Method and system for secure communication

Abstract

A method and system for secure communication is provided. The method for secure communication with devices includes: obtaining a parameter for protecting a content; authenticating each other by exchanging a certificate with the device; and exchanging a key with the device using a key authenticated through the certificate to establish a secure authenticated channel with the device. Accordingly, it is possible to establish the secure authenticated channel and perform secure communication by computing a secure authenticated channel key.

1 . A method for secure communication, performed by a first device, the method comprising:
 receiving parameters from a second device, wherein the parameters comprising a device identifier of the second device, a security level and a license protection mode level; and   authenticating the second device using a certificate based on at least one of the received parameters,   wherein the security level includes a parameter for setting a level related to integrity and confidentiality during secure communication between the first device and the second device.   
     
     
         2 . The method of  claim 1 , wherein the parameters further comprises a device nonce of the second device including a value that the second device uses to authenticate the first device.