2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/109804This paper analyzes the performance of Kak's three stage quantum cryptographic protocol based on public key cryptography against a man-in-the-middle attack. A method for protecting against such an attack is presented using certificates distributed by a trusted third party.4 pages, 2 figuresCryptography and Securitytext