MXPA04011277A - Patrones de autenticacion visibles para documento impreso. - Google Patents
Patrones de autenticacion visibles para documento impreso.Info
- Publication number
- MXPA04011277A MXPA04011277A MXPA04011277A MXPA04011277A MXPA04011277A MX PA04011277 A MXPA04011277 A MX PA04011277A MX PA04011277 A MXPA04011277 A MX PA04011277A MX PA04011277 A MXPA04011277 A MX PA04011277A MX PA04011277 A MXPA04011277 A MX PA04011277A
- Authority
- MX
- Mexico
- Prior art keywords
- analog form
- noisy
- digital representation
- pattern
- analog
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
- G09C5/00—Ciphering apparatus or methods not provided for in the preceding groups, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements
- G07D7/0032—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements using holograms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3226—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using a predetermined code, e.g. password, passphrase or PIN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/60—Digital content management, e.g. content distribution
- H04L2209/608—Watermarking
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Editing Of Facsimile Originals (AREA)
- Image Processing (AREA)
- Printing Methods (AREA)
- Record Information Processing For Printing (AREA)
Abstract
Se describen tecnicas para determinar la autenticidad de formas analogas tales como paquetes o documentos (117). Una de las tecnicas determina si la forma analoga ha sido hecha directamente de una representacion digital (903) o fotocopiando o explorando una forma analoga. La tecnica hace la determinacion comparando (911) una representacion digital original de una porcion de la forma analoga con un registro digital (203) de la porcion de la forma analoga y midiendo diferencias en caracteristicas que son afectadas por las separaciones de fotocopiado o exploracion. La representacion digital original (105) y la forma analoga pueden tener un patron "ruidoso", es decir, un patron aleatorio o pseudoaleatorio. Dichos patrones ruidosos ademas pueden ser utilizados para otros propositos de autenticacion, tal como determinar si la porcion de la forma analoga que tiene el patron ruidoso ha sido alterada y lleva mensajes ocultos. El patron ruidoso puede llevar un logotipo o puede ser una parte o todo un codigo de barras.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38018902P | 2002-05-14 | 2002-05-14 | |
US10/287,206 US6782116B1 (en) | 2002-11-04 | 2002-11-04 | Apparatus and methods for improving detection of watermarks in content that has undergone a lossy transformation |
PCT/US2003/015168 WO2003098540A1 (en) | 2002-05-14 | 2003-05-14 | Visible authentication patterns for printed document |
Publications (1)
Publication Number | Publication Date |
---|---|
MXPA04011277A true MXPA04011277A (es) | 2006-02-22 |
Family
ID=34138240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MXPA04011277A MXPA04011277A (es) | 2002-05-14 | 2003-05-14 | Patrones de autenticacion visibles para documento impreso. |
Country Status (7)
Country | Link |
---|---|
US (3) | US7809152B2 (es) |
EP (1) | EP1514227B1 (es) |
JP (2) | JP4554358B2 (es) |
CN (1) | CN1669046B (es) |
ES (1) | ES2424480T3 (es) |
MX (1) | MXPA04011277A (es) |
WO (1) | WO2003098540A1 (es) |
Families Citing this family (55)
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-
2003
- 2003-05-14 MX MXPA04011277A patent/MXPA04011277A/es active IP Right Grant
- 2003-05-14 US US10/514,271 patent/US7809152B2/en not_active Expired - Lifetime
- 2003-05-14 EP EP03728904.8A patent/EP1514227B1/en not_active Revoked
- 2003-05-14 CN CN038167441A patent/CN1669046B/zh not_active Expired - Lifetime
- 2003-05-14 JP JP2004505966A patent/JP4554358B2/ja not_active Expired - Lifetime
- 2003-05-14 ES ES03728904T patent/ES2424480T3/es not_active Expired - Lifetime
- 2003-05-14 WO PCT/US2003/015168 patent/WO2003098540A1/en active Application Filing
-
2007
- 2007-12-04 JP JP2007313195A patent/JP4981641B2/ja not_active Expired - Lifetime
-
2010
- 2010-08-27 US US12/807,144 patent/US7991198B2/en not_active Expired - Lifetime
-
2011
- 2011-06-07 US US13/134,394 patent/US8189862B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP4981641B2 (ja) | 2012-07-25 |
US7809152B2 (en) | 2010-10-05 |
EP1514227A1 (en) | 2005-03-16 |
CN1669046B (zh) | 2012-03-14 |
US8189862B2 (en) | 2012-05-29 |
US7991198B2 (en) | 2011-08-02 |
US20120063647A1 (en) | 2012-03-15 |
US20060109515A1 (en) | 2006-05-25 |
ES2424480T3 (es) | 2013-10-02 |
EP1514227A4 (en) | 2006-04-05 |
JP2008160827A (ja) | 2008-07-10 |
JP2005525769A (ja) | 2005-08-25 |
US20110122452A1 (en) | 2011-05-26 |
CN1669046A (zh) | 2005-09-14 |
JP4554358B2 (ja) | 2010-09-29 |
WO2003098540A1 (en) | 2003-11-27 |
EP1514227B1 (en) | 2013-06-26 |
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