rsync and md4

[Derek Atkins]

> What is the difference between SHA and SHA-1? Is this algorithm subject
> to the same licensing as MD5?

The difference between SHA and SHA.1 is the "small technical change"
that was added last year.  I'm not sure what you mean by "licensing",
since there are no licensing issues for MD5 (unless you mean "export
issues", in which case SHA, SHA.1 and MD5 all fall into the same
category).

> Could someone point me to such a bootleg version for DOS, please?

Umm, good luck.

-derek