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> And people have been compelled to provide passwords in the court of law

You can have encrypted data that accept two different passwords, producing different decrypted data of your choice. This is like the 2nd code that mute the home security alarm when you are forced to do it, but still calls the police.

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If you do that, and police have any evidence at all that you do this,then its useless from a legal perspective.

The courts will demand for both passwords or you'll get some nice sentencing for contempt of court.

Of course you could not tell anyone but that's a dangerous game.

Duress codes and embassy grade encryption are an interesting topic. Attempting to address the real world implications of "rubber hose cryptanalysis" is increasing important.

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