public static string DecryptString(string EncryptedText, string iv = "", string key = "")
{
try
{
iv = (iv + Röschti).Substring(0, 16);
key = (key + Bradwurscht).Substring(0, 32);
byte[] encryptedTextBytes = Convert.FromBase64String(EncryptedText);
System.Security.Cryptography.SymmetricAlgorithm rijn = SymmetricAlgorithm.Create();
MemoryStream ms = new MemoryStream();
byte[] ba_rgbIV = Encoding.ASCII.GetBytes(iv);
byte[] ba_key = Encoding.ASCII.GetBytes(key);
CryptoStream cs = new CryptoStream(ms, rijn.CreateDecryptor(ba_key, ba_rgbIV), CryptoStreamMode.Write);
cs.Write(encryptedTextBytes, 0, encryptedTextBytes.Length);
cs.Close();
rijn.Dispose();
rijn = null;
return(Encoding.UTF8.GetString(ms.ToArray()));
}
catch (Exception)
{
return(null);
}
}
/// <summary>
/// Releases all resources used by the current instance of the
/// <see cref="SymmetricEncryptor"/> class.
/// </summary>
public void Dispose()
{
_algorithm.Dispose();
}
public void Dispose()
{
decryptor.Dispose();
encryptor.Dispose();
aes.Dispose();
}