Chaos cryptographic communication method and chaos...

Details Chaos cryptographic communication method and chaos... Chaos cryptographic communication method and chaos...

2006-05-30

2006-05-30

Smithers, Matthew (Department: 2137)

Cryptography

Communication system using cryptography

Symmetric key cryptography

Reexamination Certificate

active

07054446

ABSTRACT:
Each of plural CPUs enciphers a plaintext code which is a secrecy object according to chaos block encryption and then enciphers it according to chaos stream encryption. Then, it transmits an obtained cipher code through communication line. On the other hand, each of plural CPUs that received the cipher code synchronously restores the received cipher code according to chaos stream encryption and then restores according to chaos block encryption thereby to obtain an original plaintext code.

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Bruce Schneier, “Applied Cryptography”, John Wiley & Sons, Inc. , 1994, pp. 174-177.
M. Gotz et al., “Discrete-Time Chaotic Encryption Systems-Part I: Statistical Design Approach”, IEEE, 1997.
Japanese Official Action issued Sep. 20, 2005, in counterpart Japanese application, by Examiner Shigenori Aoki, pp. 1-3, Japan.
Japanese Official Action issued Sep. 20, 2005, in counterpart Japanese application, by Examiner Shigenori Aoki, pp. 1-2, Japan.

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