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Using successive levels of authentication in online commerce

  • US 9,171,307 B2
  • Filed: 02/12/2014
  • Issued: 10/27/2015
  • Est. Priority Date: 08/21/2002
  • Status: Expired due to Term
First Claim
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1. A method comprising:

  • performing following acts on a network server;

    receiving a communication from a mobile terminal operated by a client;

    performing a first authentication of the mobile terminal and/or the client;

    in response to the first authentication being successful, delivering a first service to the client;

    after delivering the first service to the client, sending an offer for a second service to the mobile terminal;

    receiving an acceptance message for the second service from the mobile terminal;

    performing a second authentication of the mobile terminal and/or the client;

    in response to receiving the acceptance message for the second service from the mobile terminal and to the second authentication being successful, delivering the second service to the client;

    wherein the first authentication and the second authentication use different authentication techniques;

    wherein the second authentication comprise;

    randomly selecting one of a finite number of telecommunication addresses by which the network server is accessible;

    using the randomly selected telecommunication address in an offer message from the network server to the mobile terminal;

    authenticating the mobile terminal and/or the client if a reply message to the offer message is received from the mobile terminal at the randomly selected telecommunication address.

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