RU2536367C1 - Method of determining authenticity of documents, monetary notes, valuable items - Google Patents

Abstract

FIELD: printing.

SUBSTANCE: invention relates to methods of determining the authenticity of documents, monetary notes, valuable items having randomly distributed identification elements. In the method the asymmetric key to decode the information is obtained from the emitent of the document, contained in the graphic image applied on the checked object or on the accompanying certificate. Before comparing the signals, the method additionally comprises the step of additional decoding, using the obtained asymmetric key of the identification information applied on the checked object or on the accompanying certificate, so that in the comparison module the signals are compared, corresponding to the decoded information from the decoder of the scanner and the pay-off stand information.

EFFECT: increase of security and simplification of document processing.

3 cl, 2 dwg

Description

FIELD OF THE INVENTION

The invention relates to methods for reading and recognizing object data, and more particularly to methods for determining the authenticity of documents, banknotes, valuable items having randomly distributed identification elements and having a graphic image with identification information printed on the object being checked or its certificate accompanied, and can be used to verify the authenticity of valuable documents, securities, banknotes, expensive goods, such as jewelry.

The following terms are used below.

An asymmetric key or cipher is the same as a public key cryptographic system, the same as a public key cipher system. Asymmetric, they are called here because instead of one key used for both encryption and decryption, they have two - conditionally called here open and closed. One - private - can be encrypted, and the other - open - can be decrypted, it is impossible to carry out two actions with the same key. In this case, the public key is provided to users, and only the issuer of securities, the manufacturer of valuable goods, the owner of relics or other objects whose authenticity needs to be confirmed, use the private key.

State of the art

Currently, the protection of documents, banknotes, securities and valuable items are acute. There are many ways to authenticate and to authenticate. But existing methods today have several disadvantages.

So, there is a known method for determining the authenticity of documents, banknotes, valuable items that have randomly distributed identification elements and have a graphic image with identification information applied to the object being checked, in which the above graphic images are scanned, identification information contained in the graphic is read using a decoder image, read the parameters of randomly distributed identification elements using a sensor, compare using the module comparing the signals from the decoder corresponding to the identification information contained in the graphic image, and sensor signals corresponding to the parameters of randomly distributed identification elements, the coincidence signal conclude authentication inspected object, see description of patent EP 2485178 A1, D21H 15/06.; G06K 9/00, 08/08/2012.

Its disadvantage is the limited ability to determine the authenticity. Indeed, if the identification information corresponding to randomly distributed identification elements and applied to the object, which can be verified by the graphic image scanner and compared with the graphic image applied to the object being checked or its accompanying certificate, is additionally encoded, then the authentication method will not work, so how it is impossible to recognize additional code. In this case, an outsider who is aware of the principles of protecting the authenticity of the object is capable of independently applying identification information based on the indicated principles to the protected object and thereby mislead the user.

The prior art also knows a method for determining the authenticity of documents, banknotes, valuable items having randomly distributed identification elements and having a graphic image with identification information printed on the object being checked or its certificate accompanied by which the above graphic images are scanned, read using decoder identification information contained in a graphic image, read the parameters of randomly distributed identification elements using a sensor, using a comparison module, the signals from the decoder corresponding to the identification information contained in the graphic image are compared, and the sensor signals corresponding to the parameters of randomly distributed identification elements, when the signals coincide, make a conclusion about the authenticity of the object being checked, see the description of the US patent 2007170265 A1, B42D 15/00; G06K 19/06; G07D 7/12; G07D 7/20, July 26, 2007.

Its disadvantage is the limited ability to determine the authenticity. Indeed, if the identification information corresponding to randomly distributed identification elements and applied to the object, which can be verified by the graphic image scanner and compared with the graphic image applied to the object being checked or its accompanying certificate, is additionally encoded, then the authentication method will not work, so how it is impossible to recognize additional code. In this case, an outsider who is aware of the principles of protecting the authenticity of the object is capable of independently applying identification information based on the indicated principles to the protected object and thereby mislead the user.

