⚙️End-to-End Encryption

End-to-end encryption ensures that only the communicating parties can access and read the message content. Any third party, including Alien's servers, cannot decrypt this information.

• Asymmetric Encryption (RSA): Uses RSA public/private key pairs for message encryption and decryption. The sender encrypts the message with the receiver's public key, and the receiver decrypts it with their private key.

• Symmetric Encryption (AES): To improve efficiency, message content is encrypted using AES symmetric encryption, with the key transmitted using RSA encryption.

// Example: End-to-End Encrypted Messages

import { encrypt, decrypt, generateKeyPair } from 'crypto';

const { publicKey, privateKey } = generateKeyPair();

// Encrypting Messages

function encryptMessage(message, recipientPublicKey) {

const encryptedMessage = encrypt(recipientPublicKey, Buffer.from(message));

return encryptedMessage.toString('base64');

}

// Decrypting Messages

function decryptMessage(encryptedMessage, recipientPrivateKey) {

const decryptedMessage = decrypt(recipientPrivateKey, Buffer.from(encryptedMessage, 'base64'));

return decryptedMessage.toString();

}