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static byte[] rgbKey = { 22, 33, 97, 10, 5, 7, 67, 38 }; //des加密钥匙
static byte[] rgbIV = { 10, 23, 34, 45, 51, 99, 27, 68 };//des解密钥匙
/// <summary>
/// des加密字符串
/// </summary>
/// <param name="encryptString">需要加密的字符串</param>
/// <returns></returns>
public static string DESEncrypt(string encryptString)
{
try
{
byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);
DESCryptoServiceProvider desc = new DESCryptoServiceProvider();
using (MemoryStream mStream = new MemoryStream())
{
using (CryptoStream cStream = new CryptoStream(mStream, desc.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write))
{
cStream.Write(inputByteArray, 0, inputByteArray.Length);
cStream.FlushFinalBlock();
}
return Convert.ToBase64String(mStream.ToArray());
}
}
catch
{
return encryptString;
}
}
/// <summary>
/// des解密字符串
/// </summary>
/// <param name="decryptString">要解密的字符串</param>
/// <returns></returns>
public static string DESDecrypt(string decryptString)
{
try
{
byte[] inputByteArray = Convert.FromBase64String(decryptString);
DESCryptoServiceProvider desc = new DESCryptoServiceProvider();
using (MemoryStream mStream = new MemoryStream())
{
using (CryptoStream cStream = new CryptoStream(mStream, desc.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write))
{
cStream.Write(inputByteArray, 0, inputByteArray.Length);
cStream.FlushFinalBlock();
}
return Encoding.UTF8.GetString(mStream.ToArray());
}
}
catch
{
return decryptString;
}
}