Cast bitcount to u_in64_t before bit shifting to prevent integer overflow
on 32bit platforms which cause incorrect results when adding a block
>=512M in size. sha1 patch from ante84 at gmail.com via openssh github,
sha2 with djm@, ok tedu@
Disables and removes dependency on OpenSSL. Many features don't
work and the set of crypto options is greatly restricted. This
will only work on system with native arc4random or /dev/urandom.
Considered highly experimental for now.
