A B C D E F G H I J L M N O P R S T V W Y

A

ABORT - Static variable in class trex.GUI.JMessageBox

Button type: Abort

accept(File) - Method in class trex.GUI.ImageChooser.ImageFilter

Accept all directories and all gif, jpg, or png files.

actionPerformed(ActionEvent) - Method in class trex.GUI.MainFrame_AboutBox

Close the dialog on a button event.

actionPerformed(ActionEvent) - Method in class trex.GUI.JMessageBox

Close the dialog on a button event

B

Box(Frame, String, String, int) - Static method in class trex.GUI.JMessageBox

Display a modal message box and return selected button.

bytesToInt(byte[]) - Static method in class trex.TRexUtil

generate an integer from a byte array with 4 elements

bytesToString(byte[]) - Static method in class trex.TRexUtil

print a byte array as a comma seperated string

C

CANCEL - Static variable in class trex.GUI.JMessageBox

Button type: Cancel

CHANNEL_BLUE - Static variable in class trex.GUI.HistoPanel

Display Histogram for blue channel

CHANNEL_GREEN - Static variable in class trex.GUI.HistoPanel

Display Histogram for green channel

CHANNEL_RED - Static variable in class trex.GUI.HistoPanel

Display Histogram for red channel

CHANNEL_VALUE - Static variable in class trex.GUI.HistoPanel

Display Histogram for value

clamp(int) - Static method in class trex.GUI.CombinedPanel

Converts an int to a byte, setting the byte to 255 when input is larger than 255, or 0, if input is negative.

collectBins(Frame, ImageIcon, int) - Static method in class trex.GUI.HistoPanel

Grab pixels from image and create histogram bins.

collectBins(int[], int) - Static method in class trex.GUI.HistoPanel

Create histogram bins.

CombinedPanel - class trex.GUI.CombinedPanel.

This class provides a panel for the combined view, i.e. the uncrypted, the crypted and the differential picture on the same screen.

CombinedPanel(ImageIcon, ImageIcon, Frame) - Constructor for class trex.GUI.CombinedPanel

Constructor.

CombinedPanel(ImageIcon, ImageIcon, Frame, int) - Constructor for class trex.GUI.CombinedPanel

Constructor.

concatByteArrays(byte[], byte[]) - Static method in class trex.TRexUtil

concatenate two byte arrays.

createDiff(ImageIcon, ImageIcon, Frame, int) - Static method in class trex.GUI.CombinedPanel

return a differential pic of img1 and img2.

createHisto(Frame, ImageIcon, int, int, Color, int) - Static method in class trex.GUI.HistoPanel

Create the actual histogram image.

cropImage(Object, int, int) - Method in class trex.Algo.StegoAlgoFFT

After the inverse DFT, the image can be cropped to the original image's size with this function.

D

data - Variable in class trex.Filter.TRexFilterRGB

Data to hide as a byte array.

DataPanel - class trex.GUI.DataPanel.

This class provides a panel for the texts to hide.

DataPanel(JFrame, StegData) - Constructor for class trex.GUI.DataPanel

Constructs new Panel.

DecryptImpossibleException - exception trex.DecryptImpossibleException.

An Exception of this class is thrown when a decryption failed because the algorithm was not able to handle the contained data.

DecryptImpossibleException() - Constructor for class trex.DecryptImpossibleException

defaultAmplification() - Method in class trex.StegData

Get current algorithm's default amplification for combined panel.

defaultAmplification() - Method in class trex.Algo.StegoAlgoFFT

Return the default amplification of this algorithm for the combinedPanel.

defaultAmplification() - Method in class trex.Algo.StegoAlgoRGB

Return the default amplification of this algorithm for the combinedPanel.

defaultAmplification() - Method in class trex.Algo.StegoAlgo

Return the default amplification of this algorithm for the combinedPanel.

E

embedData(String, PlanarImage, int, int) - Method in class trex.Algo.StegoAlgoFFT

Embed data into image.

extractData(PlanarImage, int, int) - Method in class trex.Algo.StegoAlgoFFT

Get actual data from image.

F

filterRGB(int, int, int) - Method in class trex.Algo.StegoAlgoLSB.LSBEncryptFilter

hides 3 bits of data in exactely one pixel and returns the new pixel

filterRGB(int, int, int) - Method in class trex.Algo.StegoAlgoLSB.LSBDecryptFilter

Extracts the data from the image.

FormatTransformed(PlanarImage, BufferedImage) - Method in class trex.Algo.StegoAlgoFFT

Reformat the image to "TYPE_BYTE" so it can be displayed.

