ICryptAttribute interface

The ICryptAttribute interface represents a cryptographic attribute in a certificate request. A collection of these attributes is contained in the CertificateRequestInfo structure of a PKCS #10 request as shown by the following example syntax.

CertificationRequestInfo ::= SEQUENCE 
   version                 CertificationRequestInfoVersion,
   subject                 ANY, 
   subjectPublicKeyInfo    SubjectPublicKeyInfo,
   attributes              [0] IMPLICIT Attributes

Attributes ::= SET OF Attribute

Attribute ::= SEQUENCE 
   type       EncodedObjectID,
   values     AttributeSetValue

AttributeSetValue ::= SET OF ANY
A single ICryptAttribute object corresponds to the attributes collection in the request. The ICryptAttribute object in turn contains a collection of IX509Attribute objects. Each attribute in this collection contains an object identifier and one or more values. Each value is an encoded Abstract Syntax Notation One (ASN.1) structure. Zero or more of the following objects can be included in the collection:


The ICryptAttribute interface has these methods.

Method Description
ICryptAttribute::get_ObjectId Retrieves the object identifier (OID) for the attribute.
ICryptAttribute::get_Values Retrieves an IX509Attributes object that contains a collection of attributes.
ICryptAttribute::InitializeFromObjectId Initializes a cryptographic attribute by using an object identifier.
ICryptAttribute::InitializeFromValues Initializes a cryptographic attribute by using an IX509Attributes object.


Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2008 [desktop apps only]
Target Platform Windows
Header certenroll.h

See Also