This version is up to 20% faster than 1.0.1, and allows compilation
without crypto_user information, which is currently failing for targets
still in the 4.9 kernel.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>

Use a fixed ENGINES_DIR location, instead of trying to read it from the
openssl Makefile.

It also fixes the zero-copy config option not being passed down to the
cmake options.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>

This is an alternate AF_ALG engine for openssl, based on the devcrypto
engine, but using the AF_ALG interface instead of /dev/crypto.

It is different than the AF_ALG engine that ships with OpenSSL:
  - it uses sync calls, instead of async
  - it suports more algorithms

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>