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Method of encoding a handwritten signature
Hewlett-Packard Research Laboratory.
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS. (Computer Communications)ORCID iD: 0000-0002-6066-746X
Hewlett-Packard Research Laboratory.
Hewlett-Packard Research Laboratory.
2000 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

Systems and methods for generating and decoding authenticatable graphical bar codes are described. In one aspect, a corroborative signed message is generated from information (12) to be encoded, and a base image (22) is modulated with a graphical encoding of the signed message to produce a marked image (14). In another aspect, a signed message is extracted from a marked image (14) and a base image (22). The extracted signed message is decoded to produce a decoded message. Information (12) encoded in the marked image (14) is extracted from the decoded message and authenticated.

Place, publisher, year, edition, pages
2000. no EP 1340188B1
National Category
Computer Science
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-47857OAI: oai:DiVA.org:kth-47857DiVA: diva2:456466
Patent
EP 1340188 B1 (2007-03-07)
Note

QC 20111115. QC 20130807

Available from: 2011-11-14 Created: 2011-11-14 Last updated: 2013-09-09Bibliographically approved

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Maguire Jr., Gerald Q.

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