2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/215021Since the introduction at Crypto'05 by Juels and Weis of the protocol HB+, a lightweight protocol secure against active attacks but only in a detection based-model, many works have tried to enhance its security. We propose here a new approach to achieve resistance against Man-in-The-Middle attacks. Our requirements - in terms of extra communications and hardware - are surprisingly low.submitted to IEEE Transactions on Information TheoryCryptography and Securitytext