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ExtendedKeyUsage

ExtendedKeyUsage object

[CAPICOM is a 32-bit only component that is available for use in the following operating systems: Windows Server 2008, Windows Vista, and Windows XP. Instead, use the X509EnhancedKeyUsageExtension Class in the System.Security.Cryptography.X509Certificates namespace.]

The ExtendedKeyUsage object provides read-only access to the extended key usage (EKU) properties of a certificate.

Members

The ExtendedKeyUsage object has these types of members:

Properties

The ExtendedKeyUsage object has these properties.

PropertyAccess typeDescription

EKUs

Read-only

EKUs collection that contains the EKU objects for the certificate.

IsCritical

Read-only

Retrieves a Boolean value that indicates whether the EKU extension is marked critical.

IsPresent

Read-only

Retrieves a Boolean value that indicates whether the EKU extension is present.

This is the default property.

 

Remarks

The ExtendedKeyUsage object cannot be created.

Requirements

End of client support

Windows Vista

End of server support

Windows Server 2008

Redistributable

CAPICOM 2.0 or later on Windows Server 2003 and Windows XP

DLL

Capicom.dll

See also

Cryptography Objects

 

 

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