// pointofservicedriverinterface.h

typedef struct _MSR_AUTHENTICATE_DEVICE {
  unsigned char Size;
  unsigned char Challenge1[MSR_CHALLENGE_SIZE];
  unsigned char SessionId[MSR_SESSION_ID_SIZE];
} MSR_AUTHENTICATE_DEVICE, *PMSR_AUTHENTICATE_DEVICE;
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Windows Driver Kit DDI reference (ns-pointofservicedriverinterface-_msr_authenticate_device)

_MSR_AUTHENTICATE_DEVICE structure

Description

This structure provides the authentication information used to authenticate a device.

Members

`Size`

If the optional SessionId is present, this will include the size of SessionId[MSR_SESSION_ID_SIZE]

`Challenge1`

The challenge token.

`SessionId`

The session ID. This is primarily used to identify each transaction so that you can prevent errors such as processing the same transaction twice.

MSR_AUTHENTICATE_DEVICE - NtDoc