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wolfSSL
Embedded TLS Library for Applications, Devices, and the Cloud

What is wolfSSL?

wolfSSL is a lightweight, portable, C-language-based SSL/TLS library designed for embedded, real-time, and standard environments. It supports industry standards up to TLS 1.3 and DTLS 1.3, and is up to 20 times smaller than OpenSSL. The library offers a simple API, an OpenSSL compatibility layer, OCSP and CRL support, and is backed by the robust wolfCrypt cryptography library.

wolfSSL products are used to secure over 5 billion applications and devices worldwide, including in smart grid, industrial automation, connected home, automotive, aviation, government, and military sectors. The wolfCrypt module has achieved FIPS 140-3 validation and DO-178C DAL-A certification for avionics.

Features

  • Lightweight and Portable: Up to 20 times smaller than OpenSSL, designed for embedded and RTOS environments.
  • TLS 1.3 and DTLS 1.3 Support: Supports the latest TLS and DTLS standards on both client and server sides.
  • OpenSSL Compatibility Layer: Provides an API compatible with OpenSSL for ease of migration.
  • FIPS 140-3 Validated: wolfCrypt module has FIPS 140-3 validation for cryptographic security.
  • DO-178C DAL-A Certified: wolfCrypt certified for avionics safety-critical systems.

Use Cases

  • Securing IoT devices and embedded systems
  • Enabling TLS communication in automotive and avionics
  • Protecting cloud services and enterprise applications
  • Implementing secure boot and firmware updates
  • Adding cryptographic capabilities to RTOS environments

FAQs

  • What is wolfSSL?
    wolfSSL is a lightweight, portable, C-language-based SSL/TLS library designed for embedded, RTOS, and standard environments. It supports TLS 1.3 and DTLS 1.3 and is up to 20 times smaller than OpenSSL.
  • Is wolfSSL FIPS 140-3 validated?
    Yes, the wolfCrypt cryptography module has received FIPS 140-3 validation under Certificate #4718 and #5041.
  • What platforms does wolfSSL support?
    wolfSSL supports standard, embedded, and RTOS environments, including desktop, enterprise, and cloud platforms.
  • Does wolfSSL include an OpenSSL compatibility layer?
    Yes, wolfSSL provides an OpenSSL compatibility layer to facilitate migration from OpenSSL.
  • How can I obtain a commercial license for wolfSSL?
    wolfSSL is dual licensed under GPLv3 and commercial licenses. For commercial licensing, you can contact wolfSSL Inc. through their website.

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