2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/97615Though all-or-nothing oblivious transfer and one-out-of-two oblivious transfer are equivalent in classical cryptography, we here show that due to the nature of quantum cryptography, a protocol built upon secure quantum all-or-nothing oblivious transfer cannot satisfy the rigorous definition of quantum one-out-of-two oblivious transfer.4 pages, no figureQuantum Physicstext