Article
11/18/2011

SecuritySafeCriticalAttribute Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Identifies types or members as security-critical and safely accessible by transparent code.

Inheritance Hierarchy

System.Object
System.Attribute
System.Security.SecuritySafeCriticalAttribute

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

Syntax

'Declaration
<AttributeUsageAttribute(AttributeTargets.Class Or AttributeTargets.Struct Or AttributeTargets.Enum Or AttributeTargets.Constructor Or AttributeTargets.Method Or AttributeTargets.Field Or AttributeTargets.Interface Or AttributeTargets.Delegate, AllowMultiple := False,  _
    Inherited := False)> _
Public NotInheritable Class SecuritySafeCriticalAttribute _
    Inherits Attribute

[AttributeUsageAttribute(AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Enum|AttributeTargets.Constructor|AttributeTargets.Method|AttributeTargets.Field|AttributeTargets.Interface|AttributeTargets.Delegate, AllowMultiple = false, 
    Inherited = false)]
public sealed class SecuritySafeCriticalAttribute : Attribute

The SecuritySafeCriticalAttribute type exposes the following members.

Constructors

	Name	Description
	SecuritySafeCriticalAttribute	Initializes a new instance of the SecuritySafeCriticalAttribute class.

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Methods

	Name	Description
	Equals	Infrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Returns the hash code for this instance. (Inherited from Attribute.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	Match	When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Remarks

Types or members that are marked with the SecuritySafeCriticalAttribute attribute can be accessed by types and members that are marked with the SecurityTransparentAttribute attribute or that are security-transparent by default. Code that is marked with the SecuritySafeCriticalAttribute must ensure that all inputs and outputs to and from security-critical code comply with security requirements. This code is subjected to a rigorous security audit to ensure that it can be used safely in a secure execution environment. The SecuritySafeCriticalAttribute is ignored when it is applied in user assemblies, that is, in assemblies that are not installed with the Silverlight library assemblies and that are not signed with a specific strong-name key.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

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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