摘 要
随着智能城市的发展，数据量呈指数级增长，数据库安全面临前所未有的挑战。为此，本文提出一种面向智能城市的数据库安全架构设计与实现方案，旨在构建一个高效、可靠且灵活的安全防护体系。该研究基于智能城市多源异构数据特点，综合运用访问控制、加密技术、审计机制等手段，提出分层式数据库安全架构模型。通过引入细粒度访问控制策略，确保不同用户角色按需获取数据；采用自适应加密算法，平衡数据安全性和性能开销；建立全面的审计跟踪系统，实现对异常行为的有效监测。实验结果表明，所提架构在保证数据完整性、保密性的同时，显著提升了查询效率和响应速度，有效降低了安全风险。特别是在大规模并发访问场景下，系统仍能保持稳定运行，展现出良好的扩展性和鲁棒性。
关键词：智能城市数据库安全 分层式安全架构 细粒度访问控制
Abstract
With the development of smart cities, the amount of data increases exponentially, and the database security is facing unprecedented challenges. Therefore, this paper proposes a design of database security architecture and implementation scheme for smart city, aiming to build an efficient, reliable and flexible security protection system. Based on the characteristics of multi-source heterogeneous data in smart cities, this research proposes a hierarchical database security architecture model by means of access control, encryption technology, audit mechanism and other means. By introducing fine-grained access control strategy, ensure that different user roles obtain data on demand; adopt adaptive encryption algorithm to balance data security and performance overhead; and establish a comprehensive audit tracking system to realize effective monitoring of abnormal behavior. The experimental results show that the proposed architecture not only ensures the data integrity and confidentiality, but significantly improves the query efficiency and response speed, and effectively reduces the security risks. Especially in the large-scale concurrent access scenarios, the system can still maintain a stable operation, showing good scalability and robustness.
Keyword:Smart City Database Security Hierarchical Security Architecture Fine-Grained Access Control
目 录
1绪论 1
1.1智能城市数据库安全的背景与意义 1
1.2国内外研究现状综述 1
1.3本文研究方法概述 2
2智能城市数据库安全需求分析 2
2.1数据完整性保障机制 2
2.2数据隐私保护要求 2
2.3多源异构数据融合安全 3
2.4用户访问控制策略 4
3数据库安全架构设计 4
3.1分层架构模型构建 4
3.2核心组件功能设计 5
3.3安全协议选择与实现 5
3.4异常检测与响应机制 6
4安全架构关键技术实现 6
4.1加密算法优化方案 6
4.2身份认证系统开发 7
4.3数据审计追踪体系 8
4.4性能评估与测试结果 8
结论 9
参考文献 10
致谢 11
随着智能城市的发展，数据量呈指数级增长，数据库安全面临前所未有的挑战。为此，本文提出一种面向智能城市的数据库安全架构设计与实现方案，旨在构建一个高效、可靠且灵活的安全防护体系。该研究基于智能城市多源异构数据特点，综合运用访问控制、加密技术、审计机制等手段，提出分层式数据库安全架构模型。通过引入细粒度访问控制策略，确保不同用户角色按需获取数据；采用自适应加密算法，平衡数据安全性和性能开销；建立全面的审计跟踪系统，实现对异常行为的有效监测。实验结果表明，所提架构在保证数据完整性、保密性的同时，显著提升了查询效率和响应速度，有效降低了安全风险。特别是在大规模并发访问场景下，系统仍能保持稳定运行，展现出良好的扩展性和鲁棒性。
关键词：智能城市数据库安全 分层式安全架构 细粒度访问控制
Abstract
With the development of smart cities, the amount of data increases exponentially, and the database security is facing unprecedented challenges. Therefore, this paper proposes a design of database security architecture and implementation scheme for smart city, aiming to build an efficient, reliable and flexible security protection system. Based on the characteristics of multi-source heterogeneous data in smart cities, this research proposes a hierarchical database security architecture model by means of access control, encryption technology, audit mechanism and other means. By introducing fine-grained access control strategy, ensure that different user roles obtain data on demand; adopt adaptive encryption algorithm to balance data security and performance overhead; and establish a comprehensive audit tracking system to realize effective monitoring of abnormal behavior. The experimental results show that the proposed architecture not only ensures the data integrity and confidentiality, but significantly improves the query efficiency and response speed, and effectively reduces the security risks. Especially in the large-scale concurrent access scenarios, the system can still maintain a stable operation, showing good scalability and robustness.
Keyword:Smart City Database Security Hierarchical Security Architecture Fine-Grained Access Control
目 录
1绪论 1
1.1智能城市数据库安全的背景与意义 1
1.2国内外研究现状综述 1
1.3本文研究方法概述 2
2智能城市数据库安全需求分析 2
2.1数据完整性保障机制 2
2.2数据隐私保护要求 2
2.3多源异构数据融合安全 3
2.4用户访问控制策略 4
3数据库安全架构设计 4
3.1分层架构模型构建 4
3.2核心组件功能设计 5
3.3安全协议选择与实现 5
3.4异常检测与响应机制 6
4安全架构关键技术实现 6
4.1加密算法优化方案 6
4.2身份认证系统开发 7
4.3数据审计追踪体系 8
4.4性能评估与测试结果 8
结论 9
参考文献 10
致谢 11
