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Comment by edent | Hacker News Reader

That rather assumes that you have a convenient, fast, and unobtrusive way of destroying the list while being told "would you mind stepping over here, sir" in an airport full of security cameras.

The alternative - and much more practical suggestion - is not to travel with the codes. You run the risk of not being able to connect to the service - but at least no-one else can.

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Journalists concerned with being detained already wipe their data or ship SD cards separately for fear of being compelled to forfeit them. They can simply discard the list before they head to the airport.

The most practical way to use this for non-2fa sites would be to have an overly long, random password and save it in the browser's password manager. Delete the Firefox profile before you travel, and you can't be compelled to reveal the password you could never remember.

An easier alternative might be using Deniable Encryption (http://en.wikipedia.org/wiki/Deniable_encryption)

Rice paper doesn't taste too bad. How will they prove in court that my snack had security codes on it?

Startup idea: Security Snacks - one-time pads printed on pairs of snack foods

Sorry, couldn't decrypt messages, was hungry or keys got wet.

You can probably do this with love hearts or similar - buy a couple and reassemble two tubes as matched, randomly chosen one time pads. Entropy would be terrible though.

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