spKEX: An optimized lattice-based key exchange

  title={spKEX: An optimized lattice-based key exchange},
  author={Sauvik Bhattacharya and {\'O}scar Garc{\'i}a-Morch{\'o}n and Ronald Rietman and Ludo Tolhuizen},
  journal={IACR Cryptology ePrint Archive},
The advent of large-scale quantum computers has resulted in significant interest in quantum-safe cryptographic primitives. Lattice-based cryptography is one of the most attractive post-quantum cryptographic families due to its well-understood security, efficient operation and versatility. However, LWE-based schemes are still relatively bulky and slow. In this work, we present spKEX, a forward-secret, post-quantum, unauthenticated lattice-based key-exchange scheme that combines four techniques… CONTINUE READING