【作者】 李立召；

【导师】 焦素云；

【作者基本信息】 长春工业大学 ， 计算机软件与理论， 2011， 硕士

【摘要】 云计算、云安全与云存储逐渐走进人们的生活,成为研究的热点,其相关技术已经逐步渗入计算机及其相关的行业。随着现代化信息社会的到来,数据的安全存储就变得日益重要。本文以传统的策略存储作为切入点,将其策略存储进行比较改进,以适应云安全策略存储的需求。策略存储技术是用来存储用户创建的策略及其相关的策略信息。策略仓库能够在集中管理和处理多个策略及其相关信息。目前流行的策略仓库通常是关系型数据库策略存储或目录服务器策略存储,还可以是具有某种固定格式的文件,例如XML文件格式。关系型数据库,是指借助实体关系模型来组织数据的数据库,采用数学概念和集合代数的方法来处理数据库中的各类关系和数据。LDAP是轻量级目录访问协议,现在已经成为网络中提供目录服务的一种IETF开放标准。但以上两种策略存储都属于静态策略存储,而在实际使用中,策略之间存在着某种依赖关系,而且修改更新比较频繁,不适合用传统的方式存储。为了解决这类问题,从而引入了基于形式概念分析的动态策略存储。区别于静态策略,动态策略更能适应不断变化着的策略,能够实时的更新自己的策略仓库,以便适应云安全网络环境不断变化的客户要求,不断变化的策略组合,不断变化的本地策略和网络策略之间的冲突,本文设计了基于形式概念分析的策略存储模型。根据实际问题域定义符合这种情形的形式背景,根据该形式背景构造出所有节点和边,完成概念格的模型构造,从而得到对象及其属性之间的偏序关系,构造出符合实际情况的策略仓库。更多还原

【Abstract】 Cloud computing, security and cloud storage came into people’s lives gradually, become a hot research, and its related technologies have been gradually into the computer and related industries. With the advent of modern information society, the security of data storage becomes increasingly important. In this paper, the strategy of traditional storage as a starting point to compare the improvement of its storage strategy to meet the needs of cloud security storage strategy.Policy storage technology is used to store user-created policies and related policy information. Strategy warehouse can centrally manage storage and processing of multiple strategies and related information. Popular strategy for storage is usually stored in a relational database or directory server storage policy strategy, it can be fixed with some file formats, such as XML file format.Relational database using entity relationship model is to organize data in the database, using a collection of mathematical concepts and algebraic approach to the relationship between various types of database and data. LDAP is the Lightweight Directory Access Protocol, the network has now become a kind of directory services to provide open IETF standards.However, the above two strategies are all stored in static storage strategies, and in actual use, there are a large number of policy updates and changes, the two static policies are stored on the show themselves were insufficient. To solve this problem, which introduces the formal concept analysis based on the dynamic storage strategies. Different from the static strategy, dynamic strategy can adapt to changing policy better, can update their strategies in real-time warehouse, in order to secure the network environment to adapt to the cloud changing customer requirements and constantly changing mix of strategies, changing the local policy and network conflict between policy, this paper design a strategy based on formal concept analysis storage model. Meet the definition of the problem domain based on the actual situation in the form of this background, the background is constructed according to the form of all the nodes and edges to complete the concept lattice model construction, resulting in objects and their partial order between attributes is constructed in line with the actual situation Strategy warehouse.更多还原