The prior art also knows a method for determining the authenticity of documents, banknotes, valuable items having randomly distributed identification elements and having a graphic image with identification information printed on the object being checked or its certificate accompanied by which the above graphic images are scanned, read using decoder identification information contained in a graphic image, read the parameters of randomly distributed identification elements using a sensor, using a comparison module, the signals from the decoder corresponding to the identification information contained in the graphic image are compared, and the sensor signals corresponding to the parameters of randomly distributed identification elements, when the signals match, make a conclusion about the authenticity of the object being checked, the method further includes yourself the stage of receiving from the issuer a document, banknote or manufacturer of a valuable subject of an asymmetric public key for decoded The information contained in the graphic image deposited on the inspected object or on its accompanying certificate, as well as before comparing the signals, the method further includes the step of additional decoding with the help of the obtained public key an asymmetric code by the decoding module of the identification information printed on the object being verified or on the accompanied its certificate, so that in the comparison module the signals corresponding to the decoded information from the scanner decoder and the information are compared from the sensor, see the description of the patent of the Russian Federation for the invention No. 2370377, published on 10/20/2009.

This method is the closest in technical essence and the achieved technical result to the proposed solution and is taken as a prototype of the invention.

Its disadvantage is the limited possibilities of applying the method while increasing the reliability of determining the authenticity of identifiable objects. Indeed, the proposed method is based on the use of randomly distributed identification elements of randomly entered optical fibers, and it can only be used to determine the authenticity of banknotes, but cannot be used for valuable items, such as expensive jewelry, paintings, since they do not have optical fibers. In addition, knowing this method for making a fake, you can pick up a key. Although it is difficult, it is still possible.

Disclosure of invention

Based on this original observation, the present invention mainly aims to propose a method for determining the authenticity of documents, banknotes, valuable items having randomly distributed identification elements and having a graphic image with identification information applied to the object being checked or its accompanying certificate, allowing at least smooth out the above drawback, namely, to provide an extension of the possibilities of using the method while increasing SRI reliability of determining the authenticity of the identifiable objects.

To achieve this goal, as the randomly distributed identification elements of the test object, use the levels or intensities of the glow of the paint in x-ray radiation and / or material defects of the test object. And as a sensor, a device is used, which is a flatbed scanner, combined with an x-ray source, and / or a flaw detector.

Due to this advantageous characteristic, it becomes possible to provide an extension of the possibilities of using the method, since it can be used for a wider range of documents, banknotes, valuable items. And it also becomes possible to increase the reliability of determining the authenticity of identifiable objects, since in order to create a fake one not only needs to know the code, but in general, which identification elements are encoded. Especially if these identification elements are not visible to the naked eye, but require special equipment for detection.

There is a variant of the invention in which an ultrasonic flaw detector is used as a flaw detector, and also in which an X-ray fluorescence device is used as a sensor.

The set of essential features of the invention is unknown from the prior art for devices of similar purpose, which allows us to conclude that the criterion of "novelty" for the invention.

Brief Description of the Drawings

Other features and advantages of the invention clearly follow from the description below for illustration and not being restrictive, with reference to the accompanying drawings, in which:

- figure 1 schematically depicts a functional diagram of a device for verifying the authenticity of documents, banknotes, valuable items having randomly distributed identification elements and having a graphic image with identification information printed on the object being checked or on its accompanying certificate that implements the method according to the invention;

- figure 2 depicts a sequence of steps in the proposed method according to the invention.

A device for verifying the authenticity of documents, banknotes, valuable items that have randomly distributed identification elements and have a graphic image with identification information printed on the object being checked or its certificate, which illustrates the proposed method, includes a scanner 1 of the above graphic image connected with a decryptor 2 of identification information contained in a graphic image, a sensor 3 of randomly distributed identification information ments, the sensor 3 and decoder 2 are connected to the comparison module 4 the identification information received from the decoder 2 and the sensor 3 of randomly distributed identification elements are electrically connected to the indicator 5 of the inspected object authentication.

The authentication device further comprises a decoding module 6, associated with the decoder 2 and the comparison module 4. The decoding module is adapted for decoding based on the public key of the asymmetric code.

The checked object is designated as 7. The field with the applied graphic information is conventionally shown as 8, the graphic information itself is shown as a bar code. A field with randomly distributed identification elements is conventionally shown as 9.

The broken arrows conventionally show the process of scanning and reading information by the sensor 3.

As a graphic image, any set of graphic symbols can be used, mainly a bar code, a bar code, a QR code, that is, widespread options for applying information to an object.

