Happy Bob's Libtls tutorial
https://github.com/bob-beck/libtls/blob/master/TUTORIAL.md [github.com]
2018-08-13 18:55
libtls is shipped as part of libressl with OpenBSD. It is designed to be simpler to use than other C based tls interfaces (especially native OpenSSL) to do “normal” things with TLS in programs.