SID Strings

In the security descriptor definition language (SDDL), security descriptor string use SID strings for the following components of a security descriptor:

• Owner
• Primary group
• The trustee in an ACE

A SID string in a security descriptor string can use either the standard string representation of a SID (S-R-I-S-S…) or one of the string constants defined in Sddl.h. For more information about the standard SID string notation, see SID Components.

The following SID string constants for well-known SIDs are defined in Sddl.h. For information about the corresponding relative IDs (RIDs), see Well-known SIDs.

SID string	Constant in Sddl.h	Account alias and corresponding RID
"AN"	SDDL_ANONYMOUS	Anonymous logon. The corresponding RID is SECURITY_ANONYMOUS_LOGON_RID.
"AO"	SDDL_ACCOUNT_OPERATORS	Account operators. The corresponding RID is DOMAIN_ALIAS_RID_ACCOUNT_OPS.
"AU"	SDDL_AUTHENTICATED_USERS	Authenticated users. The corresponding RID is SECURITY_AUTHENTICATED_USER_RID.
"BA"	SDDL_BUILTIN_ADMINISTRATORS	Built-in administrators. The corresponding RID is DOMAIN_ALIAS_RID_ADMINS.
"BG"	SDDL_BUILTIN_GUESTS	Built-in guests. The corresponding RID is DOMAIN_ALIAS_RID_GUESTS.
"BO"	SDDL_BACKUP_OPERATORS	Backup operators. The corresponding RID is DOMAIN_ALIAS_RID_BACKUP_OPS.
"BU"	SDDL_BUILTIN_USERS	Built-in users. The corresponding RID is DOMAIN_ALIAS_RID_USERS.
"CA"	SDDL_CERT_SERV_ADMINISTRATORS	Certificate publishers. The corresponding RID is DOMAIN_GROUP_RID_CERT_ADMINS.
"CD"	SDDL_CERTSVC_DCOM_ACCESS	Users who can connect to certification authorities using Distributed Component Object Model (DCOM). The corresponding RID is DOMAIN_ALIAS_RID_CERTSVC_DCOM_ACCESS_GROUP.
"CG"	SDDL_CREATOR_GROUP	Creator group. The corresponding RID is SECURITY_CREATOR_GROUP_RID.
"CO"	SDDL_CREATOR_OWNER	Creator owner. The corresponding RID is SECURITY_CREATOR_OWNER_RID.
"DA"	SDDL_DOMAIN_ADMINISTRATORS	Domain administrators. The corresponding RID is DOMAIN_GROUP_RID_ADMINS.
"DC"	SDDL_DOMAIN_COMPUTERS	Domain computers. The corresponding RID is DOMAIN_GROUP_RID_COMPUTERS.
"DD"	SDDL_DOMAIN_DOMAIN_CONTROLLERS	Domain controllers. The corresponding RID is DOMAIN_GROUP_RID_CONTROLLERS.
"DG"	SDDL_DOMAIN_GUESTS	Domain guests. The corresponding RID is DOMAIN_GROUP_RID_GUESTS.
"DU"	SDDL_DOMAIN_USERS	Domain users. The corresponding RID is DOMAIN_GROUP_RID_USERS.
"EA"	SDDL_ENTERPRISE_ADMINS	Enterprise administrators. The corresponding RID is DOMAIN_GROUP_RID_ENTERPRISE_ADMINS.
"ED"	SDDL_ENTERPRISE_DOMAIN_CONTROLLERS	Enterprise domain controllers. The corresponding RID is SECURITY_SERVER_LOGON_RID.
"HI"	SDDL_ML_HIGH	High integrity level. The corresponding RID is SECURITY_MANDATORY_HIGH_RID.
"IU"	SDDL_INTERACTIVE	Interactively logged-on user. This is a group identifier added to the token of a process when it was logged on interactively. The corresponding logon type is LOGON32_LOGON_INTERACTIVE. The corresponding RID is SECURITY_INTERACTIVE_RID.
"LA"	SDDL_LOCAL_ADMIN	Local administrator. The corresponding RID is DOMAIN_USER_RID_ADMIN.
"LG"	SDDL_LOCAL_GUEST	Local guest. The corresponding RID is DOMAIN_USER_RID_GUEST.
