在战争中,如果能破译敌方密码,往往就容易找到制胜的方法,一举击中对手的“七寸”,制其死命。因此,兵家历来重视密码的研制、使用和保护,也竭尽全力窃取对方的密码。在世界战争史上,围绕密码的争夺,上演了幕幕惊心动魄的没有硝烟的战争。 In the war, if you can decipher the enemy's password, often easy to find ways to win, hit opponents in one fell swoop, “seven inches” system of death. Therefore, the military has always attached importance to the development of the password, use and protection, but also make every effort to steal each other's password. In the history of world wars, a battle of no smoke was staged on the battle of passwords.