说明：  1,针对对金融行业密钥不是很熟悉的人 2,介绍金融密钥体系的结构和概念 3，介绍PIN,PIK,MAC,MAK,BMK,MK等 4，即个人密码，PINBLOCK,PIK（个人标识码密钥），报文鉴别码MAC 5，介绍了报文鉴别技术，MAC，MD5，SHA 6，介绍了PINBLOCK生成方法 7，商业银行加密机部署
(1, for the financial industry, the key is not very familiar with the person 2, introducing the key system, the financial structure and the concept of three, introduced PIN, PIK, MAC, MAK, BMK, MK and other four, namely, personal password, PINBLOCK, PIK (Personal identification code keys), message authentication code MAC 5, describes the packet identification techniques, MAC, MD5, SHA 6, describes the PINBLOCK generation method 7, commercial banks, security devices and the deployment of)