I was just wondering if anyone could supply me the source code for a class or struct that allows you to implement long integers (say upwards of 20 digits). A link to an internet site would be fine also.
I was wondering because I have an encryption program that I would like to make more secure by using long integers. It currently uses 64 bit integers (__int64) but I would like it to be more secure than that.
Thank you very much.