Electronic signature method and apparatus
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United States of America Patent
Stats
-
Nov 18, 1997
Grant Date -
N/A
app pub date -
Nov 1, 1996
filing date -
Dec 27, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Electronic signature apparatus and method provide an electronic signature that can be created only by a signer, but cannot be used for other than the signature object document to be processed, and that can be verified and authenticated as an image. Since the verified result is an image, such as a print of a seal and a signature, the verifier can easily verify the validity of the image. In addition, since a signature image and a signature object document may separately be processed, combined, and decomposited upon decryption, they can effectively be used for a printed signature.
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Cited Art Landscape
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