com.ibm.security12.sun.security.x509
Class SubjectAlternativeNameExtension

java.lang.Object
  |
  +--com.ibm.security12.sun.security.x509.Extension
        |
        +--com.ibm.security12.sun.security.x509.SubjectAlternativeNameExtension

public class SubjectAlternativeNameExtension
extends Extension
implements CertAttrSet

This represents the Subject Alternative Name Extension. This extension, if present, allows the subject to specify multiple alternative names.

Extensions are represented as a sequence of the extension identifier (Object Identifier), a boolean flag stating whether the extension is to be treated as being critical and the extension value itself (this is again a DER encoding of the extension value).

The ASN.1 syntax for this is:

 SubjectAltName ::= GeneralNames
 GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName
 

Version:
1.12
Author:
Amit Kapoor, Hemma Prafullchandra
See Also:
Extension, CertAttrSet

Field Summary
static String IDENT
          Identifier for this attribute, to be used with the get, set, delete methods of Certificate, x509 type.
static String NAME
          Attribute names.
static String SUBJECT_NAME
           
 
Fields inherited from class com.ibm.security12.sun.security.x509.Extension
critical, extensionId, extensionValue
 
Constructor Summary
SubjectAlternativeNameExtension()
          Create a default SubjectAlternativeNameExtension.
SubjectAlternativeNameExtension(Boolean critical, Object value)
          Create the extension from the passed DER encoded value.
SubjectAlternativeNameExtension(GeneralNames names)
          Create a SubjectAlternativeNameExtension with the passed GeneralNames.
 
Method Summary
 void decode(InputStream in)
          Decode the extension from the InputStream.
 void delete(String name)
          Delete the attribute value.
 void encode(OutputStream out)
          Write the extension to the OutputStream.
 Object get(String name)
          Get the attribute value.
 Enumeration getElements()
          Return an enumeration of names of attributes existing within this attribute.
 String getName()
          Return the name of this attribute.
 void set(String name, Object obj)
          Set the attribute value.
 String toString()
          Returns a printable representation of the SubjectAlternativeName.
 
Methods inherited from class com.ibm.security12.sun.security.x509.Extension
encode, equals, getExtensionId, getExtensionValue, hashCode, isCritical
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

IDENT

public static final String IDENT
Identifier for this attribute, to be used with the get, set, delete methods of Certificate, x509 type.

NAME

public static final String NAME
Attribute names.

SUBJECT_NAME

public static final String SUBJECT_NAME
Constructor Detail

SubjectAlternativeNameExtension

public SubjectAlternativeNameExtension(GeneralNames names)
                                throws IOException
Create a SubjectAlternativeNameExtension with the passed GeneralNames.
Parameters:
names - the GeneralNames for the subject.
Throws:
IOException - on error.

SubjectAlternativeNameExtension

public SubjectAlternativeNameExtension()
Create a default SubjectAlternativeNameExtension.

SubjectAlternativeNameExtension

public SubjectAlternativeNameExtension(Boolean critical,
                                       Object value)
                                throws IOException
Create the extension from the passed DER encoded value.
Parameters:
critical - true if the extension is to be treated as critical.
value - Array of DER encoded bytes of the actual value.
Throws:
IOException - on error.
Method Detail

toString

public String toString()
Returns a printable representation of the SubjectAlternativeName.
Specified by:
toString in interface CertAttrSet
Overrides:
toString in class Extension

decode

public void decode(InputStream in)
            throws IOException
Decode the extension from the InputStream.
Specified by:
decode in interface CertAttrSet
Parameters:
in - the InputStream to unmarshal the contents from.
Throws:
IOException - on decoding or validity errors.

encode

public void encode(OutputStream out)
            throws IOException
Write the extension to the OutputStream.
Specified by:
encode in interface CertAttrSet
Parameters:
out - the OutputStream to write the extension to.
Throws:
IOException - on encoding errors.

set

public void set(String name,
                Object obj)
         throws IOException
Set the attribute value.
Specified by:
set in interface CertAttrSet

get

public Object get(String name)
           throws IOException
Get the attribute value.
Specified by:
get in interface CertAttrSet

delete

public void delete(String name)
            throws IOException
Delete the attribute value.
Specified by:
delete in interface CertAttrSet

getElements

public Enumeration getElements()
Return an enumeration of names of attributes existing within this attribute.
Specified by:
getElements in interface CertAttrSet

getName

public String getName()
Return the name of this attribute.
Specified by:
getName in interface CertAttrSet