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 armed services – deployed in everything from tanks and missile systems to satellites and aircraft.

Providing secure communication for smart grid, connected home, automobiles, routers, applications, games, IP, mobile phones, the cloud, and more.

wolfSSL support for complete DO-178C DAL A certification offering DO-178 wolfCrypt including FIPS compliance as a commercial off-the-shelf (COTS) solution for avionics applications, wolfBoot secure boot for avionics and DTLS 1.3, enhancing security for diverse applications, ensuring data integrity, and confidentiality.

Howling Wolf

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 1.3, 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.

wolfCrypt FIPS is currently on the CMVP Modules in Process List for FIPS 140-3. We are diligently working with our testing labs to achieve validation with the new FIPS standard from the NIST. wolfSSL was the first software library on the FIPS 140-3 IUT list for embedded development reflecting our commitment to achieving the first FIPS 140-3 validated software library. For more information, see our FIPS FAQ.

Everything You Need to Know about FIPS 140-3

Embedded Security in Avionics

Talk to us at these upcoming events:

Embedded Open Source Summit (EOSS)
Booth #E26

Seattle, WA, USA
Apr 16th to the 18th

Live Webinar: wolfSSL 2024 Roadmap

April 17th | 10am PT
Aerospace Tech Week Europe
Booth #815

Munich, Germany
Apr 17th to the 18th

MOSA for Defense Summit

National Harbor, MD, USA
Apr 17th to the 18th

Booth #4042

San Diego, CA, USA
Apr 22nd to the 25th

MDEX Michigan Defense Expo

Booth #D16

Detroit, MI, USA
Apr 23rd to the 25th


Booth #14

Paris, France
Apr 24th to the 25th

AAAA 2024 Summit - Army Aviation Mission Solutions Summit

Booth #3621

Denver, CO, USA
Apr 24th to the 26th


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.


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 2 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


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