G

getBit(byte[], int) - Static method in class trex.TRexUtil

Return a bit (0 || 1) from a byte array indexed as pos.

getConfigDialog() - Method in class trex.StegData

Get current algorithm's config dialog.

getConfigDialog() - Method in class trex.Algo.StegoAlgoFFT

Return the config dialog.

getConfigDialog() - Method in class trex.Algo.StegoAlgoLSB

LSB does not have a config dialog - returns null.

getConfigDialog() - Method in class trex.Algo.StegoAlgo

If hasConfigDialog() is true, return a panel with the config dialog.

getCrypted() - Method in class trex.StegData

Get the encrypted image.

getData() - Method in class trex.StegData

Get contained data (e.g. from decryption).

getData() - Method in class trex.Filter.TRexFilterRGB

Return contained data as a String.

getData() - Method in class trex.Algo.StegoAlgoLSBpp.LSBppDecryptFilter

Return contained data as a String.

getDecrypted(ImageIcon) - Method in class trex.Algo.StegoAlgoFFT

Get embedded data from image.

getDecrypted(ImageIcon) - Method in class trex.Algo.StegoAlgoRGB

Return the string contained in the ImageIcon.

getDecrypted(ImageIcon) - Method in class trex.Algo.StegoAlgo

Return the string contained in the ImageIcon.

getDecryptFilter(int, int) - Method in class trex.Algo.StegoAlgoRGB

Return a decrypt filter for this algorithm.

getDecryptFilter(int, int) - Method in class trex.Algo.StegoAlgoLSBpp

Return a decrypt filter for this algorithm.

getDecryptFilter(int, int) - Method in class trex.Algo.StegoAlgoLSB

Return a decrypt filter for this algorithm.

getDescription() - Method in class trex.GUI.ImageChooser.ImageFilter

The description of this filter

getDescription(File) - Method in class trex.GUI.ImageChooser.ImageFileView

Return a description for the file.

getEncrypted(String, ImageIcon) - Method in class trex.Algo.StegoAlgoFFT

This method is called from the application's StegData object.

getEncrypted(String, ImageIcon) - Method in class trex.Algo.StegoAlgoRGB

Return an image hiding the data.

getEncrypted(String, ImageIcon) - Method in class trex.Algo.StegoAlgo

Return an image hiding the data.

getEncryptFilter(String, int, int) - Method in class trex.Algo.StegoAlgoRGB

Return an encrypt filter for this algorithm.

getEncryptFilter(String, int, int) - Method in class trex.Algo.StegoAlgoLSBpp

Return an encrypt filter for this algorithm (identical to LSB) and XOR data with pass phrase beforehand.

getEncryptFilter(String, int, int) - Method in class trex.Algo.StegoAlgoLSB

Return an encrypt filter for this algorithm.

getExtension(File) - Static method in class trex.GUI.ImageChooser.ImageChooserUtils

Get the extension of a file.

getIcon(File) - Method in class trex.GUI.ImageChooser.ImageFileView

Return an icon for the file.

getInfo() - Method in class trex.Algo.StegoAlgoFFT

Static info.

getInfo() - Method in class trex.Algo.StegoAlgoLSBpp

Return an info string about this algorithm.

getInfo() - Method in class trex.Algo.StegoAlgoLSB

Return an info string about this algorithm.

getInfo() - Method in class trex.Algo.StegoAlgo

Return an info string about this algorithm.

getName(File) - Method in class trex.GUI.ImageChooser.ImageFileView

Return file's name.

getTypeDescription(File) - Method in class trex.GUI.ImageChooser.ImageFileView

Return a description for the file type.

getUncrypted() - Method in class trex.StegData

Get the uncrypted image.

gif - Static variable in class trex.GUI.ImageChooser.ImageChooserUtils

Image suffixes.

H

h - Variable in class trex.Filter.TRexFilterRGB

Objective picture's size.

hasConfigDialog() - Method in class trex.StegData

Return whether current algorith has a config dialog.

hasConfigDialog() - Method in class trex.Algo.StegoAlgoFFT

Algorithm has a config dialog.

hasConfigDialog() - Method in class trex.Algo.StegoAlgoLSB

Return whether this algorithm has a config dialog.

hasConfigDialog() - Method in class trex.Algo.StegoAlgo

Return whether this algorithm has a config dialog.

hasPassPhrase() - Method in class trex.StegData

Return whether current algorithm needs a pass phrase.

hasPassPhrase() - Method in class trex.Algo.StegoAlgoFFT

Algorithm doesn't have a pass phrase - uses a config dialog instead.

hasPassPhrase() - Method in class trex.Algo.StegoAlgoLSBpp

Return true.

hasPassPhrase() - Method in class trex.Algo.StegoAlgoLSB

Return whether this algorithm needs a pass phrase.

hasPassPhrase() - Method in class trex.Algo.StegoAlgo

Return whether this algorithm needs a pass phrase.

