RtlSubAuthoritySid - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
#ifndef _NTRTL_H

NTSYSAPI
PULONG
NTAPI
RtlSubAuthoritySid(
    _In_ PSID Sid,
    _In_ ULONG SubAuthority
    );

#endif

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// ntifs.h

NTSYSAPI PULONG RtlSubAuthoritySid(
  [in] PSID  Sid,
       ULONG SubAuthority
);
View the official Windows Driver Kit DDI reference

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This function is documented in Windows Driver Kit.

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Windows Driver Kit DDI reference (nf-ntifs-rtlsubauthoritysid)

RtlSubAuthoritySid function

Description

The RtlSubAuthoritySid routine returns a pointer to a specified subauthority of a security identifier (SID).

Parameters

Sid [in]

Pointer to the SID structure. The SID must have been initialized by calling RtlInitializeSid.

SubAuthority

Zero-based index indicating which subauthority is being specified. This value is not validated against the number of subauthorities in the SID.

Return value

If the call to RtlSubAuthoritySid succeeds, the return value is a pointer to the specified SID subauthority. The subauthority value is a relative identifier. (The relative identifier, or RID, is the portion of a SID that identifies a user or group in relation to the authority that issued the SID.)

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.

See also

RtlInitializeSid

SID

View the official Windows Driver Kit DDI reference

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