SecurityIdentifier Class

Reference

Definition

Namespace:: System.Security.Principal

Assembly:: System.Security.Principal.Windows.dll

Assembly:: mscorlib.dll

Package:: System.Security.Principal.Windows v5.0.0

Important

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Represents a security identifier (SID) and provides marshaling and comparison operations for SIDs.

public ref class SecurityIdentifier sealed : System::Security::Principal::IdentityReference, IComparable<System::Security::Principal::SecurityIdentifier ^>

public sealed class SecurityIdentifier : System.Security.Principal.IdentityReference, IComparable<System.Security.Principal.SecurityIdentifier>

[System.Runtime.InteropServices.ComVisible(false)]
public sealed class SecurityIdentifier : System.Security.Principal.IdentityReference, IComparable<System.Security.Principal.SecurityIdentifier>

type SecurityIdentifier = class
    inherit IdentityReference
    interface IComparable<SecurityIdentifier>

[<System.Runtime.InteropServices.ComVisible(false)>]
type SecurityIdentifier = class
    inherit IdentityReference
    interface IComparable<SecurityIdentifier>

Public NotInheritable Class SecurityIdentifier
Inherits IdentityReference
Implements IComparable(Of SecurityIdentifier)

Inheritance: Object

IdentityReference
SecurityIdentifier

Attributes: ComVisibleAttribute

Implements: IComparable<SecurityIdentifier>

Constructors

SecurityIdentifier(Byte[], Int32)	Initializes a new instance of the SecurityIdentifier class by using a specified binary representation of a security identifier (SID).
SecurityIdentifier(IntPtr)	Initializes a new instance of the SecurityIdentifier class by using a pointer to the binary form of a security identifier (SID).
SecurityIdentifier(String)	Initializes a new instance of the SecurityIdentifier class by using the specified security identifier (SID) in Security Descriptor Definition Language (SDDL) format.
SecurityIdentifier(WellKnownSidType, SecurityIdentifier)	Initializes a new instance of the SecurityIdentifier class by using the specified well known security identifier (SID) type and domain SID.

Fields

MaxBinaryLength	Returns the maximum size, in bytes, of the binary representation of the security identifier.
MinBinaryLength	Returns the minimum size, in bytes, of the binary representation of the security identifier.

Properties

AccountDomainSid	Returns the account domain security identifier (SID) portion from the SID represented by the SecurityIdentifier object if the SID represents a Windows account SID. If the SID does not represent a Windows account SID, this property returns `null`.
BinaryLength	Returns the length, in bytes, of the security identifier (SID) represented by the SecurityIdentifier object.
Value	Returns an uppercase Security Descriptor Definition Language (SDDL) string for the security identifier (SID) represented by this SecurityIdentifier object.

Methods

CompareTo(SecurityIdentifier)	Compares the current SecurityIdentifier object with the specified SecurityIdentifier object.
Equals(Object)	Returns a value that indicates whether this SecurityIdentifier object is equal to a specified object.
Equals(SecurityIdentifier)	Indicates whether the specified SecurityIdentifier object is equal to the current SecurityIdentifier object.
GetBinaryForm(Byte[], Int32)	Copies the binary representation of the specified security identifier (SID) represented by the SecurityIdentifier class to a byte array.
GetHashCode()	Serves as a hash function for the current SecurityIdentifier object. The GetHashCode() method is suitable for hashing algorithms and data structures like a hash table.
GetType()	Gets the Type of the current instance. (Inherited from Object)
IsAccountSid()	Returns a value that indicates whether the security identifier (SID) represented by this SecurityIdentifier object is a valid Windows account SID.
IsEqualDomainSid(SecurityIdentifier)	Returns a value that indicates whether the security identifier (SID) represented by this SecurityIdentifier object is from the same domain as the specified SID.
IsValidTargetType(Type)	Returns a value that indicates whether the specified type is a valid translation type for the SecurityIdentifier class.
IsWellKnown(WellKnownSidType)	Returns a value that indicates whether the SecurityIdentifier object matches the specified well known security identifier (SID) type.
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns the security identifier (SID), in Security Descriptor Definition Language (SDDL) format, for the account represented by the SecurityIdentifier object. An example of the SDDL format is S-1-5-9.
Translate(Type)	Translates the account name represented by the SecurityIdentifier object into another IdentityReference-derived type.

Operators

Equality(SecurityIdentifier, SecurityIdentifier)	Compares two SecurityIdentifier objects to determine whether they are equal. They are considered equal if they have the same canonical representation as the one returned by the Value property or if they are both `null`.
Inequality(SecurityIdentifier, SecurityIdentifier)	Compares two SecurityIdentifier objects to determine whether they are not equal. They are considered not equal if they have different canonical name representations than the one returned by the Value property or if one of the objects is `null` and the other is not.

Applies to

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