Method and apparatus for protecting identities of mobile devices on a wireless network

CAFC
  • US 6,944,760 B2
  • Filed: 05/24/2001
  • Issued: 09/13/2005
  • Est. Priority Date: 05/24/2001
  • Status: Active Grant
First Claim
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1. A method of operating a proxy on a network, the method comprising:

  • storing an association of service providers and cryptograpic keys;

    receiving a request from a mobile device, the request dire ted to a remote server on the network;

    using the stored association to identify a cryptographic key associated with the remote server;

    using the identified cryptographic key to encode an Identifier of the mobile device;

    incorporating the encoded identifier into a proxy request;

    sending the proxy request to the remote server on behalf f the mobile device;

    receiving a request from a service initiator on the network to push information to the mobile device;

    determining whether the stored association includes a cryptographic key associated with the service initiator;

    if the stored association includes a cryptographic key associated with the service initiator, using said cryptograhic key to decode a device identifier in the request from the service initiator;

    determining whether the decoded device identifier corresponds to the mobile device; and

    allowing the request from the service initiator to be fulfilled only if the stored association includes a cryptographic key associated with the service initiator and the decoded device identifier corresponds to the mobile device.

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