Crate fynx_proto 

Protocol implementations for the Fynx security ecosystem.

This crate provides Rust implementations of various network security protocols:

• SSH (Secure Shell) - RFC 4251-4254 compliant implementation
• DTLS (Datagram Transport Layer Security) - Coming in Phase 2
• IPSec (Internet Protocol Security) - Coming in Phase 2

Features

• ssh (default) - SSH protocol support (client + server)
• dtls - DTLS protocol support
• ipsec - IPSec protocol support

Example

use fynx_proto::ssh::Packet;

// Create and serialize an SSH packet
let packet = Packet::new(b"SSH message payload".to_vec());
let wire_format = packet.to_bytes();

// Parse from wire format
let parsed = Packet::from_bytes(&wire_format).unwrap();
assert_eq!(parsed.payload(), b"SSH message payload");

Full client/server API coming in Stage 5 (see IMPLEMENTATION_PLAN.md)

Security

This crate follows OpenSSF Best Practices (Gold Level):

• All cryptographic operations use vetted libraries (ring, dalek)
• Constant-time operations for authentication
• Secure memory handling with zeroize
• Comprehensive testing including fuzz testing

References

• RFC 4251 - SSH Protocol Architecture
• RFC 4252 - SSH Authentication Protocol
• RFC 4253 - SSH Transport Layer Protocol
• RFC 4254 - SSH Connection Protocol

Modules

ipsec

IPSec protocol implementation (IKEv2 + ESP)

ssh

SSH (Secure Shell) protocol implementation.