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:
| Microchip Masters Phoenix, AZ, USA Aug 10th to the 13th |
| NDIA- GV Sets Novi, MI, USA Aug 11th to the 13th |
| Live Webinar: Porting wolfIP Anywhere: Writing Device Drivers and Porting to a New OS Zoom Aug 18 | 9:00 PT |
| Live Webinar: PQC Update 2026: Standards, Performance, and Migration Reality (APAC-Friendly Time) Zoom Aug 20 | 15:00 JST/ Aug 19 | 23:00 PT (APAC-Friendly Time) |
| Live Webinar: DTLS 1.3: Securing UDP Connections Zoom Aug 20 | 9:00 PT |
| 2026 John Deere TechCon: Supplier Innovation Expo Des Moines, IA, USA Sep 15th |
| Air, Space & Cyber Conference & Expo Booth #MB 514 National Harbor, MD, USA Sep 14th to the 16th |
| Industrial Open Network Fair Osaka, Japan Sep 11th |
| MOSA Industry & Government Summit Booth #408 Washington D.C. Sep 22nd to the 24th |
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