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CspKeyContainerInfo.KeyNumber Property

Gets a value that describes whether an asymmetric key was created as a signature key or an exchange key.

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

public function get KeyNumber () : KeyNumber

Property Value

Type: System.Security.Cryptography.KeyNumber
One of the KeyNumber values that describes whether an asymmetric key was created as a signature key or an exchange key.

The value of the KeyNumber property is derived from the KeyNumber field of the CspParameters object that was used to initialize the CspKeyContainerInfo object.

An exchange key is an asymmetric key pair used to encrypt session keys so that they can be safely stored and exchanged with other users. The Exchange value specifies an exchange key. This value corresponds to the AT_KEYEXCHANGE value used in the unmanaged Microsoft Cryptographic API (CAPI).

A signature key is an asymmetric key pair used for authenticating (digitally signed) messages or files. The Signature value specifies a signature key. This value corresponds to the AT_SIGNATURE value used in CAPI.

The following code example creates a key container and retrieves information about that container.

No code example is currently available or this language may not be supported.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

.NET Compact Framework

Supported in: 3.5, 2.0
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