On-line value-bearing indicium printing using DSA
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United States of America Patent
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-
Nov 20, 2007
Grant Date -
Nov 22, 2001
app pub date -
Feb 16, 2001
filing date -
Feb 16, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for generating a Value Bearing Indicium (VBI) for on-line applications. A VBI is generated by hashing user information to create a message digest that is used to create a digital signature. The digital signature is combined with the user information to create a VBI that can be validated by a variety of stand-alone or on-line methods. An on-line postage metering application using the VBI is described.
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