XChaOS (Pure JS)

XChaOS is a fast, modern ARX stream cipher implemented in Wasm. It uses a 1024-bit internal state and produces 128-byte blocks with high performance and simplicity.

Features

• 256-bit key / 128-bit nonce
• Wasm compiled
• Secure ARX-based operations (Add-Rotate-XOR)
• ChaCha-inspired design with dynamic rotations and lane shuffles

Usage

import { encrypt, decrypt, keystream } from 'xchaos';

const key = Buffer.alloc(32, 1); // 256-bit
const nonce = Buffer.alloc(16, 2); // 128-bit
const message = Buffer.from("Secret");

const encrypted = encrypt(key, nonce, message);
const decrypted = decrypt(key, nonce, encrypted);

console.log(decrypted.toString()); // "Secret"

Installation

npm install xchaos