CN109644187B - Optical label anti-counterfeiting method and system based on active response - Google Patents

Optical label anti-counterfeiting method and system based on active response Download PDF

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CN109644187B
CN109644187B CN201780051629.0A CN201780051629A CN109644187B CN 109644187 B CN109644187 B CN 109644187B CN 201780051629 A CN201780051629 A CN 201780051629A CN 109644187 B CN109644187 B CN 109644187B
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optical label
verification code
identification information
server
optical
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CN109644187A (en
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王晓东
方俊
李江亮
苏爱民
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Beijing Whyhow Information Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0807—Network architectures or network communication protocols for network security for authentication of entities using tickets, e.g. Kerberos
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/018—Certifying business or products
    • G06Q30/0185—Product, service or business identity fraud
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3271—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using challenge-response

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Abstract

An anti-counterfeiting method and system of an optical communication device based on active response are provided. The anti-counterfeiting method comprises the following steps: the method comprises the steps that a first server receives an authentication request aiming at an optical communication device to be authenticated from image acquisition equipment of a user, wherein the authentication request comprises identification information of the optical communication device; the first server determines an optical communication device corresponding to the identification information; the first server generating a verification code in response to the authentication request; and the first server sends the verification code to the image acquisition equipment and the optical communication device corresponding to the identification information and instructs the optical communication device corresponding to the identification information to present the verification code, so that the user can judge the authenticity of the optical communication device to be identified based on the information obtained when the image acquisition equipment acquires the image of the optical communication device to be identified and the verification code received by the image acquisition equipment.

Description

Optical label anti-counterfeiting method and system based on active response
Technical Field
The invention belongs to the technical field of optical information, and particularly relates to an anti-counterfeiting method and an anti-counterfeiting system of an optical communication device based on active response. Optical communication devices are capable of transmitting different information by emitting different light, which may also be referred to herein as "optical labels," both of which may be used interchangeably throughout this application.
Background
The optical label transmits information by emitting different lights, which has advantages of long distance, loose requirement of visible light condition, strong directivity, locatability, and the information transmitted by the optical label can be rapidly changed with time, thereby providing a large information capacity. Therefore, compared with the traditional two-dimensional code, the optical label has stronger information interaction capacity, thereby providing great convenience for users and merchants. Due to the registration openness of the optical label, anyone can publish personal services or information by purchasing or applying for the optical label, which makes the possibility that lawless persons counterfeit the optical label. In order to prevent illegal counterfeiting of optical labels, it is necessary to provide an anti-counterfeiting method for optical labels.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an optical label anti-counterfeiting method and an optical label anti-counterfeiting system, which have the advantages of simple and reasonable process, convenience in use and good anti-counterfeiting performance.
One aspect of the present invention relates to an anti-counterfeiting method for an optical communication device, comprising: the method comprises the steps that a first server receives an authentication request aiming at an optical communication device to be authenticated from image acquisition equipment of a user, wherein the authentication request comprises identification information of the optical communication device; the first server determines an optical communication device corresponding to the identification information; the first server generating a verification code in response to the authentication request; and the first server sends the verification code to the image acquisition equipment and the optical communication device corresponding to the identification information and instructs the optical communication device corresponding to the identification information to present the verification code, so that the user can judge the authenticity of the optical communication device to be identified based on the information obtained when the image acquisition equipment acquires the image of the optical communication device to be identified and the verification code received by the image acquisition equipment.
Another aspect of the invention relates to a server configured for performing the above anti-counterfeiting method.
Another aspect of the invention relates to an anti-counterfeiting system for an optical communication device, comprising: a first server configured to: receiving an authentication request for an optical communication device to be authenticated from an image acquisition apparatus of a user, the authentication request including identification information of the optical communication device; determining an optical communication device corresponding to the identification information; generating a verification code in response to the authentication request; and sending the verification code to the image acquisition equipment and the optical communication device corresponding to the identification information, and indicating the optical communication device corresponding to the identification information to present the verification code, so that the user can judge the authenticity of the optical communication device to be identified based on the information obtained when the image acquisition equipment acquires the image of the optical communication device to be identified and the verification code received by the image acquisition equipment.
Another aspect of the invention relates to an anti-counterfeiting method for an optical communication device, comprising: sending an authentication request for an optical communication device to be authenticated to a first server from an image acquisition device of a user, wherein the authentication request comprises identification information of the optical communication device; receiving, by the image acquisition device, a verification code from the first server, wherein the verification code is also sent by the first server to the optical communication device corresponding to the identification information for presentation by the optical communication device; and the image acquisition equipment judges the authenticity of the optical communication device to be identified based on the information obtained when the image of the optical communication device to be identified is acquired and the verification code received from the first server.
Another aspect of the invention relates to an image acquisition apparatus comprising an image acquisition element, a processor and a memory, the memory having stored therein a computer program which, when executed by the processor, is capable of being used to implement the above anti-counterfeiting method.
