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Encryption methods and apparatus

  • US 20060126827A1
  • Filed: 12/14/2004
  • Published: 06/15/2006
  • Est. Priority Date: 12/14/2004
  • Status: Abandoned Application
First Claim
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1. An encryption system, comprising:

  • multiple sub-key tables, each sub-key table associated with an identifying number;

    multiple cipher engines arranged serially, each cipher engine capable of executing a different encryption operation on an input data stream using a sub-key table and producing an output data stream;

    an overhead data inserter for inserting deciphering data into the output data stream of at least one of the multiple cipher engines;

    a number generator for generating identifying numbers to choose sub-key tables; and

    a checksum engine adapted to produce a checksum value for insertion into the input data stream of the last cipher engine.

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