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CngKeyCreationParameters.KeyUsage Property

Gets or sets the cryptographic operations that apply to the current key.

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

public Nullable<CngKeyUsages> KeyUsage { get; set; }

Property Value

Type: System.Nullable<CngKeyUsages>
A bitwise combination of one or more enumeration values that specify key usage. The default value is null, which indicates that the key storage provider's default key usage is set.

This property is used when you create a new CngKey object. It specifies the usages (such as encryption/decryption, signing/verification, and secret agreement generation) that will be enabled on the new key.

.NET Framework

Supported in: 4.5.3, 4, 3.5

.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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