Another aspect of the invention relates to an anti-counterfeiting method for an optical communication device, comprising: the method comprises the steps that a first server receives an authentication request aiming at an optical communication device to be authenticated from image acquisition equipment of a user, wherein the authentication request comprises identification information of the optical communication device; the first server determines an optical communication device corresponding to the identification information; the first server generating a verification code in response to the authentication request; the first server sends the verification code to the optical communication device corresponding to the identification information and instructs the optical communication device corresponding to the identification information to present the verification code; the first server receives information obtained when the image of the optical communication device to be authenticated is acquired from image acquisition equipment of a user; and the first server compares the information with the verification code to judge the authenticity of the optical communication device to be identified.
Another aspect of the invention relates to a server configured for performing the above anti-counterfeiting method.
Another aspect of the invention relates to an anti-counterfeiting system for an optical communication device, comprising: a first server configured to: receiving an authentication request for an optical communication device to be authenticated from an image acquisition apparatus of a user, the authentication request including identification information of the optical communication device; determining an optical communication device corresponding to the identification information; generating a verification code in response to the authentication request; sending the verification code to an optical communication device corresponding to the identification information, and instructing the optical communication device corresponding to the identification information to present the verification code; receiving information obtained when the image of the optical communication device to be authenticated is acquired from an image acquisition device of a user; and comparing the information with the verification code to judge the authenticity of the optical communication device to be authenticated.
Another aspect of the invention relates to an anti-counterfeiting method for an optical communication device, comprising: sending an authentication request for an optical communication device to be authenticated to a first server from an image acquisition device of a user, wherein the authentication request comprises identification information of the optical communication device; after sending the request, the image acquisition equipment acquires an image of the optical communication device to be authenticated to obtain information; and the image acquisition equipment sends the information to the first server, and the information can be used by the first server to judge the authenticity of the optical communication device to be identified.
The invention also provides an optical label anti-counterfeiting method based on active response, which comprises the following steps,
step 1, when an optical label is collected through personal mobile equipment, reading an ID number of the optical label, and inquiring a network service address of the optical label corresponding to the ID number to a third-party institution server providing directory service according to the ID number;
step 2, accessing the optical label network server of the optical label according to the received network service address, sending the ID number to the optical label network server and providing a request for identifying the optical label;
step 3, the optical label network server inquires the position of the corresponding optical label according to the received ID number and randomly generates a verification code r; meanwhile, a sending time t and a designated time increment delta t are designated as the life cycle of the verification code to form a triple (r, t, delta t); the optical label network server sends the triad (r, t, delta t) to the personal mobile equipment and the optical label at the same time;
step 4, within the time delta t after the triple (r, t, delta t) is received, the optical label displays the verification code r in a mode of one frame or continuous multiple frames, wherein r is a natural number; reading a random number r' from the optical label by the personal mobile equipment within a time interval [ t, t + delta t ]; and the personal mobile equipment compares the read random number r 'with the received verification code r, if the random number r' is consistent with the received verification code r, the optical label passes validity verification, otherwise, the optical label is determined to be a false light label, and after the authentication is finished, the result is informed to the optical label network server, so that the authentication is finished.
Preferably, in step 1, the ID is number information capable of uniquely identifying the optical tag in the optical tag transmission information.
Preferably, in step 1, the network service address is a url network link address.
Preferably, in step 3, the verification code r is a natural number of 6 bits or more.
Preferably, in step 4, when the optical label displays the verification code r in a mode of one frame of the optical label, a mark capable of marking the frame as an authentication frame is added at the same time; the personal mobile device reads the tagged authentication frame from the optical tag over the time interval t, t + Δ t to get the random number r'.
Preferably, when a plurality of personal mobile devices simultaneously inquire the network service address of the optical label corresponding to the ID number from a third-party institution server providing directory service; the personal mobile devices corresponding to the personal mobile devices respectively send the ID numbers to the optical label network server and provide a request for identifying the optical labels; the optical label network server inquires the position of the corresponding optical label according to the received ID number, randomly generates a plurality of verification codes r, and forms a plurality of triplets at different sending time to be sent to the plurality of personal mobile devices and the optical label respectively; the optical labels respectively start to continuously display the verification code form in the corresponding verification code life cycle from the corresponding sending time; and the plurality of personal mobile devices respectively read the sending time of the corresponding fragments and the random numbers displayed in the life cycle, and carry out validity verification.
Drawings
Embodiments of the invention are further described below with reference to the accompanying drawings, in which:
FIGS. 1A and 1B illustrate an optical label suitable for use in the anti-counterfeiting method of the present invention;
FIG. 2 illustrates an optical label anti-counterfeiting system in a single-user scenario according to one embodiment of the present invention;
FIG. 3 illustrates an optical label anti-counterfeiting system in a multi-user scenario according to one embodiment of the present invention;
FIG. 4 illustrates a replay attack scenario;
FIG. 5 illustrates an optical label anti-counterfeiting process according to one embodiment of the invention; and
fig. 6 shows an optical label anti-counterfeiting process according to another embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by the following embodiments with reference to the accompanying drawings, which are used for explaining the present invention and not for limiting the present invention.
