anon.mixminion.message
Class Keyring

java.lang.Object
  anon.mixminion.message.Keyring

public class Keyring
extends java.lang.Object

Author:

Stefan Roenisch

Field Summary

(package private) int	KEY_LEN
(package private) static long	KEY_LIFETIME
private java.util.Vector	m_expiring
private java.util.Vector	m_mykeys
private java.lang.String	m_password
private int	m_today

Constructor Summary

Keyring(java.lang.String password)
Constructor

Method Summary

private int	byteToInt(byte[] b, int offset) Calculates the int value of a given ByteArray
void	changeKeyringPW(java.lang.String newpw)
byte[]	getNewSecret()
java.util.Vector	getUserSecrets()
private byte[]	makeNewKey() Produces a new usersecret
private int	myceil(double a, double b) Behaves like Math.ceil, but gives minimum 1 as value
private java.lang.String	packKeyring() encrypts the m_data and brings it in a ascii-armored base64 notation
private void	saveKeyRing() saves the keyring
private void	unpackKeyRing(java.lang.String encodeddata)

Methods inherited from class java.lang.Object

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

Field Detail

KEY_LEN

final int KEY_LEN

See Also:

Constant Field Values

KEY_LIFETIME

static final long KEY_LIFETIME

See Also:

Constant Field Values

m_mykeys

private java.util.Vector m_mykeys

m_expiring

private java.util.Vector m_expiring

m_password

private java.lang.String m_password

m_today

private int m_today

Constructor Detail

Keyring

public Keyring(java.lang.String password)

Constructor

Parameters:

password -

Method Detail

getUserSecrets

public java.util.Vector getUserSecrets()

Returns:

a Vector with all usersecrets

getNewSecret

public byte[] getNewSecret()

Returns:

new secret as byte[]

packKeyring

private java.lang.String packKeyring()

encrypts the m_data and brings it in a ascii-armored base64 notation

Returns:

string with base64 keyring

unpackKeyRing

private void unpackKeyRing(java.lang.String encodeddata)
                    throws java.io.IOException

Throws:

java.io.IOException

makeNewKey

private byte[] makeNewKey()

Produces a new usersecret

Returns:

changeKeyringPW

public void changeKeyringPW(java.lang.String newpw)

saveKeyRing

private void saveKeyRing()

saves the keyring

byteToInt

private int byteToInt(byte[] b,
                      int offset)

Calculates the int value of a given ByteArray

Parameters:

b -

offset -

Returns:

int value of the bytearray

myceil

private int myceil(double a,
                   double b)

Behaves like Math.ceil, but gives minimum 1 as value

Parameters:

a -

b -

Returns: