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SYSTEM AND METHOD FOR SECURE REVIEW OF AUDIT LOGS

  • US 20170103228A1
  • Filed: 06/02/2015
  • Published: 04/13/2017
  • Est. Priority Date: 06/02/2014
  • Status: Active Grant
First Claim
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1. A method for searching encrypted log data comprising:

  • generating with a logging machine a first log message include first plaintext content;

    identifying with the logging machine at least one keyword in the first log message;

    encrypting with the logging machine the first log message using a first cryptographic key to produce a first encrypted log message;

    generating with the logging machine a first encrypted searchable representation of the first message including the at least one keyword using a second cryptographic key, the second cryptographic key being different than the first cryptographic key;

    transmitting with the logging machine the first encrypted searchable representation to an auditor;

    performing with the auditor a search to identify at least one search keyword in the first encrypted searchable representation, the auditor using the second cryptographic key to access the first encrypted searchable representation; and

    generating with the auditor a first output indicating presence or absence of the at least one search keyword from the first log message, the first output not including the first plaintext content of the first log message.

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