3 ms·
Off-topic, but this reminds me of a crazy idea I had and never worked on (like a lot of ideas): Time-locked device encryption for when you're traveling through
by amingilani 7y ago
Off-topic, but this reminds me of a crazy idea I had and never worked on (like a lot of ideas): Time-locked device encryption for when you're traveling through borders that are known to search your electronic devices and/or install malware.
Basically, ransomware, but the good kind that encrypts all the data on your device and holds the key until:
A. You've passed the border (or checkpoint)
B. You've securely authenticated yourself
C. Are sure your device wasn't tampered with
- yjftsjthsd-h 7y ago> B. You've securely authenticated yourself Probably is going to be a fatal flaw, since it leaves you open to the "rubber hose" sector of attacks (in various legal forms).
- amingilani 7y agoAgreed, that's why all those conditions must be met and not just one. Ofcourse, you can always extend the condition, like D. Have a second person, not traveling with you, vouch that you're safe.
- pizza 7y agoInterestingly enough, Julian Assange (among others) conducted research into encrypted filesystems that relied upon deniable encryption [0]. Depending upon which key you fed it, it would reveal different files. If you had a robust solution to time-locked encryption, that in itself would be worth a lot! (Anybody keeping up to tabs on that stuff know about whether or not its achievable / what the SOTA is?) [0] https://en.wikipedia.org/wiki/Rubberhose_(file_system) https://en.wikipedia.org/wiki/Rubberhose_(file_system)
- amingilani 7y agoI'm sorry, when I said time-locked, I meant an app running in a server releases the key to you after a certain amount of time :)
- saagarjha 7y agoWhy can’t they just detain you until you get the key?
- amingilani 7y agoThey can, it'd be a waiting game at that point. But as I mentioned elsewhere, you could also add more safeguards like a friend vouching that you're safe, as well.
- kortilla 7y agoWell if you claim to not be able to unlock it they will probably just give you the option of either: waiting until you can, sending you back, or leaving your device with them at the border.
- WrtCdEvrydy 7y agoHonestly, better just to do a multiple person encryption. Locks the files, sends a message to your peeps telling them to tell you this keyphrase next time they see you.