cvs commit: src/lib/libmd Makefile sha256.3 sha256.h sha256c.c shadriver.c src/sbin/md5 Makefile md5.c

[Colin Percival]

Mark Murray wrote:
> Colin Percival writes:
>>hash functions don't get upgraded to newer versions or have new
>>features added.  (Ok, they do, but they get a new name and the old
>>versions are left unchanged.)
> 
> But they do have bugs fixed or are optimised.

Optimized?  Perhaps.  Bugs fixed?  Almost certainly not -- writing a
hash implementation which works for all the test vectors while failing
for some other data would be very difficult.  There's only one code
path through the compression function, and only a very small number
through the wrappers -- if you get something wrong, it's going to bite
you every time.

Colin Percival