- [x] AES CM 128 HMAC-SHA1 80 - [x] AES CM 128 HMAC-SHA1 32 - [ ] Null cipher support - [x] Replay protection - [ ] AES CM 192/256 support - [x] AES-GCM 128 support - [ ] AES-GCM 256 support - [ ] MKI support - [x] Rust backend.