Security features for a value document, value document, systems for verifying a value document, and method for verifying a value document

Abstract

The invention relates to a security feature for a value document (200), comprising: an obfuscation element (110) having optically encrypted machine-readable verification data; a verification element (120) having: at least one recording layer (121) which is transparent in the visible spectral range, a light-deflecting structure (122), which is e.g. a micromirror structure and / or a lens structure, the light-deflecting structure (122) being provided on a first face (123) of the recording layer (121); and at least one marking (124) which is introduced into the at least one recording layer (121) and can be perceived, by virtue of the light-deflecting structure (122), when the verification element (120) is viewed from at least one angle of inclination with respect to the field of view of an observer of the verification element (120), the marking being the decrypted verification data.

Description

[0001] Veridos GmbH, Case: 514590-WO

[0002] SECURITY FEATURES FOR A VALUE DOCUMENT, VALUE DOCUMENT

[0003] MENT, SYSTEMS FOR VERIFYING A VALUE DOCUMENT, METHOD FOR VERIFYING A VALUE DOCUMENT

[0004] The invention relates to a safety feature and an alternative safety feature.

[0005] The invention relates to a security document. Furthermore, the invention relates to a security document. Additionally, the invention relates to a system for verifying a security document and an alternative system for verifying a security document. Furthermore, the invention relates to a method for verifying a security document and two alternative methods for verifying a security document.

[0006] According to current technological standards, valuable and security documents such as banknotes, branded goods, driver's licenses, access data, chip cards, or identity documents like passports or national identity cards are known to have so-called security elements or features to protect against unauthorized reproduction or counterfeiting. These security elements / features make it possible to verify the authenticity of the security document, as counterfeiters are sometimes unable to reproduce them, or can only reproduce them with insufficient quality.

[0007] Conventional security documents incorporate electronic semiconductor chips, hereinafter referred to as security chips or simply chips, to prevent reproduction or forgery. These chips provide a high level of copy protection, forgery protection, and reproduction protection. However, equipping security documents with security chips is costly, extremely cumbersome, and complex, as special processes and materials must be used to avoid damaging the delicate and force-sensitive security chips.

[0008] Therefore, there is a need for a security feature or a document with a security feature that does not require a chip but still provides a high level of copy protection, forgery protection, and reproduction protection, so that the costs, complexity, and cumbersome production of these documents can be significantly reduced. Furthermore, there is a need to provide a system and a procedure with which the documents can be reliably verified.

[0009] 5. The invention is defined in the independent claims. Further developments and embodiments of the invention are specified in the dependent claims and the following description.

[0010] One aspect of the present disclosure relates to a security feature for a valuable document. The security feature comprises an obfuscation element with optically encrypted, machine-readable verification data and a verification element. The verification element comprises at least one recording layer transparent in the visible spectral range, a light-reflecting structure, wherein the light-reflecting structure is arranged on a first side of the recording layer; and at least one marking which is incorporated into the at least one recording layer and is recognizable by means of the light-reflecting structure when viewing the verification element at at least one angle of inclination of the valuable document with respect to the field of vision of an observer of the verification element, wherein the marking is the decrypted verification data.

[0011] The term "obfuscation element" describes any element that includes or contains machine-readable verification data, where this verification data is at least optically encrypted or obfuscated by the obfuscation element. Optical encryption can be achieved, for example, by transferring the machine-readable verification data into a surface pattern. For example, an obfuscation element can be a QR code or a barcode. The obfuscation element can be machine-readable, in particular, exclusively machine-readable. The obfuscation element can be a 2D or a 3D element. The obfuscation element can have any shape, such as rectangular, oval, circular, polygonal, square, or rectangular. The obfuscation element can be visibly arranged on a surface of a first page and / or a second page of the security document.In this context, the term “visible” can be interpreted to mean that the obfuscation element is visible in the spectral range visible to the human eye, or that the obfuscation element is only visible in a spectral range invisible to the human eye, e.g. UV or IR. Veridos GmbH, Case: 514590-WO.

[0012] The spectral range is visible. The obfuscation element can be located on the same side of the value document as the verification element. Alternatively, the obfuscation element can be located on a surface opposite the first side of the value document on which the verification element is located.

[0013] 5. The second page. Consequently, the obfuscation element and the verification element can be located on different pages of the document. The obfuscation element can be arranged or positioned under a light-reflecting structure so that the obfuscation element is only visible when viewing the document or the obfuscation element from at least one angle of inclination relative to the viewer's field of vision.

[0014] The verification data represents all data or information that can be used to verify, i.e., check the authenticity of, the security document. The verification data or information may consist of, but are not limited to, alphanumeric strings and / or numbers.

[0015] For example, verification data may include personal data. Personal data represents any data or information directly linked to an individual. This individual could be the owner of the security document, who received the document from an authorized body, such as a government agency. Examples of personal data include, but are not limited to, the date of birth, name (first and last name), parents' names, an image of the owner, and the owner's fingerprint.

[0016] Alternatively or additionally, the verification data may include characteristic or document-specific data or information, such as a serial number or an identification number, but is not limited to this. The verification data may be machine-readable, in particular exclusively machine-readable.

[0017] The term "verification element" represents any element that includes at least one identifier for verifying the verification data. The verification element has at least one recording layer transparent in the visible spectral range, a light-deflectoring structure, and at least one identifier. Veridos GmbH, Case: 514590-WO

[0018] Drawing. The verification element can have any shape, such as rectangular, oval, circular, polygonal, square, or rectangular.

[0019] The verification element can be on the same page of the value document as the

[0020] Five obfuscation elements are arranged. This simplifies the production of the security document.

[0021] Alternatively, the verification element can be located on a surface of the first page of the security document on which the obfuscation element is located, for example, on the opposite or adjacent second page. Consequently, the obfuscation element and the verification element can be located on different pages of the security document.

[0022] The verification element can be fully or at least partially contained in a photograph of the owner of the security document or arranged on the security document itself.

[0023] Alternatively, the verification element may be fully or at least partially enclosed or positioned at the edge of the photograph of the owner of the security document. In this context, the term "photograph" refers to any pictorial representation of the owner's face, such as a passport photo.

[0024] The recording layer represents each layer or position on which one or more identifiers are included or contained.

[0025] The recording layer is a transparent layer or layer in the visible spectral range, especially the human visible spectral range.

[0026] Alternatively or additionally, the recording layer can be transparent in a spectral range not visible to humans, such as UV or IR.

[0027] The recording layer can be fully or at least partially embedded in the security document. Veridos GmbH, Case: 514590-WO

[0028] At least one surface of the recording layer can be completely or at least partially covered with the light-deflectoring structure.

[0029] The feature "where the identifier is the decrypted verification data"

[0030] 5 can mean that the identifier contains a (e.g. alphanumeric) string that matches a string representing the decrypted verification data.

