SHA1 now available in Tcl code

[George at Orwellian.Org]

Don Libes wrote:
>
> I made a pure-Tcl SHA1.  It's not ready for tcllib yet - I might work
> on its efficiency and documentation a bit more.  (The documentation is
> especially rough as I basically took the md5 documentation and did
> global search and replace :-)
>
> Anyway, it appears to work.  You can try it out at:
>
> http://expect.nist.gov/sha1pure
>
> Let me know if you encounter any problems.  I'd also be interested if
> anyone comes up with any good ways to speed it up.  sha1 is more
> complex than md5 and at the moment, the implementation is about 1/3
> the speed of md5pure.