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Reader, writer and method for programmable tags

  • US 10,152,618 B2
  • Filed: 12/14/2016
  • Issued: 12/11/2018
  • Est. Priority Date: 09/30/2013
  • Status: Active Grant
First Claim
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1. A tag security system comprising:

  • a tag writer, a tag reader, a programmable tag and a remote data repository, the programmable tag having a unique identifier, the tag writer being configured to generate a security identifier during writing of data to the tag, the security identifier being dependent on one or more of the data written, data already on the tag, metadata associated with the data, the tag and/or the writing of the data, wherein the tag writer is further configured to write the security identifier to the remote data repository, the tag writer being configured to link the security identifier in the remote data repository to the unique identifier, the tag reader being configured to recreate the security identifier during reading of data from the tag, wherein the tag reader is configured to use the unique identifier to verify the security identifier against the security identifier in the remote data repository, the security identifier further being non-recreatable upon changing of predetermined portions of data in the tag.

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