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#region ========加密========
/// <summary>
/// 加密数据
/// </summary>
/// <param name="Text"></param>
/// <param name="sKey"></param>
/// <returns></returns>
public static string Encrypt(string Text,string sKey)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
byte[] inputByteArray;
inputByteArray = Encoding.Default.GetBytes(Text);
var chars = FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8);
des.Key = Encoding.ASCII.GetBytes(chars);
des.IV = Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey,"md5").Substring(0,8));
System.IO.MemoryStream ms = new System.IO.MemoryStream();
CryptoStream cs = new CryptoStream(ms,des.CreateEncryptor(),CryptoStreamMode.Write);
cs.Write(inputByteArray,0,inputByteArray.Length);
cs.FlushFinalBlock();
// byte[] dd = des.CreateEncryptor().TransformFinalBlock(inputByteArray, 0, inputByteArray.Length);
StringBuilder ret = new StringBuilder();
foreach ( byte b in ms.ToArray() )
{
ret.AppendFormat("{0:X2}",b);
}
return ret.ToString();
}
#endregion
#region ========解密========
/// <summary>
/// 解密数据
/// </summary>
/// <param name="Text"></param>
/// <param name="sKey"></param>
/// <returns></returns>
public static string Decrypt(string Text,string sKey)
{
try
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
int len;
len = Text.Length / 2;
byte[] inputByteArray = new byte[len];
int x, i;
for ( x = 0; x < len; x++ )
{
i = Convert.ToInt32(Text.Substring(x * 2,2),16);
inputByteArray[x] = (byte)i;
}
des.Key = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey,"md5").Substring(0,8));
des.IV = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey,"md5").Substring(0,8));
System.IO.MemoryStream ms = new System.IO.MemoryStream();
CryptoStream cs = new CryptoStream(ms,des.CreateDecryptor(),CryptoStreamMode.Write);
cs.Write(inputByteArray,0,inputByteArray.Length);
cs.FlushFinalBlock();
return Encoding.Default.GetString(ms.ToArray());
}
catch
{
return "";
}
}
#endregion
使用：
string IPassword = Encrypt(password, ConfigurationManager.AppSettings["sKey"].ToString()); //加密
string JPassword = Decrypt(Password, ConfigurationManager.AppSettings["sKey"].ToString()); //解密
webConfig配置：
<!--Md5加密key-->--这个根据自己的条件配置
<add key="sKey" value="JUNDAOXT"/>