JPHS (JPHide/JPSeek) - Revision history

Parchivist at 15:01, 30 August 2023

2023-08-30T15:01:45Z

Parchivist at 09:18, 30 August 2023

2023-08-30T09:18:03Z

Parchivist at 21:59, 28 August 2023

2023-08-28T21:59:40Z

Parchivist: Created page with "{{FormatInfo |formattype=electronic |subcat=Encryption |subcat2=Steganography }} '''JPHS''' (JPHide, JPSeek, JPHSWin) by Allan Latham is a steganography program that hides in..."

2023-08-28T19:55:38Z

Created page with "{{FormatInfo |formattype=electronic |subcat=Encryption |subcat2=Steganography }} '''JPHS''' (JPHide, JPSeek, JPHSWin) by Allan Latham is a steganography program that hides in..."

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{{FormatInfo
|formattype=electronic
|subcat=Encryption
|subcat2=Steganography
}}

'''JPHS''' (JPHide, JPSeek, JPHSWin) by Allan Latham is a steganography program that hides information in [[JPEG]] files with password protection.

Source code and versions for DOS, Windows and Linux are available.

The design objective was not simply to hide a file but rather to do this in such a way that it is impossible to prove that the host file contains a hidden file. Given a typical visual image, a low insertion rate (under 5%) and the absence of the original file, it is not possible to conclude with any worthwhile certainty that the host file contains inserted data. Above 15% the effects begin to become visible to the naked eye. Of course some images are much better than others when used a host file - plenty of fine detail is good. A cloudless blue sky over a snow covered ski paradise is bad. A waterfall in a forest is probably ideal.

== Links ==
* [https://web.archive.org/web/20130326230517/http://linux01.gwdg.de/~alatham/stego.html Archived homepage]
* [http://ftp.gwdg.de/pub/linux/misc/ppdd/ Downloads]
* [https://www.neowin.net/forum/topic/717378-hide-file-inside-a-jpeg-image/ Tutorial]
* [https://www.youtube.com/watch?v=Iepp_B__968 Video tutorial] ([https://christianespinosa.com/blog/3-steps-to-hide-data-in-an-image-using-steganography/ related blog post])
* [https://www.provos.org/p/detection-with-stegdetect/ Stegdetect] - finds JPHS files
* [https://sourceforge.net/projects/ben4dstegdetect/ Ben-4D Steganalysis Software] - detects JPHSWin files
* [http://eprints.bournemouth.ac.uk/24621/1/NATO%20SPI13%281%29.pdf Study of how well JPHS evades detection]

@@ Line 5: / Line 5: @@
 }}
-'''JPHS''' (JPHide, JPSeek, JPHSWin) by Allan Latham is a steganography program that hides information in [[JPEG]] files with password protection.
+'''JPHS''' (JPHide, JPSeek, JPHSWin, JPHideandSeek) by Allan Latham is a steganography program that hides information in [[JPEG]] files with password protection.
 Source code and versions for DOS, Windows and Linux are available.
@@ Line 17: / Line 17: @@
 * [https://web.archive.org/web/20130326230517/http://linux01.gwdg.de/~alatham/stego.html Archived homepage]
 * [http://ftp.gwdg.de/pub/linux/misc/ppdd/ Downloads]
 * [https://www.neowin.net/forum/topic/717378-hide-file-inside-a-jpeg-image/ Tutorial]
 * [https://www.youtube.com/watch?v=Iepp_B__968 Video tutorial] ([https://christianespinosa.com/blog/3-steps-to-hide-data-in-an-image-using-steganography/ related blog post])
-* [https://www.provos.org/p/detection-with-stegdetect/ Stegdetect] - finds JPHS files
+* [https://www.provos.org/p/detection-with-stegdetect/ Stegdetect] - finds JPHS files, includes Stegbreak which can launch dictionary attacks against JPHS
 * [https://sourceforge.net/projects/ben4dstegdetect/ Ben-4D Steganalysis Software] - detects JPHSWin files
 * [http://www.spy-hunter.com/stegspy Detected by StegSpy]

@@ Line 21: / Line 21: @@
 * [https://www.provos.org/p/detection-with-stegdetect/ Stegdetect] - finds JPHS files
 * [https://sourceforge.net/projects/ben4dstegdetect/ Ben-4D Steganalysis Software] - detects JPHSWin files
 * [http://eprints.bournemouth.ac.uk/24621/1/NATO%20SPI13%281%29.pdf Study of how well JPHS evades detection]
 * [https://github.com/mmtechnodrone/SSAK SSAK] - GUI front end for file identification, data carving, hexdump and steganography programs that includes JPHS
 * [https://github.com/DominicBreuker/stego-toolkit Steganography Toolkit] - Docker image with a bunch of steganography tools including JPHS

@@ Line 10: / Line 10: @@
 The design objective was not simply to hide a file but rather to do this in such a way that it is impossible to prove that the host file contains a hidden file. Given a typical visual image, a low insertion rate (under 5%) and the absence of the original file, it is not possible to conclude with any worthwhile certainty that the host file contains inserted data. Above 15% the effects begin to become visible to the naked eye. Of course some images are much better than others when used a host file - plenty of fine detail is good. A cloudless blue sky over a snow covered ski paradise is bad. A waterfall in a forest is probably ideal.
@@ Line 20: / Line 22: @@
 * [https://sourceforge.net/projects/ben4dstegdetect/ Ben-4D Steganalysis Software] - detects JPHSWin files
 * [http://eprints.bournemouth.ac.uk/24621/1/NATO%20SPI13%281%29.pdf Study of how well JPHS evades detection]