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WO2007010224A1 - Authentification visuelle d'un support d'enregistrement optique - Google Patents

Authentification visuelle d'un support d'enregistrement optique Download PDF

Info

Publication number
WO2007010224A1
WO2007010224A1 PCT/GB2006/002640 GB2006002640W WO2007010224A1 WO 2007010224 A1 WO2007010224 A1 WO 2007010224A1 GB 2006002640 W GB2006002640 W GB 2006002640W WO 2007010224 A1 WO2007010224 A1 WO 2007010224A1
Authority
WO
WIPO (PCT)
Prior art keywords
members
storage medium
data storage
optical data
verification image
Prior art date
Application number
PCT/GB2006/002640
Other languages
English (en)
Inventor
James Leslie Board
Original Assignee
De La Rue International Limited
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 De La Rue International Limited filed Critical De La Rue International Limited
Publication of WO2007010224A1 publication Critical patent/WO2007010224A1/fr

Links

Classifications

    • 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
    • G07D7/06—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 wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • G07D7/128—Viewing devices
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
    • G11B23/40—Identifying or analogous means applied to or incorporated in the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader, photograph

Definitions

  • the invention relates to self-verification apparatus, particularly for use with an optical data storage medium such as a CD or DVD. It is becoming increasingly easier to produce copies of proprietary software provided on optical data storage media such as a CD or DVD as a result of CD and DVD writing devices becoming widely available. As a result of this, software suppliers are providing increasingly sophisticated methods to prevent illegal copying by incorporating anti-copy features into the software. Another approach is to enable counterfeit storage media to be identified by incorporating highly complex security features into the optical data storage media themselves.
  • US-A-2004/0255317 describes various methods for incorporating security features in a radially inner, normally unused portion, of a compact disc.
  • security features include encrypted, printed serial numbers; digital fingerprints or watermarks; holograms; polarized filters; photo-luminescent coatings (detectable by specially tuned lasers); microscopic taggants, i.e., microscopic markers not found in the base material but added to the base material to indicate the object's origin or authenticity; and radio-frequency identification (RFID) devices.
  • RFID radio-frequency identification
  • a self-verification apparatus comprising an optical data storage medium provided with a first member of a visual authentication device; and a second member of the visual authentication device fixed to or generated by an article separate from the optical data storage medium whereby when the first and second members are viewed together, they cooperate to present a verification image to a viewer, the verification image not being visible when the first and second members are viewed separately.
  • the invention provides a quick way for the average user to establish that there is a link between the first and second members, one of which is provided on or in the optical data storage medium, leading to a reasonable degree of certainty that he is handling a genuine product.
  • WO 01/87632 discloses a print feature consisting of an array of dots in which a security pattern or code is produced by displacing some of the dots with respect to the rest. This cannot be seen with the naked eye.
  • the pattern can be made visible by viewing through a planar device carrying transparent and opaque areas of the same periodicity as the printed dots.
  • WO 97/20298 discloses a method and apparatus for producing Scrambled Indicia®. This process encodes a message or image into an area of print using digital techniques. The message cannot be seen by unaided eye. When the print is viewed using a lenticular screen of the correct characteristics the hidden image/message is revealed. In some cases different images can be seen at different angles of view. Such scrambled indicia can be incorporated into print or into holographic originations. Enschede's microSAM® feature uses screen angle modulation to encode a message or image by modifying the print structure in a manner undetectable by the unaided eye. When the feature is viewed through the correct revealer the hidden message or pattern is seen.
  • the revealer in this case is a piece of plastic film ruled with parallel black lines of the correct pitch and thickness.
  • WO 01/39138 discloses methods and apparatus for authenticating security documents such as banknotes, passports etc. According to this method, a screen pattern is printed onto a surface. A revealing device is designed so that when it is placed over the printing, it produces a clearly visible message or image caused by the moire effect.
  • the revealing screen may be a line structure or a microlens array.
  • GB 1407065 describes a security document carrying a pair of metameric inks which match under one illuminant, say North Sky light, but mismatch under another type of illuminant, such as tungsten.
