Lesson 2: A digest

The second lesson is about writing an engine with only a digest implementation

Build

Build as follows:

$ autoreconf -i
$ ./configure
$ make

A quick and easy test goes like this:

$ OPENSSL_ENGINES=.libs openssl engine -t -c emd5

$ echo whatever OPENSSL_ENGINES=.libs openssl openssl dgst -md5 -engine emd5