基于云端辅助的国土资源数字化档案信息自动加密方法

Automatic Encryption Method of Land and Resources Digital Archives Information Based on Cloud Assistance

为了保护国土资源数字化档案的安全性,解决由于云端监听导致信息被窃取的问题,提出基于云端辅助的档案信息自动加密方法。初始化加密体系中主要对象,生成各对象的公钥和私钥对。为防止提交给云的档案信息被窃取,拆分脱敏处理数据,再与已知假名组互相搭配后储存至云端。最后分段线性映射加密文件,对云端储存的数据明文和密钥字节做异或运算,完成数据储存加密。实验证明所提方法的加密性能较好,运算速度快,实际应用价值较高。

In order to protect the security of digital archives of land and resources and solve the problem of information theft caused by cloud monitoring,an automatic encryption method of archives information based on cloud assistance is proposed.It initializes the main objects in the encryption system and generates the public key and private key pairs of each object.In order to prevent the file information submitted to the cloud from being stolen,the desensitization data is split,matched with the known pseudonym group and stored in the cloud.Finally,the segmented linear mapping encryption file performs XOR operation on the data plain-text and key bytes stored in the cloud to complete data storage encryption.Experiments show that the proposed method has good encryption performance,fast operation speed and high practical application value.