HistoPanel - class trex.GUI.HistoPanel.

This class provides a panel for (possibly two concurrent) histograms of ImageIcons.

HistoPanel(Frame, ImageIcon, ImageIcon, Color, Color, String, int, int) - Constructor for class trex.GUI.HistoPanel

Constructor.

I

IGNORE - Static variable in class trex.GUI.JMessageBox

Button type: Ignore

iitobi(ImageIcon, Frame) - Static method in class trex.TRexUtil

create a BufferedImage from an ImageIcon

ImageChooserUtils - class trex.GUI.ImageChooser.ImageChooserUtils.

Stupid helper class for filechooser.

ImageChooserUtils() - Constructor for class trex.GUI.ImageChooser.ImageChooserUtils

ImageFileView - class trex.GUI.ImageChooser.ImageFileView.

This class implements a file view for application's "load" and "save" dialogs.

ImageFileView() - Constructor for class trex.GUI.ImageChooser.ImageFileView

ImageFilter - class trex.GUI.ImageChooser.ImageFilter.

The ImageFilter checks whether a file is to be displayed in the file chooser.

ImageFilter() - Constructor for class trex.GUI.ImageChooser.ImageFilter

ImagePreview - class trex.GUI.ImageChooser.ImagePreview.

The ImagePreview creates a thumbnail for files.

ImagePreview(JFileChooser) - Constructor for class trex.GUI.ImageChooser.ImagePreview

Constructs a new ImagePreview.

insertTextLabel(String) - Method in class trex.GUI.CombinedPanel

Helper function: add a Label to this Panel

intsToString(int[]) - Static method in class trex.TRexUtil

print a int array as a comma seperated string

intToBytes(int) - Static method in class trex.TRexUtil

Convert an integer to an array of 4 bytes.

isTraversable(File) - Method in class trex.GUI.ImageChooser.ImageFileView

Whether this directory is traversable.

J

jMenuAlgoLoad_actionPerformed(ActionEvent) - Method in class trex.GUI.MainFrame

Algorithm | Load Algorithm action performed.

jMenuExtraGC_actionPerformed(ActionEvent) - Method in class trex.GUI.MainFrame

Extra | Garbage Collection action performed.

jMenuFileExit_actionPerformed(ActionEvent) - Method in class trex.GUI.MainFrame

File | Exit action performed.

jMenuFileLoadCrypted_actionPerformed(ActionEvent) - Method in class trex.GUI.MainFrame

File | Load crypted action performed.

jMenuFileLoadUncrypted_actionPerformed(ActionEvent) - Method in class trex.GUI.MainFrame

File | Load uncrypted action performed.

jMenuFileSaveCrypted_actionPerformed(ActionEvent) - Method in class trex.GUI.MainFrame

File | Save crypted action performed.

jMenuHelpAbout_actionPerformed(ActionEvent) - Method in class trex.GUI.MainFrame

Help | About action performed.

JMessageBox - class trex.GUI.JMessageBox.

Provides a simple MessageBox class.

jpeg - Static variable in class trex.GUI.ImageChooser.ImageChooserUtils

Image suffixes.

jpg - Static variable in class trex.GUI.ImageChooser.ImageChooserUtils

Image suffixes.

L

loadAlgoClass(String) - Method in class trex.GUI.MainFrame

loadData(File) - Method in class trex.GUI.DataPanel

M

main(String[]) - Static method in class trex.TRexApp

Main method

MainFrame - class trex.GUI.MainFrame.

This class represents the main frame.

MainFrame_AboutBox - class trex.GUI.MainFrame_AboutBox.

Display Message Box with info about TRex.

MainFrame_AboutBox(Frame) - Constructor for class trex.GUI.MainFrame_AboutBox

Constructor.