Optical labels communicate information by emitting different lights, and the information communicated by optical labels may change over time. Fig. 1A shows an optical label suitable for the anti-counterfeiting method of the present invention, which includes a 9 × 9 array of light-emitting units, the array can be divided into a signal unit 1 as a data bit, a dynamic blinking positioning mark 2, a static positioning mark 3, and a blank bit 4, where the dynamic blinking positioning mark 2 is a larger square in the middle of the optical label (a 3 × 3 array of light-emitting units), the static positioning mark 3 is three larger frames (also a 3 × 3 array of light-emitting units) located at the corners of the optical label, and the dynamic blinking positioning mark 2 and the three static positioning marks 3 together form a set of positioning identifiers. Each signal cell 1 and each blank bit 4 may correspond to a light emitting cell.
In addition, although the optical label in the embodiment shown in fig. 1A employs the same array of light-emitting units, in some embodiments, light-emitting units of different sizes may be used (for example, a larger light-emitting unit is designed for a larger dynamic flashing positioning mark, and a smaller light-emitting unit is designed for a smaller signal unit). In some embodiments, one signal unit may correspond to a plurality of light emitting units, for example, one signal unit itself may be constituted by an array of light emitting units. Similarly, one blank bit may also correspond to a plurality of light emitting cells. The light emitting unit may include a light emitting source therein, which may use various light emitting technologies, such as using LED lamps. The number of the light emitting sources in each light emitting unit may be one or more according to different use requirements.
The optical label can also comprise a controller, a battery or a power supply and the like, wherein the controller is used for controlling the light wave frequency and the flashing mode of the light-emitting source in the light-emitting unit, and the battery or the power supply provides energy for the controller and the light-emitting source. The controller can control each light-emitting unit independently, and can also control some of the light-emitting units uniformly, for example, the controller can control the light-emitting units of the dynamic flicker positioning mark 2 uniformly, control the light-emitting units of the static positioning mark 3 or parts thereof uniformly, and control the light-emitting units of the blank bits 4 uniformly.
In the operating state, the dynamic blinking positioning marker 2 may blink at a certain frequency, which may be a change of a property of the light. The property is any property that can be recognized by the optical imaging device in the present application, for example, it may be a property that is perceptible to the human eye, such as intensity, color, wavelength, etc., of light, or may be another property that is not perceptible to the human eye, such as intensity, color, or wavelength change of electromagnetic wavelengths outside the visible range of the human eye, or any combination of the above properties. The change in the property of the light may be a change in a single property or a change in a combination of two or more properties. When selecting the intensity of the light as the property, the light source may simply be selected to be switched on or off. In the following, for simplicity, the light properties are changed by switching the light source on or off, but a person skilled in the art will understand that other ways for changing the light properties are also possible. Fig. 1B shows the optical label when the properties of the light emitted by the dynamic blinking positioning indicator 2 change.
In addition, the above definition of the properties applies equally to the static positioning identity 3, the blank bit 4 and the properties of the light emitted by the signal unit 1. It should be noted that the dynamic blinking positioning indicator 2, the static positioning indicator 3, the blank bit 4 and the signal unit 1 may work with different attributes, for example, the dynamic blinking positioning indicator 2 may implement blinking effects with different color transformations, and the signal unit 1 may use different light intensities to represent different information.
When the dynamic flickering positioning mark 2 flickers, multiple frames of images can be continuously collected through the optical imaging device, and the dynamic flickering positioning mark 2 can be quickly and accurately identified and the position of the dynamic flickering positioning mark can be determined by performing image difference on the collected multiple frames of images. After the dynamic blinking positioning markers 2 are identified, the exact position of the static positioning markers 3 can be further identified in their vicinity.
The static positioning markers 3 exhibit a fixed optical pattern during operation. The static positioning indicator 3 in one embodiment appears as a frame of a word-back, and the proportion of pixels of different attributes in the horizontal and vertical directions (black and white pixels in this embodiment) at its horizontal and vertical centerlines may be set to 1: 1. In addition, to more accurately determine the boundary of the static position mark 3 defined by black pixels, 4 blank bits made up of white pixels may be set in the optical label as shown in fig. 1A, which ensures that the pixel ratio of black and white of the static position mark 3 obeys 1: 1 whether scanned from the horizontal or vertical direction.
After the positions of the dynamic and static blinking positioning markers 2, 3 are determined, the positions of the individual signaling units 1 in the optical label can be determined by means of the positions of the dynamic and static blinking positioning markers 2, 3 for the purpose of data recognition or reading. The signal unit 1 is a small square light-emitting unit except for the dynamic flashing positioning mark 2, the static positioning mark 3 and the blank bit 4 in the optical label, or may be a part of the light-emitting units.
In addition, when the user photographs the optical label, it may not be directly opposite the optical label, in which case there may be some distortion or deformation in the imaging of the optical label. These distortions or deformations may be taken into account in the identification of the optical labels based on the principle of perspective in optical imaging.
The light emitted by each signalling unit 1 may have a specific property, which as mentioned above may be any property that can be perceived by the optical imaging device, including properties that are not perceptible by the human eye. In one embodiment, "0" or "1" of binary digital information may be represented by controlling the turn-on and turn-off of the light emitting unit corresponding to each signal unit 1, so that all the signal units 1 in one frame of the picture of the optical label may be used to represent one binary digital information sequence. As will be appreciated by those skilled in the art, each signal unit 1 may be used to represent not only a binary number, but also ternary or larger data. For example, each signal unit 1 may be made to represent ternary or more data by setting the intensity of the light emitted by the light emitting unit to be selectable from three or more levels, or by setting the color of the light emitted by the light emitting unit to be selectable from three or more colors, even by using a combination of intensity and color, and other ways that are considered feasible by those skilled in the art.
