// ntifs.h

typedef struct _SID_IDENTIFIER_AUTHORITY {
  UCHAR Value[6];
} SID_IDENTIFIER_AUTHORITY, *PSID_IDENTIFIER_AUTHORITY;
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Windows Driver Kit DDI reference (ns-ntifs-_sid_identifier_authority)

_SID_IDENTIFIER_AUTHORITY structure

Description

The SID_IDENTIFIER_AUTHORITY structure represents the top-level authority of a security identifier (SID).

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. 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

SID_IDENTIFIER_AUTHORITY - NtDoc