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System, apparatus and method for encryption and decryption of data transmitted over a network

  • US 9,444,793 B2
  • Filed: 12/30/2010
  • Issued: 09/13/2016
  • Est. Priority Date: 09/15/2008
  • Status: Active Grant
First Claim
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1. A method for securing data transmitted between a client device and a server comprising:

  • obtaining, by an intermediate module, input text sent from said client device to the server;

    processing said input text at the intermediate module to obtain processed text, wherein said processing comprises;

    when the input text is not to be searchable by the server, transforming the input text non-deterministically or a combination of deterministically and non-deterministically, using at least one key to obtain processed text; and

    when the input text is to be searchable by the server, transforming said input text deterministically, using at least one key to obtain processed text, and including a statistically significant feature in the processed text, the feature including a rarely used character or group of characters; and

    transmitting the processed text to the server.

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