Kasai是基于Java开发的开源RBAC软件 Kasai系统的优点：基本上实现了用户users(USERS)、角色roles(ROLES)、目标objects(OBS)、操作operations(OPS)、许可权permissions(PRMS)五个基本数据元素。同时Kasai也引入了Group的概念。 -Kasai is a Java-based open source development RBAC system software Kasai advantages: Basica

用Java来实现RSA加密算法，对网络安全有着非常重要的作用。-Use Java to implement RSA encryption algorithm, network security has a very important role.

客户关系管理（CRM）在当今企业运营中扮演着重要角色，公司为提高核心竞争力(Customer Relationship Management (CRM) plays an important role in today's business operation.)