Fuscen - UDP-over-SCTP Tunnel

Encrypted tunneling with zero-copy, nonblocking algo, async I/O and crypto-acceleration

🚀 Features

• UDP over SCTP encrypted with AES-GCM
• Zero-copy optimization with Linux 4.14+
• Epoll/kqueue-based async I/O with fallback
• AES-NI acceleration with your CPU
• Batched packet processing as option
• Real-time traffic statistics
• Nonblocking algoritm

🛠️ Stack

• Language: Rust w/ minimal unsafe
• Networking: SCTP on Socket2
• Main target platform: Linux/BSD with Kernel optimizations

⛏️ Work In Progress

• IO Uring
• SCTP Multistreaming
• SCTP Multihoming
• IPv6 Support

🎯 Future

• SCTP Multipath in the reference view
• FEC for super-lossy/error links
• <1 ms latency-overhead
• XDP/eBPF hooks

⚡ Benchmarks

1. 100 Mbps w/ IPerf3 + TCP Mode @ lossy link from DC K12 in Saint Petersburg to DC M9 in Moscow @ 1 CPU VM in Proxmox w/ Redhat IO Drivers and SR-IOV NIC on both ends