X509AsymmetricSecurityKey.DecryptKey(String, Byte[]) Method

Definition

Namespace:

System.IdentityModel.Tokens

Assembly:

System.IdentityModel.dll

Decrypts the specified encrypted key using the specified cryptographic algorithm.

public:
 override cli::array <System::Byte> ^ DecryptKey(System::String ^ algorithm, cli::array <System::Byte> ^ keyData);

public override byte[] DecryptKey (string algorithm, byte[] keyData);

override this.DecryptKey : string * byte[] -> byte[]

Public Overrides Function DecryptKey (algorithm As String, keyData As Byte()) As Byte()

Parameters

algorithm

String

The cryptographic algorithm to decrypt the key.

keyData

Byte[]

An array of Byte that contains the encrypted key.

Returns

Byte[]

An array of Byte that contains the decrypted key.

Exceptions

NotSupportedException

The X.509 certificate specified in the constructor does not have a private key.

-or-

The X.509 certificate has a private key, but it was not generated using the RSA algorithm.

-or-

The X.509 certificate has a private key, it was generated using the RSA algorithm, but the KeyExchangeAlgorithm property is null.

-or-

The algorithm parameter is not supported. The supported algorithms are XmlEncRSA15Url and XmlEncRSAOAEPUrl.

Remarks

Use the XmlEncRSA15Url or XmlEncRSAOAEPUrl fields to specify the algorithm.