Hi,

Does FPC contain a cross-platform SHA1 algorithm implementation? I used Lazarus IDE's "Search in files" feature across the whole FPC 2.2.5 and saw some references to the word sha1, but nothing that looks like the actual implementation.

Regards,
- Graeme -

________________________________________________
fpGUI - a cross-platform Free Pascal GUI toolkit
http://opensoft.homeip.net/fpgui/

"Graeme Geldenhuys"
wrote in message

Hi Graeme,
Maybe this will help?

http://wiki.freepascal.org/DCPcrypt

cheers,
Paul

David Butler wrote

Have a look at Fundamentals 4's cHash unit: http://sourceforge.net/projects/fundementals/

Thanks, there are some interesting code in there... Cool. :)

In the end I did some more Google'ing and found a free implementation based on the FIPS 180-1 document. And it's all done in a single unit, which makes it nice and easy to use.

I wrote a few unit tests just to confirm that the implementation is correct - and it was. :-) The code is free of any license restrictions or platform specific code, so would FPC find a unit like this useful in the FCL? It makes no difference to me, but I thought I would ask.

Regards,
- Graeme -

_______________________________________________________ fpGUI - a cross-platform GUI toolkit using Free Pascal http://opensoft.homeip.net/fpgui/

Paul Nicholls wrote

http://wiki.freepascal.org/DCPcrypt

Ah thanks, I already use the Blowfish implementation from that package, but for some reason never thought to look in there for the SHA1 implementation. In the end I got a nice lightweight (single unit) implementation that also passes all unit tests based on various documentation.

Regards,
- Graeme -

_______________________________________________________ fpGUI - a cross-platform GUI toolkit using Free Pascal http://opensoft.homeip.net/fpgui/