SYSTEM FOR ESTABLISHING SECRET SESSION BETWEEN ENTITIES BASED ON MULTIPLE KEY DISTRIBUTION CENTERS AND METHOD THEREOF

摘要

A system and method for establishing secret session between entities based on multiple key distribution centers and method thereof are provided. The system comprises a first network and a second network, wherein the first network includes at least one first communication entity, a first bearer device and a first key distribution center, and the second network includes at least one second communication entity, a second bearer device and a second key distribution center. The first key distribution center is connected with the second key distribution center; the first key distribution center is connected with the first communication entity through the first bearer device; and the second key distribution center is connected with the second communication entity through the second bearer device. The first key distribution center and the second key distribution center have a public-private key pair respectively-a private key x and a public key Px, and a private key y and a public key Py. The first communication entity obtains the public key Px of the first key distribution center before communication, the second communication entity obtains the public key Py of the second key distribution center before communication, and they respectively store the keys locally.