Chapter 14: Licensing
14.1 Open Source
wolfSSL (formerly CyaSSL), yaSSL, wolfCrypt, yaSSH and TaoCrypt software are free software downloads and may be modified to the needs of the user as long as the user adheres to version two of the GPL License. The GPLv2 license can be found on the gnu.org website (http://www.gnu.org/licenses/old-licenses/gpl-2.0.html).
wolfSSH software is a free software download and may be modified to the needs of the user as long as the user adheres to version three of the GPL license. The GPLv3 license can be found on the gnu.org website (https://www.gnu.org/licenses/gpl.html).
14.2 Commercial Licensing
Businesses and enterprises who wish to incorporate wolfSSL products into proprietary appliances or other commercial software products for re-distribution must license commercial versions. Commercial licenses for wolfSSL, yaSSL, and wolfCrypt are available for $5,000 USD per end product or SKU. Licenses are generally issued for one product and include unlimited royalty-free distribution. Custom licensing terms are also available.
Commercial licenses are also available for wolfMQTT and wolfSSH. Please contact [email protected] with inquiries.
14.3 Support Packages
Support packages for wolfSSL products are available on an annual basis directly from wolfSSL. With three different package options, you can compare them side-by-side and choose the package that best fits your specific needs. Please see our Support Packages page (https://www.wolfssl.com/download/support-packages/) for more details.