In another embodiment, since the signal unit 1 in the optical label can change the property of the light emitted by the signal unit at a certain frequency (the frequency can be the same as or different from the flashing frequency of the dynamic flashing positioning mark 2), the optical label can represent different data information at different times, for example, different binary digital information sequences. Thus, when the optical imaging device is used to continuously capture an optical label (e.g., at a rate of 30 frames/second), each frame of the image can be used to represent a set of information sequences.
In the above embodiments, the optical label is schematically arranged as a 9 × 9 array formed by light emitting units, the dynamic blinking positioning indicators 2 therein are arranged as a larger square in the middle of the optical label (a 3 × 3 array formed by light emitting units), and the static positioning indicators 3 therein are arranged as three larger letter boxes at the corners of the optical label (also a 3 × 3 array formed by light emitting units), but those skilled in the art will understand that the shape and size of the optical label, etc., the size, shape, position, number, etc. of the dynamic blinking positioning indicators 2 and the static positioning indicators 3 are not limited to the above embodiments, but may be changed according to actual needs. For example, the optical labels may not be a 9 x 9 array, or even a square; the dynamic flicker positioning mark 2 may not only have one, but also may not be located in the middle of the optical label, and may not be a 3 × 3 array, or even a square; the static positioning markers 3 may not be three, may not be located at the corners of the optical label, may not be a 3 x 3 array, or even may not be square. In one embodiment, blank bits may be omitted in the optical label.
The optical label may be imaged using an optical imaging device or an image acquisition device as is common in the art. The optical imaging device or image acquisition device may comprise an image acquisition element, a processor, a memory, etc. The optical imaging device or the image capturing device may be, for example, an intelligent mobile terminal with a shooting function, including a mobile phone, a tablet computer, smart glasses, and the like, which may include an image capturing apparatus and an image processing module. A user finds the optical label by naked eyes within a range of sight distance from the optical label, and scans the optical label and carries out information capturing and interpretation processing by enabling the mobile terminal imaging sensor to face the optical label. The video capture frequency of the mobile terminal may be set to be greater than or equal to 2 times the light label blinking frequency. The process of identifying and decoding is finally completed by collecting video and image information shot in a camera of the mobile phone, transmitting an image frame into a memory of the mobile phone and using a processor to perform decoding operation. In one embodiment, to avoid duplication, omission, etc. of image frames, a sequence number, check bits, time stamps, etc. may be included in the information conveyed by the optical label. If desired, a start frame or an end frame, or both, may be provided in the plurality of image frames to indicate the start or end position of a complete cycle of the plurality of image frames, and the start frame or the end frame may be set to display a particular data combination, such as: all 0's or all 1's, or any particular combination that is not identical to the information that may actually be displayed.
Fig. 2 illustrates an optical label anti-counterfeiting system in a single-user scenario according to one embodiment of the present invention. As shown in fig. 2, the system includes an optical label 23, a server 5, and a server 6. The server 5 is able to communicate with the optical label 23, which is the data or service provider of the optical label 23 and is therefore also referred to hereinafter as the optical label network server 5. The server 6 may be any trusted server, for example a server of a trusted authority, and will therefore also be referred to as third party authority server 6 in the following. The third party authority server 6 stores a network address (e.g., domain name information) of an optical label web server (e.g., optical label web server 5) corresponding to an optical label (e.g., optical label 23) registered at the server. User 21 may interact with the anti-counterfeiting system using his image capture device 22 (e.g., a cell phone). Image capture device 22 is typically equipped with communication capabilities.
It should be noted that in some embodiments, the user 21 may already know the network address L of the optical label web server 5 or may obtain the network address L through other ways, for example, the network address L is well known to the user, or the network address L is pre-stored in an application program (APP) of the image capturing device 22 for optical label information capturing. In this case, the user can directly access the optical label web server 5 through the network address L without obtaining the network address L through the third party agency server 6. In this case, the third-party agency server 6 no longer needs to be arranged in the forgery prevention system shown in fig. 2, that is, the third-party agency server 6 is not necessary.
An optical label anti-counterfeiting process for a single user according to one embodiment of the present invention is illustrated in fig. 5 and described in detail below.
When user 21 uses his image capture device 22 to capture information for optical label 23, user 21 may be in doubt as to the authenticity of optical label 23. For example, the user 21 may be concerned that the optical label 23 is a counterfeit optical label. In this case, user 21 may obtain identification information (e.g., an ID number) from optical label 23 via image capture device 22, which is any information that may be used to identify the optical label (step 501). The identification information may be the information presented by the optical label 23 or may be part of the information presented by the optical label 23. The optical label 23 may present the above information by one display, or may present the above information by a plurality of displays. In the case of multiple displays, the user 21 may continuously capture a plurality of frames of images of the optical label 23 by the image capturing device 22 and obtain corresponding information based on the plurality of frames of images.
