Abstract: This paper constructs a set of cryptogram security system for rural credit cooperatives based on domestic cryptographic algorithm. It transformed general cryptographic algorithm into domestic cryptographic algorithms for the system of corebank, frontbank, online bank, financial IC card and the second generation payment etc., which involved cryptographic applications. It solved the security problems of identity authentication, information integrity, repudiation and so on. It provided a secure and reliable cryptographic guarantee for the rural credit cooperatives. It enhanced selfcontrollable ability of information security core products and system for rural credit cooperatives, and improved the safety and security capability of rural credit cooperatives. It has a great significance to the popularization and application of domestic cryptographic algorithms.

Key words: domestic cryptographic algorithm, cryptographic service platform, key management system, data preparation system, host security machine

摘要： 基于商用密码算法构建一套农村信用社密码安全体系，对农村信用社核心系统、前置系统、网上银行系统、金融IC卡系统、人行二代支付系统等多个系统涉及到的密码应用环节进行国密改造，增强农村信用社信息安全核心产品以及系统的自主性，提高农村信用社信息系统安全保障能力.

关键词: 商用密码算法, 密码服务平台, 密钥管理系统, 数据准备系统, 密码机