A family of hash functions. https://en.wikipedia.org/wiki/SHA-2 On Mon, Jul 22, 2013 at 6:10 AM, Patrick Welche <prlw1%cam.ac.uk@localhost> wrote: > I just noticed in /usr/share/examples/openssl/openssl.cnf: > > [ req ] > ... > default_md = sha2 > > and wonder: what is sha2? > > Cheers, > > Patrick -- .alt.