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Splitting knowledge of a password

  • US 6,959,394 B1
  • Filed: 09/29/2000
  • Issued: 10/25/2005
  • Est. Priority Date: 09/29/2000
  • Status: Expired due to Fees
First Claim
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1. A method of accessing a password comprising:

  • dividing the password received from a client into a plurality of pieces by taking a plurality of hashes of the password, each hash using a different salt value to obtain a plurality of hash values, from each of which a predetermined number of bits are taken to represent each password piece of the plurality of pieces;

    storing each piece of the plurality of pieces of the password on a different one of a plurality of servers, each of the plurality of servers being independent from others of the plurality of servers;

    separately authenticating a user at each of the plurality of servers, each of the plurality of servers transmitting the piece of the password stored at the respective server to the user when the authentication at that server is successful;

    assembling the password from the password pieces transmitted from the plurality of servers; and

    deleting the password and the plurality of pieces of the password from the client.

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