@qudag/napi-core

Post-quantum cryptography and the QuDAG DAG for Node.js, as Rust N-API bindings over the qudag-crypto and qudag-dag crates.

• ML-KEM-768 key encapsulation (keygen / encapsulate / decapsulate)
• ML-DSA signatures (sign / verify / batch verify)
• HQC-128/192/256 key generation
• Quantum fingerprints (BLAKE3 + ML-DSA)
• QuantumDag: an in-memory DAG of messages

Platforms

Prebuilt binaries ship for Linux x64 and arm64 (glibc 2.34+: Ubuntu 22.04, Debian 12, RHEL 9 and newer). Other platforms are not published yet; build from source with npm run build in packages/napi-core.

Quickstart

npm install @qudag/napi-core

const { MlKem, MlDsaKeyPair } = require('@qudag/napi-core');

// ML-KEM-768: Bob publishes pk, Alice encapsulates, Bob decapsulates
const bob = MlKem.keygen();
const { ciphertext, sharedSecret } = MlKem.encapsulate(Buffer.from(bob.publicKey));
const bobSecret = MlKem.decapsulate(Buffer.from(bob.secretKey), Buffer.from(ciphertext));
console.log('KEM secrets match:', Buffer.from(bobSecret).equals(Buffer.from(sharedSecret)));

// ML-DSA signatures
const kp = MlDsaKeyPair.generate();
const msg = Buffer.from('hello, post-quantum world');
const sig = Buffer.from(kp.sign(msg));
console.log('signature valid:', kp.toPublicKey().verify(msg, sig));

Output:

KEM secrets match: true
signature valid: true

Upgrading from 0.1.0

0.1.0 was built from an unmerged pre-v2 branch and shipped only a linux-x64 binary; its seven platform packages were never published. Upgrade to 0.1.1 or later.

License

MIT OR Apache-2.0. Source: https://github.com/ruvnet/QuDAG/tree/main/packages/napi-core