A simple SHA (Secure Hash Algorithm) hash function variations implementation for C++
Usage example:
#include "sha.hpp"
#include <iostream>
#include <string>
#include <vector>
using std::cout;
using std::endl;
using namespace neo::hash;
int main(int argc, char* argv[]) {
std::string msg = "The quick brown fox jumps over the lazy dog";
cout << "sha1: " << sha1::hash(msg.c_str(), msg.size()).to_str() << endl;
cout << "sha2-224: " << sha2::hash_224(msg.c_str(), msg.size()).to_str() << endl;
cout << "sha2-256: " << sha2::hash_256(msg.c_str(), msg.size()).to_str() << endl;
cout << "sha2-384: " << sha2::hash_384(msg.c_str(), msg.size()).to_str() << endl;
cout << "sha2-512: " << sha2::hash_512(msg.c_str(), msg.size()).to_str() << endl;
cout << "sha2-512/224: " << sha2::hash_512_224(msg.c_str(), msg.size()).to_str() << endl;
cout << "sha2-512/256: " << sha2::hash_512_256(msg.c_str(), msg.size()).to_str() << endl;
cout << "sha3-224: " << sha3::hash_224(msg.c_str(), msg.size()).to_str() << endl;
cout << "sha3-256: " << sha3::hash_256(msg.c_str(), msg.size()).to_str() << endl;
cout << "sha3-384: " << sha3::hash_384(msg.c_str(), msg.size()).to_str() << endl;
cout << "sha3-512: " << sha3::hash_512(msg.c_str(), msg.size()).to_str() << endl;
cout << "sha3-shake128: " << sha3::hash_shake_128<256>(msg.c_str(), msg.size()).to_str() << endl; // variable bit len output
cout << "sha3-shake256: " << sha3::hash_shake_256<512>(msg.c_str(), msg.size()).to_str() << endl; // variable bit len output
return 0;
}More info at: https://en.wikipedia.org/wiki/Secure_Hash_Algorithms