
SCM3712 REFERENCE MANUAL 31
6.3.3. PC/SC 2.0 compliant ATR
6.3.3.1. Determining the technology of the user credential
The ScardControl method of PC/SC(see http://msdn.microsoft.com/en-
us/library/aa379474(VS.85).aspx) should be used to send the 0x90 IOCTL to SCM3712 in order to
determine what type of technology is the user token based on. The output buffer is a BYTE with the
following meaning:
MIFARE Ultralight
and Ultralight C
0x03
DESFire
ISO14443-4B 0x07
Once a user credential is selected, the driver constructs an ATR from the fixed elements identifying
the token. Depending on the user technology this ATR can be analyzed as described hereunder.
Kommentare zu diesen Handbüchern