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RSAOAEPKeyExchangeFormatter Class

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

Creates Optimal Asymmetric Encryption Padding (OAEP) key exchange data using RSA.

Inheritance Hierarchy

System.Object
  System.Security.Cryptography.AsymmetricKeyExchangeFormatter
    System.Security.Cryptography.RSAOAEPKeyExchangeFormatter

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

Syntax

'Declaration
<ComVisibleAttribute(True)> _
Public Class RSAOAEPKeyExchangeFormatter _
    Inherits AsymmetricKeyExchangeFormatter
[ComVisibleAttribute(true)]
public class RSAOAEPKeyExchangeFormatter : AsymmetricKeyExchangeFormatter

The RSAOAEPKeyExchangeFormatter type exposes the following members.

Constructors

  Name Description
Public methodSupported by Silverlight for Windows Phone RSAOAEPKeyExchangeFormatter() Initializes a new instance of the RSAOAEPKeyExchangeFormatter class.
Public methodSupported by Silverlight for Windows Phone RSAOAEPKeyExchangeFormatter(AsymmetricAlgorithm) Initializes a new instance of the RSAOAEPKeyExchangeFormatter class with the specified key.

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Properties

  Name Description
Public propertySupported by Silverlight for Windows Phone Parameter Infrastructure. Gets or sets the parameter used to create padding in the key exchange creation process.
Public propertySupported by Silverlight for Windows Phone Parameters Infrastructure. Gets the parameters for the Optimal Asymmetric Encryption Padding (OAEP) key exchange. (Overrides AsymmetricKeyExchangeFormatter.Parameters.)
Public propertySupported by Silverlight for Windows Phone Rng Gets or sets the random number generator algorithm to use in the creation of the key exchange.

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Methods

  Name Description
Public methodSupported by Silverlight for Windows Phone CreateKeyExchange(array<Byte[]) Creates the encrypted key exchange data from the specified input data. (Overrides AsymmetricKeyExchangeFormatter.CreateKeyExchange(array<Byte[]).)
Public methodSupported by Silverlight for Windows Phone CreateKeyExchange(array<Byte[], Type) Creates the encrypted key exchange data from the specified input data. (Overrides AsymmetricKeyExchangeFormatter.CreateKeyExchange(array<Byte[], Type).)
Public methodSupported by Silverlight for Windows Phone Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodSupported by Silverlight for Windows Phone 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.)
Public methodSupported by Silverlight for Windows Phone GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone GetType Gets the Type of the current instance. (Inherited from Object.)
Protected methodSupported by Silverlight for Windows Phone MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone SetKey Sets the public key to use for encrypting the key exchange data. (Overrides AsymmetricKeyExchangeFormatter.SetKey(AsymmetricAlgorithm).)
Public methodSupported by Silverlight for Windows Phone ToString Returns a string that represents the current object. (Inherited from Object.)

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Remarks

Key exchange allows a sender to create secret information, for example, random data that can be used as a key in a symmetric encryption algorithm, and use encryption to send it to the intended recipient.

Use RSAOAEPKeyExchangeDeformatter to receive the key exchange and extract the secret information from it.

Caution noteCaution:

It is highly recommended that you not attempt to create your own key exchange method from the basic functionality provided, because many details of the operation must be performed carefully in order for the key exchange to be successful.

Version Information

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1

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.