"Randar" is an exploit for Minecraft which uses LLL lattice reduction to crack the internal state of an incorrectly reused java.util.Random in the Minecraft server, then works backwards from that to locate other players currently loaded into the world.

Lattice algorithms using floating-point arithmetic

Breaking ECDSA (not so broken) with LLL

Lattice-based integer linear programming solver

Lattice reduction and other lattice tools in Julia

High-performance integer factorization suite implementing GNFS, MPQS, and QS algorithms with optimized lattice reduction, vectorization, GPU acceleration, and tensor-based linear algebra. Features automatic algorithm selection, NUMA-aware scheduling, and checkpoint/restore for computational number theory research and cryptanalytic analysis.

Algorithms to solve lattice problems in Julia

Implementations of Greedy-Global variants of LLL-style algorithms

PotBKZ: A new variants of BKZ-reduction. And its dual and self-dual variants, dual-PotBKZ and self-dual-BKZ

BKZ基底簡約法

L3 reduction algorithm implementation in C++

LLL-reduction and enumeration lattice algorithms for Risa/Asir language.

Python Lattice Library

An implementation of Merkle-Hellman Knapsack based public key crypto (along with a Lattice Reduction exploit)

A C++ library for lattice reduction and solving lattice problem