Abstract
After a short introduction to the principles of cryptography emphasis is placed upon the problem of secure speech transmission in telephone systems. The close connections between mathematical methods, laws of physics and technological feasibility aspects—all of which have been forming the face of modern cryptography—is demonstrated in the description of a voice-scrambling system.
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Beth, T. Kryptographie — ein modernes Gebiet mathematisch-naturwissenschaftlicher Forschung. Naturwissenschaften 70, 157–166 (1983). https://doi.org/10.1007/BF01047552
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DOI: https://doi.org/10.1007/BF01047552