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The IObjectId interface represents an object identifier (OID). OIDs are returned from numerous Certificate Enrollment API properties, and they can be used to initialize the following objects:
- IAlternativeName
- ICertificatePolicy
- ICryptAttribute
- ISmimeCapability
- IX509Attribute
- IX509AttributeArchiveKey
- IX509Extension
- IX509ExtensionEnhancedKeyUsage
- IX509ExtensionTemplate
All of the methods used to initialize an IObjectId object call the CryptoAPI CryptFindOIDInfo function which retrieves the first registered CRYPT_OID_INFO structure that matches the specified parameters. The function searches the registry and static memory on the local computer and Active Directory on the ___domain server. The CRYPT_OID_INFO structure is declared in Wincrypt.h and has the following signature.
Note You cannot use the CRYPT_OID_INFO structure directly in the Certificate Enrollment API.
Inheritance
The IObjectId interface inherits from the IDispatch interface. IObjectId also has these types of members:
Methods
The IObjectId interface has these methods.
| IObjectId::get_FriendlyName Specifies and retrieves a display name for the object identifier. (Get) |
| IObjectId::get_Name Retrieves a CERTENROLL_OBJECTID value that contains an object identifier. |
| IObjectId::get_Value Retrieves a string that contains the dotted decimal object identifier (OID). |
| IObjectId::GetAlgorithmName Retrieves the display name associated with an algorithm object identifier (OID). |
| IObjectId::InitializeFromAlgorithmName Initializes the object from an algorithm name or an object identifier. |
| IObjectId::InitializeFromName Initializes the object from a CERTENROLL_OBJECTID enumeration value. |
| IObjectId::InitializeFromValue Initializes the object from a string that contains a dotted decimal object identifier (OID). |
| IObjectId::put_FriendlyName Specifies and retrieves a display name for the object identifier. (Put) |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Target Platform | Windows |
| Header | certenroll.h |