METHOD FOR DATA ENCRYPTION AND DECRYPTION USING LOCATION INFORMATION

摘要

PURPOSE: An encryption method and a decoding method of data using a location information are provided to generate a security key based on location information of user, thereby encrypting the data safely. CONSTITUTION: Data is encrypted using a data encryption key for a session key. A geographic location which the encrypted data is able to decode is determined. A location key is generated based on the determined location information. A code block calculates the generated location key and the data encryption key and encrypts value calculated with public key of data user and is generated. The generated code block and the encrypted data are provided for the data user.