As a scanner 1 of a graphic image, scanners of a bar code, a bar code, a QR code, including mobile devices having a camera, for example cell phones, can be used.

As randomly distributed identification elements can be used various, both specially created, for example, colored hairs in banknotes, and elements of natural origin, for example, paper fibers.

As the sensor 3 of randomly distributed identification elements, both image scanners having a special computing unit processing the information received and other devices depending on the choice of randomly distributed identification elements can be used. For example, a device for X-ray fluorescence or an ultrasonic flaw detector (see example below).

As asymmetric coding, various methods of such coding can be applied. For example:

- RSA, a method based on the computational complexity of the problem of factorizing large integers,

- Diffie-Hellman, a method based on the computational complexity of taking logarithms in finite fields,

- ECDSA (based on the commutativity of indicators in sequential exponentiation).

And others like them, for example GOST R 34.10-2001.

The implementation of the invention

The method for determining the authenticity of documents, banknotes, valuable items that have randomly distributed identification elements and have a graphic image with identification information applied to the object being checked or its certificate accompanied consists of the following steps (see Fig. 2).

Before verification, the following preliminary steps are expected.

Stage A01. As randomly distributed identification elements of the object being checked, certain parameters are selected that are inherent in the object itself, the material from which it is made. The device’s sensor is adapted to read just such parameters and turn it into a sequence of numbers.

Stage A02. This sequence of digits can be encoded using the asymmetric private key.

Stage A03. Already this new coded sequence of numbers and letters is converted into a graphic image and applied directly to the object itself or to the certificate that is attached to it, for example, if the museum value is used as an object. As a graphic image, a barcode or a QR code can be selected.

The proposed method can now easily verify the authenticity of such an object having randomly distributed identification elements and having a graphic image with identification information printed on the object itself or on its certificate in the form of a bar code or QR code.

Enough for this:

- Stage A1. The scanner reads the above barcode or QR code,

- Stage A2. The decoder of the identification information contained in this graphic image recognizes it;

- Stage A3. The decoding module is decrypted, and for this the asymmetric encoding public key is used.

- Stage A4. The sensor randomly distributed identification elements, read the location of randomly distributed identification elements on the object.

- Stage A5. The information obtained in step A4 is converted into a sequence of digits.

- Stage A6. The comparison module correlates the numerical sequence corresponding to the identification information received from the sensor randomly distributed identification elements and from the decoder.

- Stage A7. If the numerical sequences match, the authenticity of the object is ascertained, while the device indicator, for example, a green light lights up, if the numerical sequences do not match, the counterfeit object is detected, the device indicator lights up in another mode, for example, a red light.

The sequence of steps is approximate and allows you to rearrange, add or perform some operations at the same time without losing the ability to verify the authenticity of the object. Modifications of the method include other authentication indication indications, various identification element selection methods, various asymmetric encoding methods.

As well as various options for applying graphic elements, for example, a completely graphic element can be replaced with a broader concept - an element that carries an information component. An example is NFC technology (“near field communication” - short-range wireless high-frequency communication technology that enables the exchange of data between devices located at a distance of about 10 centimeters) and RFID (a method for automatically identifying objects in which data is read or written using radio signals stored in the so-called transponders).

Also, the encoding process can be attributed to modifications, since the data themselves can be encoded with an asymmetric key directly or indirectly, for example, encoding a hash and / or checksum (say SHA256) of the data. In the second case, it is an electronic signature method.

Examples of the use of the proposed technical solution

Example 1. Banknote authentication

As randomly distributed identification elements of bank notes, the coordinates of the fibers of the paper bank notes can be used. For example, a sequence of coordinates of the ends of these paper fibers can be taken, with a banknote of a coordinate system arbitrarily selected and assigned to the paper.

Further, this sequence of digits can be encoded using the asymmetric code private key. Already this new coded sequence of numbers and letters is converted into a graphic image and applied directly to the banknote. As a graphic image, a barcode or a QR code can be selected.

The proposed method can now easily verify the authenticity of such banknotes having randomly distributed identification elements, namely, in this example, paper fibers and having a graphic image with identification information printed on a banknote in the form of a bar code or QR code.

