Password Authentication with Insecure Communication

Communications of the ACM 24 | , pp. 770-772

Despite a casual interest in civilian cryptography going back to its origins (see the discussion of [36]), this is my only publication in the field. It presents a cute hack for using a single password to login to a system multiple times without allowing an adversary to gain access to the system by eavesdropping. This hack is the basis of Bellcore’s S/KEY system and of the PayWord system of Rivest and Shamir.