Article
11/18/2011

RSAOAEPKeyExchangeFormatter Class

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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
	RSAOAEPKeyExchangeFormatter()	Initializes a new instance of the RSAOAEPKeyExchangeFormatter class.
	RSAOAEPKeyExchangeFormatter(AsymmetricAlgorithm)	Initializes a new instance of the RSAOAEPKeyExchangeFormatter class with the specified key.

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Properties

	Name	Description
	Parameter	Infrastructure. Gets or sets the parameter used to create padding in the key exchange creation process.
	Parameters	Infrastructure. Gets the parameters for the Optimal Asymmetric Encryption Padding (OAEP) key exchange. (Overrides AsymmetricKeyExchangeFormatter.Parameters.)
	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
	CreateKeyExchange(array<Byte[])	Creates the encrypted key exchange data from the specified input data. (Overrides AsymmetricKeyExchangeFormatter.CreateKeyExchange(array<Byte[]).)
	CreateKeyExchange(array<Byte[], Type)	Creates the encrypted key exchange data from the specified input data. (Overrides AsymmetricKeyExchangeFormatter.CreateKeyExchange(array<Byte[], Type).)
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	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.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	SetKey	Sets the public key to use for encrypting the key exchange data. (Overrides AsymmetricKeyExchangeFormatter.SetKey(AsymmetricAlgorithm).)
	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:
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.

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