Abstract: The characters of financial information system and the encryption algorithms are described. In addition, the encryption application of financial information system is analyzed. Basing on the above contents, the technical points and implementation method of the encryption algorithm promotion for financial information system is proposed. In addition, the practice of encryption algorithm promotion for financial information system is taken into account. It is proved that encryption algorithm promotion for financial information system is feasible and the engineering can drive the whole industry to promote.

Key words: encryption algorithm, financial information system, algorithm promotion, encryption, SM4

摘要： 首先阐述了金融领域信息系统的特点及密码算法的现状，分析了金融领域信息系统密码算法的具体应用.在此基础上，提出了金融领域密码算法升级的技术要点和实施路径，并结合金融信息系统密码算法升级的实践，验证了金融领域密码体系升级的可行性，有利于带动整个金融领域进行密码算法升级.

关键词: 密码算法, 金融信息系统, 算法升级, 加密, SM4算法中图法分类号TP309