Let’s say I have a SAFE account with lots of files that I don’t want anyone to get access to, but one of these files is PDF with a presentation that I will show on a compromised computer. I don’t mind if the malware can access this single file, but I want to be sure that it wouldn’t be able to access any other files. I think similar situations will be very common. The way to solve this would be with a hardware device of some kind.
I guess this would be similar to using a hardware wallet for transferring SafeCoins, but I think such hardware should have features both to function the same way as bitcoin hardware wallets today and to be able to decrypting one or more files where you get a question on the screen on the external device if you want the files to be decrypted on the connected computer.
Would it be possible to write an app for Ledger Blue where you would see the list of files to be decrypted on the screen and then could click ok to accept?
If the Ledger Blue wouldn’t work. What kind of hardware would have to be made to make this work?