RIPEMD-160.h

#include <string>                                                                       //Äëÿ string
#include <iostream>                                                                     //Äëÿ cout
#include <sstream>                                                                      //Äëÿ ostringstream è ôóíêöèè hex
#include <fstream>                                                                      //Äëÿ ôàéëîâ

#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))                            //Áèòîâûé ñäâèã íà n áèò  

using namespace std;                                                                    //Äëÿ cout, hex è ôàéëîâ

class RIPEMD_160                                                                        //Êëàññ
{
                                                                         //Èñõîäíîå ñîîáùåíèå

    unsigned long long bitlen;                                                          //Èñõîäíàÿ äëèíà ñîîáùåíèÿ (äî øàãà 1) â áèòàõ

    unsigned int** X;                                                                   //Ìàññèâû áëîêîâ ïî 64 áàéòà(512 áèò)

    unsigned int blocks;                                                                //Êîëè÷åñòâî áëîêîâ äëÿ îáðàáîòêè

    unsigned int H0, H1, H2, H3, H4;                                                    //Ðåãèñòðû RIPEMD áóôåðà

    unsigned int A1, B1, C1, D1, E1, A2, B2, C2, D2, E2, T;                             //Ïåðåìåííûå äëÿ ñîõðàíåíèÿ çíà÷åíèé ðåãèñòðîâ âî âðåìÿ àëãîðèòìà

    unsigned int F(unsigned int j, unsigned int x, unsigned int y, unsigned int z);     //Âûáîð áèòîâîé ôóíêöèè â ñîîòâåòñâèè ñ íîìåðîì öèêëà
    unsigned int K1(unsigned int j);                                                    //Âûáîð êîíñòàíòû â ñîîòâåòñâèè ñ íîìåðîì öèêëà äëÿ ïåðâîãî ïîòîêà
    unsigned int K2(unsigned int j);                                                    //Âûáîð êîíñòàíòû â ñîîòâåòñâèè ñ íîìåðîì öèêëà äëÿ âòîðîãî ïîòîêà
    unsigned int inv(unsigned int value);                                               //Ñìåíà ïîðÿäêà áèò (endians)
    unsigned int bytes_to_uint(char* bytes);                                            //Ïðåîðàçîâàíèå 4õ áàéòîâ â unsigned int

    void extension();                                                                   //Øàã 1 - Ðàñøèðåíèå ñîîáùåíèÿ
    void adding_length();                                                               //Øàã 2 - Äîáàâëåíèå äëèíû ñîîáùåíèÿ                                     
    void initialize_ripemd();                                                           //Øàã 3 - Èíèöèàëèçàöèÿ RIPEMD áóôåðà
    void message_processing();                                                          //Øàã 4 - Îáðàáîòêà ñîîáùåíèÿ â áëîêàõ
    ostringstream result;                                                               //Øàã 5 - Ðåçóëüòàò â âèäå õýø-ñîîáùåíèÿ
public:
    bool read_file(string fileName);                                                     //×òåíèå èç ôàéëà
    void get_new_mess(string s); //äëÿ ýêñïåðèìåíòà
    bool write_file(char* fileName, string str);                                        //Çàïèñü â ôàéë

    string message;
    
    string ripemd_160();
    string random_string();
    string ripemd_160_exp(int flag);
    //Àëãîðèòì ïðåîáðàçîâàíèÿ
    
};