[0031] Markings can be introduced into the recording layer by printing on a printable area or by using a laser or laser engraving, but this is not the only method.

[0032] A light-refracting structure represents any structure that refracts, diffracts, reflects, and / or absorbs light, particularly light in the visible spectrum and / or the invisible spectrum, such as UV or IR. The light-refracting structure can be positioned above the recording layer, but is not limited to this. Examples of light-refracting structures include micromirrors and / or lenses. A light-refracting structure can also provide mechanical protection to the recording layer, for example, against abrasion.

[0033] The light-reflecting structure can be configured such that at least one marking is fully visible at at least one angle of inclination of the document relative to the viewer's field of vision. In other words, the light-reflecting structure can be designed such that the at least one marking is visible only at a predefined angle of inclination of the document, for example 40°, or at several predefined angles of inclination, for example 20°, 40° and 60°.

[0034] Alternatively, the light-deflecting structure can be configured such that at least one marking is at least partially recognizable at at least two tilt angles of the security document relative to the viewer's field of vision. In other words, the light-deflecting structure can be designed such that a first part of a marking, particularly if the marking comprises several marking parts, is recognizable only at a first predefined tilt angle of the security document, for example, 40°, or at several first predefined tilt angles, for example, 20°, 40°, and 60°. The light-deflecting structure can then also be designed such that a second part of the marking is recognizable only at a second predefined tilt angle of the security document, which is determined by the first

[0035] 5. The marking is recognizable at a predefined angle of inclination, for example 50°, or at several second predefined angles of inclination that differ from the first predefined angles of inclination, for example 30°, 50° and 70°. 0 The light-deflectoring structure can be a micromirror structure and / or a lens structure, in particular a structure consisting of a plurality of microlenses and / or a structure consisting of a plurality of micromirrors. The individual micromirrors of the micromirror structure or the individual lenses of the lens structure can have a diameter of 30 to 120 mm. The range of angles of inclination for selecting a predefined angle of inclination, at which at least one marking is recognizable to a person, can be from 10° to 80° and / or from 100° to 170°.

[0036] The light-reflecting structure can be a laser tilting image, for example, MLI or CLI. In a laser tilting image, an integrated striped lens structure makes two different motifs or individual pieces of information (e.g., coat of arms, secondary image, date of birth or expiration) visible or highlighted at different angles of inclination. Therefore, a comparison of individual information in the tilting image with the printed information or with the motifs described in the reference material can be preferentially carried out.

[0037] The tilt angle, also known as the angle of inclination, represents the direction or angle between the verification element or light-reflecting structure and the viewer's field of vision. In other words, the tilt angle indicates the angle from which a viewer looks at the verification element. If the angle is 0°, 90°, or 180°, the verification element is perpendicular to the viewer's field of vision, meaning that at these angles the verification element is not tilted and these angles do not represent a tilt angle. The tilt can be defined with respect to a horizontal and / or vertical axis extending through the security document. Thus, a tilt angle is preferably specified here with reference to a reference plane, in particular a plane in which the security or security document is located.The term "viewer" represents any person or device that is set up to visually detect or view the verification element.

[0038] 5

[0039] The term "identifier" represents all information embedded in the recording layer. The identifier can include, but is not limited to, an alphanumeric string and / or a sequence of numbers or a single digit. For example, the identifier can include, but is not limited to, personal data, characteristic numbers (e.g., ID number), or characteristic words.

[0040] Alternatively or additionally, the identifier may include a cryptographic key or a component of the cryptographic key (key part) with which the optically encrypted machine-readable verification data can be cryptographically decrypted if it is also cryptographically encrypted.

[0041] The marking may be fully or at least partially visible in the human visible spectrum.

[0042] Alternatively, the marking can be entirely or at least partially in the human-invisible spectrum, e.g., UV or IR, and thus exclusively machine-readable and recognizable. 5

[0043] Alternatively, the marking can be exclusively machine-readable. The term "exclusively machine-readable" here means that the marking cannot be deciphered by the human eye upon mere viewing, for example, that the marking is provided in a resolution too low or too small for the naked human eye, or that the marking is only recognizable in the UV or IR spectrum, but is not limited to these. In other words, the term "exclusively machine-readable" means that the marking cannot be recognized, deciphered, and / or read with the naked human eye. 5

[0044] By using exclusively machine-readable markings, verification, particularly biometric verification, is impossible by the human eye alone (Veridos GmbH, Case: 514590-WO). This completely eliminates the possibility of the human brain automatically and erroneously correcting differences in biometric data during verification, thus making the verification of the security document more secure.

[0045] 5

[0046] By using a concealment element and a verification element, a security element can be provided that does not require a chip, but still provides a high level of copy protection, forgery protection and reproduction protection, so that the costs, complexity and cumbersomeness of producing these valuable or security documents can be significantly reduced.

[0047] Furthermore, it is now possible to add additional information (markers) to a security document that are only visible when viewed at a specific angle. Several different marks can be "hidden" at different angles. This makes it impossible to retrieve all the information from a single photograph of the security document or by scanning or copying it. Thus, this concept protects the security document from unauthorized copying.

[0048] Furthermore, the security document qualifies as a second unique factor for 2-factor authentication.

[0049] According to one embodiment of the security feature for a security document,5 the marking and / or the decrypted verification data includes personal data, in particular personal data of the owner of the security document.

[0050] According to one embodiment, the obfuscation element is the identifier of the verification element, i.e., the identifier of the verification element and the obfuscation element contain identical data sets.

[0051] Because the marking and / or the decrypted verification data include personal data, a personalized or personalized security document can be used. Personalizing the security document can increase the level of protection against copying, forgery, and reproduction. Veridos GmbH, Case: 514590-WO

[0052] Protection is increased because counterfeiters / reproducers also need to identify or know the personal data.

[0053] According to one embodiment of the security feature for a security document

[0054] 5. In at least one recording layer, a multitude of different identifiers are incorporated, wherein each individual identifier or a subset of the multitude of different identifiers is only recognizable when viewing the verification element from a different predefined angle of inclination relative to the field of view of an observer of the verification element 0, wherein only one identifier or a smaller selection of identifiers from this multitude of identifiers constitutes the decoded verification data. In other words, the recording layer can contain a multitude of different identifiers, where, for example,Each verification element, or a subset of a multitude of separate markings, is recognizable from a predetermined angle of inclination—different for other markings within the multitude—relative to the field of vision of an observer of the verification element. This increases the level of protection against copying, counterfeiting, and reproduction, as counterfeiters / reproducers must identify, from the multitude of markings, the one or a selection of markings valid for verification.

[0055] According to one embodiment of the security feature for a valuable document, the verification element comprises at least two sub-elements, wherein the first sub-element is arranged in a first area of ​​the valuable document and the second sub-element is arranged in a second area of ​​the valuable document different from the first area, wherein a linking, concatenation, concatenation and / or connection of the marking of the first sub-element with the marking of the second sub-element then constitutes the decrypted verification data.

