Embedded extrinsic source for digital certificate validation
First Claim
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1. A method of creating a digital certificate, the method comprising the steps of:
- one or more computer processors creating a digital certificate that includes information defining a validity period and information specifying a first extrinsic source of a current date and time; and
one or more computer processors distributing the digital certificate to a receiving computer, wherein;
the receiving computer is configured to request the current date and time from the first extrinsic source, and the receiving computer is configured to receive the current date and time, and the receiving computer is configured to compare the current date and time that is received to the validity period included within the digital certificate that is created.
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Abstract
A computer uses the information included within a digital certificate to obtain a current date and time value from a trusted extrinsic trusted source and the computer compares the obtained current date and time value to a validity period included in the digital certificate to determine if the digital certificate is expired. The information included within the digital certificate specifying an extrinsic source for the current date and time value can be included in an extension of the digital certificate, and the information can specify a plurality of extrinsic sources.
7 Citations
20 Claims
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1. A method of creating a digital certificate, the method comprising the steps of:
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one or more computer processors creating a digital certificate that includes information defining a validity period and information specifying a first extrinsic source of a current date and time; and one or more computer processors distributing the digital certificate to a receiving computer, wherein; the receiving computer is configured to request the current date and time from the first extrinsic source, and the receiving computer is configured to receive the current date and time, and the receiving computer is configured to compare the current date and time that is received to the validity period included within the digital certificate that is created. - View Dependent Claims (2, 3, 4, 5)
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6. A computer program product of creating a digital certificate, the computer program product comprising:
one or more computer readable storage media wherein a computer readable storage medium is not a transitory signal per se, and program instructions are stored on the one or more computer readable storage media, the program instructions comprising; program instructions to create a digital certificate that includes information defining a validity period and information specifying a first extrinsic source of a current date and time; and program instructions to distribute the digital certificate to a receiving computer, wherein; the receiving computer is configured to request a current date and time from the first extrinsic source, and the receiving computer is configured to receive the current date and time, and the receiving computer is configured to compare the current date and time that is received to the validity period of the digital certificate that is created. - View Dependent Claims (7, 8, 9, 10)
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11. A computer system for validating a first digital certificate, the computer system comprising:
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one or more processors, one or more computer-readable memories, one or more computer-readable tangible storage devices, and program instructions stored on at least one of the one or more tangible storage devices for execution by at least one of the one or more processors via at least one of the one or more memories, the program instructions comprising; program instructions to receive a first digital certificate that includes information defining a validity period and information specifying an extrinsic source of a current date and time; program instructions to request the current date and time from the extrinsic source; and responsive to receiving the current date and time from the extrinsic source, program instructions to compare the current date and time to the validity period of the first digital certificate. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification