JZSystem.readWriteMifare
Hi, all
I'm using JCOP31bio. I would like to read/write mifare on SmartMX. Here is my code.
byte[] m_ar = new byte[16+8];
// Key A & key B are FF FF FF FF FF FF
// MF_PASSWORD = 0B 54 57 07 45 FE 3A E7
m_ar[7] = (byte)0x0B;
m_ar[6] = (byte)0x54;
m_ar[5] = (byte)0x57;
m_ar[4] = (byte)0x07;
m_ar[3] = (byte)0x45;
m_ar[2] = (byte)0xFE;
m_ar[1] = (byte)0x3A;
m_ar[0] = (byte)0xE7;
short ret = JZSystem.readWriteMifare(JZSystem.MIFARE_PASSWORD_READ, m_ar, (short)0, (short)0);
if(retsh==0){
apdu.setOutgoing();
apdu.setOutgoingLength((short)16);
apdu.sendBytesLong(m_ar, (short)8, (short)16);
}else{
ISOException.throwIt(ISO7816.SW_DATA_INVALID );
}
The card always returns 0x6F00 (Internal problem with no additional information). I thinks the error is
JZSystem.readWriteMifare(...);
. How do I solve the problem?
Thank you.
Hi,
My problem is that丗
byte[] pw = JCSystem.makeTransientByteArray((short) 24, JCSystem.CLEAR_ON_DESELECT);
pw[0] = (byte) 0xE7;// MF_password
pw[1] = (byte) 0x3A;
pw[2] = (byte) 0xFE;
pw[3] = (byte) 0x45;
pw[4] = (byte) 0x07;
pw[5] = (byte) 0x57;
pw[6] = (byte) 0x54;
pw[7] = (byte) 0x0B;
if (JZSystem.readWriteMifare(JZSystem.MIFARE_PASSWORD_READ, pw2, (short) 0, (short) 5) != 0)
ISOException.throwIt(ISO7816.SW_SECURITY_STATUS_NOT_SATISFIED);
My return values are always negative except block0.
Anyone can help solve the problem?
Thank you
Hi Sakada_Chaowanue:
Maybe you can try this.
byte [] buf = apdu.getBuffer();
buf[7] = (byte) 0xE7;
buf[6] = (byte) 0x3A;
buf[5] = (byte) 0xFE;
buf[4] = (byte) 0x45;
buf[3] = (byte) 0x07;
buf[2] = (byte) 0x57;
buf[1] = (byte) 0x54;
buf[0] = (byte) 0x0B;
JZSystem.readWriteMifare(JZSystem.MIFARE_PASSWORD_READ, buf, (short)0, (short) 2);
apdu.setOutgoingAndSend((short)8, (short) 16);
The return code of 0x6F00 may not come from the JZSystem.readWriteMifare() function.
Regards,
trylans
