MUTUAL AUTHENTICATION AND SECURE CHANNEL ESTABLICHMENT BETWEEN TWO PARTIES USING CONSECUTIVE ONE-TIME PASSWORDS

摘要

A communication system and method are configured for mutual authentication and secure channel establishment between two parties. In one embodiment a first party generates a first one-time password and sends it to a second party. The second party authenticates the first party by generating a one-time password using the same algorithm, secrets and parameters and matching it with the received first one-time password. If the received first one-time password matches with a generated password, the second party generates a consecutive one-time password, and establishes a secure channel to the first party using the consecutive one-time password. The first party generates a consecutive one-time password and authenticates the second party by successfully communicating with the second party using the secure channel.