/// <summary>
/// 解密数据
/// </summary>
/// <param name="text"></param>
/// <param name="sKey"></param>
/// <returns></returns>
public static string Decrypt(string text, string sKey)
{
var des = new DESCryptoServiceProvider();
var len = text.Length / 2;
byte[] inputByteArray = new byte[len];
for (int x = 0; x < len; x++)
{
var i = Convert.ToInt32(text.Substring(x * 2, 2), 16);
inputByteArray[x] = (byte)i;
}
des.Key = Encoding.ASCII.GetBytes(Md5.Hash(sKey).Substring(0, 8));
des.IV = Encoding.ASCII.GetBytes(Md5.Hash(sKey).Substring(0, 8));
using var ms = new System.IO.MemoryStream();
using var cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
return(Encoding.Default.GetString(ms.ToArray()));
}
/// <summary>
/// 加密数据
/// </summary>
/// <param name="text"></param>
/// <param name="sKey"></param>
/// <returns></returns>
public static string Encrypt(string text, string sKey)
{
var des = new DESCryptoServiceProvider();
byte[] inputByteArray = Encoding.Default.GetBytes(text);
des.Key = Encoding.ASCII.GetBytes(Md5.Hash(sKey).Substring(0, 8));
des.IV = Encoding.ASCII.GetBytes(Md5.Hash(sKey).Substring(0, 8));
using var ms = new MemoryStream();
using var cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
var ret = new StringBuilder();
foreach (byte b in ms.ToArray())
{
ret.AppendFormat("{0:X2}", b);
}
return(ret.ToString());
}
