wolfSSL

wolfSSL is a software company in the United States that makes embedded security software. Its best known product is the wolfSSL embedded TLS library, which secures communication for applications and devices.

The wolfSSL library is light, portable and written in the C language. It targets standard, embedded and real-time operating system settings, and it also runs on desktop, enterprise and cloud systems. It supports TLS 1.3 and DTLS 1.3. The company says it is up to 20 times smaller than OpenSSL. It also has a simple API, an OpenSSL compatibility layer and support for OCSP and CRL.

The company says its software is used in the smart grid, industrial automation, the connected home, the car industry, games, routers, cloud services, government, military and aviation. It states that over 5 billion applications and devices are secured with wolfSSL products.

For aviation, the company says its wolfCrypt cryptography library has been DO-178C DAL-A certified for avionics. It also offers DO-178 support. The cryptographic module validation programme has issued FIPS 140-3 certificates number 4718 and 5041 for the wolfCrypt module.

Other products include wolfSSH, wolfMQTT, wolfTPM, wolfBoot, wolfSentry, wolfHSM and the wolfIP TCP/IP stack. wolfIP is a small stack for embedded, real-time and safety critical systems. The company also offers curl and tinycurl, Java providers and post quantum cryptography. It says it supports the EU Cyber Resilience Act requirements.

Most products are dual licensed under the open source GPLv3 and standard commercial terms. The company sells support and maintenance and consulting services. It also publishes white papers, including one with Intel on using wolfBoot for secure boot on 11th Gen Intel Core processors.

Services

• Embedded TLS library
• Cryptography library
• FIPS 140-3 module
• DO-178 support
• Secure bootloader
• SSH and MQTT libraries
• TCP/IP stack
• Support and maintenance
• Consulting services
• Commercial licensing