System 2.0.0.0 4.0.0.0 System.Security.Cryptography.X509Certificates.X509Extension The class uses the flags in the enumeration to define or determine key usage.

Defines the usage of a key contained within an X.509 certificate. This class cannot be inherited.

Constructor 2.0.0.0 4.0.0.0 To be added.

Initializes a new instance of the class.

Constructor 2.0.0.0 4.0.0.0 Use this constructor if the information to create the extension is already in an object.

Initializes a new instance of the class using an object and a value that identifies whether the extension is critical.

The encoded data to use to create the extension. true if the extension is critical; otherwise, false. Constructor 2.0.0.0 4.0.0.0 To be added.

Initializes a new instance of the class using the specified value and a value that identifies whether the extension is critical.

One of the values that describes how to use the key. true if the extension is critical; otherwise, false. Method 2.0.0.0 4.0.0.0 System.Void To be added. To be added.

Initializes a new instance of the class using an object.

Property 2.0.0.0 4.0.0.0 System.Security.Cryptography.X509Certificates.X509KeyUsageFlags To be added. This property returns a value from the enumeration that indicates how to use the certificate key.

Gets the key usage flag associated with the certificate.