2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/89027We propose a proof of the security of EPR-based quantum key distribution against enemies with unlimited computational power. The proof holds for a protocol using interactive error-reconciliation scheme. We assume in this paper that the legitimate parties receive a given number of single photon signals and that their measurement devices are perfect.20 pagesQuantum Physicstext