/// <summary>
///
/// </summary>
/// <returns></returns>
public CommandAPDU CreateExternalAuthCommand()
{
MemoryStream memStream = new MemoryStream();
memStream.Write(mInitUpdateResponse, 12, 8);
memStream.Write(mHostChallenge, 0, mHostChallenge.Length);
byte[] hostCryptogram = CryptoUtil.FullTripleDESMAC(mSessionKeys.RetrieveKey(Key.KEY_TYPE_ENC),
CryptoUtil.BINARY_ZEROS_8_BYTE_BLOCK, CryptoUtil.DESPad(memStream.ToArray()));
int P1 = mSecurityLevel;
CommandAPDU externalAuth = new CommandAPDU(CLA_SECURE_GP, INS_EXT_AUTH, P1, 0x00, hostCryptogram);
mSecureChannel = new SecureChannel(mSessionKeys, SecurityLevel.C_MAC, mSCPIdentifier,
mSCPImplementationOption, CryptoUtil.BINARY_ZEROS_8_BYTE_BLOCK, CryptoUtil.BINARY_ZEROS_8_BYTE_BLOCK);
externalAuth = mSecureChannel.wrap(externalAuth);
return(externalAuth);
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public CommandAPDU CreateExternalAuthCommand()
{
MemoryStream memStream = new MemoryStream();
memStream.Write(mInitUpdateResponse, 12, 8);
memStream.Write(mHostChallenge, 0, mHostChallenge.Length);
byte[] hostCryptogram = CryptoUtil.FullTripleDESMAC(mSessionKeys.RetrieveKey(Key.KEY_TYPE_ENC),
CryptoUtil.BINARY_ZEROS_8_BYTE_BLOCK, CryptoUtil.DESPad(memStream.ToArray()));
int P1 = mSecurityLevel;
CommandAPDU externalAuth = new CommandAPDU(CLA_SECURE_GP, INS_EXT_AUTH, P1, 0x00, hostCryptogram);
mSecureChannel = new SecureChannel(mSessionKeys, SecurityLevel.C_MAC, mSCPIdentifier,
mSCPImplementationOption, CryptoUtil.BINARY_ZEROS_8_BYTE_BLOCK, CryptoUtil.BINARY_ZEROS_8_BYTE_BLOCK);
externalAuth = mSecureChannel.wrap(externalAuth);
return externalAuth;
}