"LS"	SDDL_LOCAL_SERVICE	Local service account. The corresponding RID is SECURITY_LOCAL_SERVICE_RID.
"LW"	SDDL_ML_LOW	Low integrity level. The corresponding RID is SECURITY_MANDATORY_LOW_RID.
"ME"	SDDL_MLMEDIUM	Medium integrity level. The corresponding RID is SECURITY_MANDATORY_MEDIUM_RID.
"MU"	SDDL_PERFMON_USERS	Performance Monitor users.
"NO"	SDDL_NETWORK_CONFIGURATION_OPS	Network configuration operators. The corresponding RID is DOMAIN_ALIAS_RID_NETWORK_CONFIGURATION_OPS.
"NS"	SDDL_NETWORK_SERVICE	Network service account. The corresponding RID is SECURITY_NETWORK_SERVICE_RID.
"NU"	SDDL_NETWORK	Network logon user. This is a group identifier added to the token of a process when it was logged on across a network. The corresponding logon type is LOGON32_LOGON_NETWORK. The corresponding RID is SECURITY_NETWORK_RID.
"PA"	SDDL_GROUP_POLICY_ADMINS	Group Policy administrators. The corresponding RID is DOMAIN_GROUP_RID_POLICY_ADMINS.
"PO"	SDDL_PRINTER_OPERATORS	Printer operators. The corresponding RID is DOMAIN_ALIAS_RID_PRINT_OPS.
"PS"	SDDL_PERSONAL_SELF	Principal self. The corresponding RID is SECURITY_PRINCIPAL_SELF_RID.
"PU"	SDDL_POWER_USERS	Power users. The corresponding RID is DOMAIN_ALIAS_RID_POWER_USERS.
"RC"	SDDL_RESTRICTED_CODE	Restricted code. This is a restricted token created using the CreateRestrictedToken function. The corresponding RID is SECURITY_RESTRICTED_CODE_RID.
"RD"	SDDL_REMOTE_DESKTOP	Terminal server users. The corresponding RID is DOMAIN_ALIAS_RID_REMOTE_DESKTOP_USERS.
"RE"	SDDL_REPLICATOR	Replicator. The corresponding RID is DOMAIN_ALIAS_RID_REPLICATOR.
"RO"	SDDL_ENTERPRISE_RO_DCs	Enterprise Read-only domain controllers. The corresponding RID is DOMAIN_GROUP_RID_ENTERPRISE_READONLY_DOMAIN_CONTROLLERS.
"RS"	SDDL_RAS_SERVERS	RAS servers group. The corresponding RID is DOMAIN_ALIAS_RID_RAS_SERVERS.
"RU"	SDDL_ALIAS_PREW2KCOMPACC	Alias to grant permissions to accounts that use applications compatible with operating systems previous to Windows 2000. The corresponding RID is DOMAIN_ALIAS_RID_PREW2KCOMPACCESS.
"SA"	SDDL_SCHEMA_ADMINISTRATORS	Schema administrators. The corresponding RID is DOMAIN_GROUP_RID_SCHEMA_ADMINS.
"SI"	SDDL_ML_SYSTEM	System integrity level. The corresponding RID is SECURITY_MANDATORY_SYSTEM_RID.
"SO"	SDDL_SERVER_OPERATORS	Server operators. The corresponding RID is DOMAIN_ALIAS_RID_SYSTEM_OPS.
"SU"	SDDL_SERVICE	Service logon user. This is a group identifier added to the token of a process when it was logged as a service. The corresponding logon type is LOGON32_LOGON_SERVICE. The corresponding RID is SECURITY_SERVICE_RID.
"SY"	SDDL_LOCAL_SYSTEM	Local system. The corresponding RID is SECURITY_LOCAL_SYSTEM_RID.
"WD"	SDDL_EVERYONE	Everyone. The corresponding RID is SECURITY_WORLD_RID.

 

The ConvertSidToStringSid and ConvertStringSidToSid functions always use the standard SID string notation and do not support SDDL SID string constants.

For more information about well-known SIDs, see Well-known SIDs.

Related topics

[MS-DTYP]: Security Descriptor Description Language