[kakwa_]

Implying you have the resources to do so correctly. Which was the issue with OpenSSL.

Completely unrelated but:

https://tls.mbed.org/

Another small footprint ssl/tls library, very readable code and a pleasure to work with.

[nailer]

I'm not sure that was the issue with OpenSSL. According to the libressl folks the OpenSSL team were spending massive amounts of time on FIPS support at the expense of known serious issues the OpenBSD team had raised.