MainFrame(String, String, String) - Constructor for class trex.GUI.MainFrame

Construct the frame.

makeImagePanel(ImageIcon) - Static method in class trex.TRexUtil

Creates a JPanel only containing an ImageIcon.

makeImagePanel(String) - Static method in class trex.TRexUtil

Creates a JPanel only containing an ImageIcon read from a file.

makePanel(ImageIcon, String) - Static method in class trex.TRexUtil

Construct a panel displaying an ImageIcon (if available) or a text (as a fallback).

makePanel(String, String) - Static method in class trex.TRexUtil

Construct a panel displaying an ImageIcon (if available) or a text (as a fallback).

makeTextPanel(String) - Static method in class trex.TRexUtil

Creates a JPanel only containing a text label.

maxArray(int[]) - Static method in class trex.TRexUtil

Find largest value in an array.

modifyText(JFrame, String) - Static method in class trex.GUI.SimpleTextEditor

Display a window to edit the text.

N

NO - Static variable in class trex.GUI.JMessageBox

Button type: No

O

OK - Static variable in class trex.GUI.JMessageBox

Button type: OK

openCrypted(String) - Method in class trex.StegData

Open a crypted Image (containing hidden data).

openUncrypted(String) - Method in class trex.StegData

Open an uncrypted Image with filename.

P

paintComponent(Graphics) - Method in class trex.GUI.ImageChooser.ImagePreview

perform image painting

paramsChanged() - Method in class trex.StegData

This routine is called whenever the parameters have changed, e.g. new images, new data, changes in pass phrase/config dialog, ...

parseParams(String[]) - Static method in class trex.TRexApp

Parse parameters.

passPhrase - Variable in class trex.Algo.StegoAlgo

Algorithm's current pass phrase.

PassPhrasePanel - class trex.GUI.PassPhrasePanel.

This panel provides a pass phrase input dialog for TRex.

PassPhrasePanel(StegData, String) - Constructor for class trex.GUI.PassPhrasePanel

Constructor.

pictureLargeEnough(ImageIcon, String) - Method in class trex.Algo.StegoAlgoFFT

Algorithm currently does not know how big an image has to be.

pictureLargeEnough(ImageIcon, String) - Method in class trex.Algo.StegoAlgoLSB

Return whether the passed picture is large enough to carry the data

pictureLargeEnough(ImageIcon, String) - Method in class trex.Algo.StegoAlgo

Return whether the passed picture is large enough to carry the data

png - Static variable in class trex.GUI.ImageChooser.ImageChooserUtils

Image suffixes.

printDebug(String) - Static method in class trex.TRexUtil

processWindowEvent(WindowEvent) - Method in class trex.GUI.MainFrame_AboutBox

Overridden so we can exit when window is closed.

processWindowEvent(WindowEvent) - Method in class trex.GUI.MainFrame

Overridden so we can exit when window is closed.

propertyChange(PropertyChangeEvent) - Method in class trex.GUI.ImageChooser.ImagePreview

Respond to file selections and the like.

R

resetDataPanel() - Method in class trex.GUI.MainFrame

Reset the data panel.

resetPicPanels() - Method in class trex.GUI.MainFrame

Reconstruct the panels containg the pictures (cryted, uncrypted, combined).

S

saveCrypted(String) - Method in class trex.StegData

Save crypted image to file.

setAlgo(Class) - Method in class trex.StegData

Set a new algorithm.

setBit(byte[], int, int) - Static method in class trex.TRexUtil

Set a bit in a byte array.

setData(String) - Method in class trex.StegData

Set new data to hide.

setImg1(ImageIcon) - Method in class trex.GUI.HistoPanel

Set image1.

setImg2(ImageIcon) - Method in class trex.GUI.HistoPanel

Set image2.

setPassPhrase(String) - Method in class trex.StegData

Set a new pass phrase for current algorithm.

setPassPhrase(String) - Method in class trex.Algo.StegoAlgo

Set new pass phrase.

setText(String) - Method in class trex.GUI.DataPanel

set panel's text.

simpleAddImages(Frame, ImageIcon, ImageIcon) - Static method in class trex.TRexUtil

This method adds two images and returns their "OR" picture.

simpleAddImages(Frame, Image, Image, int, int) - Static method in class trex.TRexUtil

This method adds two images by returning their "OR" picture.

SimpleTextEditor - class trex.GUI.SimpleTextEditor.

This is a simple text editor window.

squaredImage(Object, int, int) - Method in class trex.Algo.StegoAlgoFFT

As FFT needs Images of the dimension n^2 x m^2 for any natural n and m, the image is converted to an image of that size beforehand with this method.

StegData - class trex.StegData.

This class handles steganography algorithms and their data.

StegData(MainFrame, Class) - Constructor for class trex.StegData

Default constructor.

StegoAlgo - class trex.Algo.StegoAlgo.

This class defines the interface of steganography algorithms.

StegoAlgo() - Constructor for class trex.Algo.StegoAlgo

StegoAlgoFFT - class trex.Algo.StegoAlgoFFT.

