🛡️ Cybersecurity23 min
Post-Quantum Cryptography: Implementing Kyber and Dilithium in Practice
A
Muhammad Asim Chattha
Software Developer & Cybersecurity Researcher
#Post-Quantum#Cryptography#Kyber#Dilithium#NIST
With NIST's standardization of post-quantum cryptographic algorithms, it's time to start implementing quantum-resistant cryptography in production systems.
The NIST PQC Standards
- **CRYSTALS-Kyber** (ML-KEM): Lattice-based key encapsulation mechanism for key exchange
- **CRYSTALS-Dilithium** (ML-DSA): Lattice-based digital signature algorithm
- **SPHINCS+** (SLH-DSA): Stateless hash-based signature for long-term security
- **FALCON**: Compact lattice-based signatures for bandwidth-constrained applications
Implementation Guide
Using liboqs and the OpenQuantumSafe provider for OpenSSL, we'll implement a TLS 1.3 connection with hybrid key exchange (ECDH + Kyber), benchmark performance across different security levels, and discuss migration strategies from RSA/ECC.
Hybrid Approach
We advocate for hybrid schemes that combine classical and post-quantum algorithms, ensuring security against both classical and quantum adversaries during the transition period.