org.mozilla.jss.netscape.security.x509

Class AuthorityKeyIdentifierExtension

java.lang.Object

org.mozilla.jss.netscape.security.x509.Extension

org.mozilla.jss.netscape.security.x509.AuthorityKeyIdentifierExtension

All Implemented Interfaces:

java.io.Serializable, CertAttrSet

public class AuthorityKeyIdentifierExtension
extends Extension
implements CertAttrSet

This class represents the Authority Key Identifier Extension.

The authority key identifier extension provides a means of identifying the particular public key used to sign a certificate. This extension would be used where an issuer has multiple signing keys (either due to multiple concurrent key pairs or due to changeover).

The ASN.1 syntax for this is:

 AuthorityKeyIdentifier ::= SEQUENCE {
    keyIdentifier             [0] KeyIdentifier           OPTIONAL,
    authorityCertIssuer       [1] GeneralNames            OPTIONAL,
    authorityCertSerialNumber [2] CertificateSerialNumber OPTIONAL
 }
 KeyIdentifier ::= OCTET STRING
 

See Also:

Extension, CertAttrSet, Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	AUTH_NAME
static java.lang.String	IDENT Identifier for this attribute, to be used with the get, set, delete methods of Certificate, x509 type.
static java.lang.String	KEY_ID
static java.lang.String	NAME Attribute names.
static java.lang.String	SERIAL_NUMBER

Fields inherited from class org.mozilla.jss.netscape.security.x509.Extension

critical, extensionId, extensionValue

Constructor Summary

Constructors

Constructor and Description
AuthorityKeyIdentifierExtension(boolean critical, KeyIdentifier kid, GeneralNames name, SerialNumber sn) Exposed critical parameter. 99/11/03
AuthorityKeyIdentifierExtension(java.lang.Boolean critical, java.lang.Object value) Create the extension from the passed DER encoded value of the same.
AuthorityKeyIdentifierExtension(KeyIdentifier kid, GeneralNames name, SerialNumber sn) The default constructor for this extension.

Method Summary

Modifier and Type	Method and Description
void	decode(java.io.InputStream in) Decode the extension from the InputStream.
void	delete(java.lang.String name) Delete the attribute value.
void	encode(java.io.OutputStream out) Write the extension to the OutputStream.
java.lang.Object	get(java.lang.String name) Get the attribute value.
java.util.Enumeration<java.lang.String>	getAttributeNames() Return an enumeration of names of attributes existing within this attribute.
java.lang.String	getName() Return the name of this attribute.
void	set(java.lang.String name, java.lang.Object obj) Set the attribute value.
java.lang.String	toString() Return the object as a string.

Methods inherited from class org.mozilla.jss.netscape.security.x509.Extension

clearValue, encode, getExtensionId, getExtensionValue, isCritical, setCritical, setExtensionId, setExtensionValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

IDENT

public static final java.lang.String IDENT

Identifier for this attribute, to be used with the get, set, delete methods of Certificate, x509 type.

See Also:

Constant Field Values

NAME

public static final java.lang.String NAME

Attribute names.

See Also:

Constant Field Values

KEY_ID

public static final java.lang.String KEY_ID

See Also:

Constant Field Values

AUTH_NAME

public static final java.lang.String AUTH_NAME

See Also:

Constant Field Values

SERIAL_NUMBER

public static final java.lang.String SERIAL_NUMBER

See Also:

Constant Field Values

Constructor Detail

AuthorityKeyIdentifierExtension

public AuthorityKeyIdentifierExtension(boolean critical,
                                       KeyIdentifier kid,
                                       GeneralNames name,
                                       SerialNumber sn)
                                throws java.io.IOException

Exposed critical parameter. 99/11/03

Throws:

java.io.IOException

AuthorityKeyIdentifierExtension

public AuthorityKeyIdentifierExtension(KeyIdentifier kid,
                                       GeneralNames name,
                                       SerialNumber sn)
                                throws java.io.IOException

The default constructor for this extension. Null parameters make the element optional (not present).

Parameters:

kid - the KeyIdentifier associated with this extension.

name - the GeneralNames associated with this extension

sn - the CertificateSerialNumber associated with this extension.

Throws:

java.io.IOException - on error.

AuthorityKeyIdentifierExtension

public AuthorityKeyIdentifierExtension(java.lang.Boolean critical,
                                       java.lang.Object value)
                                throws java.io.IOException

Create the extension from the passed DER encoded value of the same.

Parameters:

critical - true if the extension is to be treated as critical.

value - Array of DER encoded bytes of the actual value.

Throws:

java.io.IOException - on error.

Method Detail

toString

public java.lang.String toString()

Return the object as a string.

Specified by:

toString in interface CertAttrSet

Overrides:

toString in class Extension

Returns:

value of this certificate attribute in printable form.

decode

public void decode(java.io.InputStream in)
            throws java.io.IOException

Decode the extension from the InputStream.

Specified by:

decode in interface CertAttrSet

Parameters:

in - the InputStream to unmarshal the contents from.

Throws:

java.io.IOException - on decoding or validity errors.

encode

public void encode(java.io.OutputStream out)
            throws java.io.IOException

Write the extension to the OutputStream.

Specified by:

encode in interface CertAttrSet

Parameters:

out - the OutputStream to write the extension to.

Throws:

java.io.IOException - on error.

set

public void set(java.lang.String name,
                java.lang.Object obj)
         throws java.io.IOException

Set the attribute value.

Specified by:

set in interface CertAttrSet

Parameters:

name - the name of the attribute (e.g. "x509.info.key")

obj - the attribute object.

Throws:

java.io.IOException - on other errors.

get

public java.lang.Object get(java.lang.String name)
                     throws java.io.IOException

Get the attribute value.

Specified by:

get in interface CertAttrSet

Parameters:

name - the name of the attribute to return.

Throws:

java.io.IOException - on other errors.

delete

public void delete(java.lang.String name)
            throws java.io.IOException

Delete the attribute value.

Specified by:

delete in interface CertAttrSet

Parameters:

name - the name of the attribute to delete.

Throws:

java.io.IOException - on other errors.

getAttributeNames

public java.util.Enumeration<java.lang.String> getAttributeNames()

Return an enumeration of names of attributes existing within this attribute.

Specified by:

getAttributeNames in interface CertAttrSet

Returns:

an enumeration of the attribute names.

getName

public java.lang.String getName()

Return the name of this attribute.

Specified by:

getName in interface CertAttrSet

Returns:

the name of this CertAttrSet.