public string Encrypt(string message)
{
LegacyCryptoKey ck = new LegacyCryptoKey();
ck.BuildKey(this.cryptoKey);
byte[] data = UTF8Encoding.UTF8.GetBytes(message);
MemoryStream ms = new MemoryStream();
DESCryptoServiceProvider csp = new DESCryptoServiceProvider();
CryptoStream cs = new CryptoStream(ms, csp.CreateEncryptor(ck.Key, ck.IV), CryptoStreamMode.Write);
cs.Write(data, 0, data.Length);
cs.FlushFinalBlock();
byte[] result = new byte[ms.Position];
ms.Position = 0;
ms.Read(result, 0, result.Length);
cs.Close();
ms.Close();
string encrypted = Convert.ToBase64String(result);
return encrypted;
}
public string Decrypt(string message)
{
if (message == "" || message == null)
{
return String.Empty;
}
byte[] bData = Convert.FromBase64String(message);
LegacyCryptoKey ck = new LegacyCryptoKey();
ck.BuildKey(this.cryptoKey);
MemoryStream memoryStream = new MemoryStream(bData.Length);
DESCryptoServiceProvider desCryptoServiceProvider = new DESCryptoServiceProvider();
CryptoStream cryptoStream = new CryptoStream(memoryStream, desCryptoServiceProvider.CreateDecryptor(ck.Key, ck.IV), CryptoStreamMode.Read);
memoryStream.Write(bData, 0, bData.Length);
memoryStream.Position = 0;
string decrypted = new StreamReader(cryptoStream).ReadToEnd();
cryptoStream.Close();
return decrypted;
}
