DATA ENCRYPTION AND DECRYPTION PROCESSING METHOD IN CLOUD NETWORK ENVIRONMENT

摘要

The present invention relates to a data encryption/decryption method including a web server, a web application server (WAS) for receiving personal information from the web server, and a database server (DB server) for receiving an SQL from the WAS, and comprising the steps of: (a) filtering an encryption/decryption object by means of a URI during the input of the personal information so as to transmit the personal information to be encrypted/decrypted to an encryption/decryption server when inputting the personal information; (b) filtering the encryption/decryption object by means of an SQL, which is inputted from the WAS to the DB server, so as to transmit the personal information to be encrypted/decrypted to the encryption/decryption server; (c) allowing the encryption/decryption server to encrypt the personal information, to be encrypted, and storing an encrypted value; and (d) transmitting the encrypted value from the encryption/decryption server to the WAS, wherein the encryption/decryption server is connected to the WAS through a network and steps (a) and (B) can be selectively performed.