4 ms·
Can people use a steganography app to communicate via innocuous images? 1. Take a picture. 2. Use app to insert message into picture, encrypt with passphrase.
by bo1024 4y ago
Can people use a steganography app to communicate via innocuous images?
1. Take a picture.
2. Use app to insert message into picture, encrypt with passphrase.
3. SMS picture to friend or upload to Iranian equivalent of imgur (if any is up).
4. Friend loads picture into app and types passphrase to get message.
I'm not sure what a good choice of app would be, but something good must exist?
- remram 4y agoThe point is that phone service and access to the outside internet is blocked. You can't get images out any more than you can get text out, so putting text in images does not help.
- giantrobot 4y agoIf data centers can make outside connections then steganography and internal (to Iran) routing can help get messages from protests to someone that can pass those through datacenter Internet links. Just being able to organize internally is super useful. The protestors don't need to use Facebook to organize effectively.
- bo1024 4y agoI thought the main goal was to help Iranians communicate with each other.
- mariojv 4y agoIs there any good open source or publicly usable steganography software with reasonable UX? Page 1 of Google shows this thing called OpenStego. I've heard of steganography but have no idea what tools are reputable in this space.
- rex_lupi 4y agoPixelKnot for Android, developed by Guardian Project: https://www.f-droid.org/en/packages/info.guardianproject.pixelknot/ https://www.f-droid.org/en/packages/info.guardianproject.pix...
- fareesh 4y agoDoes steganography break when Social media sites reprocess images? I.e. do you need to access the underlying raw bytes?
- bo1024 4y agoGreat point, probably most approaches break if the site is doing that.
- exikyut 4y agoI find MMS heavily compresses images to an absolutely unusable extent.