System and method for authenticating data using incompatible digest functions
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United States of America Patent
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Jan 20, 2009
Grant Date -
Dec 12, 2002
app pub date -
Mar 19, 2002
filing date -
Jun 7, 2001
priority date (Note) -
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Abstract
A system for authenticating data of interest includes a digest locator engine capable to locate a first and a second digest result in a data file, including a set of data; a first digest creator capable to create, using a first digest function, a first digest of the set of data, the first digest function being identical to a digest function used to create the first digest result; a second digest creator capable to create, using a second digest function that is incompatible with the first digest function, a second digest of the set of data, the second digest function being identical to a second digest function used to create the second digest result; and a digest comparator engine, communicatively coupled to the digest locator, first digest creator and the second digest creator, capable to compare the first and second created digests with the first and second located digest results respectively.
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