Authenticated secret session key using elliptic curve digital signature algorithm

Abstract

Elliptic curve Diffie-Hellman (ECDH) scheme is the basic key exchange usedin elliptic curve cryptography. ECDH is a public key cryptosystem based onthe discrete logarithm problem, but is vulnerable to man-in-the-middle attackbecause it does not authenticate the secret session key. The integration of theelliptic curve digital signature allows authenticating the secret session key of theECDH scheme (A-ECDH). However, it is a technique (A-ECDH) that uses a sin-gle random variable and it has been shown in the literature that a single randomvariable does not make the system secure. Therefore, the use of two random vari-ables has been suggested to secure an authentication scheme. In this paper, anew authentication scheme using the elliptic curve digital signature algorithm isproposed. The performance analysis of the proposed authentication protocol isperformed. The comparative results from the perspective of security and compu-tation time showed that the proposed authentication protocol is more efficientin terms of computation time compared to the related works and it provides allthe security features.