com.hissenit.crypto.tools

Class Tools

java.lang.Object

com.hissenit.crypto.tools.Tools

public class Tools
extends java.lang.Object

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	secureRandom(java.io.File file, long size) Creates a new file with secure random bytes.
static byte[]	secureRandom(int size) Creates an array of secure random bytes
static void	wipe(byte[]... bytes) Overwrites the array with random data
static void	wipe(byte[] bytes) Overwrites the array with random data
static void	wipe(char[] chars) Overwrites the array with random data
static boolean	wipe(java.io.File file) Overwriting an existing file with random data, overwrites the filename and deletes the file (one pass)
static boolean	wipe(java.io.File file, int passes) Overwriting an existing file with random data, overwrites the filename and deletes the file

Methods inherited from class java.lang.Object

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

Method Detail

secureRandom

public static final byte[] secureRandom(int size)

Creates an array of secure random bytes

secureRandom

public static final boolean secureRandom(java.io.File file,
                   long size)

Creates a new file with secure random bytes.

Parameters:

file - to be created

size - in bytes

Returns:

false if the file already exists or cannot be created

wipe

public static final void wipe(char[] chars)

Overwrites the array with random data

wipe

public static final void wipe(byte[] bytes)

Overwrites the array with random data

wipe

public static final void wipe(byte[]... bytes)

Overwrites the array with random data

wipe

public static final boolean wipe(java.io.File file)

Overwriting an existing file with random data, overwrites the filename and deletes the file (one pass)

Returns:

true if everything worked fine, false if something went wrong (the file might still be wiped or deleted partly)

wipe

public static final boolean wipe(java.io.File file,
           int passes)

Overwriting an existing file with random data, overwrites the filename and deletes the file

Parameters:

passes - number of wiping passes, usually 1 is just fine

Returns:

true if everything worked fine, false if something went wrong (the file might still be wiped or deleted partly)