Since version 2.4, OpenVPN can be built using mbedtls as it's crypto backend, instead of OpenSSL. See for more information on mbedtls.

Limitations compared to OpenSSL

Note that the mbedtls variant of OpenVPN does not support the same feature set as the OpenSSL variant. The most prominent differences are listed in the latest README.mbedtls.

Building the mbedtls-enabled OpenVPN

OpenVPN 2.4 has full mbedtls support. Get the sources from the download page, or get the most recent (potentially unstable) code from github.

To build using mbedtls:

./configure --with-crypto-library=mbedtls
make install
Last modified 6 years ago Last modified on 12/20/17 15:23:39