);
}
//# sourceMappingURL=AesGcm.js.map