///////////////////////////////////////////////////////////////////////////////////////////////
//
// This File is Part of the CallButler Open Source PBX (http://www.codeplex.com/callbutler
//
// Copyright (c) 2005-2008, Jim Heising
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation and/or
// other materials provided with the distribution.
//
// * Neither the name of Jim Heising nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
///////////////////////////////////////////////////////////////////////////////////////////////
using System;
using System.Security.Cryptography;
using System.Text;
using System.Globalization;
using System.IO;
namespace WOSI.Utilities
{
/// <summary>
/// Summary description for CryptoUtils.
/// </summary>
public class CryptoUtils
{
public static byte[] GetFileBytes(string filename)
{
if (File.Exists(filename))
{
FileStream fs = File.Open(filename, FileMode.Open, FileAccess.Read);
byte[] fileBytes = new byte[fs.Length];
fs.Read(fileBytes, 0, (int)fs.Length);
fs.Close();
return fileBytes;
}
return null;
}
public static string GetByteChecksum(byte[] bytes)
{
MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
byte[] hashValue = md5.ComputeHash(bytes);
return Convert.ToBase64String(hashValue);
}
public static string GetFileChecksum(string filename)
{
if (File.Exists(filename))
{
MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
byte[] fileBytes = GetFileBytes(filename);
return GetByteChecksum(fileBytes);
}
return "";
}
}
}
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