  • EP 930979 discloses a self-verifying document and describes a number of methods by which a transparent region on the document can be used to authenticate a document. Microlenses, diffraction gratings, colour filters and moire effects are all referred to.
  • the security benefits rely on the fact that when the document is copied the structure of the hidden images are not precisely replicated by the copying process. For example this will occur if the resolution of the original image is significantly greater than the resolution of the device used to replicate the image.
  • the article can be supplied separately from the optical data storage medium such that one is equivalent to the known security feature and the other equivalent to the known revealer.
  • the article is related to the optical data storage medium.
  • the article may comprise packaging for the optical data storage medium.
  • the second member may be printed directly or indirectly on the packaging and when the optical data storage medium is removed from the packaging, the two members can be viewed together to check whether the verification image is revealed.
  • the first member is provided in or on a transparent portion of the optical storage data medium so that the second member can be viewed through the transparent portion.
  • the packaging comprises a transparent window containing the second member so that when the optical data storage medium is packaged, the two members cooperate together to generate the verification image.
  • the data stored on the optical data storage medium is to be used on a processor and may for example comprise a software program.
  • the second member may be provided as a label attached to a processor with which the optical data storage medium is to be associated.
  • a personal computer will typically have an operating system preinstalled and will have a certificate of authenticity applied to its outer case for authentication by the user.
  • the computer will also be supplied with a set of DVD's or CD's on which the software associated with the certificate of authenticity is stored, these being supplied as a backup in case the user should need to reinstall the software.
  • the label adhered to the computer has a hidden image printed on it which can be verified by the viewer integrated into the optically data storage media.
  • the second member could be displayed on a display such as a monitor.
  • the display on a monitor could be used simply to verify the optical data storage medium even if it has no connection with any associated processor.
  • the second member is computed by the processor in accordance with a preprogramed algorithm. This algorithm may generate the same second member each time it is activated or may vary the second member, for example by taking account of the time of varying parameter.
  • the processor can obtain the second member from a remote source, for example via the Internet.
  • a purchaser or user of the optical data storage medium could enter an identifier of that storage medium which is communicated to the remote source, the identifier being used as an index to locate the appropriate second member which is then transmitted to the processor for display.
  • the identifier being used as an index to locate the appropriate second member which is then transmitted to the processor for display.
  • the region of the optical data storage medium with the first member is usually transparent but does not need to be 100% transparent. It will typically allow a level of transmission as the user views the coded image to be decoded through this region. For example one might use a semi-transparent metal layer or a transparent coloured layer.
  • the verification image can take a variety of forms but, for ease of recognition, typically comprises one or more of indicia, for example alphanumerics, a graphical device, logos, serial numbers, authentication keys, patterns and the like.
  • Figure 1 illustrates schematically a personal computer and associated optical data storage media
  • Figure 2 is a plan view of a security label affixed to the housing of the personal computer shown in Figure 1 ;
  • Figure 3 illustrates one of the optical data storage media in more detail.
  • Figures 4A-4C illustrate first and second members of another example of a visual authentication device and the combined members respectively; and, Figures 5A-5C and 6A-6C are views similar to Figures 4A-4C respectively but of third and fourth examples of visual authentication devices.
  • FIG 1 shows a security label 1 applied to the housing 2 of a personal computer.
  • the security label 1 shown in detail in Figure 2, is a certificate of authenticity for the operating systems pre-installed on the computer by the computer manufacturer.
  • the security label 1 comprises a security substrate 3 having a security thread 4 and optionally other embedded security features (not shown).
  • the secure substrate 3 is printed with a range of security features including a hidden image feature such as Scrambled Indicia® 5 forming a "second member" of a visual authentication device.
  • Scrambled Indicia® is a technology developed and marketed by Graphic Security Systems Corp and has been widely used on a range of security applications previously. See also WO97/20298.
  • the security label 1 has also been provided with an identifier, for example a barcode 6 and a serial number 7.
  • the identifier can be used by an inspector to authenticate the validity of the label 1.
