2.2.3.2 Security ORPC Extension
This extension sends security information for this protocol as out-of-band data on ORPC calls between two instances of this protocol. The security information provides a record of the chain of caller identities and other security attributes within a series of ORPC calls.
The Security ORPC Extension structure MUST contain an array of Security Property Collection (section 2.2.3.2.3) structures. Each Security Property Collection structure in turn MUST contain an array of Security Property (section 2.2.3.2.1) structures. Each Security Property structure MUST specify a Security Property Type (section 2.2.3.2.1.1).
The policyID field of the EntryHeader ([MS-DCOM] section 2.2.21.5) of the Security ORPC Extension MUST be set to guidSecurityProperty (section 1.9).