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.
| Property | Access type | Description |
|---|---|---|
| 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
| Requirement | Value |
|---|---|
| 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 |
|
See also