抗日战争爆发后,国民党军统局成立了一个密电组,聘请美国密码专家亚德雷任顾问,以日本军用密电为对象进行破译。1940年4月,蒋介石把在重庆的国民党各派系从事密电侦收和破译工作的7个机构合并,成立了军事委员会技术研究室,集中人力、物力、财力,加强密电情报 After the outbreak of the Anti-Japanese War, the KMT’s National Defense Agency established a secret electricity group and hired Adviser Adviser, the U.S. password expert, to crack down on Japan’s military secret electricity. In April 1940, Chiang Kai-shek merged the seven agencies engaged in the police investigation and crackdown of the Kuomintang factions in Chongqing to form a technical commission for the military commission, which concentrated manpower, material and financial resources and strengthened the secret intelligence report