A File Checksum Shell Menu Extension DLL

#include "stdafx.h"

#include "profiler.h"

#include "files.h"      // FileSource
#include "channels.h"   // ChannelSwitch
#include "filters.h"    // HashFilter

#include "hex.h"        // HexEncoder/HexDecoder

#include "md5.h"        // MD5
#include "sha.h"        // SHA-1, SHA-224, SHA-256
#include "ripemd.h"     // RIPEMD-160

using namespace CryptoPP;

int main(int argc, char* argv[])
{
    // string s( 987 * 1024 , ' ');           // Create a blanks.
    string s = "Benjamin Franklin said, They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.";

    MD5  hashMD5;
    HashFilter filterMD5(hashMD5);

    SHA1 hashSHA1;
    HashFilter filterSHA1(hashSHA1);

    RIPEMD160 hashRIPEMD160;
    HashFilter filterRIPEMD160(hashRIPEMD160);

    SHA224 hashSHA224;
    HashFilter filterSHA224(hashSHA224);
    
    SHA256 hashSHA256;
    HashFilter filterSHA256(hashSHA256);    

    std::auto_ptr<ChannelSwitch> channelSwitch(new ChannelSwitch); 
    channelSwitch->AddDefaultRoute(filterMD5);
    channelSwitch->AddDefaultRoute(filterSHA1);
    channelSwitch->AddDefaultRoute(filterRIPEMD160);
    channelSwitch->AddDefaultRoute(filterSHA224);
    channelSwitch->AddDefaultRoute(filterSHA256);

    {
        CProfiler profiler;
        __int64 ptime;
        profiler.ProfileStart( );

        // Crypto++ 5.2.1 source file is 987 kB
        // FileSource( "c:\\cryptopp521.zip", true, channelSwitch.release());
        
        StringSource( s /* 987Kb */, true, channelSwitch.release());

        // StringSource( "abcdefghijklmnopqrstuvwxyz", true, channelSwitch.release());

        ptime = profiler.ProfileEnd();    
        _tcout << _T("Channel Pump Time: ");
        _tcout << profiler.SecsFromTicks( ptime );
        _tcout << _T(" seconds") << std::endl << endl;
    }

    std::cout << "String:" << std::endl << s << std::endl << std::endl;

    string digest;
    HexEncoder encoder( new StringSink( digest ), true /* uppercase */ ); 

    filterMD5.TransferTo( encoder );
    cout << filterMD5.AlgorithmName() << ": " << digest << endl;
    digest.erase();
    
    filterSHA1.TransferTo( encoder );
    cout << filterSHA1.AlgorithmName() << ": " << digest << endl;
    digest.erase();

    filterRIPEMD160.TransferTo( encoder );
    cout << filterRIPEMD160.AlgorithmName() << ": " << digest << endl;
    digest.erase();

    filterSHA224.TransferTo( encoder );
    cout << filterSHA224.AlgorithmName() << ": " << digest << endl;
    digest.erase();
    
    filterSHA256.TransferTo( encoder );
    cout << filterSHA256.AlgorithmName() << ": " << digest << endl;
    digest.erase();    

    return 0;
}