SID_IDENTIFIER_AUTHORITY structure (winnt.h)
The SID_IDENTIFIER_AUTHORITY structure represents the top-level authority of a security identifier (SID).
Syntax
typedef struct _SID_IDENTIFIER_AUTHORITY {
BYTE Value[6];
} SID_IDENTIFIER_AUTHORITY, *PSID_IDENTIFIER_AUTHORITY;
Members
Value[6]
An array of 6 bytes specifying a SID's top-level authority.
Remarks
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_NON_UNIQUE_AUTHORITY | 4 |
| SECURITY_NT_AUTHORITY | 5 |
| SECURITY_RESOURCE_MANAGER_AUTHORITY | 9 |
A SID must contain a top-level authority and at least one relative identifier (RID) value.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Header | winnt.h (include Windows.h) |