@safient/core/dist/crypto/utils/aes.js

JavaScript SDK to manage safes and interact with Safient protocol.

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports._aesDecryption = exports._aesEncryption = exports._generateCipherKey = void 0;
const crypto = require('crypto');
const _generateCipherKey = () => {
    try {
        const seed = crypto.randomBytes(32).toString();
        return new Promise((resolve) => {
            const cipherKey = crypto.createHash('sha256').update(seed).digest();
            resolve(cipherKey);
        });
    }
    catch (err) {
        console.error('Error while generating symmetric key:', err);
        return null;
    }
};
exports._generateCipherKey = _generateCipherKey;
const _aesEncryption = (data, cipherKey) => __awaiter(void 0, void 0, void 0, function* () {
    return new Promise((resolve) => {
        let iv = crypto.randomBytes(16);
        const cipher = crypto.createCipheriv('aes256', cipherKey, iv);
        const encryptedData = Buffer.concat([iv, cipher.update(data), cipher.final()]);
        resolve(encryptedData);
    });
});
exports._aesEncryption = _aesEncryption;
const _aesDecryption = (data, cipherKey) => __awaiter(void 0, void 0, void 0, function* () {
    let encryptedData = Buffer.from(data, 'hex');
    const iv = encryptedData.slice(0, 16);
    encryptedData = encryptedData.slice(16);
    return new Promise((resolve) => {
        const decipher = crypto.createDecipheriv('aes256', cipherKey, iv);
        const decryptedData = Buffer.concat([decipher.update(encryptedData), decipher.final()]);
        resolve(decryptedData);
    });
});
exports._aesDecryption = _aesDecryption;