RtlEqualSid function (ntifs.h)

Article
02/22/2024

The RtlEqualSid routine determines whether two security identifier (SID) values are equal. Two SIDs must match exactly to be considered equal.

Syntax

NTSYSAPI BOOLEAN RtlEqualSid(
  [in] PSID Sid1,
  [in] PSID Sid2
);

Parameters

[in] Sid1

Pointer to the first SID structure to compare. Must point to a valid SID.

[in] Sid2

Pointer to the second SID structure to compare. Must point to a valid SID.

Return value

RtlEqualSid returns TRUE if the SID structures are equal, FALSE otherwise. If either SID structure is invalid, the return value is undefined.

Remarks

For more information about security and access control, see Windows security model for driver developers and the documentation on these topics in the Windows SDK.

Requirements

Requirement	Value
Target Platform	Universal
Header	ntifs.h (include Ntifs.h)
Library	NtosKrnl.lib
DLL	NtosKrnl.exe (kernel mode); Ntdll.dll (user mode)
IRQL	Any