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@wolfSSL

wolfSSL

Open Source Cybersecurity

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Welcome to wolfSSL

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.

🚀 Our Products

Security Libraries

  • 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

Command Line Tools

  • wolfCLU - Command Line Utility for wolfSSL/wolfCrypt

Language Wrappers

Examples

Platform and Open Source Project Integrations

🏆 Certifications & Standards

  • 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

🤝 How to Contribute

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

Reporting Issues

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

Vulnerability Reports

Contributing Code

  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

🌟 Why Choose wolfSSL?

  • 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

📧 Contact Us


Securing the Internet of Things and Beyond
www.wolfssl.com

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  1. wolfsslwolfsslPublic

    The wolfSSL library is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3 and DTLS 1.3!

    C 2.7k 915

  2. wolfsshwolfsshPublic

    wolfSSH is a small, fast, portable SSH implementation, including support for SCP and SFTP.

    C 442 99

  3. wolfTPMwolfTPMPublic

    wolfTPM is a highly portable TPM 2.0 library, designed for embedded use.

    C 299 73

  4. wolfBootwolfBootPublic

    wolfBoot is a portable, OS-agnostic, secure bootloader for microcontrollers, supporting firmware authentication and firmware update mechanisms.

    C 455 135

  5. wolfssl-exampleswolfssl-examplesPublic

    Example applications using the wolfSSL lightweight SSL/TLS library

    C 276 191

  6. wolfHSMwolfHSMPublic

    HSM library that uses wolfCrypt as it's fallback crypto

    C 21 23

Repositories

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Showing 10 of 51 repositories
  • meta-wolfssl Public

    wolfSSL layer for OpenEmbedded and Yocto, containing product recipes, examples, and bbappend files.

    wolfSSL/meta-wolfssl’s past year of commit activity
    BitBake 33GPL-2.0 32 0 3 UpdatedDec 18, 2025
  • wolfProvider Public

    wolfCrypt and wolfCrypt FIPS provider for OpenSSL

    wolfSSL/wolfProvider’s past year of commit activity
    C 23GPL-3.0 28 2 12 UpdatedDec 18, 2025
  • wolfcrypt-jni Public

    wolfCrypt JCE provider and JNI wrapper

    wolfSSL/wolfcrypt-jni’s past year of commit activity
    Java 34GPL-2.0 17 0 0 UpdatedDec 18, 2025
  • wolfssl Public

    The wolfSSL library is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3 and DTLS 1.3!

    wolfSSL/wolfssl’s past year of commit activity
    C 2,686GPL-3.0 915 59(2 issues need help) 44 UpdatedDec 18, 2025
  • wolfssljni Public

    wolfSSL JSSE provider and JNI wrapper for SSL/TLS, supporting up to TLS 1.3!

    wolfSSL/wolfssljni’s past year of commit activity
    Java 67GPL-2.0 39 1 2 UpdatedDec 18, 2025
  • documentation Public

    wolfSSL product manuals and documentation.

    wolfSSL/documentation’s past year of commit activity
    C 16GPL-2.0 40 0 6 UpdatedDec 17, 2025
  • wolfHSM Public

    HSM library that uses wolfCrypt as it's fallback crypto

    wolfSSL/wolfHSM’s past year of commit activity
    C 21GPL-3.0 23 19 8 UpdatedDec 17, 2025
  • wolfssl-py Public

    Python wrapper for wolfSSL embedded SSL/TLS library.

    wolfSSL/wolfssl-py’s past year of commit activity
    Python 40 30 5 2 UpdatedDec 17, 2025
  • wolfssh Public

    wolfSSH is a small, fast, portable SSH implementation, including support for SCP and SFTP.

    wolfSSL/wolfssh’s past year of commit activity
    C 442 99 6 5 UpdatedDec 16, 2025
  • gnutls-wolfssl Public

    Port of wolfSSL into gnutls

    wolfSSL/gnutls-wolfssl’s past year of commit activity
    C0 4 0 0 UpdatedDec 16, 2025

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