Browser-based SSH handshake demo — real X25519 ECDH key exchange authenticated by an Ed25519 host key, known_hosts Trust-On-First-Use, MITM detection on host-key change. First contact is a leap of faith
ssh cryptography mitm ed25519 ecdh x25519 trust-on-first-use tofu key-exchange known-hosts forward-secrecy crypto-lab trust-model host-key
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Updated
Jul 13, 2026 - TypeScript