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java.lang.Objectnet.sourceforge.openstego.OpenStegoPlugin
public abstract class OpenStegoPlugin
Abstract class for stego plugins for OpenStego. Abstract methods need to be implemented to add support for more steganographic algorithms
Field Summary | |
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protected OpenStegoConfig |
config
Configuration data to be used while embedding / extracting data |
static java.lang.String |
PURPOSE_DATA_HIDING
Constant for the purpose of the plugin - Data Hiding |
static java.lang.String |
PURPOSE_WATERMARKING
Constant for the purpose of the plugin - Watermarking |
Constructor Summary | |
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OpenStegoPlugin()
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Method Summary | |
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abstract boolean |
canHandle(byte[] stegoData)
Method to find out whether given stego data can be handled by this plugin or not |
double |
checkMark(byte[] stegoData,
java.lang.String stegoFileName,
byte[] origSigData)
Method to check the correlation for the given image and the original signature |
OpenStegoConfig |
createConfig()
Method to create default configuration data (specific to this plugin) |
OpenStegoConfig |
createConfig(CmdLineOptions options)
Method to create configuration data (specific to this plugin) based on the command-line options |
OpenStegoConfig |
createConfig(java.util.Map propMap)
Method to create configuration data (specific to this plugin) based on the property map |
abstract byte[] |
embedData(byte[] msg,
java.lang.String msgFileName,
byte[] cover,
java.lang.String coverFileName,
java.lang.String stegoFileName)
Method to embed the message into the cover data |
abstract byte[] |
extractData(byte[] stegoData,
java.lang.String stegoFileName,
byte[] origSigData)
Method to extract the message from the stego data |
abstract java.lang.String |
extractMsgFileName(byte[] stegoData,
java.lang.String stegoFileName)
Method to extract the message file name from the stego data |
abstract byte[] |
generateSignature()
Method to generate the signature data. |
OpenStegoConfig |
getConfig()
Get method for config |
abstract java.lang.Class |
getConfigClass()
Method to get the configuration class specific to this plugin |
abstract java.lang.String |
getDescription()
Gives a short description of the plugin |
abstract byte[] |
getDiff(byte[] stegoData,
java.lang.String stegoFileName,
byte[] coverData,
java.lang.String coverFileName,
java.lang.String diffFileName)
Method to get difference between original cover file and the stegged file |
abstract PluginEmbedOptionsUI |
getEmbedOptionsUI(OpenStegoUI stegoUI)
Method to get the UI object for "Embed" action specific to this plugin. |
abstract java.lang.String |
getName()
Gives the name of the plugin |
abstract java.util.List |
getPurposes()
Gives the purpose(s) of the plugin |
java.lang.String |
getPurposesLabel()
Gives the display label for purpose(s) of the plugin |
abstract java.util.List |
getReadableFileExtensions()
Method to get the list of supported file extensions for reading |
abstract java.lang.String |
getUsage()
Method to get the usage details of the plugin |
abstract double |
getWatermarkCorrelation(byte[] origSigData,
byte[] watermarkData)
Method to check the correlation between original signature and the extracted watermark |
abstract java.util.List |
getWritableFileExtensions()
Method to get the list of supported file extensions for writing |
abstract void |
populateStdCmdLineOptions(CmdLineOptions options)
Method to populate the standard command-line options used by this plugin |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final java.lang.String PURPOSE_DATA_HIDING
public static final java.lang.String PURPOSE_WATERMARKING
protected OpenStegoConfig config
Constructor Detail |
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public OpenStegoPlugin()
Method Detail |
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public abstract java.lang.String getName()
public abstract java.util.List getPurposes()
public abstract java.lang.String getDescription()
public final java.lang.String getPurposesLabel()
public abstract byte[] embedData(byte[] msg, java.lang.String msgFileName, byte[] cover, java.lang.String coverFileName, java.lang.String stegoFileName) throws OpenStegoException
msg
- Message to be embeddedmsgFileName
- Name of the message file. If this value is provided, then the filename should be embedded in
the cover datacover
- Cover data into which message needs to be embeddedcoverFileName
- Name of the cover filestegoFileName
- Name of the output stego file
OpenStegoException
public abstract java.lang.String extractMsgFileName(byte[] stegoData, java.lang.String stegoFileName) throws OpenStegoException
stegoData
- Stego data containing the messagestegoFileName
- Name of the stego file
OpenStegoException
public abstract byte[] extractData(byte[] stegoData, java.lang.String stegoFileName, byte[] origSigData) throws OpenStegoException
stegoData
- Stego data containing the messagestegoFileName
- Name of the stego fileorigSigData
- Optional signature data file for watermark
OpenStegoException
public abstract byte[] generateSignature() throws OpenStegoException
OpenStegoException
public final double checkMark(byte[] stegoData, java.lang.String stegoFileName, byte[] origSigData) throws OpenStegoException
stegoData
- Stego data containing the watermarkstegoFileName
- Name of the stego fileorigSigData
- Original signature data
OpenStegoException
public abstract double getWatermarkCorrelation(byte[] origSigData, byte[] watermarkData) throws OpenStegoException
origSigData
- Original signature datawatermarkData
- Extracted watermark data
OpenStegoException
public abstract byte[] getDiff(byte[] stegoData, java.lang.String stegoFileName, byte[] coverData, java.lang.String coverFileName, java.lang.String diffFileName) throws OpenStegoException
stegoData
- Stego data containing the embedded datastegoFileName
- Name of the stego filecoverData
- Original cover datacoverFileName
- Name of the cover filediffFileName
- Name of the output difference file
OpenStegoException
public abstract boolean canHandle(byte[] stegoData)
stegoData
- Stego data containing the message
public abstract java.util.List getReadableFileExtensions() throws OpenStegoException
OpenStegoException
public abstract java.util.List getWritableFileExtensions() throws OpenStegoException
OpenStegoException
public abstract void populateStdCmdLineOptions(CmdLineOptions options) throws OpenStegoException
options
- Existing command-line options. Plugin-specific options will get added to this list
OpenStegoException
public abstract java.lang.String getUsage() throws OpenStegoException
OpenStegoException
public abstract PluginEmbedOptionsUI getEmbedOptionsUI(OpenStegoUI stegoUI) throws OpenStegoException
stegoUI
- Reference to the parent OpenStegoUI object
OpenStegoException
public abstract java.lang.Class getConfigClass()
public final OpenStegoConfig createConfig() throws OpenStegoException
OpenStegoException
public final OpenStegoConfig createConfig(java.util.Map propMap) throws OpenStegoException
propMap
- Property map
OpenStegoException
public final OpenStegoConfig createConfig(CmdLineOptions options) throws OpenStegoException
options
- Command-line options
OpenStegoException
public final OpenStegoConfig getConfig()
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