SqlColumnEncryptionCspProvider.DecryptColumnEncryptionKey Method

Definition

Namespace:

System.Data.SqlClient

Assembly:

System.Data.dll

Decrypts the given encrypted value using an asymmetric key specified by the key path and algorithm. The key path will be in the format of [ProviderName]/KeyIdentifier and should be an asymmetric key stored in the specified CSP provider. The valid algorithm used to encrypt/decrypt the CEK is 'RSA_OAEP'.

public:
 override cli::array <System::Byte> ^ DecryptColumnEncryptionKey(System::String ^ masterKeyPath, System::String ^ encryptionAlgorithm, cli::array <System::Byte> ^ encryptedColumnEncryptionKey);

public override byte[] DecryptColumnEncryptionKey (string masterKeyPath, string encryptionAlgorithm, byte[] encryptedColumnEncryptionKey);

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

Public Overrides Function DecryptColumnEncryptionKey (masterKeyPath As String, encryptionAlgorithm As String, encryptedColumnEncryptionKey As Byte()) As Byte()

Parameters

masterKeyPath

String

The master key path.

encryptionAlgorithm

String

The encryption algorithm.

encryptedColumnEncryptionKey

Byte[]

The encrypted column encryption key.

Returns

Byte[]

The decrypted column encryption key.