const crypto = require('crypto');
const { Kyber } = require('kyber-crystals'); // Install via npm: npm install kyber-crystals
class EncryptionUtils {
static encryptData(data, key) {
const cipher = crypto.createCipher('aes-256-cbc', key);
let encrypted = cipher.update(JSON.stringify(data), 'utf8', 'hex');
encrypted += cipher.final('hex');
return encrypted;
}
static decryptData(encrypted, key) {
const decipher = crypto.createDecipher('aes-256-cbc', key);
let decrypted = decipher.update(encrypted, 'hex', 'utf8');
decrypted += decipher.final('utf8');
return JSON.parse(decrypted);
}
static quantumKeyExchange(publicKey) {
// Simplified Kyber key exchange
const kyber = new Kyber();
const { ciphertext, sharedSecret } = kyber.encapsulate(publicKey);
return { ciphertext, sharedSecret };
}
}
module.exports = EncryptionUtils;