Based on the identification information obtained from the optical label 23, the user 21 may query the third-party agency server 6 for the network address of the optical label network server (in this embodiment, the optical label network server 5) corresponding to the identification information through the image capturing device 22 (step 502).
After receiving the query request from the user 21, the third-party agency server 6 may perform a query and provide the network address L of the optical label web server 5, which may be, for example, a url network link address, to the image capturing device 22 of the user 21 (step 503).
It should be noted that in some embodiments, the user 21 may already know the network address L of the optical label web server 5 or may obtain the network address L through other ways, for example, the network address L is well known to the user, or the network address L is pre-stored in an application program (APP) of the image capturing device 22 for optical label information capturing. In this case, the user can directly access the optical label web server 5 through the network address L without performing the aforementioned steps.
The user 21 accesses the optical label web server 5 through the network address L using the image capturing device 22 and makes a request for authentication of the optical label 23 to the optical label web server 5 (step 504). The user 21 may provide identification information obtained from the optical label 23, which may be included in the request, to the optical label network server 5 via the image capturing device 22.
After receiving the request for authenticating the optical tag 23, the optical tag network server 5 queries the optical tag corresponding to the identification information, generates an authentication code r (e.g., in a random or pseudo-random manner), and specifies a transmission time t and a time increment Δ t (step 505), thereby forming a triplet (r, t, Δ t). The sending time t is the time when the optical label network server 5 sends the triplet, which is also the starting time of the validity period of the verification code r. The time increment Δ t is used to determine the end time (t + Δ t) of the validity period of the authentication code r together with the transmission time t. Thus, the time interval [ t, t + Δ t ] may be used as the validity period of the verification code r in which the verification code r is valid.
The optical label network server 5 sends the triplet (r, t, Δ t) to the image capturing device 22 and the optical label corresponding to the identification information (step 506). Preferably, the optical label network server 5 sends the triplet (r, t, Δ t) to the image capturing device 22 and the optical label corresponding to the identification information at the same time.
It should be noted that the optical label corresponding to the identification information may be the optical label 23 (for example, the optical label 23 is a real optical label) or may not be the optical label 23 (for example, the optical label 23 is a fake optical label which is fake with the identification information of the real optical label).
After receiving the triplet (r, t, Δ t), the optical label corresponding to the identification information presents the verification code r on the optical label (step 507). Preferably, the optical label corresponding to the identification information presents the verification code r immediately after receiving the triplet (r, t, Δ t). In one embodiment, the optical label may present the verification code r at any time in the time interval [ t, t + Δ t ]. The optical label may present the verification code r through one display, or may present the verification code r through multiple displays. In the case of multiple displays, the user 21 may continuously capture, by the image capture device 22, multiple frames of images of the optical label (which may contain serial numbers, time stamps, etc. to avoid duplication, omission, etc. of image frames), and obtain corresponding authentication information based on the multiple frames of images. In presenting the verification code r, the optical label may construct the mark V in any identification manner to identify that the verification code r is currently displayed, but not other data. The optical label may present the verification code r only once (as described above, each presentation of the verification code r may involve multiple displays of the optical label), or may present the verification code r multiple times in a sequential or spaced manner over the time interval [ t, t + Δ t ].
After receiving the triplet (r, t, Δ t), the image capturing device 22 stores the verification code r and captures an image of the optical label 23 within a time interval [ t, t + Δ t ]. Among the acquired images of the frames of the optical label 23, one or more frames marked with the mark V are selected, and the authentication information r' is extracted from the one or more frames (step 508).
If the user 21 fails to obtain the verification information r' (e.g., does not find the image frame containing the mark V) within the time interval [ t, t + Δ t ] through the image capturing device 22, it may be considered that the optical label 23 does not receive the triplet (r, t, Δ t) from the optical label network server 5 (i.e., the optical label corresponding to the identification information is not the optical label 23), and therefore, it may be determined that the optical label 23 is illegal or counterfeit.
If the image capturing device 22 obtains the verification information r ', it may compare the verification code r received from the optical label web server 5 with the verification information r' obtained from the optical label 23 (step 509), and if the two match, consider the optical label 23 to be authentic or legitimate (step 510), otherwise consider the optical label 23 to be counterfeit or illegitimate (step 511). In one embodiment, the two match each other means that they are the same. In other embodiments, matching does not require that the two be identical, so long as there is some predetermined relationship or association between the two. If during the verification process it is found that the time interval t, t + Δ t has been exceeded, image capture device 22 may prompt user 21 for a verification timeout and user 21 may choose to reinitiate authentication of optical label 23. The image capturing device 22 may transmit the authentication result to the optical label web server 5 or the third party agency server 6 after authenticating the optical label 23.
In one embodiment, the sending time t may not be the time when the optical label network server 5 sends the triplet, but instead it may be replaced by a time t 'specifying the time at which the optical label presents the verification code r or a starting time t' at which the verification code r can be presented. The optical tag may present the verification code r at the time t 'or at any time within the time interval [ t', t '+ Δ t ] after receiving the verification code r and the time t'.
