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.
Number of elements in the rgAccDescr array.
Pointer to an array of CERT_ACCESS_DESCRIPTION structures that describe the format and location of additional information about the CA that issued the certificate.