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libcanlock - a library for creating and verifying cancel locks.
Copyright stuff:
sha1.c was written by Steve Reid and placed in the public
domain.
md5.c was written by Colin Plumb and placed in the public
domain.
base64.c is copyrighted by the Internet Software Consortium.
The copyright notice allows for unlimited distribution if
credit is given. Read the file itself for details.
hmac*.c, canlock*.c, hmactest.c and canlocktest.c were written
by Fluffy, Ruler of All Usenet, and placed in the public
domain.
How to compile it:
If you are lucky, it will be enough to run the build script.
But you may not be that lucky.
As shipped, this library assumes a little-endian 32-bit system
(i386 family, that is). You may have to twiddle with
LITTLE_ENDIAN in sha1.h to make everything work right. If
you're not running on a 32-bit system, I don't know what if
anything you may have to do to get all the little bits in
order.
Once you've run the build script, check your work by running
hmactest. If the expected and actual digests are different,
your endian-ness or something else is wrong.
After hmactest is giving you the right results, run
canlocktest.
The canlocktest source code should give you a pretty good idea of how
the functions work. See the doc directory for relevant RFCs and stuff.
Meow.
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