System.Security
Microsoft.CSharp.RuntimeBinder
Microsoft.Devices
Microsoft.Devices.Radio
Microsoft.Devices.Sensors
Microsoft.Internal
Microsoft.Phone
Microsoft.Phone.Automation.Peers
Microsoft.Phone.BackgroundAudio
Microsoft.Phone.BackgroundTransfer
Microsoft.Phone.Controls
Microsoft.Phone.Controls.Primitives
Microsoft.Phone.Data.Linq
Microsoft.Phone.Data.Linq.Mapping
Microsoft.Phone.DeviceManufacturers
Microsoft.Phone.Globalization
Microsoft.Phone.Info
Microsoft.Phone.Maps
Microsoft.Phone.Maps.Controls
Microsoft.Phone.Maps.Services
Microsoft.Phone.Marketplace
Microsoft.Phone.Media
Microsoft.Phone.Net.NetworkInformation
Microsoft.Phone.Networking.Voip
Microsoft.Phone.NetworkOperators
Microsoft.Phone.Notification
Microsoft.Phone.Scheduler
Microsoft.Phone.SecureElement
Microsoft.Phone.Shell
Microsoft.Phone.Storage
Microsoft.Phone.Tasks
Microsoft.Phone.UserData
Microsoft.Phone.Wallet
Microsoft.Win32.SafeHandles
System
System.CodeDom.Compiler
System.Collections
System.Collections.Generic
System.Collections.ObjectModel
System.Collections.Specialized
System.ComponentModel
System.Configuration.Assemblies
System.Data
System.Data.Common
System.Data.Linq
System.Data.Linq.Mapping
System.Data.Linq.SqlClient
System.Device.Location
System.Diagnostics
System.Diagnostics.CodeAnalysis
System.Diagnostics.Contracts
System.Diagnostics.SymbolStore
System.Dynamic
System.Globalization
System.IO
System.IO.IsolatedStorage
System.Linq
System.Linq.Expressions
System.Net
System.Net.Browser
System.Net.NetworkInformation
System.Net.Sockets
System.Reflection
System.Reflection.Emit
System.Resources
System.Runtime
System.Runtime.CompilerServices
System.Runtime.ExceptionServices
System.Runtime.InteropServices
System.Runtime.InteropServices.Automation
System.Runtime.InteropServices.ComTypes
System.Runtime.InteropServices.WindowsRuntime
System.Runtime.Serialization
System.Runtime.Serialization.Json
System.Runtime.Versioning
System.Security
AllowPartiallyTrustedCallersAttribute Class
SecurityCriticalAttribute Class
SecurityException Class
SecuritySafeCriticalAttribute Class
SecurityState Class
SecurityTransparentAttribute Class
UnverifiableCodeAttribute Class
VerificationException Class
System.Security.Cryptography
System.Security.Cryptography.X509Certificates
System.Security.Permissions
System.Security.Principal
System.ServiceModel
System.ServiceModel.Channels
System.ServiceModel.Description
System.ServiceModel.Dispatcher
System.ServiceModel.Security
System.Text
System.Text.RegularExpressions
System.Threading
System.Threading.Tasks
System.Windows
System.Windows.Automation
System.Windows.Automation.Peers
System.Windows.Automation.Provider
System.Windows.Automation.Text
System.Windows.Controls
System.Windows.Controls.Primitives
System.Windows.Data
System.Windows.Documents
System.Windows.Ink
System.Windows.Input
System.Windows.Interop
System.Windows.Markup
System.Windows.Media
System.Windows.Media.Animation
System.Windows.Media.Effects
System.Windows.Media.Imaging
System.Windows.Media.Media3D
System.Windows.Navigation
System.Windows.Resources
System.Windows.Shapes
System.Windows.Threading
System.Xml
System.Xml.Linq
System.Xml.Schema
System.Xml.Serialization
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System.Security Namespace

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

The System.Security namespace provides the underlying structure of the common language runtime security system, including base classes for permissions.

  ClassDescription
Public classAllowPartiallyTrustedCallersAttributeInfrastructure. Allows an assembly to be called by partially trusted code. Without this declaration, only fully trusted callers are able to use the assembly. This class cannot be inherited.
Public classSecurityCriticalAttributeSpecifies that code or an assembly performs security-critical operations.
Public classSecurityExceptionThe exception that is thrown when a security error is detected.
Public classSecuritySafeCriticalAttributeIdentifies types or members as security-critical and safely accessible by transparent code.
Public classSecurityStateProvides a base class for requesting the security status of an action from the AppDomainManager object.
Public classSecurityTransparentAttributeSpecifies that an assembly cannot access protected resources or functionality.
Public classUnverifiableCodeAttributeMarks modules that contain unverifiable code. This class cannot be inherited.
Public classVerificationExceptionThe exception that is thrown when the security policy requires code to be type-safe, but the verification process is unable to verify that the code is type-safe.

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