[Karellen]

I think you mean rubber-hose cryptanalysis.

I am amused by the idea of rubber-hose cryptography though - beating on the data until it encrypts itself!

[pavel_lishin]

Actually, an actual example would be cutting out someone's tongue to prevent them from speaking.

(Obviously this only worked for illiterates.)

[Karellen]

That wouldn't be cryptography (hidden writing). It would be cryptology (hidden speech, from "logos" rather than "graphos") or alogy (lack of speech).

/pedant

(sorry)