org.daveware.passwordmaker

Class PasswordMaker

java.lang.Object

org.daveware.passwordmaker.PasswordMaker

public class PasswordMaker
extends Object

This class is used to generate passwords from a master password and an account.

Author:

Dave Marotti

Constructor Summary

Constructors

Constructor and Description
PasswordMaker()

Method Summary

Methods

Modifier and Type	Method and Description
static double	calcPasswordStrength(SecureCharArray pw) Calculates the strength of a password.
SecureCharArray	generateVerificationCode(SecureCharArray masterPassword)
static String	getDefaultCryptoProvider()
String	getModifiedInputText(String inputText, Account account)
SecureCharArray	makePassword(SecureCharArray masterPassword, Account account) Generates a hash of the master password with settings from the account.
SecureCharArray	makePassword(SecureCharArray masterPassword, Account account, String inputText) Generates a hash of the master password with settings from the account.
SecureCharArray	rstr2any(char[] input, String encoding, boolean trim) Maps an array of characters to another character set.
static void	setDefaultCryptoProvider(String provider)

Methods inherited from class java.lang.Object

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

Constructor Detail

PasswordMaker

public PasswordMaker()

Method Detail

setDefaultCryptoProvider

public static void setDefaultCryptoProvider(String provider)

getDefaultCryptoProvider

public static String getDefaultCryptoProvider()

calcPasswordStrength

public static double calcPasswordStrength(SecureCharArray pw)

Calculates the strength of a password.

Returns:

An integer value from 0 to 100.

rstr2any

public SecureCharArray rstr2any(char[] input,
                       String encoding,
                       boolean trim)
                         throws Exception

Maps an array of characters to another character set.

This is the magic which allows an encrypted password to be mapped into a a specific character set.

Parameters:

input - The array of characters to map.

encoding - The list of characters to map to.

trim - Whether to trim leading zeros ... I think.

Returns:

The mapped string.

Throws:

Exception - On odd length!?

getModifiedInputText

public final String getModifiedInputText(String inputText,
                          Account account)

makePassword

public SecureCharArray makePassword(SecureCharArray masterPassword,
                           Account account,
                           String inputText)
                             throws Exception

Generates a hash of the master password with settings from the account.

Parameters:

masterPassword - The password to use as a key for the various algorithms.

account - The account with the specific settings for the hash.

inputText - The text to use as the input into the password maker algorithm

Returns:

A SecureCharArray with the hashed data.

Throws:

Exception - if something bad happened.

makePassword

public SecureCharArray makePassword(SecureCharArray masterPassword,
                           Account account)
                             throws Exception

Generates a hash of the master password with settings from the account.

Parameters:

masterPassword - The password to use as a key for the various algorithms.

account - The account with the specific settings for the hash. Uses account.getUrl() as the inputText

Returns:

A SecureCharArray with the hashed data.

Throws:

Exception - if something bad happened.

generateVerificationCode

public SecureCharArray generateVerificationCode(SecureCharArray masterPassword)
                                         throws Exception

Throws:

Exception