摘要
由于云数据分散且存在动态变化,传统静态密钥已难以满足其安全需求。同时,传输过程中数据易遭篡改或丢失,缺乏有效的动态同步机制亦难以保障数据完整性。未加密或仅进行简单分片的数据,易被恶意攻击者还原,存在较大安全隐患。对于以上问题,文章提出一种基于时间戳同步的云存储数据加密方法,旨在提升手机取证中数据的完整性与可信度。该方法首先通过提取手机取证中云存储数据的关键字符以生成动态密钥,对数据进行加密;其次引入时间戳同步机制,实现加密数据的动态传输,保障传输过程的完整性;最后将加密数据划分并安全存储。实验结果表明,该方法在手机取证应用中具有较高的加密准确性与处理效率,可为取证工作提供可靠的技术支持。
Due to the dispersion and dynamic changes of cloud data,traditional static keys are difficult to adapt to the ever-changing encryption requirements.At the same time,the transmission process is prone to tampering or loss,and the lack of dynamic synchronization mechanism makes it difficult to guarantee data integrity.Unencrypted or simply fragmented data is easily restored by malicious attackers.To ensure the integrity and credibility of cloud storage data during mobile forensics,a timestamp synchronization encryption method for cloud storage data in mobile forensics is proposed.By generating keys for key characters in cloud storage data during mobile phone forensics,encrypted cloud storage data can be obtained.Based on the above data,combined with timestamp synchronization mechanism,dynamic transmission of cloud storage data is carried out to ensure the integrity of the data during transmission.Finally,the data is partitioned to achieve secure storage of encrypted data.The experimental results show that the cloud storage data timestamp synchronization encryption method in mobile forensics has high accuracy and efficiency,and can provide reliable technical support for mobile forensics work.
作者
丁丽萍
杜漠
黄昭颖
朱思霖
程冰
DING Liping;DU Mo;HUANG Zhaoying;ZHU Silin;CHENG Bing(Zhongshan Zhongke Real Number Technology Co.,Ltd.,Zhongshan,Guangdong 528437,China;Guangdong Zhongke Real Number Technology Co.,Ltd.,Guangzhou 511400,China)
基金
中山市科学技术局引进高端科研机构创新专项资金:电子数据取证系列产品研发及产业化项目(2020AG007)。
关键词
数据加密
时间戳
隐私数据
手机取证
云存储
data encryption
timestamp
privacy data
mobile evidence collection
cloud storage
