On message recognition protocols: recoverability and explicit confirmation

: We look at message recognition protocols (MRPs) and prove that there is a oneto-one correspondence between stateless non-interactive MRPs and digital signature schemes. Next, we examine the Jane Doe protocol and note its inability to recover in case of a certain adversarial disruption. We propose a variant of this protocol which is equipped with a resynchronization technique that allows users to resynchronize whenever they wish. Moreover, we propose another protocol which self-recovers in case of an intrusion. This protocol incorporates the resynchronization technique within itself. Further, we enumerate all possible attacks against this protocol and show that none of the attacks can occur. Finally, we prove the security of the new protocol and its ability to selfrecover once the disruption has stopped. Finally, we propose an MRP which provides explicit confirmation to the sender on whether or not the message was accepted by the receiver.

• Type: Journal
• Year: 2010
• Where: IJACT
• Authors: Ian Goldberg, Atefeh Mashatan, Douglas R. Stinson
• Keywords: Certain Adversarial Disruption, IJACT 2010, Jane Doe Protocol, Resynchronization Technique