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Privacy-aware signal monitoring systems and methods

  • US 10,580,225 B2
  • Filed: 03/31/2017
  • Issued: 03/03/2020
  • Est. Priority Date: 03/31/2017
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving time-series data comprising a sequence of values associated with one or more signals generated by a system and representative of a characteristic of the system that has been encrypted according to an encryption scheme by mapping each of the sequence of values to one of a plurality of random values;

    comparing the encrypted time-series data with a specification indicative of one or more expected behaviors of the system, wherein one or more threshold values set forth in the specification are encrypted by mapping the one or more threshold values to other random values of the plurality of random values;

    determining, based upon the comparison and without decrypting any of the encrypted time-series data, the one or more threshold values, and a result of the comparison, whether the characteristic of the system comports with the one or more expected behaviors of the system; and

    outputting one or more notifications based upon the determination.

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