Digital signature/certificate for hard-copy documents
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United States of America Patent
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N/A
Issued Date -
Nov 23, 2006
app pub date -
May 18, 2005
filing date -
May 18, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A hard-copy authentication document is a physical manifestation of a digital signature or a physical manifestation of a public key affixed to a hard-copy document or physical object, respectively. A method of authentication and non-repudiation of hard-copy documents includes affixing a physical manifestation of a digital signature to a hard-copy document. The physical manifestation of a digital signature is converted to an electronic digital signature, which is compared to a public key to authenticate the hard-copy document.
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