摘要
国土调查数据具有重要价值,其安全保障至关重要。然而,现有地理信息数据安全技术往往普适性强,未能充分结合国土调查数据的独有特征,导致直接应用时存在安全防护不足和效率低下的问题。为此,深入研究国土调查数据的加密实现技术,并提出一种新的国土调查数据加密算法。针对国土调查数据的属性特征,设计了字段粒度的变密钥加密算法,有效避免数据统计特征的泄露。针对国土调查数据的空间特征,设计了基于混沌系统的区域置乱加密算法,在保证地理空间稳定性的前提下,可与访问控制模型良好集成,实现对国土调查数据的有效加密。实验分析表明,提出的加密算法具有良好的安全性和效率,尤其适用于移动端应用环境。
Territory survey data holds significant value,and ensuring its security is crucial.However,the existing geographical information data security techniques are often general-purpose and do not fully account for the unique characteristics of territory survey data,leading to inadequate security protection and low efficiency when directly applied.To address this problem,we delved into the encryption implementation technology for territory survey data and proposed a new encryption algorithm.For the attribute features of territory survey data,we designed a variable-key encryption algorithm with field-level granularity,effectively preventing the leakage of statistical data features.For the spatial features,we designed a region scrambling encryption algorithm based on chaotic system,which could be well integrated with the access control model under the premise of ensuring geospatial stability,to achieve effective encryption of territory survey data.Experimental analysis shows that the proposed encryption algorithm offers good security and efficiency,and is particularly suitable for mobile application environment.
作者
祁琼
段志强
吕婧
张斌
QI Qiong;DUAN Zhiqiang;LYU Jing;ZHANG Bin(Hubei Spatial Planning Institute,Wuhan 430071,China;School of Resource and Environmental Sciences,Wuhan University,Wuhan 430079,China)
出处
《地理空间信息》
2025年第10期15-19,共5页
Geospatial Information
关键词
国土调查数据
空间数据处理
数据加密
territory survey data
spatial data processing
data encryption
