nsha1hash.cpp

// LICENSE: (Please see the file COPYING for details)
//
// NUS - Nemesis Utilities System: A C++ application development framework 
// Copyright (C) 2006, 2008 Otavio Rodolfo Piske
//
//  This file is part of NUS
//
//  This library is free software; you can redistribute it and/or
//  modify it under the terms of the GNU Lesser General Public
//  License as published by the Free Software Foundation version 2.1
//  of the License.
//
//  This library is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//  Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with this library; if not, write to the Free Software
//  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
#include "nsha1hash.h"

NSha1Hash::NSha1Hash(void) {
      setHashBufferSize(48);
      init("sha1");
}


NSha1Hash::~NSha1Hash(void) {
      
}


NHash NSha1Hash::calculate(const NString &str) {
      NString value;
      
      update(str.toChar(), str.length());
      value = cleanup();
      
      return NHash("sha1", value);
}


NHash NSha1Hash::calculate(const NDataStream &data, nint32 size) {
      NString value;
      update(data.data(), size);
      
      value = cleanup();
      
      return NHash("sha1", value);
}


NHash NSha1Hash::calculateFile(const NString &filename) {
      NFile file(filename, NIODevice::ReadOnly);
      
      return calculateFile(&file);
      
}


NHash NSha1Hash::calculateFile(NFile *file) {
      NDataStream buffer;
      
      while (!file->atEnd()) {
            file->read(&buffer, 48);
            update(buffer.data(), buffer.size());
      
      }
      
      return NHash("sha1", cleanup());
}

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