System and method for generating a digital certificate
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United States of America Patent
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Apr 13, 2010
Grant Date -
Jun 23, 2005
app pub date -
Dec 7, 2004
filing date -
Dec 22, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method for generating a digital certificate is provided wherein a new digital record is received and is assigned a sequence value. A first composite digital value is generated by applying a first deterministic function to the digital records stored in a repository. The sequence value and first composite digital value are included in a first certificate. After the digital record is added to the repository, a second composite digital value is generated by applying a second deterministic function to the digital records in the repository. This second composite digital value, and a composite sequence value, are published. An interval digital value which is based upon the first and second composite digital values, and the sequence value, are included in a second certificate which thus verifies the authenticity and sequence value of the digital record.
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