Re: pgcrypto sha256/384/512 don't work on Redhat. Please help!

Patch applied to CVS HEAD and 8.1.X. Thanks.

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Marko Kreen wrote:
> On 5/9/06, Joe Kramer <cckramer(at)gmail(dot)com> wrote:
> > On 5/9/06, Marko Kreen <markokr(at)gmail(dot)com> wrote:
> > > The fact that Fedora pgcrypto is linked with OpenSSL that does not
> > > support SHA256 is not a bug, just a fact.
> >
> > It's not Fedora only, same problem with Gentoo/portage.
> > I think it's problem for all distros. You need recompile pgcrypto or install
> > openssl 0.9.8 which is considered as "unstable" by most distros.
> >
> > Maybe pgcrypto should use built-in algorithms until OpenSSL 0.9.8 is
> > mainstream/default install.
>
> To be honest, pgcrypto actually falls back on built-in code for AES,
> in case old OpenSSL that does not have AES. Thats because AES
> should be "always there", together with md5/sha1/blowfish.
>
> I do not consider SHA2 that important (yet?), so they don't
> get same treatment.
>
> > > OTOH, the nicest solution to your problem would be self-compiled
> > > pgcrypto, that would work with stock PostgreSQL. As the conflict
> > > happens with only (new) SHA2 functions, I can prepare a patch for
> > > symbol conflict, would that be satisfactory for you?
> >
> > Ideally, would be great if pgcrypto could fallback to built-in algorithm of
> > OpenSSL don't support it.
> > But since it's compile switch, completely seld-compiled pgcrypto would be
> > great.
>
> Attached is a patch that re-defines SHA2 symbols so that they would not
> conflict with OpenSSL.
>
> Now that I think about it, if your OpenSSL does not contain SHA2, then
> there should be no conflict. But ofcourse, if someone upgrades OpenSSL,
> server starts crashing. So I think its best to always apply this patch.
>
> I think I'll send the patch to 8.2 later, not sure if it's important
> enough for 8.1.
>
> --
> marko

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