KeyNumber Enum

Reference

Definition

Namespace:: System.Security.Cryptography

Assemblies:: netstandard.dll, System.Security.Cryptography.dll

Assemblies:: netstandard.dll, System.Security.Cryptography.Csp.dll

Assemblies:: netstandard.dll, System.Security.Cryptography.dll, System.Security.Cryptography.Csp.dll

Assembly:: System.Security.Cryptography.Csp.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

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

public enum class KeyNumber

public enum KeyNumber

[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public enum KeyNumber

type KeyNumber =

[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Serializable>]
type KeyNumber =

Public Enum KeyNumber

Inheritance: Object

ValueType

Enum
KeyNumber

Attributes: ComVisibleAttribute SerializableAttribute

Fields

Name	Value	Description
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.

Applies to

Produkt	Versioner
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0, 2.1

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