General purpose TLS and crypto library
A new lightweight, hybrid routing mesh protocol for packet radios
An open source, portable, easy to use, readable and flexible TLS library, and reference implementation of the PSA Cryptography API. Releases are on a varying cadence, typically around 3 - 6 months between releases.
FreeRDP is a free remote desktop protocol library and clients
Modern, secure, portable, multiprotocol bootloader and boot manager.
The Network UPS Tools repository. UPS management protocol Informational RFC 9271 published by IETF at https://www.rfc-editor.org/info/rfc9271 Please star NUT on GitHub, this helps with sponsorships!
HAProxy Load Balancer's development branch (mirror of git.haproxy.org)
Cross-platform multi-protocol VPN software. Pull requests are welcome. The stable version is available at https://github.com/SoftEtherVPN/SoftEtherVPN_Stable.
Protocol Buffers with small code size
The FRRouting Protocol Suite
An ultra-lightweight and blazing-fast Messaging Bus/MQTT Broker for Edge & SDV
Simple Open Source EtherCAT Master
Cross-platform, C implementation of the IETF QUIC protocol, exposed to C, C++, C# and Rust.
ιι/Tongsuo is a Modern Cryptographic Primitives and Protocols Library
Keepalived
XQUIC Library released by Alibaba is a cross-platform implementation of QUIC and HTTP/3 protocol.
LiteSpeed QUIC and HTTP/3 Library
ngtcp2 project is an effort to implement IETF QUIC protocol
Flipper Zero Protocol Pirate
Firmware, device protocol, and reference BYOS server for the FlightPortrait e-ink frame
GTK4 wireless security toolkit for Linux. 58 modules covering Wi-Fi, Bluetooth, RF and other wireless protocols as well as router-side and network MITM in one place. Built to tell you when something failed, not just when it worked. Some modules needs specific hardware.
Transmits AM radio on computers without radio transmitting hardware.
The Apache Guacamole proxy daemon (guacd), C API (libguac), and protocol support.
The client of the future
C/C++ server and network library, including coroutine,redis client,http/https/websocket,mqtt, mysql/postgresql/sqlite client with C/C++ for Linux, Android, iOS, MacOS, Windows, Harmony,etc..
FreeRADIUS - A multi-protocol policy server.
Secure client/server protocol for multiplayer games built on top of UDP
Official repository for libIEC61850, the open-source library for the IEC 61850 protocols
FlatBuffers Compiler and Library in C for C
A Linux kernel module that implements the Homa transport protocol.
For http protocol. nginx-upsync-module, sync upstreams from consul or etcd and so on, dynamiclly modify backend-servers attributes(weight, max_fails, down...), needn't reload nginx
An implementation of a small TCP/IP protocol stack for learning.
Nginx upstream module for the Redis 2.0 protocol
Minimal implementation of the QUIC protocol
OMNeT++ Discrete Event Simulator
Cubesat Space Protocol - A small network-layer delivery protocol designed for Cubesats
Packet acknowledgement system for UDP
SAE J1939 protocol free to use for embedded systems or PC with CAN-bus
BACnet Protocol Stack library provides a BACnet application layer, network layer and media access (MAC) layer communications services.
Core implementation of Nvidia's GameStream protocol
Open-source and real-time orchestrator for cyber-physical-systems, to easily design, test and deploy embedded applications and digital twins.
An extension to operate with the IMAP protocol, as well as the NNTP, POP3, and local mailbox access methods.
Applicative Protocol Multiplexer (e.g. share SSH and HTTPS on the same port)
An implementation of the TLS/SSL protocols
Library for SRTP (Secure Realtime Transport Protocol)