CertFindExtension function

The CertFindExtension function finds the first extension in the CERT_EXTENSION array, as identified by its object identifier (OID). This function can be used in the processing of a decoded certificate. A CERT_INFO structure is derived from a decoded certificate. The CERT_INFO structure's rgExtension member is passed to CertFindExtension in the rgExtensions parameter. This function determines whether a particular extension is in the array, and if so, returns a pointer to it

Syntax

PCERT_EXTENSION WINAPI CertFindExtension(
  _In_ LPCSTR         pszObjId,
  _In_ DWORD          cExtensions,
  _In_ CERT_EXTENSION rgExtensions[]
);

Parameters

pszObjId [in]

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

cExtensions [in]

Number of extensions in the rgExtensions array.

rgExtensions [in]

Array of CERT_EXTENSION structures.

Return value

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

Requirements

See also

Data Management Functions

CertFindAttribute

CertFindRDNAttr