MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker). The implementation is based on the documentation from http://mqtt.org/.

测试当前网络的 NAT 类型（STUN）

An FTP and FTPS client for .NET & .NET Standard, optimized for speed. Provides extensive FTP commands, File uploads/downloads, SSL/TLS connections, Automatic directory listing parsing, File hashing/checksums, File permissions/CHMOD, FTP proxies, FXP support, UTF-8 support, Async/await support, Powershell support and more. Written entirely in C#.

Ultra fast and low latency asynchronous socket server & client C# .NET Core library with support TCP, SSL, UDP, HTTP, HTTPS, WebSocket protocols and 10K connections problem solution

BouncyCastle.NET Cryptography Library (Mirror)

Professional ACME Client for Windows. Certificate Management UI, powered by Let's Encrypt and compatible with all ACME v2 CAs. Used by over 150,000 organisations. Remember to Star us! Download from certifytheweb.com

high performance dotnet core socket tcp communication components, support TLS, HTTP, HTTPS, WebSocket, RPC, Redis protocols, custom protocols and 1M connections problem solution

WatsonTcp is the easiest way to build TCP-based clients and servers in C#.

Certificate Manager in .NET Core for creating and using X509 certificates

ACME (RFC 8555) compatible implementation, connecting to Active Directory Certificate Services (ADCS)

TCP/UDP debugging tool.

Netly: Cross-Platform, Multi-Protocol C# Socket Library – Fast, Easy, and Versatile.⚡

Asynchronous TCP .NET library with reliable transmission and receipt of data, with an ssl implementation.

A basic .NET Core website boilerplate using PostgreSQL for storage, Adminer for db management, Let's Encrypt for SSL certificates and NGINX for routing.

This repository contains an easy-to-use and well-documented .NET (Framework and Core 3.1, .Net 5 and .Net 6) assembly for communicating with an XMPP server. It supports basic Instant Messaging and Presence funtionality as well as a variety of XMPP extensions.

CLI for obtaining, and renewing TLS certificates from Acme compliant authorities to Azure Key Vault

Cross-platform HttpClientHandler with TLS1.2 and Certificate Pinning

pure C# implementation of TLS 1.2/1.3

BeetleX http/websocket client support ssl

A command line tool and a library to generate TLS certificates for development purposes.