KeyNumber Enum

Definition

Namespace:

System.Security.Cryptography

Assembly:

System.Security.Cryptography.dll

Specifies whether to create an asymmetric signature key or an asymmetric exchange key.

public enum class KeyNumber

public enum KeyNumber

type KeyNumber = 

Public Enum KeyNumber

Inheritance

Object

ValueType

Enum

KeyNumber

Fields

Exchange	1	An exchange key pair used to encrypt session keys so that they can be safely stored and exchanged with other users. This value corresponds to the AT_KEYEXCHANGE value used in the unmanaged Microsoft Cryptographic API (CAPI).
Signature	2	A signature key pair used for authenticating digitally signed messages or files. This value corresponds to the AT_SIGNATURE value used in the unmanaged Microsoft Cryptographic API (CAPI).

Examples

The following code example demonstrates how to use the KeyNumber enumeration to specify a key type for an RSACryptoServiceProvider object.

// Create a new CspParameters object.
CspParameters^ cspParams = gcnew CspParameters();

// Specify an exchange key.
cspParams->KeyNumber = (int) KeyNumber::Exchange;

// Initialize the RSACryptoServiceProvider
// with the CspParameters object.
RSACryptoServiceProvider^ RSACSP = gcnew RSACryptoServiceProvider(cspParams);

// Create a new CspParameters object.
CspParameters cspParams = new CspParameters();

// Specify an exchange key.
cspParams.KeyNumber = (int) KeyNumber.Exchange;

// Initialize the RSACryptoServiceProvider
// with the CspParameters object.
RSACryptoServiceProvider RSACSP = new RSACryptoServiceProvider(cspParams);

' Create a new CspParameters object.
Dim cspParams As New CspParameters()

' Specify an exchange key.
cspParams.KeyNumber = Fix(KeyNumber.Exchange)

' Initialize the RSACryptoServiceProvider  
' with the CspParameters object.
Dim RSACSP As New RSACryptoServiceProvider(cspParams)

Remarks

Use the KeyNumber enumeration with the CspKeyContainerInfo.KeyNumber property to inspect a key type or with the CspParameters.KeyNumber field to specify a key type.