Design and implementation of database encryption system for cloud environment

Cloud computing has many challenges while providing near-infinite storage capacity, powerful computing power and economic benefits. Security issues are considered to be the biggest challenges facing cloud computing today. Because the server in the cloud environment is considered to be untrustworthy and does not have the authority to obtain the key, the cloud server cannot parse the encrypted data and limit the processing capability of the cloud platform. In view of the above problems, we designed the database encryption system in the cloud environment, introduced the access control module and the encryption module based on the SQL statement, developed the database encryption system using the Java language, and deployed the system in the cloud environment.. Experiments show that the cloud data server can still guarantee higher query traffic after using the encryption system to meet the needs of the actual application environment.