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Systems, methods and software for remote password authentication using multiple servers

  • US 20020067832A1
  • Filed: 05/31/2001
  • Published: 06/06/2002
  • Est. Priority Date: 06/05/2000
  • Status: Active Grant
First Claim
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1. A system that provides for remote password authentication comprising:

  • a client computer;

    a plurality of authentication servers;

    a network interconnecting the client computer and plurality of authentication servers;

    software running on the client computer and plurality of authentication servers that cooperates to enter a password on the client, store a unique random value yi on each of the servers, derive a group element (P) from the password, send a blinded password value (Px) to the servers, retrieve blinded key shares (Pxyi) from the servers, unblind and combine the shares to create a master key (Km), and decrypt encrypted private data on the client computer using the master key (Km).

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