BN089-BS开发框架MVC4版/source20131023/Zephyr.Net/Zephyr.Utils/Compress/Ionic/Zip/ZipCrypto.cs

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// ZipCrypto.cs
// ------------------------------------------------------------------
//
// Copyright (c) 2008, 2009, 2011 Dino Chiesa
// All rights reserved.
//
// This code module is part of DotNetZip, a zipfile class library.
//
// ------------------------------------------------------------------
//
// This code is licensed under the Microsoft Public License.
// See the file License.txt for the license details.
// More info on: http://dotnetzip.codeplex.com
//
// ------------------------------------------------------------------
//
// last saved (in emacs):
// Time-stamp: <2011-July-28 06:30:59>
//
// ------------------------------------------------------------------
//
// This module provides the implementation for "traditional" Zip encryption.
//
// Created Tue Apr 15 17:39:56 2008
//
// ------------------------------------------------------------------

using System;

namespace Zephyr.Utils.Ionic.Zip
{
    /// <summary>
    ///   This class implements the "traditional" or "classic" PKZip encryption,
    ///   which today is considered to be weak. On the other hand it is
    ///   ubiquitous. This class is intended for use only by the DotNetZip
    ///   library.
    /// </summary>
    ///
    /// <remarks>
    ///   Most uses of the DotNetZip library will not involve direct calls into
    ///   the ZipCrypto class.  Instead, the ZipCrypto class is instantiated and
    ///   used by the ZipEntry() class when encryption or decryption on an entry
    ///   is employed.  If for some reason you really wanted to use a weak
    ///   encryption algorithm in some other application, you might use this
    ///   library.  But you would be much better off using one of the built-in
    ///   strong encryption libraries in the .NET Framework, like the AES
    ///   algorithm or SHA.
    /// </remarks>
    internal class ZipCrypto
    {
        /// <summary>
        ///   The default constructor for ZipCrypto.
        /// </summary>
        ///
        /// <remarks>
        ///   This class is intended for internal use by the library only. It's
        ///   probably not useful to you. Seriously.  Stop reading this
        ///   documentation.  It's a waste of your time.  Go do something else.
        ///   Check the football scores. Go get an ice cream with a friend.
        ///   Seriously.