crypto/rust/lux-crypto-poly_mul/README.md

lux-crypto-poly_mul

Canonical Rust binding for Lux polynomial multiplication over Z_Q[X] / (X^n + 1) with Q = 998244353 (negacyclic convolution).

Wraps the C-ABI exposed by luxcpp/crypto/poly_mul.

Algorithm

• Polynomial multiplication in Z_Q[X] / (X^n + 1) (negacyclic ring)
• Built on top of lux-crypto-ntt
• Used as a primitive for lattice-based schemes (ML-DSA, ML-KEM, Pulsar)

Build

Set CRYPTO_DIR (install prefix) or CRYPTO_BUILD_DIR (cmake build dir) so the build script can find libpoly_mul_cpu.a.

git clone https://github.com/luxfi/crypto
cd crypto && cmake -S . -B build-cto && cmake --build build-cto
export CRYPTO_BUILD_DIR=$(pwd)/build-cto
cargo build -p lux-crypto-poly_mul

License

See LICENSE at the repository root.