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AACS_READ_BINDING_NONCE structure (ntddcdvd.h)

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The AACS_READ_BINDING_NONCE structure is a wrapper for the Authentication Grant Identifier (AGID) and logical block address (LBA)/length pair that are required to read a nonce.

Syntax

typedef struct _AACS_READ_BINDING_NONCE {
  DVD_SESSION_ID SessionId;
  ULONG          NumberOfSectors;
  ULONGLONG      StartLba;
  union {
    HANDLE    Handle;
    ULONGLONG ForceStructureLengthToMatch64bit;
  };
} AACS_READ_BINDING_NONCE, *PAACS_READ_BINDING_NONCE;

Members

SessionId

A value of type DVD_SESSION_ID that specifies an AGID. The client obtains this value by a successful call to IOCTL_AACS_START_SESSION.

NumberOfSectors

The number of sectors in the area for which the binding nonce is retrieved. To request the nonce for a file, the caller of IOCTL_AACS_READ_BINDING_NONCE must set this member to MAXULONGLONG.

StartLba

The starting logical block address of the area for which the binding nonce is retrieved. To request the nonce for a file, the caller of IOCTL_AACS_GENERATE_BINDING_NONCE or IOCTL_AACS_READ_BINDING_NONCE must set this member to MAXULONGLONG.

Handle

The file handle. Callers of IOCTL_AACS_READ_BINDING_NONCE that use file system support can set this member to a file handle. If the caller does not use file system support, this member must have a value of INVALID_HANDLE_VALUE.

ForceStructureLengthToMatch64bit

Remarks

Clients retrieve the binding nonce with an IOCTL_AACS_GENERATE_BINDING_NONCE request or an IOCTL_AACS_READ_BINDING_NONCE request.

Requirements

Requirement Value
Header ntddcdvd.h (include Ntddcdvd.h)

See also

AACS_BINDING_NONCE

IOCTL_AACS_GENERATE_BINDING_NONCE

IOCTL_AACS_READ_BINDING_NONCE