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Arbitrary precision arithmetic or RSA library available?

Topic last updated 16 Apr 2012, by Sheldon Cooper. 2 replies
Sheldon Cooper
08 Feb 2012

I'm looking for either a simple RSA library or a high performance general purpose arbitrary precision arithmetic library. Is there any available to mbed? Any suggestions on external projects I should be looking at that is suitable for the limited resources available on M3?

Adam Green
14 Feb 2012

You might want to take a look at this library:

Import libraryCyaSSL

CyaSSL is an SSL library for devices like mbed.

Last commit 05 Feb 2011 by Todd Ouska

I haven't tried it myself though.

Sheldon Cooper
16 Apr 2012

Thanks. It works pretty well. The only problem I have is that it takes 3-4 secs to decrypt an RSA message on LPC1768. :( I need to speed it up a bit.