FFI bindings to OpenSSL available

[Peter Simons]

Hi,

I've just made the first version of my OpenSSL bindings
available under:

  http://cryp.to/hopenssl/

Currently, the library contains only one module, Digest.hs,
which provides a convenient Haskell interface to the message
digest algorithms found in OpenSSL "crypto" library. (MD2,
MD5, SHA, SHA1, DSS, DSS1, MDC2, and RIPEMD160.)

A similar API to the symmetric cipher algorithms is expected
to follow shortly.

Patches, additions, and general feedback is -- as always --
highly welcome.

Peter