strongSwan

OpenSSL 3.5+ now natively supports all three NIST post-quantum algorithms (ML-KEM, ML-DSA, SLH-DSA), and a hands-on test shows that post-quantum certificates are dramatically larger than classical one…

RFC 8784 defines a Postquantum Preshared Key (PPK) method that mixes a static, out-of-band preshared key into the IKE key schedule to defeat 'harvest now, decrypt later' attacks without requiring new …