Abstract
In the last five years, many cryptosystems based on the chaos phenomenon have been proposed. Most of them use chaotic maps, i.e., the discrete-time chaos. The recent announcement of a cryptosystem based on continuous-time chaos that is generated by a very simple electronic circuit known as Chua’s circuit passed unrecognized by a large part of the cryptographic community. It is an analog to the Vernam-cipher system, but uses auto-synchronization through remote replication of the chaotic masking signal. After the introductory description of continuous-time chaotic systems and their synchronization a general definition and discussion of cryptosystems based on remote chaos replication is given. A cryptanalytic attack for these systems is developed that can break the cryptosystem using Chua’s circuit for all types of information-bearing signals.
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© 1994 Springer-Verlag Berlin Heidelberg
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Beth, T., Lazic, D.E., Mathias, A. (1994). Cryptanalysis of Cryptosystems based on Remote Chaos Replication. In: Desmedt, Y.G. (eds) Advances in Cryptology — CRYPTO ’94. CRYPTO 1994. Lecture Notes in Computer Science, vol 839. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-48658-5_30
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DOI: https://doi.org/10.1007/3-540-48658-5_30
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