wolfSSL is the leading provider of lightweight, portable, embedded TLS and security solutions. Our products secure over 5 billion devices worldwide, from IoT and embedded systems to the cloud.

• wolfSSL - Embedded TLS/SSL library supporting up to TLS 1.3 and DTLS 1.3
• wolfCrypt - FIPS 140-3 validated cryptography engine
• wolfBoot - OS-agnostic secure bootloader for microcontrollers
• wolfSSH - Lightweight SSHv2 client and server library
• wolfMQTT - Lightweight client implementation of MQTT(S) protocol
• wolfTPM - Portable TPM 2.0 library
• wolfSentry - Embedded firewall and intrusion prevention system
• wolfHSM - Portable software HSM library
• wolfPKCS11 - PKCS#11 interface for wolfCrypt
• wolfIP - TCP/IP stack with no dynamic memory allocations

• wolfCLU - Command Line Utility for wolfSSL/wolfCrypt

• wolfSSL JNI/JSSE - Java Secure Socket Extension (JSSE) provider
• wolfCrypt JNI/JCE - Java Cryptography Extension (JCE) provider
• wolfSSL Python - Python wrapper for wolfSSL
• wolfCrypt Python - Python wrapper for wolfCrypt
• wolfCrypt rustls Provider - rustls wolfCrypt cryptography provider
• wolfSSL Go - Go wrapper for wolfSSL

• wolfSSL Examples - wolfSSL examples and sample applications
• wolfSSL STM32 Examples - STM32 specific examples for wolfSSL
• wolfBoot Examples - wolfBoot examples
• wolfSSH Examples - wolfSSH library examples
• wolfPKCS11 Examples - wolfPKCS11 library examples
• wolfHSM Examples - wolfHSM library examples

• wolfSSL OSP - Open Source project ports and patches
• wolfSSL Yocto/OpenEmbedded Layer - wolfSSL integration for Yocto and OpenEmbedded
• Arduino wolfSSL - wolfSSL for Arduino environments
• ESP-IDF wolfSSL - Espressif ESP32 integration

• FIPS 140-3 (Certificate #4718) andFIPS 140-2 (Certificates #3389, #2425)
• DO-178C DAL-A certified for avionics
• Support forTLS 1.3,DTLS 1.3, and post-quantum cryptography

We welcome contributions from the community! Here's how you can get involved:

• Email issue reports tosupport@wolfssl.com
• Create detailed bug reports with reproduction steps
• Suggest new features and improvements

• Email vulnerability reports tosupport@wolfssl.com, or tosecure@wolfssl.com for encrypted communication
• Do NOT open vulnerability reports via GitHub Issues, please use email

1. Fork the repository you want to contribute to
2. Create a feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add amazing feature')
4. Push to your branch (git push origin feature/amazing-feature)
5. Open a Pull Request
6. Emailsupport@wolfssl.com to get and sign a Contributor Agreement

• Lightweight: Optimized for embedded systems with minimal footprint
• Portable: Cross-platform support for 30+ operating systems
• Secure: Regular security audits and rapid vulnerability response
• Fast: Hardware acceleration and assembly optimizations
• Flexible: Modular design with extensive configuration options

• Email:facts@wolfssl.com
• Licensing:licensing@wolfssl.com
• Support:support@wolfssl.com
• Phone: +1 (425) 245-8247

Repositories