[0056] The identifiers are preferably combined using an XOR operation in order to decrypt the obfuscation element, i.e., to read, for example, the barcode or QR code. 5

[0057] By providing multiple sections of the security document, each of which can contain at least one identifier that serves jointly to verify the security document (Veridos GmbH, Case: 514590-WO), the level of protection against copying, forgery, and reproduction can be increased, as forgers / reproducers must identify or forge the multitude of sections and / or identifiers of these sections.

[0058] 5

[0059] Another aspect of this disclosure concerns a security feature for a valuable document. The security feature comprises an obfuscation element with optically and cryptographically encrypted machine-readable verification data and a verification element. The verification element comprises at least one recording layer transparent in the visible spectral range, a light-reflecting structure, wherein the light-reflecting structure is arranged on a first side of the recording layer; and at least one marking which is incorporated into the at least one recording layer and is discernible by means of the light-reflecting structure when viewing the verification element from at least one angle of inclination with respect to the field of vision of an observer of the verification element, wherein the marking (124) is the decrypted verification data.

[0060] In a preferred embodiment, the marking includes key data for decrypting the encrypted verification data. In this configuration, the security feature comprises the respective key for decrypting the encrypted verification data. Thus, the marking creates a document-specific key that can be used to decrypt the obfuscation element. The key or key part can be the public part of a cryptographic key pair. The private part of the cryptographic key pair may have been used to encrypt the verification data, e.g., during the production of the document. Alternatively or additionally, the key can be a symmetric key.The additional step of decrypting the encrypted verification data before comparing it with the security feature further enhances the copy protection, anti-forgery protection, and anti-reproduction protection of the security feature. Furthermore, it prevents the verification data from being verified by the naked eye, thereby improving the precision of document verification.5 Veridos GmbH, Case: 514590-WO.

[0061] The key for decrypting the encrypted verification data does not necessarily have to be included in the security feature. In one implementation, the key can be stored with authorized users, e.g., on authorized devices. Thus, only authorized users can perform the verification.

[0062] 5 of the value document. This design reduces the group of users who can gain access to the verification data, thereby increasing data security.

[0063] According to one embodiment of the security feature for a security document, the decrypted verification data includes personal data, in particular personal data of the owner of the security document.

[0064] According to one embodiment of the security feature for a valuable document, a plurality of different markings are incorporated into the at least one recording layer, wherein each individual marking or a subset of the plurality of different markings is recognizable when viewing the verification element from a different predefined angle of inclination relative to the field of vision of an observer of the verification element, wherein only one marking or a smaller selection of markings from this plurality of markings are configured for jointly decrypting the encrypted verification data. In other words, the recording layer can have a plurality of different markings, wherein, for example,Each verification element, or a subset of the multitude of separate markings, is recognizable from a predetermined angle of inclination—different for other markings within the multitude—relative to the field of vision of an observer of the verification element. This increases the level of protection against copying, counterfeiting, and reproduction, as counterfeiters / reproducers must identify, from the multitude of markings, the one or a selection of markings valid for verification.

[0065] In one embodiment, the inclination angle information can be entered as an additional identifier in the verification element, and this information can be checked as part of the verification process to increase security. Veridos GmbH, Case: 514590-WO

[0066] According to one embodiment of the security feature for a valuable document, the verification element comprises at least two sub-elements, wherein the first sub-element is located in a first area of ​​the valuable document and the second sub-element is located in a second area different from the first area.

[0067] 5 of the security document is arranged, whereby only one linking, chaining, concatenation, and / or connection of the identifier of the first sub-element with the identifier of the second sub-element is configured to decrypt the encrypted verification data. 0 By providing multiple areas of the security document, from each of which at least one identifier can be extracted, which together serve to verify the security document, the level of copy protection, forgery protection, and reproduction protection can be increased, since forgers / reproducers must identify or forge the multitude of areas and / or identifiers of these areas.

[0068] In one embodiment, the linking, chaining, concatenation, and / or connection of the identifier of the first sub-element with the identifier of the second sub-element, which is used for cryptographic decryption, can change, for example, dynamically. For instance, for decryption at a first point in time, an identifier from a first area can be used with an identifier from a second area, whereas for decryption at a second point in time (different from the first), an identifier from a third area can be used with an identifier from a fourth area. The linking, chaining, concatenation, and / or connection of the identifiers can thus change very dynamically and further increase security.

[0069] The result of linking, concatenating, sequencing and / or connecting the identifiers is nevertheless the same when using different areas, in order to enable the cryptographic decryption of the verification data.

[0070] According to one embodiment of the security feature for a valuable document, the light-reflecting structure is a micromirror structure and / or a lens structure. Veridos GmbH, Case: 514590-WO

[0071] According to one embodiment of the security feature for a valuable document, the micro mirror structure and / or lens structure is configured such that the at least one marking is fully visible at at least one tilt angle of the valuable document in relation to the field of vision of a viewer.

[0072] 5

[0073] According to one embodiment of the security feature for a valuable document, the micro mirror structure and / or lens structure is configured such that the marking is at least partially visible at at least two tilt angles of the valuable document relative to the viewer's field of vision.

[0074] According to one embodiment of the security feature for a valuable document, the micromirrors of the micromirror structure or the lenses of the lens structure have a diameter of 30 to 120 jun.

[0075] This diameter of the micromirrors of the micromirror structure or the lenses of the lens structure ensures suitable visibility of the markings below the light-deflectoring structure.

[0076] According to one embodiment of the security feature for a valuable document, there is at least one angle of inclination in a range of 10° to 80° and / or 100° to 170°.

[0077] These angles can increase the level of copy protection, forgery protection and reproduction protection, as they reliably prevent the copying of the security document with a photocopier.

[0078] According to one embodiment of the security feature for a security document, the markings are exclusively machine-readable.

[0079] The exclusive machine readability of the marking increases the level of protection against copying, forgery, and reproduction, as counterfeiters / reproducers require specific or specialized machines to recognize the markings. 5 Another aspect of the present disclosure concerns a security document with a security feature according to an aspect of the present disclosure. Veridos GmbH, Case: 514590-WO

[0080] According to one embodiment of the security document, the security document has a first page and a second page opposite the first page, wherein the verification element is arranged on or in a surface of the first page of the security document and the obfuscation element is arranged on or in a

[0081] 5. The surface of the second page of the security document is arranged.

[0082] By placing the verification element and the obfuscation element on different sides of the security document, the level of copy protection, forgery protection and reproduction protection can be increased, since potential forgers / reproducers do not only have to forge one side of the security document, but both sides.

