http://en.wikipedia.org/wiki/Rubber-hose_cryptanalysis
Marcus J. Ranum: „…the rubber-hose technique of cryptanalysis. (in which a rubber hose is applied forcefully and frequently to the soles of the feet until the key to the cryptosystem is discovered, a process that can take a surprisingly short time and is quite computationally inexpensive).“
Žel, ono to je vážně nejúčinnější, ani 2 hesla nepomohou. Rozhodně „ruské“ variantě útoku neodolají. :-(