Hide Secret Messages In Facebook Photos With My Chrome Extension
Security and privacy
steganography
SHOW HN2013
Hide Secret Messages In Facebook Photos With My Chrome Extension
Hide Secret Messages In Facebook Photos With My Chrome Extension
owencampbellmoore.com#steganography#jpeg steganography#facebook#hidden messages#chrome extension
How HN took it
6 positive, 10 neutral or asking, 1 mixed, 13 critical, out of 30 comments about the project. Thread score -0.13.
Privacy: 0 for, 10 againstIdea: 4 for, 1 againstExecution: 1 for, 2 againstDocs: 1 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Interesting proof of concept that survives Facebook JPEG recompression
From 3 comments
I built this Steganography tool as a research project within Oxford University. The goal was for users to be able to communicate via Facebook without anybody being able to even…
owencm on HNTo be fair, this is probably more of a cool toy and proof of concept than something you would use for industry- or military-grade security needs. According to Owen's pdf itself,…
rwissmann on HNExcellent reference implementation of a covert communication channel. Well done.
jaytaylor on HN
Objections
Steganography is detectable in principle; the claim of undetectability is overstated
From 3 comments
I remember reading an article where Al Qaeda is using the same practices for sending messages to hidden members via eBay (and other sites). Here is an article (not the same one I…
elliottcarlson on HNthe presence of steganography has long been detectable in images and audio. whether it can be decoded depends on the cipher (if any) that's used for the actual message, but this…
leeoniya on HNRE: "These messages are hidden in photos so they cannot be detected by Facebook, Governments or prying friends." I think this claim is overly broad and not particularly true. The…
gallerytungsten on HN
Government or Facebook could scan uploads for hidden messages
From 2 comments
"Never" is a long time, and it's plausible the NSA might be interested in a list of names of people who have gone to extremes to hide from them. Is the detection process so…
goodside on HNIf they can handle recompressing 300+ million photos a day they could proabably add a quick check for steganograpic markers and dump those images off to a separate queue for…
ams6110 on HN
Seems an inefficient way to send encrypted messages
From 1 comment
I understand what steganography is, but what does this solve? Why would you want to send encrypted messages in a photo across facebook? It just seems really inefficient way of…
jpswade on HN
Requests
Make the project open source so it can be used from the command line
From 1 comment
Why not make it proper open source so it's not necessary to extract code from the PDF? I'd like to use this from the command-line. Thanks.
iso8859-1 on HN
Mirror or host the paper more reliably
From 1 comment
Just wanted to toss this out there: I noticed that your host for the PDF was dropbox, which often turns off access if a document gets a lot of traffic. Because of that, I…
lelandbatey on HN
Questions
Which JPEG steganography algorithm is used
From 1 comment
Great work! Which JPEG stego algorithm do you use (if you don't mind sharing)? Edit: Found the linked paper. Thanks!
ksolanki on HN
What problem does this solve
From 1 comment
What problem does this solve?
jpswade on HN
Alternatives named
StegDetect and other steganography tools
From 1 comment
I remember reading an article where Al Qaeda is using the same practices for sending messages to hidden members via eBay (and other sites). Here is an article (not the same one I…
elliottcarlson on HN
Existing image steganography tools that do not handle recompression
From 1 comment
Hundreds of steganography tools already exist for making images which can be shared on any medium where recompression is not an issue…
owencm on HN
Umshade Chrome text-encryption extension
From 1 comment
I'm the author of umshade (http://umshade.it), which aims to bring a chrome extension that provides proof-of-concept grade text-encryption to any website. Obviously I like what…
97-109-107 on HN