Embedded TLS and Cryptography Library
for Applications, Devices, IoT, and the Cloud
Does your device or application need FIPS or DO-178 based TLS or Cryptography?
Used by every branch of US arms services – used in everything from tanks and missile systems to satellites and aircraft.
Providing secure communication for IoT, smart grid, connected home, automobiles, routers, applications, games, IP, mobile phones, the cloud, and more.

Does Your Application or Device Need SSL/TLS?
The wolfSSL embedded TLS library is a lightweight, portable, C-language-based SSL/TLS library targeted at IoT, embedded, and RTOS environments primarily because of its size, speed, and feature set. It works seamlessly in desktop, enterprise, and cloud environments as well. wolfSSL supports industry standards up to the current TLS 1.3 and DTLS 1.2, is up to 20 times smaller than OpenSSL, offers a simple API, an OpenSSL compatibility layer, OCSP and CRL support, is backed by the robust wolfCrypt cryptography library, and much more.
The CMVP has issued FIPS 140-3 validated Certificate #4718 and FIPS 140-2 Certificates #3389 and #2425 for the wolfCrypt Module developed by wolfSSL Inc. wolfCrypt has been DO-178C DAL-A certified for avionics. For more information, see our FIPS FAQ.
Talk to us at these upcoming events:
Partner Webinar: Post-Quantum TLS 1.3 Over UART Zoom Apr 23rd |
RSAC Booth #N6449 San Francisco, CA, USA Apr 28th to May 1st |
2025 ISaCTN Technical Symposium Tucson, AZ, USA Apr 29th |
MOSA for Defense Summit Booth M9- Hall 3 National Harbor, MD, USA Apr 30th to May 1st |
curl://up 1015 Prague, Czechia May 3rd to the 4th |
SOF Week Booth #3804 Tampa, FL, USA May 5th to the 8th |
CSfC Booth #120 College Park, MD, USA May 6th |
OUR PRODUCTS
wolfSSL focuses on creating high quality, portable, embedded security software. Current products include the wolfSSL embedded TLS library, wolfCrypt embedded crypto engine, wolfMQTT, wolfSSH, and wolfSSL JNI wrapper. As strong believers in open source, the majority of wolfSSL’s products are dual licensed under both the GPLv2 as well as standard commercial licensing.
wolfSSL now has support for TLS 1.3! Try it out today by downloading wolfSSL today!
To learn more about wolfSSL and the wolfSSL embedded SSL/TLS library, we invite you to read our About Us page, or visit a respective Product Page.
WHERE ARE WE USED?
Are you curious about where wolfSSL products are used? wolfSSL is actively being used in a wide range of markets and products including the smart grid, IoT, industrial automation, connected home, M2M, auto industry, games, applications, databases, sensors, VoIP, routers, appliances, cloud services, and more.
Over 5 Billion applications and devices are secured with wolfSSL products.
To learn more about specific markets which are currently using wolfSSL products, please visit our Case Studies page.
Securing the connected world with wolfSSL seamless TPM 2.0 integration
Infineon