  • the identifier can also be used by the software owner to validate, or unlock the software application. Alternatively the identifier might be required to access on line help, updates and upgrades to the software.
  • the computer is supplied with one or more back up CD's or DVD's 10, one of which is shown in detail in Figure 3. These can be used in the event the operating system should need to be reinstalled.
  • the revealer 12 has been integrated directly into the CD/DVD during the manufacture of the CD/DVD.
  • the revealer comprises a lens structure which can be formed by embossing.
  • An example is described in WO-A-97/20298. It is therefore relatively straightforward to modify the stamping device used to emboss CD/DVD's to incorporate a revealer device in the inner ring region 14 that is not normally embossed.
  • the CD/DVD 10 can then be used to authenticate the label 1 attached to the CD/DVD 10
  • the revealer during the stamping process of the CD/DVD 10 is may be applied subsequently in a separate process.
  • it may be applied as a transparent label, by a casting process or by a relief printing process.
  • Other methods are described in US-A-2004/0255317.
  • the revealer in the inner ring 14 could be a combination of a scrambled indicia lens structure and a metameric (e.g. red) filter. Such a device would be capable of decoding or revealing both a metameric hidden image and a scrambled indicia hidden image. Alternatively the hidden image could be a complex combination of the metameric and scrambled indicia features.
  • the revealer could be a combination of two lens structures interlocked and thus capable of unlocking two different codes.
  • interlocked we mean the two lens structures are interleaved or superposed upon each other in some way. If the two structures are carefully selected and superposed correctly then it is possible to use a single revealer to reveal two differently encoded images.
  • the revealer could be used to reveal a hidden image that is concealed within a holographic or diffractive element in a similar manner to the previously described hidden images.
  • the hidden image could be concealed within a demetallisation pattern.
  • the demetallisation essentially being equivalent to the printed structures referred to earlier.
  • the revealer could comprise both left and right light polarising segments that can then be used to view a liquid crystal ink feature.
  • liquid crystal ink features can be printed with SICPA Oasis inks.
  • the ink is available in both right and left handed forms so can be used to produce hidden features.
  • the revealer 12 in the inner ring 14 could comprise a microlens array which when placed overthe hidden image magnifies or reconstructs information.
  • Othertypes of lens could be used e.g. simple magnifiers, or fresnel lenses.
  • Composite verification images could be used, generated in accordance with the techniques described in PCT/GB05/01640.
  • the current invention is not limited to the use of Scrambled Indicia® but could make use of many different hidden feature and revealer technologies.
  • the revealer can be printed (instead of embossed) on to the CD. This printing step can be done later in the replication process. Additionally this presents the opportunity for each label to carry a unique pattern that requires a unique decoder. This would further enhance the security of the invention.
  • Figure 4A illustrates a document or item of packaging 30 carrying an area of print 31 within which is hidden an image, for example using the Scrambled Indicia process.
  • Figure 4B illustrates a CD or DVD 32 with a revealer 33 provided in an inner, transparent ring portion.
  • Figure 4C illustrates the result of overlaying the CD/DVD 32 on the document or packaging 30 with the revealer 33 located so that the hidden image 34 is revealed and the message can be read.
  • packaging it will be understood that if the area of print 31 is provided in a transparent window of the packaging 30 then it can be arranged such that the message or hidden image 34 can be viewed while the CD/DVD is in its packaged condition. This provides an indication of authenticity. In that case, it is usually necessary for a window to be provided on the opposite surface of the packaging to that carrying the print 31 so that a light path exists through both leaves of the packaging and the inner ring 33 of the CD/DVD.
  • Figures 5A and 5B illustrate a first member and a second member respectively of a visual authentication device, utilising a metameric effect.
  • the first member 40 ( Figure 5A) is printed using a pair of metameric inks which appear indistinguishable to the naked eye.
  • this metameric print is viewed through a revealer 42, the two inks can be distinguished and a serial number 44 provided using one of the inks ( Figure 5C) can be revealed.
  • the revealer or filter 42 could be provided in the inner ring of the CD as a printed or dyed region.
  • a hidden image 50 (Figure 6A) is created by first printing a background line pattern 52 of a given frequency. Onto this is superposed a message comprising letters made up of a line screen having the same frequency as that of the background but shifted to the left slightly.
  • the revealer 54 is also a line screen of the same frequency and by lining up the revealer 54 correctly with the hidden image 50, the term VALID appears ( Figure 6C).
  • Figure 6C a hidden image 50

