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digitalmars.D.announce - SHA-1 and SHA-256 in D (for phobos2?)

I made up an implementation of SHA-1 and SHA-256 today, based on the
algorithm in the Wikipedia article. It passes a small unittest,
comparing its output to the linux sha utilities for the same input. I
don't know how good the speed is, but I tried to avoid unnecessary
copying, and speed can always be improved later anyway.

Here it is:


I think Phobos only offers MD5, so this might be a good addition. I'm
thinking the std.md5 module could be renamed to something like
std.hash and include the current MD5 code, the SHA code, and whatever
else we want down the line.

My code still has a few hacky casts in it - I'm trying to convert it
to take input ranges, but haven't quite mastered that yet. It works
fine with built in strings at least, and seems to be passing with
InputByChar(stdin), but only because of a cast.

Also, I plan to offer an API similar to what std.md5 has, instead of
just the single standalone functions I have now.

I don't know when I'll have the time to finish it though, but here's
the code for anyone who might find it useful.
Nov 26 2009