EUROCRYPT 1982: Cryptography pp 173-178 | Cite as

Analog Scrambling by the General Fast Fourier Transform

Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 149)


There are many different methods in use to scrample voice signals. Two of them seem to be of special importance: band-splitting and time-division. In existing devices for scrambling analog signals often only on of these methods is implemented. However, newer equipment, which is realized by digital circuitry, allow us to use both methods, band splitting and time division, at the same time.


Voice Signal Nonabelian Group Digital Circuitry Arbitrary Abelian Group Fast Realization 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1983

Authors and Affiliations

  1. 1.Department of Systems ScienceJohannes Kepler University of LinzLinzAustria

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