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Chaos cryptographic communication method and chaos cryptographic communication system

  • US 7,054,446 B2
  • Filed: 05/16/2001
  • Issued: 05/30/2006
  • Est. Priority Date: 05/17/2000
  • Status: Expired due to Fees
First Claim
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1. A cryptographic communication method for use in cryptographic communication of information through communication lines among plural CPUs, the method comprising:

  • installing cryptographic algorithms containing a combination of chaos block encryption and chaos stream encryption in each of said plural CPUs;

    deriving a cipher key, for carrying out cryptographic communication of information, from a data base; and

    carrying out said cryptographic communication of information by applying said combination of chaos block encryption and said chaos stream encryption to the information.

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