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Encryption and decryption of time series data using a digital filter array

  • US 10,382,407 B1
  • Filed: 03/31/2017
  • Issued: 08/13/2019
  • Est. Priority Date: 03/31/2017
  • Status: Active Grant
First Claim
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1. A method, comprising the following steps:

  • obtaining a plurality of digital time series samples generated by a digital time series generation device;

    applying, by at least one processing device of said digital time series generation device, said plurality of digital time series samples to a digital filter array that combines delayed versions of said digital time series samples using a plurality of coefficients to generate a plurality of encrypted digital time series samples, wherein said plurality of coefficients each comprise a portion of an encryption key associated with said digital time series generation device, wherein said digital time series generation device comprises a device identifier, and wherein said device identifier and said encryption key associated with said digital time series generation device are provided to a server prior to said applying; and

    providing said plurality of encrypted digital time series samples and said device identifier to said server for decryption using an inverse digital filter array.

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