2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/122630We introduce a relativistic version of quantum encryption protocol by considering two inertial observers who wish to securely transmit quantum information encoded in a free scalar quantum field state forming Minkowski particles. In a non-relativistic setting a certain amount of shared classical resources is necessary to perfectly encrypt the state. We show that in the case of a uniformly accelerated eavesdropper the communicating parties need to share (asymptotically in the limit of infinite acceleration) just half of the classical resources.accepted in PRAQuantum PhysicsGeneral Relativity and Quantum Cosmologytext