This algorithm stores data in the frequency domain.

StegoAlgoFFT() - Constructor for class trex.Algo.StegoAlgoFFT

StegoAlgoLSB - class trex.Algo.StegoAlgoLSB.

This class implements the LSB Steganography Algorithm.

StegoAlgoLSB.LSBDecryptFilter - class trex.Algo.StegoAlgoLSB.LSBDecryptFilter.

LSBDecryptFilter is the decrypt filter for the LSB algorithm.

StegoAlgoLSB.LSBDecryptFilter(int, int) - Constructor for class trex.Algo.StegoAlgoLSB.LSBDecryptFilter

Constructs a new filter.

StegoAlgoLSB.LSBEncryptFilter - class trex.Algo.StegoAlgoLSB.LSBEncryptFilter.

LSBEncryptFilter is the encrypt filter for the LSB algorithm.

StegoAlgoLSB.LSBEncryptFilter(String, int, int) - Constructor for class trex.Algo.StegoAlgoLSB.LSBEncryptFilter

Constructs a new filter.

StegoAlgoLSB() - Constructor for class trex.Algo.StegoAlgoLSB

StegoAlgoLSBpp - class trex.Algo.StegoAlgoLSBpp.

This class adds a (very little) bit of security to the LSB algorithm by XORing every input character with a character from the passphrase.

StegoAlgoLSBpp.LSBppDecryptFilter - class trex.Algo.StegoAlgoLSBpp.LSBppDecryptFilter.

This class adds the XOR functionality to the "getData" function.

StegoAlgoLSBpp.LSBppDecryptFilter(int, int) - Constructor for class trex.Algo.StegoAlgoLSBpp.LSBppDecryptFilter

Constructor.

StegoAlgoLSBpp() - Constructor for class trex.Algo.StegoAlgoLSBpp

StegoAlgoRGB - class trex.Algo.StegoAlgoRGB.

This extension to standard StegoAlgos allows for an easier implementation, if the subjacent algorithm only works "pixel-wise", taking one pixel at a time and returning another.

StegoAlgoRGB() - Constructor for class trex.Algo.StegoAlgoRGB

subArray(byte[], int, int) - Static method in class trex.TRexUtil

return a part of an array.

synopsis() - Static method in class trex.TRexApp

T

trex - package trex

trex.Algo - package trex.Algo

trex.Filter - package trex.Filter

trex.GUI - package trex.GUI

trex.GUI.ImageChooser - package trex.GUI.ImageChooser

TRexApp - class trex.TRexApp.

TRex Application.

TRexApp() - Constructor for class trex.TRexApp

Construct the application

TRexFilterRGB - class trex.Filter.TRexFilterRGB.

This is the base class for all encrypt and decrypt filters.

TRexFilterRGB() - Constructor for class trex.Filter.TRexFilterRGB

Default constructor.

TRexFilterRGB(String, int, int) - Constructor for class trex.Filter.TRexFilterRGB

Creates a new filter.

TRexUtil - class trex.TRexUtil.

This class provides a couple of helper functions commonly used in TRex (and maybe others... ;) Methods are static and can be called from outside without instantiating TRexUtil.

TRexUtil() - Constructor for class trex.TRexUtil

V

validConfig() - Method in class trex.Algo.StegoAlgoFFT

Config is valid when it's "I know it's senseless" button is checked.

validConfig() - Method in class trex.Algo.StegoAlgoLSB

Return whether the config setup in the setup/passphrase dialog is valid.

validConfig() - Method in class trex.Algo.StegoAlgo

Return whether the config from pass phrase or config dialog are valid.

W

w - Variable in class trex.Filter.TRexFilterRGB

Objective picture's size.

windowActivated(WindowEvent) - Method in class trex.GUI.JMessageBox

Event handling.

windowClosed(WindowEvent) - Method in class trex.GUI.JMessageBox

Event handling.

windowClosing(WindowEvent) - Method in class trex.GUI.JMessageBox

Window closing is understood as "Abort" button.

windowDeactivated(WindowEvent) - Method in class trex.GUI.JMessageBox

Event handling.

windowDeiconified(WindowEvent) - Method in class trex.GUI.JMessageBox

Event handling.

windowIconified(WindowEvent) - Method in class trex.GUI.JMessageBox

Event handling.

windowOpened(WindowEvent) - Method in class trex.GUI.JMessageBox

Event handling.

Y

YES - Static variable in class trex.GUI.JMessageBox

Button type: Yes

A B C D E F G H I J L M N O P R S T V W Y