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Embedded extrinsic source for digital certificate validation

  • US 9,264,236 B2
  • Filed: 01/05/2015
  • Issued: 02/16/2016
  • Est. Priority Date: 03/23/2012
  • Status: Expired due to Fees
First Claim
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1. A method of validating a digital certificate, the method comprising:

  • a computer receiving a first digital certificate that includes within the first digital certificate, information specifying a first extrinsic source of a trusted current date and time value;

    the computer reading the information included within the first digital certificate specifying the first extrinsic source of the trusted current date and time value;

    the computer requesting the trusted current date and time value, based on the information specifying the first extrinsic source that is included within the first digital certificate;

    the computer receiving the trusted current date and time value; and

    the computer comparing the trusted current date and time value to a validity period of the first digital certificate.

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