[0083] According to one embodiment of the security document, the document further includes a photograph, for example, a passport photo, of the document's owner. For instance, the photograph can be positioned in the layered structure above or below the recording layer of a colored polycarbonate page of the document. The inclusion of this marking(s) further enhances document protection by placing additional information (e.g., an image) between existing photographic layers (e.g., a grayscale image and a color image). This additional marking (e.g., a photograph, an alphanumeric string containing the document owner's biographical data such as date of birth, first name, last name, maiden name, eye color, hair color, etc., or data about the document such as serial number, identification number, issue date, expiration date, and issuing authority) is only visible from predetermined viewing angles.

[0084] According to one embodiment of the security document, the verification element is located wholly or at least partially in a peripheral area of ​​the photograph. By placing the verification element in a peripheral area of ​​the photograph, the visibility of the photograph, or of the owner's face in the photograph, can be reliably ensured.

[0085] Another aspect of the present disclosure concerns a system for verifying a security document. The system comprises a security document, as described above, and a verification device configured to verify the security document. Veridos GmbH, Case: 514590-WO

[0086] The verification device represents any device configured to verify a valuable document. The verification device may include at least one optical detection element and at least one processing unit, optionally also a key storage device, a tilt angle sensor, and...

[0087] The device comprises at least one optical receiving element, at least one processing unit, a key storage device, a tilt angle determination unit, and the license plate control unit and / or an instruction device. The at least one optical receiving element, the at least one processing unit, the key storage device, the tilt angle determination unit, and the license plate control unit and / or the instruction device may be directly or indirectly, wirelessly or via cable, communicatively coupled to each other or to the processing unit. The verification device may be, but is not limited to, a mobile phone, a smartphone, a stationary unit, or an automatic document verification station.

[0088] A valid verification of the security document can exist if the verification device indicates that the identifier and the optically and / or cryptographically decrypted verification data are identical, if the verification device indicates that the encrypted verification data could be decrypted with the identifier, or if the verification device indicates that decrypting the encrypted verification data with the identifier yields a specific result, e.g., displaying a characteristic parameter such as the name, but is not limited to these.

[0089] An instruction can be issued requesting the user to tilt the document incrementally so that all markings on the document can be captured and evaluated by the verification device. Alternatively or additionally, the instruction can include a directive for the user of the verification device to hold the document at a predetermined angle of inclination in order to capture a marking. The marking at this predetermined angle of inclination may not have been fully or correctly captured during a previous scan of the document, so the user or a tilt-angle adjustment unit of the verification device, guided by the instruction, captures this predetermined angle of inclination again.

[0090] According to one embodiment of the system, the verification device has at least one optical receiving element configured to detect the obfuscation element and the at least one identifier; and at least one processing unit configured to decrypt the optically encrypted machine-readable verification data and to compare the decrypted verification data with the identifier.

[0091] 5

[0092] The optical receiving element represents any element or receiving device configured to receive or capture the obfuscation element and / or the at least one identifier. For example, an optical receiving element can be a camera, such as a still camera or a video camera, but is not limited to this. The optical receiving element can receive or capture the obfuscation element and / or the at least one identifier in the human visible spectrum or in the human invisible spectrum, such as UV or IR. The optical receiving element is communicatively coupled directly or indirectly, wirelessly or by cable, to a processing unit. The optical receiving element can comprise a plurality of receiving elements, with each receiving element of the plurality capturing a different feature, e.g.One sensor captures only the obfuscation elements, and another captures only the verification data. The optical sensor can have error correction across a large number of images so that the verification data and the obfuscation elements can be captured automatically.

[0093] The processing unit represents any unit configured to process, in particular to decrypt, the optically and, if applicable, cryptographically encrypted machine-readable verification data and to compare the decrypted verification data with the identifier. Alternatively, the processing unit represents any unit configured to process, in particular to decrypt, the optically encrypted and cryptographically encrypted machine-readable verification data using the key data or to decrypt the optically encrypted and cryptographically encrypted machine-readable verification data using the key or key fragment as contained in the identifier and / or the key or key fragment as stored in the key storage device. The processing unit may include a processor, but is not limited to this.

[0094] According to one embodiment of the system, the verification device has at least one optical receiving element configured to detect the obfuscation element and the at least one identifier, and, if the identifier includes key data for decrypting the encrypted verification data and the optically encrypted machine-readable verification data is additionally cryptographically encrypted, at least one processing element.

[0095] 5. tungseinheit, which is configured to decrypt the optically encrypted and cryptographically encrypted machine-readable verification data using the key data.

[0096] According to one embodiment of the system, the verification device0 includes a key storage device configured to store at least one cryptographic key or a cryptographic key fragment. The key or key fragment can be stored in the key storage device.

[0097] The key storage device represents any storage device or storage unit that stores key data, in particular a cryptographic key or a cryptographic key fragment. The key storage device can store the key data permanently or for a limited time. The key storage device can include or consist of volatile memory. The key storage device can be located inside or outside the system for verifying a valuable document. If the key storage device is located outside the system for verifying a valuable document, it includes a communication unit configured to provide or transmit the cryptographic key or cryptographic key fragment to the system for verifying a valuable document.

[0098] According to one embodiment of the system, the verification device has at least one optical receiving element configured to detect the obfuscation element and the at least one identifier, and, if the identifier includes key data with a cryptographic key or a cryptographic key fragment for decrypting the encrypted verification data, and the optically encrypted machine-readable verification data is additionally cryptographically encrypted, at least one processing unit configured to decrypt the optically encrypted and cryptographically encrypted machine-readable verification data by means of combination, concatenation, connection, concatenation, and / or Veridos GmbH, Case: 514590-WO

[0099] Linking the cryptographic key or cryptographic key part of the identifier with the cryptographic key or cryptographic key part of the key storage device.

[0100] 5 Preferably, this processing unit of the verification device is configured to combine, chain, connect, concatenate, and / or link the cryptographic key or cryptographic key component of the identifier with the cryptographic key or cryptographic key component of the key storage device. 0

[0101] By decrypting the optically encrypted and cryptographically encrypted machine-readable verification data using the key or key part of the identifier and / or the key or key part of the key storage device, reliable verification of the valuable document can be achieved. This increases the level of protection against copying, forgery, and reproduction.

[0102] According to one embodiment of the system, the verification device includes an inclination angle determination unit configured to determine an inclination angle of the value document in relation to the verification device, and a marking control unit configured to check the marking in relation to the determined inclination angle.

[0103] The inclination angle determination unit represents any unit configured to determine the inclination of the security document or verification element, in particular the optical recording unit, relative to the verification device. The inclination angle can be determined from the inclination specification of a surface on which the security document is placed, but is not limited to this.

[0104] The identifier control unit represents any unit configured to check the identifier, key, or key component with respect to an angle of inclination determined by the tilt angle determination unit. In other words, the identifier control unit can check whether specific identifiers can be detected at specific angles of inclination. For example, the identifier control unit can check whether a particular identifier can be detected at a predetermined angle of inclination, such as Veridos GmbH, Case: 514590-WO, of 40°. This adds another layer of protection, thus increasing the level of copy protection, counterfeit protection, and reproduction protection.

