说明：  数据库加密技术中散列函数的应用 介绍了散列函数的基本原理及设计要求,结合公开密钥加密方法中的数字证书及数字签名技术,探讨了散列函数在诸如口令保护用户访问权限鉴别和数据加密技术的应用
(database encryption technology hash function of the hash function on the basic principles and design requirements, combination of public key encryption method of digital certificates and digital signature technology, Discussion on the hash function such as password protection of users to identify and access permissions data encryption technology applications)