访问控制是一种重要的信息安全技术,在许多领域中有重要作用.访问控制通过控制用户对系统信息资源的访问,来保证信息资源的保密性和完整性.论文详细综述了多种典型的访问控制模型的特点、实现形式及应用领域,简要阐述了其优缺点,分析了其发展趋势.%Access control is an important information security technology, which plays an important role in many fields. By controlling the user's access to information and resource, access control ensures the confidentiality and integrity of system. In this paper, a survey on recent researches of access control model is presented, the characters and realization method of these access control models are explained, analyzed and compared their characteristics are also analyzed and compared simply. Furthermore, some contents being researched currently are pointed out and the development trends are analyzed.
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