QuickHash Library C++ Interface

CSHA1::Final

void Final( unsigned char* pDest );
 

Parameters

 pDest

    [out] Pointer to the memory buffer that will receive the message digest.

Remarks

Call this member function to retrieve the message digest from the CSHA1 object. The digest is retrieved in the memory buffer pointed by pDest. The size of the memory buffer pointed by pDest must be at least CSHA1::DIGESTSIZE bytes.

After the Final method is performed, the CSHA1 object is initialized for new calculations, as it would be constructed again.

Example

#include <fstream>
#include <QuickHash.h>

using namespace std;
using namespace QuickHash;

const unsigned int BUFF_SIZE = 1024;

int main()
{
    fstream file( "c:\\test.txt", ios::in | ios::binary );

    if( !file )
        return 1;

    unsigned char buff[ BUFF_SIZE ];
    unsigned char digest[ CSHA1::DIGESTSIZE ];

    //Instantiate a CSHA1 object

    CSHA1 hash;

    //Calculate the digest by calling Update for each block of the file

    while( !file.eof() )
    { 
        file.read( ( char* )buff, BUFF_SIZE );
        hash.Update( buff, file.gcount() );
    }

    //Do final changes and get the digest

    hash.Final( digest );

    //Use the digest
    //...

    file.close();
    return 0;
}

 

 

CSHA1 Overview   |   Class Members   |   Useful Links   |   HashCalc

 

See Also    CSHA1::FinalHex, CSHA1::Update


 

 

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