Abstract— A new encryption algorithm based on subblock processing in which one-way mixing functions obtained from a dynamic chaotic system, is presented and analyzed. The algo- rithm is based on an expansion of the Feistel Cipher scheme, where the round function operates on a more grained subblock and both the key generations and the round functions are ob- tained from the quantized trajectory of chaotic systems. The pa- per gives details on the algorithm implementation and proposes a differential cryptanalysis investigation showing the algorithm robustness as a function of the used chaotic map. A final compar- ison with DES-like cryptosystem shows the effectiveness of our proposal in terms of minimum number of steps required to break the system.

Security Issues Mased on Chaotic Systems

FILIPPINI, Andrea;BERGAMO, PIERPAOLO;MAZZINI, Gianluca
2002

Abstract

Abstract— A new encryption algorithm based on subblock processing in which one-way mixing functions obtained from a dynamic chaotic system, is presented and analyzed. The algo- rithm is based on an expansion of the Feistel Cipher scheme, where the round function operates on a more grained subblock and both the key generations and the round functions are ob- tained from the quantized trajectory of chaotic systems. The pa- per gives details on the algorithm implementation and proposes a differential cryptanalysis investigation showing the algorithm robustness as a function of the used chaotic map. A final compar- ison with DES-like cryptosystem shows the effectiveness of our proposal in terms of minimum number of steps required to break the system.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1194634
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