A JavaScript implementation of the Kyber512 post-quantum cryptographic algorithm, compatible with both Node.js and browser environments.
- Compatible with Node.js and browser environments
- Implements Kyber512 key generation, encapsulation, and decapsulation
- Provides access to Kyber512 parameters
npm install kyber512-jsconst kyber512 = require("kyber512-js");
kyber512.then((kyber) => {
// Generate key pair
const { publicKey, privateKey } = kyber.generateKeys();
// Encapsulate
const { ciphertext, sharedSecret: aliceSharedSecret } =
kyber.encapsulate(publicKey);
// Decapsulate
const { sharedSecret: bobSharedSecret } = kyber.decapsulate(
ciphertext,
privateKey
);
// Verify shared secrets match
console.log(
aliceSharedSecret.toString("hex") === bobSharedSecret.toString("hex")
);
});To use Kyber512-js in a browser:
- Ensure
kyber.wasmis in your public directory. - Adjust the WASM fetch path in
./browser/index.js, by default it's set tonode_modules/kyber512-js/kyber.wasm:
async function fetchWasm() {
return await (await fetch("/path/to/your/kyber.wasm")).arrayBuffer();
}Replace /path/to/your/kyber.wasm with the actual path where you serve the WASM file. Note: Configure your server to serve WASM files with application/wasm MIME type.
import { createKyber } from "./node_modules/kyber512-js/dist/kyber.min.js";
createKyber().then((kyber) => {
// Generate key pair
const { publicKey, privateKey } = kyber.generateKeys();
// Encapsulate
const { ciphertext, sharedSecret: aliceSharedSecret } =
kyber.encapsulate(publicKey);
// Decapsulate
const { sharedSecret: bobSharedSecret } = kyber.decapsulate(
ciphertext,
privateKey
);
// Verify shared secrets match
console.log(
aliceSharedSecret.toString("hex") === bobSharedSecret.toString("hex")
);
});Generates a new Kyber512 key pair. Returns: { publicKey: Uint8Array, privateKey: Uint8Array }
Encapsulates a shared secret using the provided public key. Returns: { ciphertext: Uint8Array, sharedSecret: Uint8Array }
Decapsulates a shared secret using the provided ciphertext and private key. Returns: { sharedSecret: Uint8Array }
An object containing Kyber512 parameters:
console.log(kyber.KYBER_PARAMS);
// output:
{
CRYPTO_PUBLICKEYBYTES: 800,
CRYPTO_SECRETKEYBYTES: 1632,
CRYPTO_CIPHERTEXTBYTES: 768,
CRYPTO_BYTES: 32,
};To build browser minified bundle:
- Clone the repository
- Run npm install
- Run npm run build