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WO2002017616A1 - Filigrane numerique pour signatures manuscrites - Google Patents

Filigrane numerique pour signatures manuscrites Download PDF

Info

Publication number
WO2002017616A1
WO2002017616A1 PCT/EP2000/008288 EP0008288W WO0217616A1 WO 2002017616 A1 WO2002017616 A1 WO 2002017616A1 EP 0008288 W EP0008288 W EP 0008288W WO 0217616 A1 WO0217616 A1 WO 0217616A1
Authority
WO
WIPO (PCT)
Prior art keywords
font
digital
signature
digital watermark
watermark
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2000/008288
Other languages
German (de)
English (en)
Inventor
René BALTUS
Claus Vielhauer
Marc-Bernd Woop
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BS BIOMETRIC SYSTEMS GmbH
Original Assignee
BS BIOMETRIC SYSTEMS GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BS BIOMETRIC SYSTEMS GmbH filed Critical BS BIOMETRIC SYSTEMS GmbH
Priority to PCT/EP2000/008288 priority Critical patent/WO2002017616A1/fr
Priority to AU2000268408A priority patent/AU2000268408A1/en
Publication of WO2002017616A1 publication Critical patent/WO2002017616A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0021—Image watermarking
    • G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32154—Transform domain methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32203—Spatial or amplitude domain methods

Definitions

  • Digital watermarks in pictures and video recordings are just as well known as the four-dimensional signature with normal or special pens.
  • the script sample or signature captured by the EP 0560356 method or a special pen method its digital values and that itself to add a digital watermark to the document above.
  • This digital watermark is generated and certified with a signature, never exactly the same, of the signatory, or with the signature of an authorized person or witness of the sample. Compresses of the digital values of the font sample are also used.
  • the watermark can be generated with a handwritten password or a password that is entered using a commercially available keyboard or a PIN. It is then intended to generate a biometric feature from the individual stroke sequence and the typical stroke pressure when entering the numbers or letters.
  • map of a digitized script sample is used as a watermark, this map later serves as a basis for comparison of the signature or the password written by hand.
  • the digital watermark is generated from the individual electrical data from the resistance values of the detection devices, for example the load cells from the EP 0560356 method or the load cell of a special pen. Furthermore, it is provided that the digital watermark from the Generate stored data of a smart, credit, customer or check card. This could be the card account number or a particularly encrypted number and letter sequence that is generated each time.
  • the keys of a "digital signature" are also suitable Combinations of the individual processes.
  • the digital watermarks usually used for images are so robust that they are complete and recognizable even after several transfers, copies or prints.
  • the digital watermark should be set according to the intended use.
  • the watermark may only appear completely on an original printout, a copy loses so much information that it is immediately recognizable as a copy.
  • the data generated by the further signature is saved in the first font, for example as follows: By protrusions and recesses on the edges of the signature line, and / or by color and / or brightness changes or frequency changes of the signature line or digitally at any point in the document.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)

Abstract

L'invention concerne un texte, en particulier une signature, manuscrit, numérisé et infalsifiable. Selon cette invention, d'autres données numériques sont ajoutées aux données numériques du texte ou de la signature en tant que filigrane numérique, ces données supplémentaires étant extraites d'un deuxième texte manuscrit, en particulier d'une deuxième signature.
PCT/EP2000/008288 2000-08-24 2000-08-24 Filigrane numerique pour signatures manuscrites Ceased WO2002017616A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2000/008288 WO2002017616A1 (fr) 2000-08-24 2000-08-24 Filigrane numerique pour signatures manuscrites
AU2000268408A AU2000268408A1 (en) 2000-08-24 2000-08-24 Digital watermark for personal signatures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2000/008288 WO2002017616A1 (fr) 2000-08-24 2000-08-24 Filigrane numerique pour signatures manuscrites

Publications (1)

Publication Number Publication Date
WO2002017616A1 true WO2002017616A1 (fr) 2002-02-28

Family

ID=8164070

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/008288 Ceased WO2002017616A1 (fr) 2000-08-24 2000-08-24 Filigrane numerique pour signatures manuscrites

Country Status (2)

Country Link
AU (1) AU2000268408A1 (fr)
WO (1) WO2002017616A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0560356A2 (fr) * 1992-03-13 1993-09-15 Baltus, René Dispositif de vérification d'écritures
US5544255A (en) * 1994-08-31 1996-08-06 Peripheral Vision Limited Method and system for the capture, storage, transport and authentication of handwritten signatures
EP0982927A1 (fr) * 1998-08-28 2000-03-01 Hitachi, Ltd. Procédé de génération de données électroniques authentifiées

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0560356A2 (fr) * 1992-03-13 1993-09-15 Baltus, René Dispositif de vérification d'écritures
US5544255A (en) * 1994-08-31 1996-08-06 Peripheral Vision Limited Method and system for the capture, storage, transport and authentication of handwritten signatures
EP0982927A1 (fr) * 1998-08-28 2000-03-01 Hitachi, Ltd. Procédé de génération de données électroniques authentifiées

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BRUYNE DE P: "DYNAMIC SIGNATURE VERIFICATION USING YOUR OWN PEN", PROCEEDINGS OF THE INTERNATIONAL CARNAHAN CONFERENCE ON SECURITY TECHNOLOGY: CRIME COUNTERMEASURES,US,NEW YORK, IEEE, vol. -, 5 October 1988 (1988-10-05), pages 5 - 8, XP000092872 *

Also Published As

Publication number Publication date
AU2000268408A1 (en) 2002-03-04

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