[0105] 5 According to one embodiment of the system, the verification device includes an instruction device configured to generate at least one action instruction and to provide that at least one action instruction to a user, for example, the owner of the valuable document, of the verification device. 0

[0106] The instruction device represents any device configured to create at least one action instruction and to provide that at least one action instruction to a user of the verification device. Action instructions represent any instructions that instruct a user—that is, a person and / or a device—on how to examine the value document. For example, an action instruction might require a user of the value document to slowly tilt, flip, or rotate the value document at a constant speed within the verification device's field of view. An action instruction may contain, but is not limited to, a string of characters and / or numbers.

[0107] The instruction device can include a processing unit that creates at least one action instruction and a communication unit that provides the action instructions to the user of the verification device.

[0108] Alternatively or additionally, the action instructions can also be provided or transmitted to a party who has already shared the document, thus alerting them to a possible forgery. Furthermore, the action instructions can indicate to the user which information is still missing to verify the document.

[0109] Providing an instruction device can significantly improve and facilitate the examination and verification of the security document. Veridos GmbH, Case: 514590-WO

[0110] Another aspect of the present disclosure relates to a method for verifying a security instrument according to an aspect of the present disclosure. The method comprises the following steps: capturing optically encrypted, machine-readable verifications provided in a concealment element.

[0111] 5. Recording of verification data; capturing at least one identifier on the security document; decrypting the optically encrypted, machine-readable verification data; verifying the security document by comparing the decrypted verification data with the at least one identifier. 0. Another aspect of the present disclosure relates to a method for verifying a security document according to an aspect of the present disclosure.The procedure comprises the following steps: capturing optically and cryptographically encrypted machine-readable verification data provided in an obfuscation element; capturing at least one identifier on the security document; determining a key or key part for decrypting the cryptographically encrypted machine-readable verification data from the identifier; decrypting the optically and cryptographically encrypted machine-readable verification data using the key or key part; and verifying the security document using the decrypted machine-readable verification data, e.g., by comparing the decrypted machine-readable verification data with the at least one identifier.

[0112] The identifier may include key data for decrypting the cryptographically encrypted machine-readable verification data.

[0113] Another aspect of the present disclosure concerns a procedure for verifying a security in accordance with an aspect of the present disclosure.The procedure comprises the following steps: capturing optically and cryptographically encrypted machine-readable verification data provided in an obfuscation element; capturing at least one identifier on the security document, wherein the identifier includes key data for decrypting the cryptographically encrypted machine-readable verification data; querying a key or a key part thereof for decrypting the cryptographically encrypted machine-readable verification data from a verification device; decrypting the optically and cryptographically encrypted machine-readable verification data (Veridos GmbH, Case: 514590-WO) using the identifier and the queried key or key part; verifying the security document using the decrypted machine-readable verification data.

[0114] 5 According to one embodiment of the method, the method further comprises the following steps: determining an angle of inclination of the security document with respect to the verification device; and checking the detected marking with respect to the determined angle of inclination. 0 According to one embodiment of the method, the method further comprises the following steps: creating at least one instruction for action; and providing the at least one instruction for action to a user of the verification device.

[0115] The invention, or further embodiments and advantages thereof, are explained in more detail below with reference to drawings, which only depict embodiments of the invention. Identical components are identified by the same reference numerals in the drawings. Elements drawn with dashed lines are considered optional.

[0116] The drawings are not to be considered as being to scale, and individual elements of the drawings may be depicted in an exaggeratedly large or excessively simplified form. Fig. 1 shows an embodiment of a security document according to the invention.

[0117] Figures 2a and 2b show further embodiments of a security document according to the invention.

[0118] Fig. 3 shows a verification element of an embodiment of a security document according to the invention.

[0119] Fig. 4 shows a system according to the invention for verifying a security document. Fig. 5 shows an embodiment of a method according to the invention for verifying a security document. Veridos GmbH, Case: 514590-WO

[0120] Fig. 6 shows another embodiment according to the invention of a method for verifying a security document.

[0121] Fig. 7 shows another embodiment of a method according to the invention.

[0122] 5 to verify a security document.

[0123] Figure 1 shows an embodiment of a security document according to the invention. The security document 200 has a first page 201. On the first page 201, in particular on the surface or top side, a concealment element 110 and a verification element 120 are arranged visibly and unobstructed to the naked eye. The concealment element 110 and the verification element 120 are each part of a security feature. The concealment element 110 and the verification element 120 are each formed in one piece. The concealment element 110 and the verification element 120 are arranged in different, mutually separated areas of the page 201 or the surface of the security document 200.

[0124] Optionally, the security document 200 includes a photograph 203. The photograph 203 is visibly and unobstructedly positioned on the surface of the security document. The verification element 120 can be located on or within an edge area of ​​the photograph 203.

[0125] Figures 2a and 2b show further embodiments of a security document according to the invention. Figure 2a shows a second side 202, in particular a bottom side, 5 of the security document 200. The concealment element 110 is visibly and unconcealed arranged on the bottom side 202. Figure 2b shows a first side 201, in particular a top side, of the security document 200. The verification element 120 is visibly and unconcealed arranged on the top side 201.

[0126] Optionally, a photo 203 is visible and unobstructed on the first page 201. The verification element 120 is located on or in an edge area of ​​the photo 203.

[0127] Figure 3 shows a verification element of an embodiment 5 of a security document 200 according to the invention. The security document 200 can correspond to the security document 200 of the figures described above. The verification element 120 comprises a light-deflectoring structure 122 and a recording layer 121. Veridos GmbH, Case: 514590-WO

[0128] The recording layer 121 is made of a material transparent in the human visible spectrum. A multitude of markings 124 are incorporated within the recording layer 121. On a first side 123, in particular the surface or top side, of the recording layer 121, the light-reflecting

[0129] Structure 122 is arranged in 5. The light-reflecting structure 122 completely covers the first page 123. The light-reflecting structure 122 is a microlens structure consisting of a multitude of lenses with a diameter of 30 to 120 µm. The light-reflecting structure 122 is configured such that at least one marking 124 is fully visible at an angle of inclination of 45° of the document with respect to the viewer's field of vision (solid arrow line). The marking is not visible from any other angle of inclination or angles such as 90° (dashed arrow line).

[0130] For example, the photograph 203 of the security document 200 can be positioned above or below the recording layer 121 in the layer structure. If, for example, security documents with a colored polycarbonate side are used, a grayscale and a color version are generated from the digital source code of the photograph 203. While the grayscale photograph is laser-etched into the security document 200 along with the biographical data, the color version of the photograph 203 is applied to the light-reflecting structure 122 (also known as the clip ID area), for example, by printing. This side is then laminated. Together, both images form a complete color image. The inclusion of the markings 124 further increases image protection by placing an additional image between the two existing photographic layers (grayscale image and color image). These additional markings (e.g.,To recognize photos, alphanumeric character strings from the biographical data of the owner of the security document such as date of birth, first name, last name, maiden name, eye color, hair color, etc., or data about the security document such as serial number, identification number, date of issue, expiry date, issuing authority.

