Apparatus and method for protecting transmission of communication content

An apparatus for protecting transmission of communication content, the apparatus comprising:

• a server comprising a server-side application program which delivers a key distribution command if a request for content is received and transmits the content if key distribution is completed;
• a server-side encryption key management module which creates and provides an encryption key;
• a server-side near field communication (NFC) module which performs key distribution by transmitting the encryption key created in the encryption key management module;
• a server-side encryption/decryption module which encrypts the contents by using the encryption key;
• and
• a server-side Bluetooth module which transmits the encrypted content
• a client comprising a client-side application program which requests content from the server and receives the requested content;
• a client-side encryption key management module which stores an encryption key distributed by the server and provides a decryption key in order to decrypt encrypted content;
• a client-side near field communication (NFC) module which receives the encryption key distributed by the server-side NFC module and delivers the encryption key to the client-side encryption key management module;
• a client-side encryption/decryption module which decrypts the encrypted content received from the server to provide the content to the server-side application program;
• and
• a client-side Bluetooth module which transmits the encrypted content received from the server to the client-side encryption/decryption module.

A method for protecting transmission of communication content, the method comprising:

• transmitting content through encryption of the content by a server comprising a second near field communication (NFC) module having a key distribution function;
• receiving the transmitted content from the server, by a client comprising a first NFC module;
• and
• receiving a key distributed by the second NFC module, by the client to decrypt the encrypted content received from the server.