wtanaka.praya.gale
Class EncryptedFragment

java.lang.Object
  |
  +--wtanaka.praya.gale.AbstractFragment
        |
        +--wtanaka.praya.gale.EncryptedFragment

All Implemented Interfaces:

FragmentInterface

public class EncryptedFragment

extends AbstractFragment

Represents an encrypted fragment.

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Version:

$Name: $ $Date: 2001/09/30 21:14:52 $

Author:

$Author: wtanaka $

Field Summary

private byte[]	m_encryptedData
private FragmentList	m_fragmentList
private byte[]	m_iv
private java.util.Hashtable	m_keys Table mapping String (key name) into byte[] (key data)
private static int	MAGIC_VER_1
private static int	MAGIC_VER_2
private static int	MAX_ENCRYPTED_KEY_LEN

Fields inherited from class wtanaka.praya.gale.AbstractFragment

m_fragmentName

Fields inherited from interface wtanaka.praya.gale.FragmentInterface

BODY, CLASS, ENCRYPTED, INSTANCE, KEY_MEMBER, KEY_REDIRECT, NWO_KEY, NWO_KEY_REQUEST, NWO_RECEIPT, NWO_RECEIPT_REQ, OWO_KEY, OWO_KEY_REQUEST, OWO_RECEIPT, OWO_RECEIPT_REQ, PRESENCE, SENDER, SIGNATURE, TIME

Constructor Summary

EncryptedFragment(FragmentList listToEncrypt, GalePublicKey[] publ)
Convenience Constructor

EncryptedFragment(java.lang.String fragmentName, byte[] fragmentData)

EncryptedFragment(java.lang.String fragmentName, FragmentList listToEncrypt, GalePublicKey[] publ)
Encrypts the given fragment list with the given private key.

Method Summary

private byte[]	decrypt(byte[] ekey, GalePrivateKey privateKey)
void	decryptFragmentList()
FragmentList	getFragmentList()
int	getStreamLength()
FragmentType	getType()
java.util.Enumeration	targetIDs()
java.lang.String	toString()
java.lang.String	toString(int indentLevel)
void	write(GaleOutputStream out) Writes this EncryptedFragment to the given output stream, locking it with synchronized (out)

Methods inherited from class wtanaka.praya.gale.AbstractFragment

getFragmentName

Methods inherited from class java.lang.Object

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

Field Detail

MAX_ENCRYPTED_KEY_LEN

private static final int MAX_ENCRYPTED_KEY_LEN

m_iv

private byte[] m_iv

m_keys

private java.util.Hashtable m_keys

Table mapping String (key name) into byte[] (key data)

m_encryptedData

private byte[] m_encryptedData

m_fragmentList

private FragmentList m_fragmentList

MAGIC_VER_1

private static final int MAGIC_VER_1

MAGIC_VER_2

private static final int MAGIC_VER_2

Constructor Detail

EncryptedFragment

public EncryptedFragment(java.lang.String fragmentName,
                         byte[] fragmentData)
                  throws java.io.IOException

EncryptedFragment

public EncryptedFragment(FragmentList listToEncrypt,
                         GalePublicKey[] publ)

Convenience Constructor

EncryptedFragment

public EncryptedFragment(java.lang.String fragmentName,
                         FragmentList listToEncrypt,
                         GalePublicKey[] publ)

Encrypts the given fragment list with the given private key.

Method Detail

getType

public FragmentType getType()

decryptFragmentList

public void decryptFragmentList()

getFragmentList

public FragmentList getFragmentList()

decrypt

private byte[] decrypt(byte[] ekey,
                       GalePrivateKey privateKey)

Parameters:

ekey - encrypted key associated with key name

privateKey - private key associated with key name

targetIDs

public java.util.Enumeration targetIDs()

getStreamLength

public int getStreamLength()

write

public void write(GaleOutputStream out)
           throws java.io.IOException

Writes this EncryptedFragment to the given output stream, locking it with synchronized (out)

Parameters:

out - the stream on which to write this.

toString

public java.lang.String toString(int indentLevel)

Overrides:

toString in class AbstractFragment

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object