安全数据库 meaning in English
safety database
security database
Examples
- The foreign study on secure database has been already riper , and has released the relevant products , but the domestic study on secure database is still very unripe . because we can n ' t buy these products from foreign country for security problems , we must study our own secure database
但国内对安全数据库的研究还很不成熟，并且由于涉及到国家安全国外的产品不向中国出口，所以必须要研究自己的安全数据库以弥补这方面的空白。 - First of all we introduce the concept of the secure database and classification of the secure database , then we introduce the concept and research current situation of the inference channels in multilevel secure database . we describe some methods to detect and eliminate inference channels
本文首先介绍了安全数据库的概念和安全数据库的分级，然后介绍了推理通道的概念以及多级安全数据库中推理通道的研究现状，并且描述了一些检测和消除推理通道的方法。 - Then , the paper summaries disadvantages of traditional concurrency controls under multilevel security condition and introduces multilevel security dbms concurrency control . after summarizing the related research work , we present a multi level transaction model to solve the convert channel and starvation problems in concurrent control under blp multi level security model
本文首先分析了传统的数据库并发控制各自存在的优缺点,总结了传统并发控制在多级安全条件下存在的问题,由此引出了多级安全数据库并发控制机制。在总结了已有的研究基础上,针对blp多级安全模型下并发控制产生隐通道和饥饿问题,本文提出了一种多级事务模型- - - nhstm模型。 - In the beginning of the thesis , we introduce the security model and critical technique for developing bl level security spatial database ; especially describe the models of discretionary access control and mandatory access control . then we indicate the deficiency of the comparison of the security label in the practical application , and give the improved rules of security label comparison
本文首先介绍了开发b1级安全数据库的安全模型及其关键技术，着重描述了自主和强制访问控制的模型，然后指出blp模型安全级的比较在实际应用中的不足，给出改进的安全级比较规则。 - First , by analysing the disadvangtages of the decomposition and recovery algorithm in the usual security model , a new algorithm of double structure tables , which is suitble for master - slaver structure tables , is presented in this paper . second , in resolving the semantic ambiguity and operational incompleteness easily emerged in master - slaver structure tables , an improved master - slaver structure table model and relative decomposition and recovery algorithm are provided . third , considering the merits and demerits of security model , a multilevel secure transaction model is defined on the basis of security model
本文通过分析以往安全模型的分解和恢复算法的缺点,提出了一个适合于主从结构表这种双结构表安全模型的分解和恢复算法;针对主从结构表安全模型容易产生语义模糊性和操作不完备性等问题,提出了一个改进的主从结构表安全模型,并提出了其分解和恢复可行方法;讨论了安全模型的优缺点,定义了建立在安全模型基础之上的多级安全事务模型,分析了多级事务面临的众多难题,提出了一个安全、正确的多级事务调度算法;根据上述的诸多理论,开发了一个多级安全数据库管理系统的原型系统。