@reshuffle/monday-redis-service/dist/Cipher.js

Reshuffle service for mirroring Monday to Redis

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
exports.__esModule = true;
exports.Cipher = void 0;
var crypto_1 = __importDefault(require("crypto"));
// Symmetric text encryption
//
var Cipher = /** @class */ (function () {
    // Create a new cipher with the specified encryption key.
    //
    // @param key encryption key (32 bytes)
    //
    function Cipher(key) {
        if (typeof key === 'string' && Cipher.keyRegex.test(key)) {
            this.key = Buffer.from(key, 'hex');
        }
        else if (typeof key === 'object' &&
            key instanceof Buffer &&
            key.length === Cipher.KEY_LENGTH) {
            this.key = key;
        }
        else {
            throw new Error("Invalid encryption key: " + key);
        }
    }
    // Encrypt.
    //
    // @param text clear text string
    //
    // @return encrypted string
    //
    Cipher.prototype.encrypt = function (text) {
        var iv = crypto_1["default"].randomBytes(16);
        var cipher = crypto_1["default"].createCipheriv('aes256', this.key, iv);
        var ct = cipher.update(text, 'utf8', 'hex') + cipher.final('hex');
        return JSON.stringify({ iv: iv, ct: ct });
    };
    // Decrypt.
    //
    // @param encoded encrypted string produced by encrypt()
    //
    // @return clear text string
    //
    Cipher.prototype.decrypt = function (encoded) {
        var _a = JSON.parse(encoded), iv = _a.iv, ct = _a.ct;
        var ivb = Buffer.from(iv, 'hex');
        var decipher = crypto_1["default"].createDecipheriv('aes256', this.key, ivb);
        return decipher.update(ct, 'hex', 'utf8') + decipher.final('utf8');
    };
    Cipher.KEY_LENGTH = 32;
    Cipher.keyRegex = new RegExp("^[0-9a-fA-F]{" + Cipher.KEY_LENGTH * 2 + "}$");
    return Cipher;
}());
exports.Cipher = Cipher;
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