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United States of America Patent
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May 16, 2000
Grant Date -
N/A
app pub date -
May 30, 1997
filing date -
May 30, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of authenticating digital data such as measurements made for medical, environmental purposes, or forensic purpose, and destined for archival storage or transmission through communications channels in which corruption or modification in part is possible. Authenticated digital data contain data-metric quantities that can be constructed from the digital data by authorized persons having a digital key. To verify retrieved or received digital data, the data-metrics constructed from the retrieved or received data are compared with similar data-metrics calculated for the retrieved or received digital data. The comparison determines the location and measures the amount of modification or corruption in the retrieved or received digital data.
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