第二次世界大战期间,日本海军密码曾四次落入美军之手:第一次是1940年5月。当时,一艘挪威的捕鲸船在白令海上打捞起一具带有救生圈的死尸。由于死尸已腐烂,分不清死者是哪国国籍,挪威船员就把死尸交给正在附近航行的美国海军巡逻艇。美海军人员检查死尸发现一包密码 During the Second World War, the Japanese Navy’s password fell four times into the hands of the U.S. military: the first was in May 1940. At that time, a Norwegian whaler salvaged a dead buoy with a lifebuoy on the Bering Sea. Since the corpse has decayed and can not tell where the deceased was from, the Norwegian crew handed over the dead to the U.S. Navy patrol boat sailing nearby. US Navy personnel check the corpse found a package of passwords