readbinary.cpp

台灣自然人憑證登入系統java card login 走PKCS-15

#include "SCcommand.h"




//
// +-----+-----+----------+----------+-----+
// | CLA | INS | P1       | P2       | Le  |
// +-----+-----+----------+----------+-----+
// | 00  | B0  | 0xxxxxxx | xxxxxxxx | Le  |00 B0 00 00 40 
// +-----+-----+----------+----------+-----+
// P1P2  = Offset byte.
// Le    = Length of data to be read.
//

LONG ReadBinary (	SCARDHANDLE hCard, 
					WORD   wOffset,
					INT    iLen,
					BYTE * pData )
{
   	LONG _lResult;
	SCARD_IO_REQUEST  _ioSendPci;
	SCARD_IO_REQUEST  _ioRecvPci;
	BYTE              _CAPDU [300];
	DWORD             _dwCAPDULen;
	BYTE              _RAPDU [300];
	DWORD             _dwRAPDULen=0;


   _CAPDU [ CLA ] = 0x00;	//CLA_NORMAL;
   _CAPDU [ INS ] = 0xB0;	//DSA_READ_BINARY
   _CAPDU [ P1  ] = (BYTE)(wOffset >> 8 );
   _CAPDU [ P2  ] = (BYTE)(wOffset);
   _CAPDU [ LE  ] = (BYTE)iLen;

   _dwCAPDULen = 5;
   _dwRAPDULen = 300;
   _ioSendPci.dwProtocol  = SCARD_PROTOCOL_T1;
   _ioSendPci.cbPciLength = sizeof ( _ioSendPci );
   _ioRecvPci.dwProtocol  = SCARD_PROTOCOL_T1;
   _ioRecvPci.cbPciLength = sizeof ( _ioRecvPci );


   _lResult = SCardTransmit ( hCard, &_ioSendPci, _CAPDU, _dwCAPDULen, &_ioRecvPci, _RAPDU, &_dwRAPDULen );

 
	if ( _lResult == SCARD_S_SUCCESS )
   {

#ifdef _DEBUG
		DumpBuf ( "<Read Binary> ", (char *) _CAPDU, (int) _dwCAPDULen, 0  );
		DumpBuf ( "R = ", (char *) _RAPDU, (int) _dwRAPDULen, 1 );
#endif
		if ( ProcessSW ( _RAPDU, _dwRAPDULen ) == FALSE ){
			_lResult = ICC_ERR_SW1SW2;
		}
		
		//restore the DATAE to response data buffer
		for ( DWORD i = 0; i <_dwRAPDULen-2; i++ )
			pData [ i ] = _RAPDU [ i ];
	
   }
  
	return ( _lResult );
}