lattice-crypto-rs

Lattice-based cryptography primitives: LWE encryption/decryption, Ring-LWE structures, Gaussian sampling, and lattice basis operations.

Features

• LWE: Learning With Errors encryption and decryption
• Ring-LWE: Ring-LWE key generation, encryption, and decryption
• Gaussian Sampling: Box-Muller and rejection sampling from discrete Gaussian
• Lattice Basis: Gram-Schmidt orthogonalization, LLL reduction, CVP approximation
• Utilities: Modular arithmetic, polynomial ring operations

Pure Rust, no external dependencies.

Usage

use lattice_crypto_rs::LWE;

let mut lwe = LWE::new(4, 97, 2.0, 42);
let secret = lwe.keygen();
let pk = lwe.public_keygen(&secret, 100);
let ct = lwe.encrypt(&pk, 1);
assert_eq!(lwe.decrypt(&secret, &ct), 1);

License: MIT OR Apache-2.0