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Encryption and decryption program

  • US 20030235307A1
  • Filed: 06/09/2003
  • Published: 12/25/2003
  • Est. Priority Date: 06/13/2002
  • Status: Abandoned Application
First Claim
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1. A message encryption program for causing a computer to function as:

  • compression means for compressing binary data;

    combining means for combining a plurality of binary data;

    removing means for removing a part of data from a compression message obtained by compressing a message entered into the computer by the compression means so as to generate a lacked compression message and removed data;

    symmetric key encryption means for encrypting the lacked compression message with a symmetric algorithm using a session key to generate an encryption message;

    public key encryption means for encrypting the removed data and the session key with a public key encryption algorithm using a public key by combining them by the combining means so as to generate an encryption block; and

    hybrid encryption means for combining the encryption message and the encryption block by the combining means to generate a hybrid encryption message.

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