Shyvana

Shyvana is a Rust implementation of the WireGuard® protocol. It aims to provide a lightweight and secure VPN tunnel implementation.

Note: This project is currently a work in progress and is not yet ready for production use.

Project Structure

• src/handshake.rs: Implements the Noise protocol handshake (Initiator and Responder).
• src/packet.rs: Defines the wire format for WireGuard packets.
• src/crypto.rs: Wrappers for cryptographic primitives (Blake2s, ChaCha20Poly1305, HMAC, etc.).
• src/cipher.rs: Handles packet encryption and decryption.
• src/tunnel.rs: Core tunnel state management.
• src/async_tunnel.rs: Async wrapper for the tunnel (planned).

Status

The project currently contains the basic data structures and cryptographic primitives required for the WireGuard protocol. The handshake logic is partially implemented, but the core packet processing loop and transport data encryption are incomplete.

TODO

• Cipher Implementation: Implement Encryptor::encrypt in src/cipher.rs.
• Tunnel Logic: Implement the Tunnel struct in src/tunnel.rs to handle packet processing, session management, and timers.
• Async Support: Implement AsyncTunnel in src/async_tunnel.rs.
• Cookie Reply: Add the CookieReply packet definition to src/packet.rs (Message Type 3) and implement handling logic in src/handshake.rs.
• Tests: Add unit and integration tests to verify protocol correctness.