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

L'invention concerne un appareil d'autovérification qui comprend un support d'enregistrement optique de données (10) équipé d'un premier élément (12) d'un dispositif d'authentification visuelle. Un second élément (5) du dispositif d'authentification visuelle est fixé à un article (2) ou généré par cet article, qui est séparé du support d'enregistrement optique de données. Lorsque le premier et le second éléments (12, 5) sont visualisés ensemble, ils coopèrent afin de présenter une image de vérification à un visualiseur, l'image de vérification n'étant pas visible lorsque le premier et le second éléments sont visualisés séparément.
PCT/GB2006/002640 2005-07-18 2006-07-17 Authentification visuelle d'un support d'enregistrement optique WO2007010224A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0514701.2A GB0514701D0 (en) 2005-07-18 2005-07-18 Decoding device
GB0514701.2 2005-07-18

Publications (1)

Publication Number Publication Date
WO2007010224A1 true WO2007010224A1 (fr) 2007-01-25

Family

ID=34897386

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/002640 WO2007010224A1 (fr) 2005-07-18 2006-07-17 Authentification visuelle d'un support d'enregistrement optique

Country Status (2)

Country Link
GB (1) GB0514701D0 (fr)
WO (1) WO2007010224A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009019038A1 (fr) * 2007-08-09 2009-02-12 Giesecke & Devrient Gmbh Vérification d'éléments de sécurité à fenêtre
FR2947211A1 (fr) * 2009-06-29 2010-12-31 Oberthur Technologies Document de securite et procede de verification de ce document
WO2013057280A1 (fr) * 2011-10-19 2013-04-25 Bundesdruckerei Gmbh Procédé de vérification d'un document de sécurité par une barrière visuelle à l'aide d'un dispositif d'affichage
WO2013057278A1 (fr) * 2011-10-19 2013-04-25 Bundesdruckerei Gmbh Procédé de vérification d'un document de sécurité à l'aide d'un dispositif d'affichage
WO2013178349A1 (fr) * 2012-06-01 2013-12-05 Giesecke & Devrient Gmbh Vérification de documents de valeur avec une fenêtre ayant des structures diffractives

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996000446A1 (fr) * 1994-06-24 1996-01-04 Minnesota Mining And Manufacturing Company Marquage de disque optique assurant l'identification personnalisee
US5708717A (en) * 1995-11-29 1998-01-13 Alasia; Alfred Digital anti-counterfeiting software method and apparatus
US6062604A (en) * 1996-10-10 2000-05-16 Securency Pty Ltd. Self-verifying security documents
WO2000029878A1 (fr) * 1998-11-13 2000-05-25 Rolic Ag Composant optique
US20020106102A1 (en) * 2000-12-08 2002-08-08 Au Oscar Chi-Lim Methods and apparatus for hiding data in halftone images
US20030039195A1 (en) * 2001-08-07 2003-02-27 Long Michael D. System and method for encoding and decoding an image or document and document encoded thereby
US20030223100A1 (en) * 2002-05-30 2003-12-04 Anderson Michael Jay Disk with holographic security label applied thereto and method of applying label
US20040001604A1 (en) * 2002-06-28 2004-01-01 Isaac Amidror Authentication with built-in encryption by using moire intensity profiles between random layers
EP1434210A2 (fr) * 2002-12-18 2004-06-30 Ricoh Company Support d'enregistrement optique muni d'un motif visible sur le zone ROM
US20050069170A1 (en) * 2003-09-30 2005-03-31 Alasia Alfred V. Method and system for encoding images using encoding parameters from multiple sources

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996000446A1 (fr) * 1994-06-24 1996-01-04 Minnesota Mining And Manufacturing Company Marquage de disque optique assurant l'identification personnalisee
US5708717A (en) * 1995-11-29 1998-01-13 Alasia; Alfred Digital anti-counterfeiting software method and apparatus
US6062604A (en) * 1996-10-10 2000-05-16 Securency Pty Ltd. Self-verifying security documents
WO2000029878A1 (fr) * 1998-11-13 2000-05-25 Rolic Ag Composant optique
US20020106102A1 (en) * 2000-12-08 2002-08-08 Au Oscar Chi-Lim Methods and apparatus for hiding data in halftone images
US20030039195A1 (en) * 2001-08-07 2003-02-27 Long Michael D. System and method for encoding and decoding an image or document and document encoded thereby
US20030223100A1 (en) * 2002-05-30 2003-12-04 Anderson Michael Jay Disk with holographic security label applied thereto and method of applying label
US20040001604A1 (en) * 2002-06-28 2004-01-01 Isaac Amidror Authentication with built-in encryption by using moire intensity profiles between random layers
EP1434210A2 (fr) * 2002-12-18 2004-06-30 Ricoh Company Support d'enregistrement optique muni d'un motif visible sur le zone ROM
US20050069170A1 (en) * 2003-09-30 2005-03-31 Alasia Alfred V. Method and system for encoding images using encoding parameters from multiple sources

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009019038A1 (fr) * 2007-08-09 2009-02-12 Giesecke & Devrient Gmbh Vérification d'éléments de sécurité à fenêtre
FR2947211A1 (fr) * 2009-06-29 2010-12-31 Oberthur Technologies Document de securite et procede de verification de ce document
EP2275279A1 (fr) * 2009-06-29 2011-01-19 Oberthur Technologies Document de sécurité et procédé de vérification de ce document
EP2275279B1 (fr) 2009-06-29 2016-04-13 Oberthur Technologies Document de sécurité et procédé de vérification de ce document
WO2013057280A1 (fr) * 2011-10-19 2013-04-25 Bundesdruckerei Gmbh Procédé de vérification d'un document de sécurité par une barrière visuelle à l'aide d'un dispositif d'affichage
WO2013057278A1 (fr) * 2011-10-19 2013-04-25 Bundesdruckerei Gmbh Procédé de vérification d'un document de sécurité à l'aide d'un dispositif d'affichage
WO2013178349A1 (fr) * 2012-06-01 2013-12-05 Giesecke & Devrient Gmbh Vérification de documents de valeur avec une fenêtre ayant des structures diffractives
CN104364828A (zh) * 2012-06-01 2015-02-18 德国捷德有限公司 对具有窗口显示衍射结构的有价文件的验证

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