Data encryption and decryption processing method in cloud network environment

摘要

A data encryption/decryption method including a web server, a web application server (WAS) receiving data, a database server (DB server) receiving a structured query language (SQL), and an encryption/decryption server to the WAS through a network, the data being transmitted between the encryption/decryption server and the WAS by an application repeater, the method includes performing encryption by filtering an encryption target by using a uniform resource identifier (URI) when the data is transmitted from the web server and transmitting data to be encrypted to the encryption/decryption server, and performing decryption by filtering a decryption target by using the SQL input from the WAS to the DB server and transmitting data to be decrypted to the encryption/decryption server.