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SymmetricAlgorithm.Key Property

Gets or sets the secret key for the symmetric algorithm.

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

public:
virtual property array<unsigned char>^ Key {
	array<unsigned char>^ get ();
	void set (array<unsigned char>^ value);
}
/** @property */
public byte[] get_Key ()

/** @property */
public void set_Key (byte[] value)

public function get Key () : byte[]

public function set Key (value : byte[])

Property Value

The secret key to use for the symmetric algorithm.

Exception typeCondition

ArgumentNullException

An attempt was made to set the key to a null reference (Nothing in Visual Basic).

The secret key is used both for encryption and for decryption. For a symmetric algorithm to be successful, the secret key must be known only to the sender and the receiver. The valid key sizes are specified by the particular symmetric algorithm implementation and are listed in the LegalKeySizes property.

If this property is a null reference (Nothing in Visual Basic) when it is used, the GenerateKey method is called to create a new random value.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0

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