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ns-ntifs-_sid.md

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UID title description old-location tech.root ms.date keywords ms.keywords req.header req.include-header req.target-type req.target-min-winverclnt req.target-min-winversvr req.kmdf-ver req.umdf-ver req.ddi-compliance req.unicode-ansi req.idl req.max-support req.namespace req.assembly req.type-library req.lib req.dll req.irql targetos req.typenames f1_keywords topic_type api_type api_location api_name
NS:ntifs._SID
SID (ntifs.h)
The security identifier (SID) structure is a variable-length structure used to uniquely identify users or groups.
ifsk\sid.htm
ifsk
05/24/2022
SID structure
*PISID, PSID, PSID structure pointer [Installable File System Drivers], SID, SID structure [Installable File System Drivers], _SID, ifsk.sid, ntifs/PSID, ntifs/SID, securitystructures_748be9da-f428-42cd-a1f8-eca090e2b3aa.xml
ntifs.h
Ntifs.h
Windows
Windows
SID, *PISID
_SID
ntifs/_SID
PISID
ntifs/PISID
SID
ntifs/SID
APIRef
kbSyntax
HeaderDef
ntifs.h
_SID
PISID
SID

SID structure

-description

The security identifier (SID) structure is a variable-length structure used to uniquely identify users or groups.

Drivers must not modify the SID structure directly. To create and manipulate a security identifier, use the support routines listed in the See Also section.

-struct-fields

-field Revision

The revision level assigned to the SID.

-field SubAuthorityCount

Number of subauthorities in the SID.

-field IdentifierAuthority

A SID_IDENTIFIER_AUTHORITY structure that represents the top-level authority of the SID.

-field SubAuthority[*]

The subauthority of the SID.

-field SubAuthority[ANYSIZE_ARRAY]

The subauthority of the SID.

-see-also

RtlCopySid

RtlEqualPrefixSid

RtlEqualSid

RtlGetOwnerSecurityDescriptor

RtlInitializeSid

RtlLengthSid

RtlSetOwnerSecurityDescriptor

RtlSubAuthoritySid

RtlValidSid

SID_AND_ATTRIBUTES

SID_IDENTIFIER_AUTHORITY