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Method, system and computer program product for certifying a timestamp of a data processing system

  • US 8,122,274 B2
  • Filed: 02/27/2009
  • Issued: 02/21/2012
  • Est. Priority Date: 02/27/2009
  • Status: Expired due to Fees
First Claim
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1. A computer implemented method comprising:

  • receiving a request to certify a timestamp, the timestamp generated by a trusted data processing system;

    responsive to the request, analyzing historical data related to a system time of the data processing system; and

    certifying the timestamp in response to determining that the historical data indicates a trustworthy system time of the data processing system when the timestamp was generated and determining an absence of a user driven change to the system time of the data processing system.

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