In one embodiment, the optical label network server 5 may directly specify the end time of the validity period of the verification code r instead of specifying the transmission time t and the time increment Δ t, and transmit the verification code r and the end time to the image capture device 22 and the optical label corresponding to the identification information. The optical label corresponding to the identification information may present the verification code r immediately after receiving the verification code r and the termination time, or may present the verification code r at any time before the termination time. Image capture device 22 may continue to capture images of optical label 23 prior to the termination time.
In one embodiment, the optical label web server 5 may not even specify the end time of the validity period of the verification code r, but only transmit the verification code r to the image capture device 22 and the optical label corresponding to the identification information. Under normal communication conditions, the time for receiving the verification code r by the image capturing device 22 and the optical tag corresponding to the identification information does not differ too long, and the optical tag corresponding to the identification information may perform one or more presentations of the verification code r after receiving the verification code r, or may perform one or more presentations of the verification code r after waiting a little bit after receiving the verification code r (considering the situation that the time for receiving the verification code r by the image capturing device 22 may be later). The image capturing device 22 may perform a period of continuous image capturing of the optical label 23 after receiving the verification code r.
Fig. 3 illustrates an optical label anti-counterfeiting system in a multi-user scenario according to an embodiment of the present invention, and three users are schematically illustrated in fig. 3. As shown in fig. 3, the system includes an optical label 37, an optical label web server 5 and a third party authority server 6. The anti-counterfeiting system in fig. 3 is the same as or similar to that in fig. 2, except that the application scenario is different, and therefore, the description thereof is omitted. In addition, as described above, the third party agency server 6 is not essential. User 31, user 33, and user 35 may interact with the anti-counterfeiting system using their respective image capture devices 32, 34, and 36, respectively.
For the case where only one user authenticates the optical label 37 at a time (e.g., the user 31, the user 33, and the user 35 request to authenticate the optical label 37 at different times), the above-described anti-counterfeiting method for a single user may be performed separately for each user at different times.
In the case where two or more users authenticate the optical label 37 at the same time or almost the same time, the flow of the active response anti-counterfeit method according to an embodiment of the present invention is as follows (taking the case where three users authenticate at the same time as an example).
When the user 31, the user 33, and the user 35 respectively collect information of the optical label 37 through the image collecting device 32, the image collecting device 34, and the image collecting device 36, the user 31, the user 33, and the user 35 all have doubts about the authenticity of the optical label 37. In this case, the user 31, the user 33, and the user 35 may obtain identification information (e.g., an ID number) from the optical label 37 through the image capturing device 32, the image capturing device 34, and the image capturing device 36, respectively, the identification information being any information that may be used to identify the optical label.
Based on the identification information obtained from the optical label 37, the user 31, the user 33, and the user 35 can query the third-party agency server 6 for the network address of the optical label network server (in this embodiment, the optical label network server 5) corresponding to the identification information through the image capturing device 32, the image capturing device 34, and the image capturing device 36, respectively.
After receiving the query requests from the users 31, 33, 35, the third-party organization server 6 may perform a query and provide the network address L of the optical label web server 5, which may be, for example, a url network link address, to the image capturing device 32, the image capturing device 34, and the image capturing device 36, respectively.
The user 31, the user 33, and the user 35 access the optical label web server 5 through the network address L using the image capturing apparatus 32, the image capturing apparatus 34, and the image capturing apparatus 36, respectively, and make a request for authenticating the optical label 37 to the optical label web server 5. The user 31, the user 33, and the user 35 may provide identification information obtained from the optical label 37 to the optical label network server 5 through the image capturing device 32, the image capturing device 34, and the image capturing device 36, respectively.
After receiving the request for identifying the optical label 23 from the user 31, the user 33, and the user 35, the optical label network server 5 queries the optical label corresponding to the identification information to generate three corresponding verification codes r1、r2、r3(e.g., in a random or pseudo-random manner), and assign an ANDEach identifying code r1、r2、 r3Associated transmission time t1、t2、t3And time increment Δ t1、Δt2、Δt3Thus constituting three triplets (r)1，t1，Δt1)、(r2，t2，Δt2)、(r3，t3，Δt3). Here, the transmission time t1、t2、t3With time increment Δ t1、Δt2、Δt3The sending time t and the time increment Δ t have the same meaning as described above, and thus are not described again. Transmission time t1、t2、t3For three different transmission instants, by a time increment Δ t1、Δt2、Δt3May or may not be identical, but it is necessary to have three time intervals t1，t1+Δt1]、[t2， t2+Δt2]、[t3，t3+Δt3]Do not overlap each other.
The optical label network server 5 will three groups (r)1，t1，Δt1) Sends it to the image acquisition device 32 to transmit the triplet (r)2，t2，Δt2) Sends the triplet (r) to the image acquisition device 343，t3，Δt3) To image capture device 36. In addition, the optical label web server 5 will three triplets (r)1，t1，Δt1)、(r2， t2，Δt2)、(r3，t3，Δt3) Is sent to the optical label corresponding to the identification information.
The optical label corresponding to the identification information receives three triplets (r)1，t1，Δt1)、(r2，t2，Δt2)、(r3，t3，Δt3) Then, in the time interval [ t ]1，t1+Δt1]、[t2，t2+Δt2]、[t3，t3+Δt3]Internal verification code r1、r2、r3Respectively presented thereon.
