2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/92886A trusted quantum relay is introduced to enable quantum key distribution links to form the basic legs in a quantum key distribution network. The idea is based on the well-known intercept/resend eavesdropping. The same scheme can be used to make quantum key distribution between several parties. No entanglement is required.13 pages, Latex, one figureQuantum PhysicsCryptography and SecurityNetworking and Internet Architecturetext