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Identifying peers by their interpersonal relationships

  • US 8,726,036 B2
  • Filed: 09/20/2011
  • Issued: 05/13/2014
  • Est. Priority Date: 09/20/2011
  • Status: Active Grant
First Claim
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1. A non-transitory computer-readable storage medium storing a computer readable program of computer instructions, wherein the computer readable program when executed by a processor causes the processor to carry out the following operations:

  • scanning a contact list to identify one or more contact list entries;

    applying a cryptographic function to each identified contact entry to generate a contact entry digest for the contact entry by the following sub-steps;

    identifying one or more fields associated with a contact entry and, for a given field, applying the cryptographic function to a value in the given field or a null value if the given field does not include the value, wherein the value is derived by concatenating string representations of one of;

    first name, last name, telephone number, and e-mail address, into an intermediate data string and summing integer values of characters in the intermediate data string;

    ordering into a data string the contact entry digests;

    applying the cryptographic function to the data string to generate a fingerprint associated with the contact list; and

    using the fingerprint to obtain access to a protected resource.

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