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‘Virtual’ encryption scheme combining different encryption operators into compound-encryption mechanism

  • US 6,868,159 B2
  • Filed: 04/05/2001
  • Issued: 03/15/2005
  • Est. Priority Date: 08/01/1996
  • Status: Expired due to Term
First Claim
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1. A method for controllably encrypting data to be transmitted over a communication path between a data source and a data recipient, comprising the steps of:

  • (a) providing at least three sequentially different data encryption operators to encrypt said data into an unintelligible form for transmission over said communication path;

    (b) passing said data to be transported over said communication path through a first of said sequentially different encryption operators that are arranged in a cascaded sequence to thereby produce a first encrypted data stream; and

    (c) successively passing said first encrypted data stream through the cascaded sequence of said sequentially different data encryption operators and successively accessing the at least three different sequentially different encryption operators and successively wrapping previously encrypted data with the next respective encryption operator until the last access code in an encryption control sequence is processed to thereby produce a multiple-encrypted output data stream that is an encryption of said first encrypted data stream.

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