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Quick Info 
 Windows NT
  | Yes
  |  Win95
  | No
  |  Win32s
  | No
  |  Import Library
  | -
  |  Header File
  | winnt.h
  |  Unicode
  | No
  |  Platform Notes
  | None
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SID_IDENTIFIER_AUTHORITY
The 
SID_IDENTIFIER_AUTHORITY structure represents the top-level authority of a security identifier (SID). 
typedef struct _SID_IDENTIFIER_AUTHORITY { // sia  
    BYTE Value[6]; 
} SID_IDENTIFIER_AUTHORITY ; 
 
Members
Value
An array of six bytes specifying a SID's top-level authority. 
 
Remarks
The identifier authority value identifies the agency that issued the SID. Some
identifier authorities are predefined: 
Identifier authority
  | Value
  | 
SECURITY_NULL_SID_AUTHORITY
  | 0
  | 
SECURITY_WORLD_SID_AUTHORITY
  | - 
  
  | 
SECURITY_LOCAL_SID_AUTHORITY
  | - 
  
  | 
SECURITY_CREATOR_SID_AUTHORITY
  | - 
  
  | 
SECURITY_NT_AUTHORITY
  | 5
  | 
 
A SID must contain a top-level authority and at least one relative identifier
(RID) value. 
See Also
AllocateAndInitializeSid, 
GetSidIdentifierAuthority, 
InitializeSid, 
SID
			
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