ID-BASED KEY AGREEMENT METHOD AND APPARATUS

摘要

An ID-based key agreement method and an apparatus thereof are provided to efficiently perform ID-based key agreement between two users(server and client) having different computing power. An ID-based key agreement method includes the steps of: transmitting IDu, X, and Y to a server by a client; receiving the IDu, X, and Y to certify the client, and transmitting z and tv when being certified to the client and generating a session key(sk) by the server; and receiving the z, tv from the server to certify the server and generating a session key identical to the session key of the server by the client when the server is certified.