public void Test_PEK_Decryption()
{
byte[] decryptedBytes = Dukpt.Decrypt(_bdk, _ksn, _expectedEncryptedHexPEK.HexStringToByteArray(), DUKPTVariant.PIN);
string decryptedData = Encoding.UTF8.GetString(decryptedBytes);
Assert.AreEqual(decryptedData, _clearData);
}
public void TestDecryption()
{
var clear = "%B5452300551227189^HOGAN/PAUL ^08043210000000725000000?\0\0\0\0";
var bdk = "0123456789ABCDEFFEDCBA9876543210";
var ksn = "FFFF9876543210E00008";
var track = "C25C1D1197D31CAA87285D59A892047426D9182EC11353C051ADD6D0F072A6CB3436560B3071FC1FD11D9F7E74886742D9BEE0CFD1EA1064C213BB55278B2F12";
var decBytes = Dukpt.Decrypt(bdk, ksn, track.HexStringToByteArray());
var decrypted = Encoding.UTF8.GetString(decBytes);
Assert.AreEqual(decrypted, clear);
}
static void Main(string[] args)
{
var test = "%B5452300551227189^HOGAN/PAUL ^08043210000000725000000?\0\0\0\0";
// Decrypting
var bdk = "0123456789ABCDEFFEDCBA9876543210";
var ksn = "FFFF9876543210E00008";
var track = "C25C1D1197D31CAA87285D59A892047426D9182EC11353C051ADD6D0F072A6CB3436560B3071FC1FD11D9F7E74886742D9BEE0CFD1EA1064C213BB55278B2F12";
var decBytes = Dukpt.Decrypt(bdk, ksn, BigInt.FromHex(track).GetBytes());
var decrypted = UTF8Encoding.UTF8.GetString(decBytes);
Console.WriteLine(decrypted == test);
// Encrypting
var encBytes = Dukpt.Encrypt(bdk, ksn, decBytes);
var encrypted = BitConverter.ToString(encBytes).Replace("-", "");
Console.WriteLine(encrypted == track);
}
public void Test_PEK_Decryption_Invalid_Length_KSN()
{
byte[] encryptedBytes = Dukpt.Decrypt(_bdk, _ksn.Substring(0, 2), _expectedEncryptedHexPEK.HexStringToByteArray(), DUKPTVariant.PIN);
}
public void Test_DEK_Decryption_Empty_KSN()
{
byte[] decryptedBytes = Dukpt.Decrypt(_bdk, string.Empty, _expectedEncryptedHexDEK.HexStringToByteArray(), DUKPTVariant.Data);
}
public void Test_DEK_Decryption_Null_BDK()
{
byte[] decryptedBytes = Dukpt.Decrypt(null, _ksn, _expectedEncryptedHexDEK.HexStringToByteArray(), DUKPTVariant.Data);
}
public void Test_DEK_Decryption_Null_Data()
{
byte[] decryptedBytes = Dukpt.Decrypt(_bdk, _ksn, null, DUKPTVariant.Data);
}
public void Test_DEK_Decryption_Invalid_Length_BDK()
{
byte[] encryptedBytes = Dukpt.Decrypt(_bdk.Substring(0, _bdk.Length / 2), _ksn, _expectedEncryptedHexDEK.HexStringToByteArray(), DUKPTVariant.Data);
}
public void Test_PEK_Decryption_Empty_BDK()
{
byte[] decryptedBytes = Dukpt.Decrypt(string.Empty, _ksn, _expectedEncryptedHexDEK.HexStringToByteArray(), DUKPTVariant.PIN);
}
public void Test_PEK_Decryption_Null_KSN()
{
byte[] decryptedBytes = Dukpt.Decrypt(_bdk, null, _expectedEncryptedHexDEK.HexStringToByteArray(), DUKPTVariant.PIN);
}