iaik.x509.extensions.priv

Class PublicServiceProvider

java.lang.Object

iaik.x509.V3Extension

iaik.x509.extensions.priv.PublicServiceProvider

public class PublicServiceProvider
extends V3Extension

This class implements the PublicServiceProvider Extension as used in Austria for institutions that provide some kind of public service. In this context this extension is called "Dienstleistereigenschaft" (see http://reference.e-government.gv.at, Spezifikationen/Konventionen).

The PublicServiceProvider extension is a private X509v3 extension, which shall be used in certificates of public service providers in Austria. It shall be marked as being not critical. Certificates containing the PublicServiceProvider extension are allowed to be used only for services/applications that are provided on behalf of a public authority. They cannot be used for private commercial purposes.

The object identifier for the PublicServiceProvider extension is derived from the gv-at OID as used for the Austria adminstration:

gv-at ::= OBJECT IDENTIFIER ::= { iso(1) member-body(2) austria(40) (0) (10) } id-PublicServiceProvider OBJECT IDENTIFIER ::= { gv-at organization(1) public(1) 2 }

which corresponds to the OID string "1.2.40.0.10.1.1.2".

The ASN.1 definition of the PublicServiceProvider extension is specified as follows:

 PublicServiceProvider ::= NULL
 

Since the PublicServiceProvider extension has no specific value (only is presence in a certificate is sufficient to recognize the certificate owner as provider of some public service) a PublicServiceProvider extension can be created by simply calling the default constructor:

 X509Certificate certificate = new X509Certificate();
  ...
 PublicServiceProvider serviceProvider = new PublicServiceProvider();
 certificate.addExtension(serviceProvider);
 

Use method getExtension for getting a PublicServiceProvider extension when parsing a certificate:

 X509Certificate cert = ...;
 ...
 // look if PublicServiceProvider extension is included:
 PublicServiceProvider serviceProvider = cert.getExtension(PublicServiceProvider.oid);
 if (serviceProvider != null) {
   ...
 }
 
 

See Also:

ObjectID, X509Certificate, X509Extensions, V3Extension

Field Summary

Fields

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

Fields inherited from class iaik.x509.V3Extension

critical

Constructor Summary

Constructors

Constructor and Description
PublicServiceProvider() Creates a new PublicServiceProvider extension.

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 PublicServiceProvider extension.
int	hashCode() Returns a hashcode for this identity.
void	init(ASN1Object asn1Object) Inits this PublicServiceProvider implementation with an ASN1Object representing the value of this extension.
ASN1Object	toASN1Object() Returns an ASN1Object representing the value of this PublicServiceProvider extension object.
java.lang.String	toString() Returns a string that represents the contents of this 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 PublicServiceProvider extension. The corresponding OID string is "1.2.40.0.10.1.1.2".

Constructor Detail

PublicServiceProvider

public PublicServiceProvider()

Creates a new PublicServiceProvider extension.

Method Detail

getObjectID

public ObjectID getObjectID()

Returns the object ID of this PublicServiceProvider extension.

Specified by:

getObjectID in class V3Extension

Returns:

The object ID ("1.2.40.0.10.1.1.2") of this extension.

init

public void init(ASN1Object asn1Object)
          throws X509ExtensionException

Inits this PublicServiceProvider implementation with an ASN1Object representing the value of this extension.

The given ASN1Object may be the one created by toASN1Object().

This method is used by the X509Extensions class when parsing the ASN.1 representation of a certificate for properly initializing an included PublicServiceProvider 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:

asn1Object - The PublicServiceProvider 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 PublicServiceProvider extension object.

The returned ASN1Object is either an ASN.1 NULL object:

 PublicServiceProvider ::= NULL
 

Specified by:

toASN1Object in class V3Extension

Returns:

The value of this PublicServiceProvider 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 extension. Since the PublicServiceProvider does not have a value, this method in any case returns an empty String ("").

Overrides:

toString in class java.lang.Object

Returns:

The string representation of this object.