org.cyclos.impl.utils

Class PasswordHelper

java.lang.Object

org.cyclos.impl.utils.PasswordHelper

public class PasswordHelper
extends java.lang.Object

Helper methods for process and validate passwords

Field Summary

Fields

Modifier and Type	Field and Description
static int	SPLIT_PASSWORD_LENGTH
static java.lang.String	SPLIT_PASSWORD_SEPARATOR
static java.lang.String	SPLIT_SEQUENCE_SEPARATOR

Constructor Summary

Constructors

Constructor and Description
PasswordHelper()

Method Summary

Modifier and Type	Method and Description
static java.util.List<java.lang.String>	generateVirtualKeyboardSequence(PasswordType passwordType, java.lang.String passwordValue) Generates a valid virtual keyboard sequence for the given password type, and current password value.
static boolean	isOldSchemeTextBoxValid(java.lang.String value, Password password) Deprecated. Will be removed in future Cyclos versions
static boolean	isOldSchemeVirtualKeyboardValid(java.lang.String value, Password password, VirtualKeyboardInput vki, java.lang.String[] valueSequences) Deprecated. Will be removed in future versions
static java.util.List<java.lang.String>	toVirtualKeyboardSequences(java.lang.String text) Converts a text, separated by SPLIT_SEQUENCE_SEPARATOR, having each button text separated by SPLIT_PASSWORD_SEPARATOR into a list of strings
static java.lang.String	toVirtualKeyboardText(java.util.List<java.lang.String> sequences) Converts list of strings into a text, separated by SPLIT_SEQUENCE_SEPARATOR, having each button text separated by SPLIT_PASSWORD_SEPARATOR

Methods inherited from class java.lang.Object

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

Field Detail

SPLIT_PASSWORD_LENGTH

public static final int SPLIT_PASSWORD_LENGTH

See Also:

Constant Field Values

SPLIT_PASSWORD_SEPARATOR

public static final java.lang.String SPLIT_PASSWORD_SEPARATOR

See Also:

Constant Field Values

SPLIT_SEQUENCE_SEPARATOR

public static final java.lang.String SPLIT_SEQUENCE_SEPARATOR

See Also:

Constant Field Values

Constructor Detail

PasswordHelper

public PasswordHelper()

Method Detail

generateVirtualKeyboardSequence

public static java.util.List<java.lang.String> generateVirtualKeyboardSequence(PasswordType passwordType,
                                                                               java.lang.String passwordValue)

Generates a valid virtual keyboard sequence for the given password type, and current password value. If a current password is given, it is guaranteed that the password chars will be contained on each sequence, allowing more possible characters than the limit of buttons * chars per button. If the current password is null, that limit must be respected. If the password type's input method is not PasswordInputMethod.VIRTUAL_KEYBOARD, returns null.

isOldSchemeTextBoxValid

@Deprecated
public static boolean isOldSchemeTextBoxValid(java.lang.String value,
                                                          Password password)

Deprecated. Will be removed in future Cyclos versions

Returns whether an old-scheme text box password is valid

isOldSchemeVirtualKeyboardValid

@Deprecated
public static boolean isOldSchemeVirtualKeyboardValid(java.lang.String value,
                                                                  Password password,
                                                                  VirtualKeyboardInput vki,
                                                                  java.lang.String[] valueSequences)

Deprecated. Will be removed in future versions

This method determines if the given plain value is equals to the given password.
Steps:

• Splits the plain value and the password into separate sequences.
  
• Applies brute force to generate all possible combinations of each plain value sequence.
  
• Each combination is processed (hash+salt) and is compared with the corresponding sequence of the password.
  
• If a sequence does not match the corresponding sequence of the password, the method finishes the execution.
  

toVirtualKeyboardSequences

public static java.util.List<java.lang.String> toVirtualKeyboardSequences(java.lang.String text)

Converts a text, separated by SPLIT_SEQUENCE_SEPARATOR, having each button text separated by SPLIT_PASSWORD_SEPARATOR into a list of strings

toVirtualKeyboardText

public static java.lang.String toVirtualKeyboardText(java.util.List<java.lang.String> sequences)

Converts list of strings into a text, separated by SPLIT_SEQUENCE_SEPARATOR, having each button text separated by SPLIT_PASSWORD_SEPARATOR