"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.CipherAlgorithm = void 0;
exports.createCipheriv = createCipheriv;
exports.createDecipheriv = createDecipheriv;
var _cryptoJs = _interopRequireDefault(require("crypto-js"));
var hex = _interopRequireWildcard(require("../encoding/hex.cjs"));
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
const CipherAlgorithm = {
Aes128Ctr: "AES-128-CTR",
Aes128Cbc: "AES-128-CBC"
};
/**
* @param {string} algorithm
* @param {Uint8Array} key
* @param {Uint8Array} iv
* @param {Uint8Array} data
* @returns {Promise<Uint8Array>}
*/
exports.CipherAlgorithm = CipherAlgorithm;
function createCipheriv(algorithm, key, iv, data) {
let mode;
switch (algorithm.toUpperCase()) {
case CipherAlgorithm.Aes128Cbc:
mode = _cryptoJs.default.mode.CBC;
break;
case CipherAlgorithm.Aes128Ctr:
mode = _cryptoJs.default.mode.CTR;
break;
default:
throw new Error("(BUG) non-exhaustive switch statement");
}
const data_ = _cryptoJs.default.enc.Hex.parse(hex.encode(data));
const key_ = _cryptoJs.default.enc.Hex.parse(hex.encode(key.slice(0, 16)));
const cfg_ = {
iv: _cryptoJs.default.enc.Hex.parse(hex.encode(iv)),
mode
};
return Promise.resolve(hex.decode(_cryptoJs.default.AES.encrypt(data_, key_, cfg_).toString(_cryptoJs.default.format.Hex)));
}
/**
* @param {string} algorithm
* @param {Uint8Array} key
* @param {Uint8Array} iv
* @param {Uint8Array} data
* @returns {Promise<Uint8Array>}
*/
function createDecipheriv(algorithm, key, iv, data) {
let mode;
switch (algorithm) {
case CipherAlgorithm.Aes128Cbc:
mode = _cryptoJs.default.mode.CBC;
break;
case CipherAlgorithm.Aes128Ctr:
mode = _cryptoJs.default.mode.CTR;
break;
default:
throw new Error("(BUG) non-exhaustive switch statement");
}
const key_ = _cryptoJs.default.enc.Hex.parse(hex.encode(key.slice(0, 16)));
const iv_ = _cryptoJs.default.enc.Hex.parse(hex.encode(iv));
const params = _cryptoJs.default.lib.CipherParams.create({
ciphertext: _cryptoJs.default.enc.Hex.parse(hex.encode(data)),
iv: iv_,
key: key_,
algorithm: _cryptoJs.default.algo.AES,
blockSize: 4
});
return Promise.resolve(hex.decode(_cryptoJs.default.AES.decrypt(params, key_, {
iv: iv_,
mode
}).toString(_cryptoJs.default.enc.Hex)));
}