成都网站建设设计

将想法与焦点和您一起共享

C#使用DES和AES实现加密解密功能示例-创新互联

本文实例讲述了C#使用DES和AES实现加密解密功能。分享给大家供大家参考,具体如下:

为聂拉木等地区用户提供了全套网页设计制作服务,及聂拉木网站建设行业解决方案。主营业务为网站制作、成都网站设计、聂拉木网站设计,以传统方式定制建设网站,并提供域名空间备案等一条龙服务,秉承以专业、用心的态度为用户提供真诚的服务。我们深信只要达到每一位用户的要求,就会得到认可,从而选择与我们长期合作。这样,我们也可以走得更远!
using System;
using System.Text;
using System.Security.Cryptography;
using System.IO;
namespace MyCryptography
{
  /// 
  /// DES加密解密
  /// 
  public class DES
  {
    /// 
    /// 获取密钥
    /// 
    private static string Key
    {
      get { return @"P@+#wG+Z"; }
    }
    /// 
    /// 获取向量
    /// 
    private static string IV
    {
      get { return @"L%n67}G\Mk@k%:~Y"; }
    }
    /// 
    /// DES加密
    /// 
    /// 明文字符串
    /// 密文
    public static string DESEncrypt(string plainStr)
    {
      byte[] bKey = Encoding.UTF8.GetBytes(Key);
      byte[] bIV = Encoding.UTF8.GetBytes(IV);
      byte[] byteArray = Encoding.UTF8.GetBytes(plainStr);
      string encrypt = null;
      DESCryptoServiceProvider des = new DESCryptoServiceProvider();
      try
      {
        using (MemoryStream mStream = new MemoryStream())
        {
          using (CryptoStream cStream = new CryptoStream(mStream, des.CreateEncryptor(bKey, bIV), CryptoStreamMode.Write))
          {
            cStream.Write(byteArray, 0, byteArray.Length);
            cStream.FlushFinalBlock();
            encrypt = Convert.ToBase64String(mStream.ToArray());
          }
        }
      }
      catch { }
      des.Clear();
      return encrypt;
    }
    /// 
    /// DES解密
    /// 
    /// 密文字符串
    /// 明文
    public static string DESDecrypt(string encryptStr)
    {
      byte[] bKey = Encoding.UTF8.GetBytes(Key);
      byte[] bIV = Encoding.UTF8.GetBytes(IV);
      byte[] byteArray = Convert.FromBase64String(encryptStr);
      string decrypt = null;
      DESCryptoServiceProvider des = new DESCryptoServiceProvider();
      try
      {
        using (MemoryStream mStream = new MemoryStream())
        {
          using (CryptoStream cStream = new CryptoStream(mStream, des.CreateDecryptor(bKey, bIV), CryptoStreamMode.Write))
          {
            cStream.Write(byteArray, 0, byteArray.Length);
            cStream.FlushFinalBlock();
            decrypt = Encoding.UTF8.GetString(mStream.ToArray());
          }
        }
      }
      catch { }
      des.Clear();
      return decrypt;
    }
  }
  /// 
  /// AES加密解密
  /// 
  public class AES
  {
    /// 
    /// 获取密钥
    /// 
    private static string Key
    {
      get { return @")O[NB]6,YF}+efcaj{+oESb9d8>Z'e9M"; }
    }
    /// 
    /// 获取向量
    /// 
    private static string IV
    {
      get { return @"L+\~f4,Ir)b$=pkf"; }
    }
    /// 
    /// AES加密
    /// 
    /// 明文字符串
    /// 密文
    public static string AESEncrypt(string plainStr)
    {
      byte[] bKey = Encoding.UTF8.GetBytes(Key);
      byte[] bIV = Encoding.UTF8.GetBytes(IV);
      byte[] byteArray = Encoding.UTF8.GetBytes(plainStr);
      string encrypt = null;
      Rijndael aes = Rijndael.Create();
      try
      {
        using (MemoryStream mStream = new MemoryStream())
        {
          using (CryptoStream cStream = new CryptoStream(mStream, aes.CreateEncryptor(bKey, bIV), CryptoStreamMode.Write))
          {
            cStream.Write(byteArray, 0, byteArray.Length);
            cStream.FlushFinalBlock();
            encrypt = Convert.ToBase64String(mStream.ToArray());
          }
        }
      }
      catch { }
      aes.Clear();
      return encrypt;
    }
    /// 
    /// AES加密
    /// 
    /// 明文字符串
    /// 加密失败时是否返回 null,false 返回 String.Empty
    /// 密文
    public static string AESEncrypt(string plainStr, bool returnNull)
    {
      string encrypt = AESEncrypt(plainStr);
      return returnNull ? encrypt : (encrypt == null ? String.Empty : encrypt);
    }
    /// 
    /// AES解密
    /// 
    /// 密文字符串
    /// 明文
    public static string AESDecrypt(string encryptStr)
    {
      byte[] bKey = Encoding.UTF8.GetBytes(Key);
      byte[] bIV = Encoding.UTF8.GetBytes(IV);
      byte[] byteArray = Convert.FromBase64String(encryptStr);
      string decrypt = null;
      Rijndael aes = Rijndael.Create();
      try
      {
        using (MemoryStream mStream = new MemoryStream())
        {
          using (CryptoStream cStream = new CryptoStream(mStream, aes.CreateDecryptor(bKey, bIV), CryptoStreamMode.Write))
          {
            cStream.Write(byteArray, 0, byteArray.Length);
            cStream.FlushFinalBlock();
            decrypt = Encoding.UTF8.GetString(mStream.ToArray());
          }
        }
      }
      catch { }
      aes.Clear();
      return decrypt;
    }
    /// 
    /// AES解密
    /// 
    /// 密文字符串
    /// 解密失败时是否返回 null,false 返回 String.Empty
    /// 明文
    public static string AESDecrypt(string encryptStr, bool returnNull)
    {
      string decrypt = AESDecrypt(encryptStr);
      return returnNull ? decrypt : (decrypt == null ? String.Empty : decrypt);
    }
  }
}

另外有需要云服务器可以了解下创新互联建站www.cdcxhl.com,海内外云服务器15元起步,三天无理由+7*72小时售后在线,公司持有idc许可证,提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案,具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势,专为企业上云打造定制,能够满足用户丰富、多元化的应用场景需求。


当前标题:C#使用DES和AES实现加密解密功能示例-创新互联
分享路径:http://chengdu.cdxwcx.cn/article/coieje.html