Creating a World SID

Last reviewed: September 25, 1995
Article ID: Q111543

The information in this article applies to:

Microsoft Win32 Application Programming Interface (API) included with:
```
    - Microsoft Windows NT versions 3.1 and 3.5
```

The sample code below demonstrates how to create a World Security Identifier (SID). The World SID (S-1-1-0) is a group that includes all users. To determine if a SID (perhaps in an Access Control Entry) is the World SID, you must first create a World SID to compare it to. Once you have created a World SID, you can use the EqualSid() API (application programming interface) to determine equality.

Sample Code

PSID psidWorldSid; SID_IDENTIFIER_AUTHORITY siaWorldSidAuthority =

     SECURITY_WORLD_SID_AUTHORITY;

psidWorldSid = (PSID)LocalAlloc(LPTR,GetSidLengthRequired( 1 ));

InitializeSid( psidWorldSid, &siaWorldSidAuthority, 1); *(GetSidSubAuthority( psidWorldSid, 0)) = SECURITY_WORLD_RID;

Additional reference words: 3.10 and 3.50
KBCategory: kbprg
KBSubcategory: BseSecurity

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Last reviewed: September 25, 1995
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