Research and Design of Secure Transmission Protocol Applied to Embedded System

In order to improve the efficiency of data transfer in embedded system, an efficient and secure transmission protocol - Embedded Secure Transmission (EST) Protocol is designed by integrating CPK(Combined Public Key) algorithm principle and encryption communication method. EST protocol can quickly create a point to point communication in embedded environment, which can achieves secure communication and meets real-time operating system's security needs. This paper presents the design and implementation of EST protocol in VxWorks. The experiments showed that EST protocol is feasible and effective.