wolfSSL - Product Downloads


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Please Contact Us if you are downloading this as an evaluation and need evaluation support. For additional downloads, including yaSSL (C++), and our Java SSL Provider, see the More Downloads page.


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This form allows you to download the most recent stable open source (GPLv2) versions of both wolfSSL and wolfSSL JNI. If your project cannot tolerate the terms of the GPLv2, please contact us to learn more about our commercial license.

For users looking to download the wolfCrypt embedded crypto engine, this is included in the wolfSSL package below.


(SHA256: f3ab7bf27b65689ca71da1d2460090d018ea3a01dc8b720ae27051f18b8b026c)

Initial release of the wolfCrypt JNI wrapper and wolfCrypt JCE Provider.

Release Date: 07/10/2017


(SHA256: ac142c16b8999c05a4e5e7c5df48ae8fd1d6702ea64cd34723abb10789189aea)

Release 0.13.0 includes bug fixes, passes network callback return codes through TLS context, adds option to disable blocking timeouts and STDIN/fgets capture for examples, and uses new MQTT_CODE_STDIN_WAKE return for examples using STDIN.

Release Date: 05/12/2017


(SHA256: 6eb283a280eb0d5e334ce4c94aa04209e0748ce6ea669135341b23b120db1541)

Release 1.1.0 includes bug fixes, adds DH Group Exchange, provides function to set banner string, includes expanded unit tests, more detailed session stats. Global Request message support, and more.

Release Date: 06/16/2017


(SHA256: 1d06a136db340a2b6bb6e07cb6ab4cd153ba3183273666269b55ca3426fd240c)

Release 3.11.1 is a TLS 1.3 BETA release. This release is strictly a BETA release, and designed for testing and user feedback on TLS 1.3 support.

Release Date: 05/11/2017


(SHA256: 5bb196056ac0086efbf07ecea7d3e73b1c31722eb52a88b85879f920428a9a0f)

Release 3.12.0 includes a vulnerability fix, TLS 1.3 support, Intel assembly improvements and SGX Linux support, DTLS multicast, Xilinx port, SHA3 (Keccak), wolfSSL Python wrapper, updated MQX Classic and TI-RTOS ports, RSA-PSS sign/verify, memory tracking feature, and more!

Release Date: 08/04/2017


(SHA256: f4030c9a22394921134d91026a75d9cad5c741738a604c74b6972569be7d9b09)

wolfSSL JNI 1.3.0 includes bug fixes and new features including updated support to wolfSSL 3.7.0, finalizers for context and session classes, deprecation of SSLv3, PSK support, better error and exception handling, and more.

Release Date: 12/04/2015


The wolfSSL source code is subject to the U.S. Export Administration Regulations and other U.S. law, and may not be exported or re-exported to certain countries (currently Afghanistan, Cuba, Iran, Iraq, Libya, North Korea, Sudan and Syria) or to persons or entities prohibited from receiving U.S. exports (including Denied Parties, entities on the Bureau of Export Administration Entity List, and Specially Designated Nationals).

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