2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/68319The lack of uniqueness arising by oversampling of Fourier coefficients is shown to provide a way of transmitting hidden information. A basic encoding/decoding system, developed on the basis of such a possibility, is discussed. The system is devised with the double purpose of: (a) enabling the transmission of an arbitrary signal and (b) allowing for the transmission of a hidden embedded code.10 pages, 2 figures, 1 tableGeneral Mathematics42A16text