Donovan Baarda writes:
> On Tue, 2005-02-08 at 11:52 -0800, Gregory P. Smith wrote:
> > > The md5.h/md5c.c files allow "copy and use", but no modification of
> > > the files. There are some alternative implementations, i.e. in glibc,
> > > openssl, so a replacement should be sage. Any other requirements when
> > > considering a replacement?
> 
> One thing to consider is "degree of difficulty" :-)
> 
> > >   Matthias
> > 
> > I believe the "plan" for md5 and sha1 and such is to use the much
> > faster openssl versions "in the future" (based on a long thread
> > debating future interfaces to such things on python-dev last summer).
> > That'll sidestep any tedious license issue and give a better
> > implementation at the same time.  i don't believe anyone has taken the
> > time to make such a patch yet.
> 
> I wasn't around for that discussion. There are two viable replacements
> for the RSA implementation currently used; 
> 
> libmd <http://www.penguin.cz/~mhi/libmd/>
> openssl <http://www.openssl.org/>.
> 
> The libmd implementation is by Colin Plumb and has the licence; "This
> code is in the public domain; do with it what you wish." The API is
> identical to the RSA implementation and BSD world's libmd and hence is a
> drop in replacement. This implementation is faster than the RSA
> implementation.
> 
[...]
> 
> Currently md5c.c is included in the python sources. The libmd
> implementation has a drop in replacement for md5c.c. The openssl
> implementation is a complicated tangle of Makefile expanded template
> code that would be harder to include in the Python sources.

I would prefer that one as a short term solution. Patch at #1118602.


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