Welcome to the wolfSSL product documentation. Please use the following resources to help answer any questions you might have, or use it as a starting place for learning how you can implement and use our products.  If you have any questions that are unanswered here, please view our Frequently Asked Questions (FAQ)Contact Us, or post to our Support Forums.

Many of the sub-documents below are contained in the comprehensive wolfSSL Manual, available in both HTML and PDF formats.

If you would like more detailed information about RAM (stack/heap) usage, please contact us for the wolfSSL Resource Use document.

Need FIPS 140-2? wolfSSL has you covered with our wolfCrypt library.  wolfCrypt has been FIPS 140-2 Level 1 validated (Certificate #3389), and is on the NIST Modules in Process List for FIPS 140-3 Level 1.  Visit our FIPS FAQ for more information.


wolfSSL FAQ Some of the most common issues and questions that are received by our wolfSSL security experts, along with their responses.
FIPS 140-2 FAQ Frequently Asked Questions about the FIPS 140-2 validated version of wolfCrypt.
DO-178C DAL A Learn about DO-178C DAL A certification, and how wolfSSL offers support for complete certification
TLS 1.3 Usage and Information Learn about TLS 1.3 and how to use it with wolfSSL!
SSL/TLS Tutorial A step-by-step tutorial on adding SSL and TLS to a simple application using wolfSSL.
wolfSSL / wolfCrypt Benchmarks Existing library benchmarks, benchmark application usage
wolfSSL Quickstart Guide Quickstart to getting up and running with wolfSSL on a desktop system
wolfSSL Porting Guide Tips and guidance on porting wolfSSL to new platforms and environments.
Implementing Hardware Cryptographic Support Guide on how to add support for cryptographic offloading to hardware using wolfCrypt.
Best Practices for Embedded Devices Practices to keep in mind when using SSL/TLS in an embedded environment.
wolfSSL Tuning Guide Tips on optimizing wolfSSL for footprint size or performance

wolfSSL and wolfCrypt Libraries

wolfSSL Manual Building wolfSSL, Getting Started, API Reference, Features, etc.
wolfSSL Manual PDF wolfSSL Manual, PDF format.
wolfSSL API Reference API reference for the wolfSSL embedded SSL/TLS library
wolfCrypt API Reference API reference for the wolfCrypt encryption library
wolfSSL FAQ Some of the most common issues and questions that are received by our wolfSSL security experts, along with their responses.
wolfSSL Renesas Support Details on wolfSSL support for both the Renesas CS+ and e2studio development environments
wolfSSL Renesas TSIP Support Details on wolfSSL support Renesas TSIP driver.
wolfSSL Espressif Support wolfSSL provides support for use with the Espressif IoT Development Framework (ESP-IDF)
wolfSSL NXP Support wolfSSL has support for NXP.
wolfSSL STM32 Support wolfSSL has support for ST platforms and hardware crypto.
wolfSSL PIC32 Support wolfSSL has support for Microchip PIC32.
wolfSSL Texas Instruments Support wolfSSL has support for Texas Instruments and TI-RTOS.
wolfSSL for Keil MDK-ARM Getting started using wolfSSL with Keil MDK-ARM
wolfSSL with Visual Studio Getting started using wolfSSL in Visual Studio on Windows
wolfSSL with uTasker Getting started using wolfSSL for uTasker
wolfSSL Atmel ATECC508A/608A Using wolfSSL and wolfCrypt with Atmel ATECC508A/608A
Asynchronous with Intel QuickAssist wolfSSL / wolfCrypt async support with Intel QuickAssist
wolfSSL Hardware Cryptography Support List of Hardware Acceleration/Cryptography Supported by wolfSSL
wolfSSL Static Buffer Allocation Documentation and User Guide for wolfSSL's Static Buffer Allocation Option
wolfSSL Application Binary Compatibility List of a subset of wolfSSL ABI that will be compatible across all releases of wolfSSL

wolfSSH Library

wolfSSH Manual Building and using wolfSSH
wolfSSH Manual PDF wolfSSH Manual, PDF format.
Building wolfSSH on Windows Building the wolfSSH library on Windows devices using Visual Studio

wolfMQTT Library

wolfMQTT Manual wolfMQTT Client Library Manual
wolfMQTT Manual PDF wolfMQTT Manual, PDF format.

wolfTPM Library

wolfTPM Manual wolfTPM TPM 2.0 Library Manual
wolfTPM Manual PDF wolfTPM Manual, PDF format.

wolfBoot Secure Bootloader

wolfBoot Manual wolfBoot Secure Bootloader Manual
wolfBoot Manual PDF wolfBoot Manual, PDF format.

wolfSentry Embedded IDPS

wolfSentry Manual wolfSentry Embedded IDPS Manual
wolfSentry Manual PDF wolfSentry Manual, PDF format.

wolfEngine OpenSSL Engine

wolfEngine Manual wolfEngine Library Manual
wolfEngine Manual PDF wolfEngine Manual, PDF format.

wolfSSL JNI / JSSE Provider

wolfSSL Java JSSE Provider Manual wolfSSL Java JSSE Provider Manual
wolfSSL Java JSSE Provider PDF Manual wolfSSL JNI/JSSE Manual, PDF format.
Installing a JSSE Provider in Android How to install a Java JSSE Provider, and wolfJSSE, into Android OSP.
wolfSSL JNI Manual Building and using the wolfSSL JNI wrapper
JNI API Documentation Javadocs for wolfSSL JNI

wolfCrypt JNI / JCE Provider

wolfCrypt JNI/JCE Manual Using wolfCrypt JNI wrapper and wolfCrypt JCE Provider
wolfCrypt JNI/JCE Manual PDF wolfCrypt JNI/JCE Manual, PDF format.
Javadocs API Documentation Javadocs for wolfCrypt JNI/JCE

wolfCLU Command Line Utility

wolfCLU Manual wolfCLU Command Line Utility Manual
wolfCLU Manual PDF wolfCLU Manual, PDF format.

wolfSSL C# Wrapper

wolfSSL C# Manual Building and using the wolfSSL C# wrapper
C# API Documentation API docs for wolfSSL C# wrapper


Choosing the Correct Technology Choosing the correct wolfSSL technology for your needs
wolfSSL vs. OpenSSL Curious how wolfSSL and OpenSSL compare?
SSL Library Overview Purpose and overview of SSL as a library
MIT Kerberos: Java GSS-API Wrapper Java GSS-API interface to the MIT Kerberos library, created for use with Android NDK applications.
MIT Kerberos: Android NDK Example App Example Android NDK application using the above Java GSS-API interface to the MIT Kerberos libraries.
wolfSSL Getting Started for Yocto and OpenEmbedded Getting started guide for using wolfSSL products and examples in Yocto and OpenEmbedded Projects.
Guide to OpenEmbedded and Yocto Project Basic guide to writing a bitbake recipe for OpenEmbedded and Yocto Projects.


Algorithm and Protocol Reference RFC’s, algorithms, and protocols used in the wolfSSL embedded SSL products.
Media and Press Press kit, presentations, papers, videos and photos of wolfSSL products and events.
Case Studies wolfSSL Case Studies