[0131] Figure 4 shows a system according to the invention for verifying a security document. The system 300 comprises a security document 200, as already shown in Figures 1, 2a and 2b, and a verification device 400. The verification device 400 is configured to verify the security document 200. Veridos GmbH, Case: 514590-WO

[0132] Optionally, the verification device 400 has at least one optical receiving element 410 and at least one processing unit 420. The optical receiving element 410 is configured to detect the obfuscation element 110 and the at least one marking 124.

[0133] 5 410 can be a camera. The at least one processing unit 420 is configured to decrypt the optically encrypted machine-readable verification data and to compare the decrypted verification data with the identifier. Alternatively, if the identifier includes key data for decrypting the encrypted verification data and the optically encrypted machine-readable verification data is additionally cryptographically encrypted, the at least one processing unit 420 is configured to decrypt the optically encrypted and cryptographically encrypted machine-readable verification data using the key data.

[0134] Optionally, the verification device 400 includes a key storage device 430. The key storage device 430 is configured to store at least one key or key part. The key or key part stored in the key storage device can be different from the key or key part used for identification.

[0135] Optionally, the verification device 400 includes at least one optical receiving element 410 and at least one processing unit 420. The optical receiving element 410 is configured to detect the obfuscation element 110 and the at least one identifier 124. If the identifier 5 includes key data with a key or key part for decrypting the encrypted verification data, and the optically encrypted machine-readable verification data is additionally cryptographically encrypted, the processing unit 420 can be configured to decrypt the optically encrypted and cryptographically encrypted machine-readable verification data using the key or key part of the identifier and the key or key part of the key storage device 430.

[0136] Optionally, the verification device 400 includes an inclination angle determination unit 440 and a license plate control unit 450. The inclination angle determination unit 440 is configured to determine an inclination angle of the security document 200 relative to the verification device 400. Veridos GmbH, Case: 514590-WO

[0137] The character control unit 450 is configured to control the marking in relation to the specified tilt angle.

[0138] Optionally, the verification device 400 includes an instruction device 460.

[0139] 5. The instruction device is configured to create at least one action instruction and to provide this at least one action instruction to a user of the verification device 400. The action instruction can instruct the user to tilt the valuable document incrementally so that the markings can be captured and evaluated. Alternatively or additionally, the action instruction can include an instruction to the user of the verification device 400 to hold the valuable document at a predetermined angle of inclination. In some cases, the marking at this instructed predetermined angle of inclination may not have been fully or correctly captured during a previous scan of the valuable document, so the user must capture this predetermined angle of inclination again.

[0140] The optical receiving element 410, the processing unit 420, the key storage device 430, the tilt angle determination unit 440, the license plate control unit 450 and / or the instruction device 460 are all communicatively coupled to the processing unit 420 directly or indirectly, wirelessly or by cable.

[0141] With the methods described in the preceding figures, it is possible to add further information to the security document in the form of markings 124, which are only visible when viewed at a specific angle. Several different markings 124 can be "hidden" at different angles. This makes it impossible to retrieve all the information from a single photograph or by scanning / copying the security document. The described concept protects the photographs 203 of a security document from copying and qualifies the security document as a second unique factor for two-factor authentication.

[0142] The solution proposed here makes it possible to conceal digital information. By tilting the security document 200 in front of the optical recording element 5 410, this concealed information (markings 124) is recorded only gradually. The information extracted from the markings 124 in this way can be used to verify the authenticity of the security document 200 in various ways. Forgers would have to read the security document at all personalized tilt angles and reconstruct the information so that it could be personalized onto another (forged) security document 200. To do this, they would have to painstakingly modify the special light-diffusing layer 122.

[0143] 5. This type of personalization of a value document 200 may require a costly laser engraver with a tilting mechanism, which counterfeiters usually avoid.

[0144] In one embodiment, an inclination angle specification is included as an additional identifier (designation 124) in the verification element. This specification can be checked by the verification device during the verification process to increase safety.

[0145] In one embodiment, the obfuscation element 110 is simultaneously the marking 124 of the verification element.

[0146] For example, it may be necessary to link individual identifiers 124 in order to decode the obfuscation element, i.e., to read the barcode or QR code of the security document 200. This linking is preferably done using an XOR operation.

[0147] Figure 5 shows an embodiment of a method for verifying a security document according to the invention. In a first step S1, optically encrypted, machine-readable verification data provided in a concealment element 110 is acquired. This can be provided by means of an optical receiving element 410 of the verification device 400. In a second step S2, at least one marking 124 on the security document 200 is acquired. This can be provided by means of the same or a further or different receiving element 410 of the verification device 400. In a third step S31, the optically encrypted, machine-readable verification data is decrypted.Such decryption can be achieved by processing the optically encrypted, machine-readable verification data using optical decryption software, such as a barcode or QR code reader, in which at least one processing unit 420 is provided. In a fourth step S41, the security document 200 is verified by comparing the decrypted verification data with the at least one identifier 124. In other words, if the decrypted verification data and the at least one identifier 124 are identical, then the security document 200 is considered successfully verified. If the decrypted verification data and the identifier 124 do not match, then the security document 200 is considered unsuccessfully verified.

[0148] 5

[0149] Optionally, in a fifth step S6, an inclination angle of the security document 200 relative to the verification device 400 can be determined. This angle can be provided by the verification device's inclination angle determination unit 440. In a sixth step S7, the captured identifier is checked by an identifier control unit 150 with respect to the determined inclination angle. In other words, the identifier control unit 150 checks whether at least one identifier was captured at a correct inclination angle of the verification element or the security document.

[0150] Optionally, in a seventh step S8, at least one action instruction is created. The action instruction can be created using an instruction device. In an eighth step S9, the at least one action instruction is provided to a user of the verification device 400. The action instruction can be provided to the user of the verification device using a communication unit.

[0151] Fig. 6 shows a further embodiment of a method for verifying a security document according to the invention. In a first step S1, optically and cryptographically encrypted machine-readable verification data provided in a5 obfuscation element 110 are acquired. This can be provided by means of an optical receiving element 410 of the verification device 400. In a second step S2, at least one marking 124 on the security document (200) is acquired, wherein the marking 124 comprises key data for decrypting the cryptographically encrypted machine-readable verification data. This can be provided by means of the same or a further or different receiving element 410 of the verification device 400. In a third step S32, the optically encrypted and cryptographically encrypted machine-readable verification data are decrypted by means of the5 marking.The decryption of the third step, S32, can be performed separately or sequentially. In other words, the optical decryption of the machine-readable verification data can be performed separately and prior to the cryptographic decryption of the machine-readable verification data (Veridos GmbH, Case: 514590-WO). Optical decryption can be achieved by processing the optically encrypted machine-readable verification data using optical decryption software, such as a QR code.

