文件列表:

openstego-0.5.2 (0, 2009-03-31)
openstego-0.5.2\doc (0, 2009-03-31)
openstego-0.5.2\doc\api (0, 2009-03-31)
openstego-0.5.2\doc\api\net (0, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge (0, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego (0, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\ui (0, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\util (0, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\util\dct (0, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\util\dwt (0, 2009-03-31)
openstego-0.5.2\doc\api\resources (0, 2009-03-31)
openstego-0.5.2\lib (0, 2009-03-31)
openstego-0.5.2\LICENSE (17987, 2009-03-31)
openstego-0.5.2\doc\api\allclasses-frame.html (4635, 2009-03-31)
openstego-0.5.2\doc\api\allclasses-noframe.html (4095, 2009-03-31)
openstego-0.5.2\doc\api\constant-values.html (22905, 2009-03-31)
openstego-0.5.2\doc\api\deprecated-list.html (4872, 2009-03-31)
openstego-0.5.2\doc\api\help-doc.html (8391, 2009-03-31)
openstego-0.5.2\doc\api\index-all.html (124869, 2009-03-31)
openstego-0.5.2\doc\api\index.html (901, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\DataHidingPlugin.html (21198, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\OpenStego.html (44574, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\OpenStegoConfig.html (23430, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\OpenStegoCrypto.html (13875, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\OpenStegoException.html (32723, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\OpenStegoPlugin.html (46779, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\WatermarkingPlugin.html (20424, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\package-frame.html (1887, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\package-summary.html (7750, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\package-tree.html (7478, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\ui\OpenStegoFrame.html (113803, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\ui\OpenStegoUI.html (86999, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\ui\PluginEmbedOptionsUI.html (81913, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\ui\package-frame.html (1237, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\ui\package-summary.html (6702, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\ui\package-tree.html (9384, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\util\CmdLineOption.html (19109, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\util\CmdLineOptions.html (18927, 2009-03-31)
openstego-0.5.2\doc\api\net\sourceforge\openstego\util\CmdLineParser.html (18613, 2009-03-31)
... ...

OpenStego v0.5.2 ================ OpenStego is a tool developed in Java for steganography. It supports optional encryption of data before embedding in the image. Plugins for different steganographic algorithms are supported. As of now, the following algorithms are provided: - LSB : Embedding data in Least Significant Bits (LSB) of image pixels - RandomLSB : Embedding data in Least Significant Bits (LSB) of image pixels in a pseudo-random order, to avoid steganalysis Support for other algorithms like FFT, etc. would be added later using plugins. USAGE: ------ For GUI: java -jar \openstego.jar For command line interface: java -jar \openstego.jar [options] The first argument must be a command. Valid commands are: embed, --embed Embed message into cover file extract, --extract Extract message from stego file algorithms, --algorithms List down supported steganography algorithms readformats --readformats List down supported formats for cover file writeformats, --writeformats List down supported formats for stego file help, --help Display this help. To get help on options specific to an algorithm, provide the name of the algorithm using '-a' option Following option is common for all commands other than 'algorithms': -a, --algorithm Name of the steganography algorithm to use. List of the supported algorithms can be retrieved using 'algorithms' command 'embed' options: -mf, --messagefile Source message/data file. If this option is not provided or '-' (without quotes) is provided as the value then the message data is read from stdin -cf, --coverfile Cover file in which the message will be embedded. This option supports '*' and '?' wildcards for filename. If wildcard filename is provided then make sure that it is surrounded by double quotes. Multiple filenames can also be provided by separating them with ';' (semi-colon). If the wildcard expression returns more than one file, then '-sf' option is ignored, and each coverfile is overwritten with the corresponding generated stegofile -sf, --stegofile Output stego file containing the embedded message. If this option is not provided or '-' (without quotes) is provided as the value then the stego file is written to stdout -c, --compress Compress the message file before embedding (default) -C, --nocompress Do not compress the message file before embedding -e, --encrypt Encrypt the message file before embedding -E, --noencrypt Do not encrypt the message file before embedding (default) -p, --password Password to be used for encryption. If this is not provided then prompt will be displayed for entry 'extract' options: -sf, --stegofile Stego file containing the embedded message -xf, --extractfile Optional filename for the extracted data. Use this to override the filename embedded in the stego file -xd, --extractdir Directory where the message file will be extracted. If this option is not provided, then the file is extracted to current directory -p, --password Password to be used for decryption. If this is not provided then prompt will be displayed for entry (if the message is encrypted) Examples: To embed secret.txt into wallpaper.png and generate the output into test.png: java -jar \openstego.jar embed -a lsb -mf secret.txt \ -cf wallpaper.png -sf test.png OR java -jar \openstego.jar --embed --algorithm=lsb \ --messagefile=secret.txt --coverfile=wallpaper.png --stegofile=test.png To extract embedded data from test.png to /data directory: java -jar \openstego.jar extract -a lsb -sf test.png -xd /data OR java -jar \openstego.jar extract --algorithm=lsb \ --stegofile=test.png --extractdir=/data Piping example: ls -R | java -jar \openstego.jar embed -a lsb > test.png Wildcard example (Please note that the double quotes are important): java -jar \openstego.jar embed -a lsb \ -cf "img???.png;wall*.png" -mf watermark.txt PLUGINS HELP: ------------- Please use the following command to get plugin specific help: java -jar \openstego.jar -help -a ADDING NEW PLUGIN: ------------------ To add a new plugin, the following abstract classes must be implemented: - net.sourceforge.openstego.OpenStegoPlugin - net.sourceforge.openstego.ui.PluginEmbedOptionsUI Read the API documentation for the details of the methods to be implemented. In addition, the following utility class can be used to handle multilingual string labels for the plugin: - net.sourceforge.openstego.util.LabelUtil A new namespace should be added to LabelUtil class for each new plugin. Same namespace can also be used for exception messages while throwing OpenStegoException. After implementing the plugin classes, create new file named "OpenStegoPlugins.external" and put the fully qualified name of the class which implements OpenStegoPlugin in the file. Make sure that this file is put directly under the CLASSPATH while invoking the application. Please refer to the "net.sourceforge.openstego.plugin.lsb" package sources for sample plugin implementation. TODO: ----- - Add support for more algorithms - Add support for audio data to be used as cover file AUTHOR: ------- Samir Vaidya (syvaidya@gmail.com) Copyright (c) 2007-2009 SEE ALSO: --------- Project homepage: http://openstego.sourceforge.net Blog: http://syvaidya.blogspot.com LICENSE: -------- GNU General Public License 2.0 (GPL) (see LICENSE file)

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