摘要
常规地理信息安全加密方法提取信息敏感数据时,忽略了数据时间序列的影响,提取耗时较长,导致信息加密后的抗攻击能力较低,因此,提出基于国密算法的地勘单位测绘地理信息安全加密方法。通过滑动窗口分段方法分割数据时间序列,保证数据的完备性,从而减少提取耗时,对敏感数据进行模数分解,得到对数较小的素数,基于分解结果,采用国密算法对信息进行批次性加密,组合成最终密文,完成地理信息的安全加密。实验结果表明:利用所提方法加密地理信息后,加密的置乱性较好,有效保证了测绘地理信息的私密性。
When extracting information sensitive data with conventional geographic information security encryption methods,the impact of data time series is ignored,and the extraction takes a long time,resulting in low anti attack capability after information encryption.Therefore,a security encryption method for surveying and mapping geographic information of geological exploration units based on the national security algorithm is proposed.The sliding window segmentation method is used to segment the data time series to ensure the completeness of the data,so as to reduce the extraction time.The sensitive data is modulus decomposed to obtain the prime number with smaller logarithms.Based on the decomposition result,the national security algorithm is used to encrypt the information data in batches and combine them into the final ciphertext,so as to achieve the security encryption of geographic information.The experimental results show that the encryption of geographic information by this method has a good scrambling property and effectively ensures the privacy of the mapping geographic information.
作者
龙慧萍
LONG Hui-ping(Nanning Survey and Design Institute Group Co.,Ltd.,Nanning 530022 China)
出处
《自动化技术与应用》
2024年第4期85-88,98,共5页
Techniques of Automation and Applications
基金
2020年度国家档案局科技项目计划(2020-X-053)。
关键词
国密算法
测绘信息加密
地理信息
安全加密
national secret algorithm
encryption of surveying and mapping information
geographic information
security encryption
