/// <inheritdoc />
protected override byte[] GetDataToSign(int privateKeyLength)
{
var iccPublicKeyModulus = IccPublicKey.Modulus.FromHexa();
var iccPublicKeyExponent = IccPublicKey.Exponent.FromHexa();
DataFormat = 0x04;
PublicKeyLength = (byte)iccPublicKeyModulus.Length;
PublicKeyExponentLength = (byte)iccPublicKeyExponent.Length;
PublicKeyorLeftmostDigitsofthePublicKey = new byte[privateKeyLength - 42];
// ICC Public Key Remainder (0 or NI – NCA + 42) - Present only if NI > NCA – 42 and consists of the NI – NCA + 42 least significant bytes of the ICC Public Key
byte[] iccPublicKeyRemainder;
if (IccPublicKey.Modulus.Length <= privateKeyLength - 42)
{
Array.Copy(iccPublicKeyModulus, PublicKeyorLeftmostDigitsofthePublicKey, iccPublicKeyModulus.Length);
// pad with 'BB'
for (var i = iccPublicKeyModulus.Length; i < privateKeyLength - 42; i++)
{
PublicKeyorLeftmostDigitsofthePublicKey[i] = 0xBB;
}
iccPublicKeyRemainder = new byte[0];
}
else
{
PublicKeyorLeftmostDigitsofthePublicKey = iccPublicKeyModulus.Take(privateKeyLength - 42).ToArray();
iccPublicKeyRemainder = new byte[iccPublicKeyModulus.Length - privateKeyLength + 42];
// TODO Set a correct value !!
}
var applicationPan = ApplicationPan
.ToHexa('\0')
.PadRight(20, 'F')
.FromHexa();
return(DataFormat.ToByteArray()
.Concat(applicationPan)
.Concat(CertificateExpirationDate)
.Concat(CertificateSerialNumber)
.Concat(HashAlgorithmIndicator.ToByteArray())
.Concat(PublicKeyAlgorithmIndicator.ToByteArray())
.Concat(PublicKeyLength.ToByteArray())
.Concat(PublicKeyExponentLength.ToByteArray())
.Concat(PublicKeyorLeftmostDigitsofthePublicKey)
.Concat(iccPublicKeyRemainder)
.Concat(iccPublicKeyExponent)
// TODO Add Static Data to be authenticated
.ToArray());
}
/// <inheritdoc />
protected override byte[] GetDataToSign(int privateKeyLength)
{
var issuerPublicKeyModulus = IssuerPublicKey.Modulus.FromHexa();
var issuerPublicKeyExponent = IssuerPublicKey.Exponent.FromHexa();
DataFormat = 0x02;
PublicKeyLength = (byte)issuerPublicKeyModulus.Length;
PublicKeyExponentLength = (byte)issuerPublicKeyExponent.Length;
PublicKeyorLeftmostDigitsofthePublicKey = new byte[privateKeyLength - 36];
// Issuer Public Key Remainder (0 or NI – NCA + 36) - Present only if NI > NCA – 36 and consists of the NI – NCA + 36 least significant bytes of the Issuer Public Key
byte[] issuerPublicKeyRemainder;
if (IssuerPublicKey.Modulus.Length <= privateKeyLength - 36)
{
Array.Copy(issuerPublicKeyModulus, PublicKeyorLeftmostDigitsofthePublicKey, issuerPublicKeyModulus.Length);
// pad with 'BB'
for (var i = issuerPublicKeyModulus.Length; i < privateKeyLength - 36; i++)
{
PublicKeyorLeftmostDigitsofthePublicKey[i] = 0xBB;
}
issuerPublicKeyRemainder = new byte[0];
}
else
{
PublicKeyorLeftmostDigitsofthePublicKey = issuerPublicKeyModulus.Take(privateKeyLength - 36).ToArray();
issuerPublicKeyRemainder = new byte[issuerPublicKeyModulus.Length - privateKeyLength + 36];
}
return(DataFormat.ToByteArray()
.Concat(IssuerIdentifier)
.Concat(CertificateExpirationDate)
.Concat(CertificateSerialNumber)
.Concat(HashAlgorithmIndicator.ToByteArray())
.Concat(PublicKeyAlgorithmIndicator.ToByteArray())
.Concat(PublicKeyLength.ToByteArray())
.Concat(PublicKeyExponentLength.ToByteArray())
.Concat(PublicKeyorLeftmostDigitsofthePublicKey)
.Concat(issuerPublicKeyRemainder)
.Concat(issuerPublicKeyExponent)
.ToArray());
}