John G. Underhill

CEX. The CEX Cryptographic library in C++

CEX-NET. Twofish 512, Serpent 512, Rijndael 512, the HX Ciphers, Ring-LWE, NTRU, McEliece, GMSS, Rainbow, DTM-KEX

Blake2. The Blake2 Message digest in C++

QSC. The Quantum Safe Cryptographic library: Post-quantum C cryptographic library with TLS 1.3, X.509, ML-KEM, ML-DSA, and secure networking primitives.

QSTP. Quantum Secure Tunneling Protocol: a post-quantum secure tunneling protocol for certificate-authenticated encrypted sessions and VPN-class transport.