Data encryption using N-lag white multisine random time-series
Antoni Niederliński, Jaroslaw Figwer · Digital library of Zielona Gora (University of Zielona Góra) · 1998
A new data encryption method based on N-lag white multisine random time-series (WMRTS) is presented. Its essence is that consecutive characters of the cleartext are used to generate phase shifts for all or for some of the sine components of an N-lag WMRTS. This time-series is defined in the frequency domain by its Discrete Fourier Transform (DFT). It consists of two spectra: the phaseshift spectrum containing encrypted characters and the amplitude spectrum with the same amplitude for all frequencies.