Password self encryption method and system and encryption by keys generated from personal secret information

  • US 8,023,647 B2
  • Filed: 03/12/2009
  • Issued: 09/20/2011
  • Est. Priority Date: 05/29/2008
  • Status: Active Grant
First Claim
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1. A method comprising:

  • submitting a user identification for a user from a user computer to a server computer;

    receiving a set of information at the user computer from the server computer, in response to the submission of the user identification for the user;

    wherein the set of information includes a parameter of a key; and

    further comprisingusing the user computer to convert user confidential information to a number x, wherein the number x is dependent on the user confidential information;

    using the user computer to compute a number e which is a function of x and which is a function of the user confidential information;

    using the user computer to pad the number x to convert x to Xp;

    using the user computer to encrypt xp by using the parameter of the key and the number e to form a cipher C, wherein C is a function of the user confidential information; and

    submitting the cipher C from the user computer to the server computer.

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