There's always "RSA in N lines of Really Ugly Perl" :-) RSA only takes a couple of operations - easy to write it yourself if you've got a bignum package, like the GMP Gnu Multiple Precision math package. The harder part, if you need to implement it also, is finding big primes, but you may find code for that also. Most or all of the international versions of PGP don't use RSAREF. If you can find a version of "PGP 2.3" or earlier, it predates the RSAREF code use, and is much smaller than modern PGP bloatware (largely through lack of a GUI.) Depending on the licenses those use, you may be able to snag their code. At 03:53 PM 04/12/2001 -0500, Roy M. Silvernail wrote:

D'yer mind a code question? :)

I'm looking at doing a security module and want to use RSA (but not PGP in general) for part of the protocol. I'd appreciate pointers to RSA implementations, preferably in C++ but C is ok. Free Source is a must. (I don't think RSAREF is freely reusable, is it?)