Package com.mku.salmon.password

Class SalmonPassword

java.lang.Object

com.mku.salmon.password.SalmonPassword

public class SalmonPassword
extends Object

Generates security keys based on text passwords.

Constructor Summary

Constructors

Constructor	Description
SalmonPassword()

Method Summary

Modifier and Type	Method	Description
static byte[]	getKeyFromPassword(String password, byte[] salt, int iterations, int outputBytes)	Function will derive a key from a text password
static byte[]	getMasterKey(String pass, byte[] salt, int iterations, int length)	Derives the key from a text password
static PbkdfAlgo	getPbkdfAlgo()	Returns the current global PBKDF algorithm.
static void	setPbkdfAlgo(PbkdfAlgo pbkdfAlgo)	Set the global PDKDF algorithm to be used for key derivation.
static void	setPbkdfProvider(ISalmonPbkdfProvider pbkdfProvider)	Set the global PBKDF provider to be used for text key derivation.
static void	setPbkdfType(PbkdfType pbkdfType)	Set the global PBKDF implementation to be used for text key derivation.

Methods inherited from class java.lang.Object

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

Constructor Details

SalmonPassword

public SalmonPassword()

Method Details

getPbkdfAlgo

public static PbkdfAlgo getPbkdfAlgo()

Returns the current global PBKDF algorithm.

Returns:

The PBKDF algorithm to be used.

setPbkdfAlgo

public static void setPbkdfAlgo(PbkdfAlgo pbkdfAlgo)

Set the global PDKDF algorithm to be used for key derivation.

Parameters:

pbkdfAlgo - The PBKDF algorithm to use

setPbkdfType

public static void setPbkdfType(PbkdfType pbkdfType)

Set the global PBKDF implementation to be used for text key derivation.

Parameters:

pbkdfType - The PBKDF implementation to use

setPbkdfProvider

public static void setPbkdfProvider(ISalmonPbkdfProvider pbkdfProvider)

Set the global PBKDF provider to be used for text key derivation.

Parameters:

pbkdfProvider - The PBKDF provider

getMasterKey

public static byte[] getMasterKey(String pass,
 byte[] salt,
 int iterations,
 int length)

Derives the key from a text password

Parameters:

pass - The text password to be used

salt - The salt to be used for the key derivation

iterations - The number of iterations the key derivation algorithm will use

length - The length of master key to return

Returns:

The derived master key.

Throws:

SalmonSecurityException - Thrown if there is a security exception

getKeyFromPassword

public static byte[] getKeyFromPassword(String password,
 byte[] salt,
 int iterations,
 int outputBytes)

Function will derive a key from a text password

Parameters:

password - The password that will be used to derive the key

salt - The salt byte array that will be used together with the password

iterations - The iterations to be used with Pbkdf2

outputBytes - The number of bytes for the key

Returns:

The derived key.

Throws:

SalmonSecurityException - Thrown if there is a security exception