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Enabling access to data

  • US 10,133,872 B2
  • Filed: 02/18/2016
  • Issued: 11/20/2018
  • Est. Priority Date: 08/19/2013
  • Status: Active Grant
First Claim
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1. A method of enabling access to data, the method comprising:

  • generating a plurality of sets of data, each set of data identifying one or more data portions and at least one data portion being identified in two or more sets of data;

    using a one-way function to generate a plurality of keys each associated with a respective one of the plurality of sets, wherein information associated with a particular set of data from said plurality sets of data is used as an input to the one-way function when generating a key associated with the particular set, wherein generating the key associated with the particular set includes generating first, second and third keys, the third key being related to a combination of at least the first and second keys, and associating the third key with the particular set;

    arranging for the keys including the first and second keys to be available for distribution to one or more requesting parties, wherein the distribution of the keys is controlled to restrict access to the plurality of sets of data;

    receiving a data access request comprising at least one key from a requesting party; and

    enabling access to data in the particular set for the requesting party, based on the received key, wherein access to the particular set is granted in dependence on receipt of either a combination of the first and second keys or the third key.

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