Qual a melhor função Hash e como usá la em c++ [RESOLVIDO]

phoemur
(usa Debian)

Enviado em 20/05/2018 - 15:07h

#include <algorithm>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <string>
#include <sstream>

#include <openssl/sha.h>

std::string sha512sum(const std::string& input)
{    
    unsigned char digest[SHA512_DIGEST_LENGTH];
    
    // compute hash
    SHA512(reinterpret_cast<unsigned const char*>(input.c_str()), 
           input.size(), 
           &digest[0]);
    
    
    // convert byte digest to hex representation
    std::stringstream ss;
    for(int i = 0; i < SHA512_DIGEST_LENGTH; i++) {
        ss << std::hex << std::setw(2) << std::setfill('0') << static_cast<int>(digest[i]);
    }
    
    return ss.str();
}

int main()
{
    using namespace std;
    
    string a {"hello world"};
    
    cout << a << "\n\nsha512 hash: " << sha512sum(a) << endl;
    
    return 0;
}