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

  • US 7,139,917 B2
  • Filed: 05/31/2001
  • Issued: 11/21/2006
  • 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;

    a plurality of authentication servers;

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

    a memory, coupled to the client, the memory maintaining instructions that when executed by the client, cause the client to receive a password, transmit a unique random value yi to each of the servers, derive a group element (P) from the password, send a blinded password value (Px) to the servers, receive blinded key shares (Pxyi) from the servers, unblind and combine the key shares to create a master key (Km), and decrypt encrypted private data using the master key (Km).

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