iaik.x509.attr.extensions

Class NoRevAvail

java.lang.Object

iaik.x509.V3Extension

iaik.x509.attr.extensions.NoRevAvail

public class NoRevAvail
extends V3Extension

This class implements the NoRevAvail (No Revocation Info available) attribute certificate extension.

When included in an attribute certificate, the NoRevAvail extension MUST be marked as being not critical.

Each extension is associated with a specific certificateExtension object identifier. The OID for the NoRevAvail

 certificateExtension  OBJECT IDENTIFIER ::=
                            {joint-iso-ccitt(2) ds(5) 29}
 id-ce                 OBJECT IDENTIFIER ::=  certificateExtension
 
 id-ce-noRevAvail OBJECT IDENTIFIER ::= { id-ce 56 }
 

which corresponds to the OID string "2.5.29.56".

The X.509 Attribute Certificate profile presented in RFC 5755 specifies the NoRevAvail ("No Revocation Available") extension to maybe included into an attribute certificate to indicate that no revocation info will be made available for this AC.
Since only the precense of a NoRevAvail extension in an AC is already meaningful value of the NoRevAvail extension is specified as ASN.1 NULL (see RFC 5755 for more information):

 NoRevAvail ::= NULL
 

For adding an NoRevAvail extension object to an AttributeCertificate, use the addExtension method of class iaik.x509.attr.AttributeCertificate, e.g.:

 NoRevAvail noRevAvail = new NoRevAvail();
 AttributeCertificate ac = new AttributeCertificate();
   ...
 ac.addExtension(noRevAvail);
 

On the receiving end use method getExtension method of the iaik.x509.attr.AttributeCertificate to get an NoRevAvail extension -- if included -- from an Attribute Certificate, e.g.:

 // the AttributeCertificate:
 AttributeCertificate ac = ...;
 ...
 // query for NoRevAvail extension:
 NoRevAvail noRevAvail = (NoRevAvail)ac.getExtension(NoRevAvail.oid);
 if (noRevAvail != null) {
   // no revocation check has to be done
 } 
 

Version:

File Revision 4

See Also:

NULL, V3Extension, AttributeCertificate

Field Summary

Fields

Modifier and Type	Field and Description
static ObjectID	oid The object identifier of this NoRevAvail extension.

Fields inherited from class iaik.x509.V3Extension

critical

Constructor Summary

Constructors

Constructor and Description
NoRevAvail() Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object otherObject) Compares this object with the given one.
ObjectID	getObjectID() Returns the object ID of this NoRevAvail extension
int	hashCode() Returns a hashcode for this identity.
void	init(ASN1Object obj) Inits this NoRevAvail implementation with an ASN1object representing the value of this extension.
ASN1Object	toASN1Object() Returns an ASN1Object representing the value of this NoRevAvail extension object.
java.lang.String	toString() Returns a string that represents the contents of this NoRevAvail extension.

Methods inherited from class iaik.x509.V3Extension

getName, isCritical, setCritical

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

oid

public static final ObjectID oid

The object identifier of this NoRevAvail extension. The corresponding OID string is "2.5.29.56".

Constructor Detail

NoRevAvail

public NoRevAvail()

Default constructor. Creates a new NoRevAvail object.

Method Detail

getObjectID

public ObjectID getObjectID()

Returns the object ID of this NoRevAvail extension

Specified by:

getObjectID in class V3Extension

Returns:

the object ID

init

public void init(ASN1Object obj)
          throws X509ExtensionException

Inits this NoRevAvail implementation with an ASN1object representing the value of this extension.

When parsing the ASN.1 representation of an attribute certificate this method is used for properly initializing an included NoRevAvail extension. This method initializes the extension only with its value, but not with its critical specification. For that reason, this method shall not be explicitly called by an application.

Specified by:

init in class V3Extension

Parameters:

obj - the NoRevAvail extension value as ASN1Object (NULL)

Throws:

X509ExtensionException - If the extension value is not an ASN.1 NULL object

toASN1Object

public ASN1Object toASN1Object()

Returns an ASN1Object representing the value of this NoRevAvail extension object.

The returned ASN1Object is an ASN.1 NULL object:

 NoRevAvail ::= NULL
 

Specified by:

toASN1Object in class V3Extension

Returns:

the value of this NoRevAvail as ASN1Object (NULL)

hashCode

public int hashCode()

Returns a hashcode for this identity.

Specified by:

hashCode in class V3Extension

Returns:

a hash code for this identity

equals

public boolean equals(java.lang.Object otherObject)

Compares this object with the given one.

Overrides:

equals in class java.lang.Object

Parameters:

otherObject - the other object to compare with.

Returns:

true, if this object is equal to the other object, false otherwise.

toString

public java.lang.String toString()

Returns a string that represents the contents of this NoRevAvail extension.

Overrides:

toString in class java.lang.Object

Returns:

"null" since this extension has ASN.1 NULL as value