iaik.x509.extensions.netscape

Class NetscapeSSLServerName

java.lang.Object

iaik.x509.V3Extension

iaik.x509.extensions.netscape.NetscapeSSLServerName

public class NetscapeSSLServerName
extends V3Extension

This class implements the NetscapeSSLServerName Extension, supported by Netscape Communicator 4.0, but not supported before Preliminary Navigator 3.0b5.

Each Netscape certificate extension is associated with a specific certificateExtension object identifier, derived from:

 netscape OBJECT IDENTIFIER ::= { 2 16 840 1 113730 }
 netscape-cert-extension OBJECT IDENTIFIER :: = { netscape 1 }
 

The object identifier for the NetscapeSSLServerName extension is defined as:

netscape-ssl-server-name OBJECT IDENTIFIER ::= { netscape-cert-extension 12 }

which corresponds to the OID string "2.16.840.1.113730.1.12".

The Netscape Certificate Specification specifies the NetscapeSSLServerName extension as IA5String "shell expression" that can be used to match the hostname of the SSL server that is using this certificate. It is recommended that if the server's hostname does not match this pattern the user be notified and given the option to terminate the SSL connection. If this extension is not present then the CommonName in the certificate subject's distinguished name is used for the same purpose.

You may specify a particular SSL server name directly when creating a NetscapeSSLServerName extension, or you may use the default constructor and supply the name by using the setSSLServerName method, e.g.:

 NetscapeSSLServerName netscapeSSLServerName = new NetscapeSSLServerName();
 netscapeSSLServerName.setSSLServerName("www.netscape.com");
 

Version:

File Revision 13

See Also:

V3Extension, X509Extensions

Field Summary

Fields

Modifier and Type	Field and Description
static ObjectID	oid The object ID of the X.509 extension NetscapeSSLServerName.

Fields inherited from class iaik.x509.V3Extension

critical

Constructor Summary

Constructors

Constructor and Description
NetscapeSSLServerName() Default constructor.
NetscapeSSLServerName(java.lang.String name) Constructs a NetscapeSSLServerName extension with a given SSLServer name.

Method Summary

Methods

Modifier and Type	Method and Description
ObjectID	getObjectID() Returns the object ID of this NetscapeSSLServerName extension
java.lang.String	getSSLServerName() Returns the SSL server name.
int	hashCode() Returns a hashcode for this identity.
void	init(ASN1Object obj) Inits this NetscapeSSLServerName implementation with an ASN1object representing the value of this extension.
void	setSSLServerName(java.lang.String name) Sets the SSL server name.
ASN1Object	toASN1Object() Returns an ASN1Object representing the value of this NetscapeSSLServerName extension object.
java.lang.String	toString() Returns a string that represents the contents of this NetscapeSSLServerName extension.

Methods inherited from class iaik.x509.V3Extension

getName, isCritical, setCritical

Methods inherited from class java.lang.Object

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

Field Detail

oid

public static final ObjectID oid

The object ID of the X.509 extension NetscapeSSLServerName.

Constructor Detail

NetscapeSSLServerName

public NetscapeSSLServerName()

Default constructor. Creates an empty NetscapeSSLServerName object.

Use the setSSLServerName method for specifying a particular (absolute or relative) name, e.g.:

 NetscapeSSLServerName netscapeSSLServerName = new NetscapeSSLServerName();
 netscapeSSLServerName.setSSLServerName("www.netscape.com");
 

NetscapeSSLServerName

public NetscapeSSLServerName(java.lang.String name)

Constructs a NetscapeSSLServerName extension with a given SSLServer name.

The SSL server name is given as a String value, for instance:

NetscapeSSLServerName netscapeSSLServerName = new NetscapeSSLServerName("www.netscape.com");

Parameters:

name - the hostname of the SSL server that is using this certificate, as String

Method Detail

getObjectID

public ObjectID getObjectID()

Returns the object ID of this NetscapeSSLServerName extension

Specified by:

getObjectID in class V3Extension

Returns:

the object ID

init

public void init(ASN1Object obj)

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

The given ASN1Object is the represents the IA5STRING hostname of the SSL server that is using this certificate.

The given ASN1Object is 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 NetscapeSSLServerName 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 NetscapeSSLServerName as ASN1Object

toASN1Object

public ASN1Object toASN1Object()

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

The returned ASN1Object represents the IA5STRING hostname of the SSL server.

Specified by:

toASN1Object in class V3Extension

Returns:

the value of this NetscapeSSLServerName as ASN1Object

setSSLServerName

public void setSSLServerName(java.lang.String name)

Sets the SSL server name.

The SSL server name is given as String, e.g.:

 NetscapeSSLServerName netscapeSSLServerName = new NetscapeSSLServerName();
 netscapeSSLServerName.setSSLServerName("www.netscape.com");
 

Parameters:

name - the hostname of the SSL server that is using this certificate, as String

getSSLServerName

public java.lang.String getSSLServerName()

Returns the SSL server name.

Returns:

the the hostname of the SSL server that is using this certificate, as String

See Also:

setSSLServerName(java.lang.String)

hashCode

public int hashCode()

Returns a hashcode for this identity.

Specified by:

hashCode in class V3Extension

Returns:

a hash code for this identity

toString

public java.lang.String toString()

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

Overrides:

toString in class java.lang.Object

Returns:

the string representation