SecurityIdentifier Class
 

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

Namespace:   System.Security.Principal
Assembly:  mscorlib (in mscorlib.dll)

SystemObject
   System.Security.PrincipalIdentityReference
    System.Security.PrincipalSecurityIdentifier

[ComVisibleAttribute(false)]
public sealed class SecurityIdentifier : IdentityReference, IComparable<SecurityIdentifier>
[ComVisibleAttribute(false)]
public ref class SecurityIdentifier sealed : IdentityReference, 
	IComparable<SecurityIdentifier^>
[<Sealed>]
[<ComVisibleAttribute(false)>]
type SecurityIdentifier = 
    class
        inherit IdentityReference
        interface IComparable<SecurityIdentifier>
    end
<ComVisibleAttribute(False)>
Public NotInheritable Class SecurityIdentifier
	Inherits IdentityReference
	Implements IComparable(Of SecurityIdentifier)
NameDescription
System_CAPS_pubmethod SecurityIdentifier

Initializes a new instance of the SecurityIdentifier class by using a specified binary representation of a security identifier (SID).

System_CAPS_pubmethod SecurityIdentifier

Initializes a new instance of the SecurityIdentifier class by using an integer that represents the binary form of a security identifier (SID).

System_CAPS_pubmethod SecurityIdentifier

Initializes a new instance of the SecurityIdentifier class by using the specified security identifier (SID) in Security Descriptor Definition Language (SDDL) format.

System_CAPS_pubmethod SecurityIdentifier

Initializes a new instance of the SecurityIdentifier class by using the specified well known security identifier (SID) type and domain SID.

NameDescription
System_CAPS_pubproperty

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 ArgumentNullException.

System_CAPS_pubproperty

Returns the length, in bytes, of the security identifier (SID) represented by the SecurityIdentifier object.

System_CAPS_pubproperty

Returns an uppercase Security Descriptor Definition Language (SDDL) string for the security identifier (SID) represented by this SecurityIdentifier object.(Overrides .)

NameDescription
System_CAPS_pubmethod CompareTo

Compares the current SecurityIdentifier object with the specified SecurityIdentifier object.

System_CAPS_pubmethod Equals

Returns a value that indicates whether this SecurityIdentifier object is equal to a specified object.(Overrides IdentityReferenceEquals.)

System_CAPS_pubmethod Equals

Indicates whether the specified SecurityIdentifier object is equal to the current SecurityIdentifier object.

System_CAPS_pubmethod GetBinaryForm

Copies the binary representation of the specified security identifier (SID) represented by the SecurityIdentifier class to a byte array.

System_CAPS_pubmethod 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.(Overrides IdentityReferenceGetHashCode.)

System_CAPS_pubmethod GetType

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethod IsAccountSid

Returns a value that indicates whether the security identifier (SID) represented by this SecurityIdentifier object is a valid Windows account SID.

System_CAPS_pubmethod IsEqualDomainSid

Returns a value that indicates whether the security identifier (SID) represented by this SecurityIdentifier object is from the same domain as the specified SID.

System_CAPS_pubmethod IsValidTargetType

Returns a value that indicates whether the specified type is a valid translation type for the SecurityIdentifier class.(Overrides IdentityReferenceIsValidTargetType.)

System_CAPS_pubmethod IsWellKnown

Returns a value that indicates whether the SecurityIdentifier object matches the specified well known security identifier (SID) type.

System_CAPS_pubmethod 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. (Overrides IdentityReferenceToString.)

System_CAPS_pubmethod Translate

Translates the account name represented by the SecurityIdentifier object into another IdentityReference-derived type.(Overrides IdentityReferenceTranslate.)

NameDescription
System_CAPS_pubfield System_CAPS_static MaxBinaryLength

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

System_CAPS_pubfield System_CAPS_static MinBinaryLength

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

NameDescription
System_CAPS_puboperator System_CAPS_static Equality

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 property or if they are both null.

System_CAPS_puboperator System_CAPS_static Inequality

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 property or if one of the objects is null and the other is not.

.NET Framework
Available since 2.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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