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SymmetricAlgorithm.Key Property

Silverlight

Gets or sets the secret key for the symmetric algorithm.

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

public virtual byte[] Key { get; set; }

Property Value

Type: System.Byte[]
The secret key to use for the symmetric algorithm.

Exceptions

Exception	Condition
ArgumentNullException	An attempt was made to set the key to null.
CryptographicException	The key size is invalid.

Remarks

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 null when it is used, the GenerateKey method is called to create a new random value.

Version Information