[0152] 5 readers, in which at least one processing unit 420 is provided. Cryptographic decryption can be performed by processing the cryptographically encrypted machine-readable verification data using cryptographic decryption software or decryption methods in the at least one processing unit 420. In a fourth step S42, the value document 200 will be verified by or using the decrypted machine-readable verification data. In this context, the verification of the value document 200 can be considered successful if the optically and cryptographically encrypted machine-readable verification data can be decrypted. If the encrypted verification data cannot be decrypted by the identifier 124, then the value document 200 is considered not to have been successfully verified.

[0153] Optionally, in a fifth step S6, an inclination angle of the security document 200 relative to the verification device 400 can be determined. This can be provided by the inclination angle determination unit 440 of the verification device. In a sixth step S7, the captured mark is checked by a mark control unit 150 with respect to the determined inclination angle. In other words, the mark control unit 150 checks whether the captured mark was recorded at a correct inclination angle of the verification element or the security document.

[0154] Optionally, in a seventh step S8, at least one action instruction is created. The action instruction can be created using an instruction device. In an eighth step S9, the at least one action instruction is provided to a user of the verification device 400. The action instruction can be provided to the user of the verification device using a communication unit. Figure 7 shows a further embodiment of a method according to the invention for verifying a security document. In a first step S1, optically and cryptographically encrypted machine-readable verification data provided in a concealment element 110 are acquired. This can be provided by means of an optical receiving element 410 of the verification device 400.In a second step S2, at least one identifier 124 is recorded on the security document (200), whereby the identifier 124 contains key data for the.

[0155] Step 5 involves decrypting the cryptographically encrypted machine-readable verification data. This can be provided by the same or a different receiving element 410 of the verification device 400. In a third step S5, a key or key part is retrieved from a verification device 400. The key part or key can be accessed from a key storage device 430. In a fourth step S33, the optically encrypted and cryptographically encrypted machine-readable verification data is decrypted using the identifier and the retrieved key or key part. The decryption of the third step S33 can be performed separately or sequentially.In other words, the optical decryption of the machine-readable verification data can be provided separately and prior to the cryptographic decryption of the machine-readable verification data. Optical decryption can be performed by processing the optically encrypted machine-readable verification data using optical decryption software, such as a QR code reader, in which at least one processing unit 420 is provided. Cryptographic decryption can be performed by processing the cryptographically encrypted machine-readable verification data using cryptographic decryption software or decryption methods in which at least one processing unit 420 is provided.5 The key of the identifier and the retrieved key can be used to decrypt the encrypted verification data.This may be necessary. In this case, the identifier key and the retrieved key can be separate, distinct keys or interacting key pairs that together form a single key. In a fourth step (S43), the value document 200 is verified by or using the decrypted machine-readable verification data. In this context, the verification of the value document 200 can be considered successful if the optically and cryptographically encrypted machine-readable verification data can be decrypted. If the encrypted verification data (e.g., by identifier 124) cannot be decrypted, then the value document 200 is considered unsuccessfully verified. If the cryptographically decrypted verification data does not match the identifier (Veridos GmbH, Case: 514590-WO), the value document 200 is considered unsuccessfully verified.

[0156] Optionally, in a fifth step S6, an inclination angle of the security document 200 relative to the verification device 400 can be determined. This angle can be provided by the verification device's inclination angle determination unit 440. In a sixth step S7, the captured mark is checked by a mark control unit 150 with respect to the determined inclination angle. In other words, the mark control unit 150 checks whether at least one mark was captured at the correct inclination angle of the verification element or the security document.

[0157] Optionally, in a seventh step S8, at least one action instruction is created. The action instruction can be created using an instruction device. In an eighth step S9, the at least one action instruction is provided to a user of the verification device 400. The action instruction can be provided to the user of the verification device using a communication unit.

[0158] Veridos GmbH, Case: 514590-WO

[0159] Reference symbol list:

[0160] 110 Obfuscation element 120 Verification element 120a First sub-element 120b Second sub-element 121 Recording layer 122 Light-deflecting structure 123 First side of the light-deflecting structure 124 Identification 200 Valuable document 200a First area of ​​the valuable document 200b Second area of ​​the valuable document 201 First page of the valuable document 202 Second page of the valuable document 203 Photograph of the owner of the valuable document 300 System 400 Verification device 410 Optical recording element 420 Processing unit 430 Key storage device 440 Tilt angle determination unit 450 Identification control unit 460 Instruction device S1 Capture of verification data S2 Capture of identification S31 Decryption of verification data S32 Decryption of verification data S33 Decryption of verification data S41 Verify the value document S42 Verify the value document S5 Query the key or key part S6 Determine the inclination angle S7Checking the labeling S8 Creating action instructions S9 Providing action instructions

Claims

Veridos GmbH, Case: 514590-WO Claims 1. A security feature for a valuable document (200) comprising: a concealment element (110) with optically encrypted machine-readable verification data; a verification element (120) comprising: at least one recording layer (121) transparent in the visible spectral range, a light-deflectoring structure (122), wherein the light-deflectoring structure (122) is arranged on a first side (123) of the recording layer (121); at least one marking (124) which is incorporated into the at least one recording layer (121) and is recognizable by means of the light-deflectoring structure (122) when viewing the verification element (120) at at least one angle of inclination of the valuable document with respect to the field of vision of an observer of the verification element (120), wherein the marking (124) is the decrypted verification data.

2. The security feature according to claim 1, wherein the marking (124) and / or the decrypted verification data comprise personal data, in particular personal data of the owner of the security document (200).

3. The security feature according to any of the preceding claims, wherein a plurality of different markings are incorporated in the at least one recording layer (121), wherein each marking or a subset of the plurality of different markings is recognizable when viewing the verification element (120) at a separate tilt angle of the security document in relation to the field of vision of an observer of the verification element (120), wherein only one marking or a selection of markings are the decrypted verification data.

4. The security feature according to any of the preceding claims, wherein the verification element (120) comprises at least two sub-elements (120a, 120b), wherein the first sub-element (120a) is arranged in a first area (200a) of the security document (200) and the second sub-element (120b) is arranged in a Veridos GmbH, Case: 514590-WO is arranged from the first area (200a) to the second area (200b) of the security document, wherein the identifier of the first sub-element (120a) and the identifier of the second sub-element (120b) are the decrypted verification data.

5. A security feature for a valuable document (200) comprising: a concealment element (110) with optically and cryptographically encrypted machine-readable verification data; a verification element (120) comprising: at least one recording layer (121) transparent in the visible spectral range, a light-deflectoring structure (122), wherein the light-deflectoring structure (122) is arranged on a first side (123) of the recording layer (121); at least one marking (124) which is incorporated into the at least one recording layer (121) and is recognizable by means of the light-deflectoring structure (122) when viewing the verification element (120) at at least one angle of inclination of the valuable document with respect to the field of vision of an observer of the verification element (120), wherein the marking (124) is the decrypted verification data.

