| Platform SDK: Access Control |
The SID_IDENTIFIER_AUTHORITY structure represents the top-level authority of a security identifier (SID).
typedef struct _SID_IDENTIFIER_AUTHORITY {
BYTE Value[6];
} SID_IDENTIFIER_AUTHORITY, *PSID_IDENTIFIER_AUTHORITY;
The identifier authority value identifies the agency that issued the SID. The following identifier authorities are predefined.
| Identifier authority | Value |
|---|---|
| SECURITY_NULL_SID_AUTHORITY | 0 |
| SECURITY_WORLD_SID_AUTHORITY | 1 |
| SECURITY_LOCAL_SID_AUTHORITY | 2 |
| SECURITY_CREATOR_SID_AUTHORITY | 3 |
| SECURITY_NT_AUTHORITY | 5 |
A SID must contain a top-level authority and at least one relative identifier (RID) value.
Windows NT/2000: Requires Windows NT 3.1 or later.
Header: Declared in Winnt.h; include Windows.h.
Access Control Overview, Access Control Structures, AllocateAndInitializeSid, GetSidIdentifierAuthority, InitializeSid, SID