This structure appears as a certificate extension and indicates how to access certification authority (CA) information and services for the issuer of that certificate. Information and services can include online validation services and CA policy data. This extension can be included in subject or CA certificates. It is always noncritical.

The CryptDecodeObject function creates an instance of this structure when performed on a CERT_EXTENSION structure's Value member with the structure's pszObjId member set to szOID_AUTHORITY_INFO_ACCESS.

An instance of this structure can be used as input to the CryptEncodeObject function to create an appropriate CERT_EXTENSION structure.

DWORD cAccDescr;


  • cAccDescr
    Number of elements in the rgAccDescr array.
  • rgAccDescr
    Array of pointers to CERT_ACCESS_DESCRIPTION structures that describes the format and location of additional information about the CA that issued the certificate. Each CERT_ACCESS_DESCRIPTION structure has as its members a pszAccessMethod string indicating an access method and a CERT_ALT_NAME_ENTRY structure indicating the location of the additional information.


Runs on Versions Defined in Include Link to
Windows CE OS 3.0 or later Wincrypt.h    

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also


 Last updated on Tuesday, July 13, 2004

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