After receiving the respective triples, the image capturing device 32, the image capturing device 34, and the image capturing device 36 store the corresponding verification codes, and may respectively store the verification codes in the time interval [ t [ t ] ]1，t1+Δt1]、[t2， t2+Δt2]、[t3，t3+Δt3]The internally illuminated optical label 37 is image captured. The image capturing device 32, the image capturing device 34, and the image capturing device 36 select one or more frames labeled with the mark V among the captured frames of the image of the optical label 37, and extract the authentication information r from the one or more frames, respectively1’、r2’、r3'. It should be noted that each image capturing device may also capture an image of the optical label 37 in a time period outside its corresponding time interval to obtain other information presented by the optical label 37 in the time period. If the image capturing device captures the image frame containing the marker V of the optical label 37 in the period (the image frame containing the marker V is for other image capturing devices), it may simply be discarded.
If any one of the user 31, the user 33, and the user 35 fails to obtain the verification information within the corresponding time interval through the image capturing device (for example, no image frame containing the mark V is found), at this time, the user may consider that the optical label 37 does not receive the triplet from the optical label network server 5 (that is, the optical label corresponding to the identification information is not the optical label 37), and therefore, may determine that the optical label 37 is illegal or counterfeit.
If any of user 31, user 33, or user 35 obtains authentication information via the image capture device during a corresponding time interval, the authentication code received from optical label web server 5 may be compared to the authentication information obtained from optical label 37 (i.e., image capture device 32 compares r)1And r1' comparing r by the image acquisition device 342And r2' comparing r by image acquisition device 363And r3') if they match, the optical label 37 is considered legitimate, otherwise the optical label is considered legitimate37 are illegal or counterfeit. The user 31, the user 33, and the user 35 perform their authentication operations, respectively, and in a normal case, they obtain a consistent authentication result. If the time interval is found to have been exceeded during the verification process, the image capture device may prompt the user for a verification timeout, and the user may choose to reinitiate authentication of the optical label. Each image capturing device may transmit the authentication result to the optical label web server 5 or the third party agency server 6 after authenticating the optical label 37.
In one embodiment, the transmission time t1、t2、t3It may not be the time when the optical label network server 5 sends each triplet, but instead it may be replaced by specifying the time when the optical label corresponding to the identification information presents the verification code thereon or the starting time when the verification code can be presented.
In one embodiment, the optical label network server 5 may not specify the transmission time t1、t2、t3And time increment Δ t1、Δt2、Δt3But directly specifies the end times (which are different from each other) of the validity periods of the respective authentication codes. In this case, in order to avoid overlapping of the three time intervals, the optical label network server 5 may first transmit the earliest termination time and the verification code corresponding thereto to the optical label corresponding to the identification information and the corresponding image capturing device, and after the earliest termination time arrives, transmit the second earliest termination time and the verification code corresponding thereto to the optical label corresponding to the identification information and the corresponding other image capturing device, and so on. The optical label corresponding to the identification information may present any one of the verification codes immediately after receiving the verification code and the termination time thereof, or may present the verification code at any time before the termination time. Each image capturing device may continuously capture images of optical label 37 prior to the termination time of its receipt.
The active response anti-counterfeiting flow aiming at two or more simultaneous users can resist the replay attack of malicious users. A replay attack according to one embodiment is illustrated in fig. 4, where a first legitimate user 41 holds an image capturing device 42, a malicious user 45 holds an image capturing device 46, and a second legitimate user 47 holds an image capturing device 48. The malicious user 45 initiates an active response anti-counterfeiting process to the legitimate optical label 43 by using the image acquisition device 46, and forwards the received verification code to the illegitimate optical label 44 for playback, so as to attempt to deceive the second legitimate user 47. Since each user receives different verification codes in the active response anti-counterfeiting process, and the validity period of the verification codes is exceeded by forwarding, replaying and the like of the received verification codes, the malicious user 45 cannot cheat the second legitimate user 47.
An example of the use of the present invention in practical applications is as follows.
Example 1
The mall M issues information of the goods through the optical label L. Customer G wants to purchase goods through optical label L, but there is a doubt about the authenticity of optical label L. The customer G finds the website Http of the optical label web server 5 corresponding to the optical label L through the trusted server 6 via the mobile phone H: // www.abc.com. The customer G performs image acquisition on the optical label L through the mobile phone H and extracts ID information therefrom, and sends an authentication request for the ID information to the optical label network server 5 of the website. After receiving the authentication request, the optical label network server 5 generates a triplet (562587, t, 3) and sends it to the optical label L and the mobile phone H at the same time, where 562587 is a verification code, t is a sending time, and 3 represents three seconds. After receiving the triplet, the optical label L sends out an optical signal containing the authentication code 562587 within 3 seconds from the transmission time t. Upon receiving the triplet, the customer G stores the verification code 562587 and receives the optical signal of the optical label L, which is then parsed and the obtained verification information is compared to the stored verification code 562587. And if the two are found not matched, the optical label L is determined as a fake optical label.
