CertFindAttribute function (wincrypt.h)

The CertFindAttribute function finds the first attribute in the CRYPT_ATTRIBUTE array, as identified by its object identifier (OID). This function can be used in the processing of a decoded certificate request. A CERT_REQUEST_INFO structure is derived from a decoded certificate request. The rgAttribute array is retrieved from that structure and passed to this function in the rgAttr parameter. This function determines whether a particular attribute is in the array, and if so, returns a pointer to it.

Syntax

PCRYPT_ATTRIBUTE CertFindAttribute(
  [in] LPCSTR             pszObjId,
  [in] DWORD              cAttr,
  [in] CRYPT_ATTRIBUTE [] rgAttr
);

Parameters

[in] pszObjId

A pointer to the object identifier (OID) to use in the search.

[in] cAttr

Number of attributes in the rgAttr array.

[in] rgAttr

Array of CRYPT_ATTRIBUTE structures.

Return value

Returns a pointer to the attribute, if one is found. Otherwise, NULL is returned.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps | UWP apps]
Minimum supported server	Windows Server 2003 [desktop apps | UWP apps]
Target Platform	Windows
Header	wincrypt.h
Library	Crypt32.lib
DLL	Crypt32.dll

See also

CertFindExtension

CertFindRDNAttr

Data Management Functions