public byte[] getModulusBytes(int padding)
{
try
{
int discarded;
return(HexByteUtils.GetBytes(ModStringData.PadLeft(
padding, '0'), out discarded));
}
catch (System.IO.InvalidDataException e)
{
string p = e.Message;
return(new byte[0]);
}
}
/*
* H8/H9 Command
*
* Input Data:
*
* 001-H801<FDC694A6>
* <30550250AB378F98E373BBC6FA5E698F4F095A6D693A851E53C35CC9633947399C09D70932776DBEA5F2F0F0C4DAB4693CACB4D07B19242FF0435C55E3D4E28EFD563457F7EBA31BE1123DEA78CEC1573716130B020103>
* ;99
* 0192
* <99658789F42672E7C51CB6ECAF3F061BBABCD954D4113E1CD9BD7BD4DF1BD94E6CBC10F497E9AE68265E87F77BFF293AA2D9FDE9C1A8F12A04D9B4D8DB9F5EAEE4690883838DEF670174E70C79E674F97E2457DD85EEEB346A17DD1F39CB3E8B2D69949436051994F8687F0FEE6558F28180D5A63946CD60604B1C82F6AE14454F5824CBFDCEE07478D2F0239299B64CD900DFF7559423E98F0C7AB8229933E4DD5A5E0BD736F8172668676949493577E323FC8EC592437F6DF20EDB5FBB6E92>
* ;0080
* <7C9DDD3AEFF1D50BAFD11DBAF240BE827BAA156F9E8BB555CC019E183B3708F26EBE6C94702A9AD7CC1D2159CF587437532969D113C70BD622EB81AFC06E9408F1B69F3ED838A9EADFB41FB0E6E4202E>
* ;1234567890123456;000
*
*
* Input data converted to binary
*
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
*
*
* Response:
*
* 001-H900
* H604A678C8C78E1B9CFD415220D418E76
* U9912C5D8B113B5E9D6787D57EE9E43BA
* 1122334455
* 9876543210987654
*/
public byte[] BuildCrossAcquirerKeyEncryptionKeyunderInitialTransportKey(string publicKeyEncoding, byte[] macPublicKey, byte[] pinPadPublicKey, byte[] secretKey, byte[] dataBlock, string randomNumber)
{
String message = "H8"; //ascii
message += publicKeyEncoding; //ascii
byte[] bytes1 = Encoding.ASCII.GetBytes(message);
message += macPublicKey; //binary
message += pinPadPublicKey; //binary
byte[] byte2 = macPublicKey.Concat(pinPadPublicKey).ToArray();
string message2 = ";99"; //ascii
message2 += secretKey.Length.ToString("D4"); //ascii
byte[] byte3 = Encoding.ASCII.GetBytes(message2);
byte[] byte4 = secretKey; //binary
string message4 = ";"; //ascii
message4 += dataBlock.Length.ToString("D4"); //ascii
byte[] byte5 = Encoding.ASCII.GetBytes(message4);
byte[] byte6 = dataBlock; //binary
byte[] byte7 = Encoding.ASCII.GetBytes(";"); //ascii
int discarded;
byte[] byte8 = HexByteUtils.GetBytes(randomNumber, out discarded); //binary
message += ";000"; //ascii
byte[] byte9 = Encoding.ASCII.GetBytes(";000");
byte[] dataBytes =
bytes1.Concat(byte2)
.Concat(byte3)
.Concat(byte4)
.Concat(byte5)
.Concat(byte6)
.Concat(byte7)
.Concat(byte8)
.Concat(byte9)
.ToArray();
return(SendBytes(dataBytes));
}
public void setModulus(int modulus)
{
ModStringData = modulus.ToString("X2");
ModBytesData = HexByteUtils.GetBytes(ModStringData, out discarded);
ModInteger = int.Parse(ModStringData, NumberStyles.HexNumber);
}
public Modulus(string mod)
{
ModStringData = mod;
ModBytesData = HexByteUtils.GetBytes(mod, out discarded);
}