Fast SHA1 algorithm with a small memory footprint. Written in C++ and very easy to use.

Example of use:

unsigned char hash²⁰;
char hexstring⁴¹;
sha1::calc("Teststring",10,hash); // 10 is the length of the string
sha1::toHexString(hash, hexstring);There are only two files in the sources that are needed to use the sha1 algorithm in your own code: sha1.h and sha1.cpp. The other files are there as unittesting and benchmarking.