CERT_BIOMETRIC_DATA structure (wincrypt.h)

The CERT_BIOMETRIC_DATA structure contains information about biometric data.

Syntax

typedef struct _CERT_BIOMETRIC_DATA {
  DWORD           dwTypeOfBiometricDataChoice;
  union {
    DWORD dwPredefined;
    LPSTR pszObjId;
  } DUMMYUNIONNAME;
  CERT_HASHED_URL HashedUrl;
} CERT_BIOMETRIC_DATA, *PCERT_BIOMETRIC_DATA;

Members

dwTypeOfBiometricDataChoice

Specifies the type of biometric data. This can be one of the following values.

Value	Meaning
CERT_BIOMETRIC_PREDEFINED_DATA_CHOICE	The biometric data type is one of the predefined data types. The dwPredefined member specifies the data type.
CERT_BIOMETRIC_OID_DATA_CHOICE	The biometric data type is identified by the pszObjId member.

DUMMYUNIONNAME

DUMMYUNIONNAME.dwPredefined

Specifies one of the predefined biometric data types. This member is only used if the dwTypeOfBiometricDataChoice member contains CERT_BIOMETRIC_PREDEFINED_DATA_CHOICE. This can be one of the following values.

Value	Meaning
CERT_BIOMETRIC_PICTURE_TYPE	The biometric data is a picture.
CERT_BIOMETRIC_SIGNATURE_TYPE	The biometric data is a signature.

DUMMYUNIONNAME.pszObjId

The address of a null-terminated ANSI string that contains the object identifier (OID) of the biometric data type. This member is only used if the dwTypeOfBiometricDataChoice member contains CERT_BIOMETRIC_OID_DATA_CHOICE.

HashedUrl

A CERT_HASHED_URL structure that contains the hashed URL of the biometric data.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Header	wincrypt.h

See also

CERT_BIOMETRIC_EXT_INFO