/// <summary>
/// 通过密钥，对字符串形式的加密数据进行解密
/// </summary>
/// <param name="bytes"></param>
/// <param name="SecretKey">密钥</param>
/// <param name="SingleLine">True：解析单行；False：解析所有</param>
/// <param name="Standard">是否使用标准方式</param>
/// <returns></returns>
public static string Decrypt(this byte[] bytes, string SecretKey, bool SingleLine = true, bool Standard = false)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
if (Standard)
{
des.Mode = CipherMode.ECB;
des.Padding = PaddingMode.Zeros;
}
des.Key = SecretKey.ToMD5().Substring(0, 0x08).ToBytes();
des.IV = SecretKey.ToMD5().Substring(0, 0x08).ToBytes();
global::System.IO.MemoryStream ms = new global::System.IO.MemoryStream(bytes);
string val = string.Empty;
try
{
CryptoStream encStream = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Read);
global::System.IO.StreamReader sr = new global::System.IO.StreamReader(encStream);
val = SingleLine ? sr.ReadLine() : sr.ReadToEnd();
sr.Close();
encStream.Close();
}
catch
{
val = "密钥错误，解密失败。";
}
finally
{
ms.Close();
}
return val;
}
public void Close()
{
if (tr != null)
{
tr.Close();
}
if (tw != null)
{
tw.Close();
}
tr = null;
tw = null;
}
