New Announcement! wolfSSL now supports DTLSv1.3!

wolfSSL’s DTLS 1.3 implementation is not ready for commercial use, but it’s fully functional and ready for being beta-tested! As usual, you can find the code at our GitHub repo or you can download the beta version here.

Since its first version, DTLS aims to bring the same security guarantees as TLS, but without requiring a reliable and order-preserving underlying protocol. This means that it’s much more suitable for latency-sensitive applications that can suffer from the overhead of TCP or similar protocols. The specifications of DTLSv1.3 were published just last April (RFC 9147) and DTLSv1.3 brings all the improvements of TLS v1.3 to DTLS: faster and more secure handshake, 0-RTT resumption, modern crypto algorithms, better downgrade protection and so on. We are the first to release a working implementation. If you are working on DTLS, or if you just have questions, don’t hesitate to contact us at We’re more than happy to hear from you!

Want to talk to us face to face about DTLS 1.3 at Embedded World?  Come by Hall 4, Booth 4-135!