SecurityTokenHandler.ReadToken Method (String)

.NET Framework 4.5

When overridden in a derived class, deserializes the specified string to a token of the type processed by the derived class.

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

public virtual SecurityToken ReadToken(
	string tokenString


Type: System.String

The string to be deserialized.

Return Value

Type: System.IdentityModel.Tokens.SecurityToken
The security token that was deserialized from the specified string.

Security noteSecurity Note

Calling this method with untrusted data is a security risk. Call this method only with trusted data. For more information, see Untrusted Data Security Risks.

By default this method throws a NotImplementedException exception.

Override this method to provide functionality that can deserialize a security token from a string. If you override, this method, you should also override the SecurityTokenHandler.CanReadToken method.

.NET Framework

Supported in: 4.6, 4.5

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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