All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class netscape.security.x509.SubjectKeyIdentifierExtension

netscape.security.x509.Extension
   |
   +----netscape.security.x509.SubjectKeyIdentifierExtension

public class SubjectKeyIdentifierExtension
extends Extension
implements CertAttrSet
Represent the Subject Key Identifier Extension. This extension, if present, provides a means of identifying the particular public key used in an application. This extension by default is marked non-critical.

Extensions are addiitonal attributes which can be inserted in a X509 v3 certificate. For example a "Driving License Certificate" could have the driving license number as a extension.

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).

See Also:
Extension, CertAttrSet

Variable Index

 o IDENT
Identifier for this attribute, to be used with the get, set, delete methods of Certificate, x509 type.
 o KEY_ID
 o NAME
Attribute names.

Constructor Index

 o SubjectKeyIdentifierExtension(Boolean, Object)
Create the extension from the passed DER encoded value.
 o SubjectKeyIdentifierExtension(byte[])
Create a SubjectKeyIdentifierExtension with the passed octet string.

Method Index

 o decode(InputStream)
Decode the extension from the InputStream.
 o delete(String)
Delete the attribute value.
 o encode(OutputStream)
Write the extension to the OutputStream.
 o get(String)
Get the attribute value.
 o getElements()
Return an enumeration of names of attributes existing within this attribute.
 o getName()
Return the name of this attribute.
 o set(String, Object)
Set the attribute value.
 o toString()
Returns a printable representation.

Variables

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

 o NAME
 public static final String NAME
Attribute names.

 o KEY_ID
 public static final String KEY_ID

Constructors

 o SubjectKeyIdentifierExtension
 public SubjectKeyIdentifierExtension(byte octetString[]) throws IOException
Create a SubjectKeyIdentifierExtension with the passed octet string. The criticality is set to False.

Parameters:
octetString - the octet string identifying the key identifier.
 o SubjectKeyIdentifierExtension
 public SubjectKeyIdentifierExtension(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.

Methods

 o toString
 public String toString()
Returns a printable representation.

Overrides:
toString in class Extension
 o encode
 public void encode(OutputStream out) throws IOException
Write the extension to the OutputStream.

Parameters:
out - the OutputStream to write the extension to.
Throws: IOException
on encoding errors.
 o decode
 public void decode(InputStream in) throws IOException
Decode the extension from the InputStream.

Parameters:
in - the InputStream to unmarshal the contents from.
Throws: IOException
on decoding or validity errors.
 o set
 public void set(String name,
                 Object obj) throws IOException
Set the attribute value.

 o get
 public Object get(String name) throws IOException
Get the attribute value.

 o delete
 public void delete(String name) throws IOException
Delete the attribute value.

 o getElements
 public Enumeration getElements()
Return an enumeration of names of attributes existing within this attribute.

 o getName
 public String getName()
Return the name of this attribute.


All Packages  Class Hierarchy  This Package  Previous  Next  Index