Hi, Soon,

"Soon Heng" wrote:

> We are using Keil compiler for 16-bit C167 infineon microcontroller and wishes to integrate DES encryption and DSA digital signature (i.e. SHA1, DES, and DSA modules).


As long as you don't need SSL/TLS and the x.509 things, you should be
able to rip out the pure algorithms from OpenSSL crypto lib to keep the
footprint small.

As an alternative, we have made some good experiences with the tomcrypt
project at http://libtom.org/.


Regards,
Markus

--
Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf. | Software Development GIS

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