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DES.Key Property

Gets or sets the secret key for the Data Encryption Standard (DES) algorithm.

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

abstract Key : byte[] with get, set 
override Key : byte[] with get, set

Property Value

Type: System.Byte[]
The secret key for the DES algorithm.

ExceptionCondition
ArgumentNullException

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

ArgumentException

An attempt was made to set a key whose length is not equal to BlockSizeValue.

CryptographicException

An attempt was made to set a weak key (see IsWeakKey) or a semi-weak key (see IsSemiWeakKey).

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

The length of the key must be equal to BlockSizeValue.

This algorithm supports a key length of 64 bits.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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