SecurityTokenAuthenticator.ValidateToken Method (System.IdentityModel.Selectors)

MSDN Library
.NET Development
.NET Framework 3.5
.NET Framework Class Library
System.IdentityModel.Selectors Namespace
SecurityTokenAuthenticator Class
SecurityTokenAuthenticator Methods

CanValidateToken Method
CanValidateTokenCore Method

ValidateToken Method

ValidateTokenCore Method

SecurityTokenAuthenticator..::.ValidateToken Method
This page is specific to:.NET Framework Version:3.03.54.0

.NET Framework Class Library

SecurityTokenAuthenticator..::.ValidateToken Method

Authenticates the specified security token and returns the set of authorization policies for the security token.

Namespace: System.IdentityModel.Selectors
Assembly: System.IdentityModel (in System.IdentityModel.dll)

Syntax

C++

JScript

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'Usage

Dim instance As SecurityTokenAuthenticator
Dim token As SecurityToken
Dim returnValue As ReadOnlyCollection(Of IAuthorizationPolicy)

returnValue = instance.ValidateToken(token)

'Declaration

Public Function ValidateToken ( _
    token As SecurityToken _
) As ReadOnlyCollection(Of IAuthorizationPolicy)

Parameters

token: Type: System.IdentityModel.Tokens..::.SecurityToken
The SecurityToken to be validated.

Return Value

Type: System.Collections.ObjectModel..::.ReadOnlyCollection<(Of <(IAuthorizationPolicy>)>)
A ReadOnlyCollection<(Of <(T>)>) of type IAuthorizationPolicy that contains the set of authorization policies in effect for this application.

Exceptions

Exception	Condition
ArgumentNullException	token is nullNothingnullptra null reference (Nothing in Visual Basic).
SecurityTokenValidationException	token cannot be authenticated by this security token authenticator -or- token is not authenticated.

Exception

Condition

ArgumentNullException

token is nullNothingnullptra null reference (Nothing in Visual Basic).

SecurityTokenValidationException

token cannot be authenticated by this security token authenticator

-or-

token is not authenticated.

Remarks

The ValidateToken method checks whether the token parameter is nullNothingnullptra null reference (Nothing in Visual Basic), calls the CanValidateToken method to determine if this security token authenticator can authenticate this security token, and then if it can, calls the ValidateTokenCore method.

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.5, 3.0

Reference

SecurityTokenAuthenticator Class

SecurityTokenAuthenticator Members

System.IdentityModel.Selectors Namespace

CanValidateToken

ValidateTokenCore