Cryptography
Applied
TLS, PGP, Signal, real systems.
- •220 XPTLS 1.3 HandshakeOne RTT, key shares, encrypted extensions, Finished.
- •230 XPCertificate ChainsX.509 trust paths, hostname matching, revocation.
- •250 XPSignal Double RatchetX3DH, symmetric chain, DH step, forward secrecy.
- •210 XPPGP & Web of TrustHybrid encryption, trust paths, why PGP lost.
- •240 XPNoise & HPKEPatterns, handshake tokens, hybrid public-key encryption.