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CngKeyCreationParameters Class

Contains advanced properties for key creation.

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

[HostProtectionAttribute(SecurityAction.LinkDemand, MayLeakOnAbort = true)]
public sealed class CngKeyCreationParameters


The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: MayLeakOnAbort. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes.

CngKey objects contain properties. Some properties must be added to a key when it is created. Other properties can be added after the key is created.

The CngKeyCreationParameters class enables you to add properties to a key as it is being created. You can do this by passing a CngKeyCreationParameters object that contains standard key properties, such as key storage provider (KSP), export policy, key usage, user interface (UI) policy, and parent window handle, to the Create method. The CngKey object that is being created will be initialized with these values before it is finalized.

You can also add non-standard properties to a key by using the Parameters property.

If you need to add properties after a key is created, use the SetProperty method.


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows Server 2008 R2, Windows Server 2008

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