For this:

- the scanner reads the above bar code or QR code;

- further, the decoder of the identification information contained in this graphic image recognizes it;

- the decoding module is decrypted, and for this, the public key of asymmetric encoding is used;

- a sensor of randomly distributed identification elements, and in this case this sensor can be the same or a similar scanner, read the location of the paper fibers on the banknote;

- convert the coordinates of the ends of the paper fibers into a sequence of numbers;

- the comparison module correlates the numerical sequence corresponding to the identification information received from the sensor randomly distributed identification elements, namely the location of the paper fibers on the banknote, and from the decoder;

- when the numerical sequences coincide, the authenticity of the banknote is ascertained, the indicator of the device lights up, for example, a green light; if the numerical sequences do not match, a fake banknote is detected, the device indicator in another mode lights up, for example, a red light.

Example 2. Authentication of paintings

As randomly distributed identification elements of the picture can be used levels or intensities of the glow of the paint in x-ray radiation. As a sensor, a device is used, which is a flatbed scanner, combined with an x-ray source. Since under the influence of x-ray radiation on the surface of the paint the electrons from the beam pass from one energy level to another, the paint begins to glow, and it shines differently, gives different spectra and intensity.

- The specified sensor takes data;

- fix them with a camera or scanner;

- the decoding module is decrypted, and for this, the public key of asymmetric encoding is used;

- the scanner reads the identification bar code or QR code printed on the back of the picture or on a certificate for it;

- further, the decoder of the identification information contained in this graphic image recognizes it;

- the comparison module correlates the numerical sequence corresponding to the identification information received from the sensor randomly distributed identification elements and from the decoder;

- when the numerical sequences match, the authenticity of the picture is ascertained, the indicator of the device lights up, for example, a green light; if the numerical sequences do not match, a fake picture is detected, the device indicator in another mode lights up, for example, a red light.

Example 3. Validation of valuable goods or museum relics

Defects of their material are used as randomly distributed identification elements of valuable goods or museum relics, such as a collection knife, precious weapons.

The sensor is then a flaw detector, which is adapted for, for example, ultrasonic flaw detection. In this example, everything else is similar to example 2.

The proposed method for determining the authenticity of documents, banknotes, valuable items that have randomly distributed identification elements, has a clear purpose, can be carried out by a specialist in practice and, when implemented, ensures the implementation of the declared purpose. The possibility of being implemented by a specialist in practice follows from the fact that for each feature included in the claims on the basis of the description, the material equivalent is known, which allows us to conclude that the criterion of "industrial applicability" for inventions is met.

So, due to the fact that as a randomly distributed identification elements of the inspected object, levels or intensities of the glow of the paint in the x-ray radiation and / or defects in the material of the inspected object and the use of a device that is a flatbed scanner combined with an x-ray source are used as a sensor, and / or flaw detector, and the set technical result is achieved, namely, ensuring the expansion of the possibilities of using the method while increasing the dignity ernosti determine the authenticity of identifiable objects.

Claims (3)

1. A method for determining the authenticity of documents, banknotes, valuable items that have randomly distributed identification elements and have a graphic image with identification information printed on the object being checked or its certificate accompanied by which the above graphic images are scanned, identification information is read using a decoder , enclosed in a graphical image, read the parameters of randomly distributed identification elements using a sensor, with using the comparison module, the signals from the decoder corresponding to the identification information contained in the graphic image are updated and the sensor signals corresponding to the parameters of randomly distributed identification elements, when the signals coincide, make a conclusion about the authenticity of the object being checked, the method further includes the step of receiving from the issuer document, banknote or manufacturer of a valuable subject of an asymmetric public key for decoding information contained in the image applied to the object being verified or its certificate accompanied, as well as before signal comparison, the method further includes the step of additional decoding the asymmetric code using the obtained public key by the decoding module of the identification information applied to the object being verified or its certificate, so that in the comparison module, the signals corresponding to the decoded information from the scanner decoder and the information from the sensor, characterized by I mean that, as randomly distributed identification elements of the object under test, the levels or intensities of the glow of the ink in the x-ray radiation and / or defects in the material of the object to be tested are used, and because the device that is a flatbed scanner combined with the x-ray source is used as a sensor, and / or flaw detector. 2. The method according to p. 1, characterized in that an ultrasonic flaw detector is used as a flaw detector. 3. The method according to p. 1, characterized in that the device used for x-ray fluorescence as a sensor.

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