6. The security feature according to claim 5, wherein the marking comprises key data for decrypting the encrypted verification data.

7. The security feature according to claim 5 or 6, wherein the decrypted verification data includes personal data, in particular personal data of the owner of the security document (200).

8. The security feature according to any one of claims 5 to 7, wherein a plurality of different markings are incorporated in the at least one recording layer (121), wherein each marking or a subset of the plurality of different markings is recognizable when viewing the verification element (120) at a separate tilt angle of the security document in relation to the field of vision of an observer of the verification element (120), wherein only one marking or a selection of markings Veridos GmbH, Case: 514590-WO nungen are configured for joint decryption of the encrypted verification data.

9. The security feature according to any one of claims 5 to 8, wherein the verification element (120) comprises at least two sub-elements (120a, 120b), wherein the first sub-element (120a) is arranged in a first area (200a) of the value document (200) and the second sub-element (120b) is arranged in a second area (200b) of the value document different from the first area (200a), wherein the marking of the first sub-element (120a) and the marking of the second sub-element (120b) are configured to decrypt the encrypted verification data together.

10. The safety feature according to any of the preceding claims, wherein the light-deflectoring structure (122) is a micro mirror structure and / or a lens structure.

11. The security feature according to claim 10, wherein the micro mirror structure and / or lens structure is configured such that the at least one marking is fully recognizable at at least one tilt angle of the security document in relation to the field of vision of a viewer.

12. The security feature according to claim 10, wherein the micro mirror structure and / or lens structure is configured such that the marking is at least partially recognizable at at least two tilt angles of the security document in relation to the field of vision of an observer.

13. The safety feature according to any one of claims 10 to 12, wherein the micromirrors of the micromirror structure or the lenses of the lens structure have a diameter of 30 to 120 mm.

14. The safety feature according to any of the preceding claims, wherein the at least one inclination angle is in a range of 10° to 80° and / or 100° to 170°.

15. The security feature according to any of the preceding claims, wherein the marking is exclusively machine-readable. Veridos GmbH, Case: 514590-WO 16. A security document (200) with a security feature according to any of the preceding claims.

17. The security document (200) according to claim 16, wherein the security document (200) has a first page (201) and a second page (202) opposite the first page (201), wherein the verification element (120) is on the first page (201) of the security document (200) is arranged and the concealment element (110) is arranged on the second page (202) of the security document (200).

18. The security document (200) according to any one of claims 16 or 17, wherein the security document (200) further comprises a photograph (203) of the owner of the security document (200).

19. The security document (200) according to claim 18, wherein the verification element (120) is arranged completely or at least partially in a marginal area (203a) of the photograph (203).

20. A system (300) for verifying a value document (200), comprising: a value document (200) according to any one of claims 16 to 19; a verification device (400) configured to verify the value document (200).

21. The system (300) according to claim 20, wherein the verification device (400) comprises: at least one optical receiving element (410) configured to detect the obfuscation element (110) and the at least one marking (124); at least one processing unit (420) configured to decrypt the optically encrypted machine-readable verification data and to compare the decrypted verification data with the marking.

22. The system (300) according to claim 20, wherein the verification device (400) comprises: at least one optical receiving element (410) configured to detect the obfuscation element (110) and the at least one marking (124); if the marking comprises key data for decrypting the encrypted verification data and the optically encrypted machine-readable verification data are additionally cryptographically encrypted, at least- Veridos GmbH, Case: 514590-WO dest a processing unit (420) configured to decrypt the optically encrypted and cryptographically encrypted machine-readable verification data using the key data.

23. System (300) according to claim 21 or 22, wherein the verification device (400) comprises: a key storage device (430) in which at least one key for decrypting the optically and cryptographically encrypted machine-readable verification data or a key part of the key is stored, wherein the at least one processing unit (420) is configured to decrypt the optically and cryptographically encrypted machine-readable verification data by means of the key or based on the key part.

24. The system (300) according to any one of claims 20 to 23, wherein the marking (124) comprises key data with a key for decrypting the optically and cryptographically encrypted machine-readable verification data or a key part of the key, and the processing unit (420) is configured to decrypt the optically and cryptographically encrypted machine-readable verification data by means of the key or key part of the marking, in particular in combination with the key or key part stored in the key storage device (430).

25. The system (300) according to any one of claims 20 to 24, wherein the verification device (400) comprises: an inclination angle determination unit (440) configured to determine an inclination angle of the security document (200) with respect to the verification device (400); and a marking control unit (450) configured to check the marking with respect to the determined inclination angle.

26. The system (300) according to any one of claims 20 to 25, wherein the verification device (400) comprises: an instruction device (460) configured to create at least one action instruction and to provide the at least one action instruction to a user of the verification device (400). Veridos GmbH, Case: 514590-WO 27. A method for verifying a security document (200) according to claims 16 to 19, comprising the method: Capture (Sl) optically encrypted machine-readable verification data provided in an obfuscation element (110); Detection (S2) of at least one identifier (124) on the security document (200); Decryption (S31) of the optically encrypted machine-readable verification data; Verification (S41) of the value document (200) by comparing the decrypted verification data with at least one identifier (124).

28. A method for verifying a security document (200) according to claims 16 to 19, comprising: Capture (Sl) optically and cryptographically encrypted machine-readable verification data provided in an obfuscation element (110); Detection (S2) of at least one identifier (124) on the security document (200); Determining a key or part of a key to decrypt the cryptographically encrypted machine-readable verification data from the identifier (124); Decryption (S32) of the optically encrypted and cryptographically encrypted machine-readable verification data using the key or key part; Verification (S42) of the value document (200) by comparing the decrypted machine-readable verification data with at least one identifier (124).

29. A method for verifying a security document according to claims 16 to 19, comprising: Capture (Sl) optically and cryptographically encrypted machine-readable verification data provided in an obfuscation element (110); Capture (S2) of at least one identifier (124) on the security document (200), wherein the identifier (124) includes key data for decrypting the cryptographically encrypted machine-readable verification data; Veridos GmbH, Case: 514590-WO Queries (S5) of a key or part of a key to decrypt the cryptographically encrypted machine-readable verification data from a verification device (400); Decryption (S33) of the optically encrypted and cryptographically encrypted machine-readable verification data using the requested key or key part; Verify (S42) the value document (200) using the decrypted machine-readable verification data.

30. A method according to any one of claims 27 to 29, comprising: Determine (S6) an angle of inclination of the security document (200) with respect to the verification device (400); and Checking (S7) the detected marking (124) in relation to the determined angle of inclination.

31. A method according to any one of claims 27 to 30, comprising: Create (S8) at least one instruction for action; and Providing (S9) at least one instruction for action to a user of the verification device (400).

Images