Example 2
The mall M issues information of the goods through the optical label L. Customer A, customer B, and customer C want to purchase goods through optical label L, but customer A, customer B, and customer C have doubts about the authenticity of optical label L, each via cell phone PCustomer A、PCustomer B、PCustomer CFinding the website Http of the optical label network server 5 corresponding to the optical label L through the trusted server 6: // www.abc.com. Customer A, customer B and customer C pass through P respectivelyCustomer A、PCustomer B、PCustomer CThe optical label L is subjected to image acquisition and ID information is extracted therefrom, and an authentication request for the ID information is sent to the optical label web server 5 of the above-mentioned website. The optical label network server 5 generates three triplets after receiving three authentication requests:
(562587，14：20：35.345，0.3)，
(462782，14：20：36.345，0.3)，
(882584，14：20：37.345，0.3)，
and sends it to both optical labels L and PCustomer A、PCustomer B、PCustomer C. After receiving the triplet, the optical label L, in three time intervals 14: 20: 35.345 to 14: 20: 35.645, 14: 20: 36.345 to 14: 20: 36.645, 14: 20: 37.345 to 14: 20: 37.645, sequentially emitting optical signals containing verification codes 562587, 462782 and 882584. PCustomer A、PCustomer B、PCustomer CAfter receiving the respective triplets, the verification codes are stored respectively, and the optical signal of the optical label L is received in the corresponding time interval, and then analyzed, and the obtained verification information is compared with the stored verification codes. And if the two are found not matched, the optical label L is determined as a fake optical label.
Fig. 6 shows an optical label anti-counterfeiting process according to another embodiment of the invention. In contrast to the flow shown in fig. 5, the flow shown in fig. 6 is that the optical label network server 5 performs the authentication operation, and the image capturing device 22 is only used to forward the authentication information and does not perform the authentication operation any more.
Steps 601, 602, 603, 604, 605 in fig. 6 are similar to steps 501, 502, 503, 504, 505 in fig. 5, and are not repeated here.
Thereafter, the optical label network server 5 transmits the triplet (r, t, Δ t) to the optical label corresponding to the identification information (step 606). The optical label network server 5 no longer sends the triplet (r, t, Δ t) to the image capturing device 22, or alternatively the optical label network server 5 may only send (t, Δ t) to the image capturing device 22. r is the authentication code. t is a transmission time, which is a time when the optical label network server 5 transmits the triplet, and is also a start time of the validity period of the authentication code r. At is a time increment for determining, together with the transmission time t, the end time (t + at) of the validity period of the authentication code r. Thus, the time interval [ t, t + Δ t ] may be used as the validity period of the verification code r in which the verification code r is valid.
The optical label corresponding to the identification information presents the verification code r on the triplet (r, t, Δ t) after receiving it (step 607). Preferably, the optical label corresponding to the identification information presents the verification code r immediately after receiving the triplet (r, t, Δ t). In one embodiment, the optical label corresponding to the identification information may present the verification code r at any time in the time interval [ t, t + Δ t ]. The optical label corresponding to the identification information may present the verification code r by one display, or may present the verification code r by a plurality of displays. In the case of multiple displays, the user 21 may continuously capture multiple frames of images of the optical label 23 (which may include serial numbers, time stamps, etc. to avoid duplication, omission, etc. of image frames) through the image capture device 22 and obtain corresponding authentication information based on the multiple frames of images. When the verification code r is presented, the optical label corresponding to the identification information may construct the mark V in any identification manner to identify that the verification code r is currently displayed, but not other data. The optical label corresponding to the identification information may present the verification code r only once (as described above, each presentation of the verification code r may involve multiple displays of the optical label corresponding to the identification information), or may present the verification code r multiple times in a continuous manner or at intervals within the time interval [ t, t + Δ t ].
After user 21 makes a request to authenticate optical label 23 to optical label network server 5 (step 604), image capture of optical label 23 may continue (e.g., for at least a specified period of time) by image capture device 22. Alternatively, in the case where the optical tag network server 5 transmits (t, Δ t) to the image pickup device 22, the image pickup device 22 picks up an image of the optical tag 23 within the time interval [ t, t + Δ t ] after receiving (t, Δ t). Among the acquired images of the frames of the optical label 23, one or more frames marked with the mark V are selected, and the authentication information r' is extracted from the one or more frames (step 608).
The optical label web server 5 receives the authentication information r 'from the user's image capturing device 22 (step 609). If the optical label network server 5 fails to receive the verification information r 'from the image capturing device 22, for example, the image capturing device 22 notifies that the verification information r' cannot be obtained from the optical label 23 within the time interval [ t, t + Δ t ] (for example, no image frame containing the mark V is found), at this time, the optical label network server 5 may consider that the optical label 23 does not receive the triplet (r, t, Δ t) from the optical label network server 5, and thus, may determine that the optical label 23 is illegal or counterfeit.
The optical label network server 5 may compare the verification information r' with the verification code r (step 610), and if the two match, consider the optical label 23 to be authentic or legitimate (step 611), otherwise consider the optical label 23 to be counterfeit or illegitimate (step 612). In one embodiment, the two match each other means that they are the same. In other embodiments, matching does not require that the two be identical, so long as there is some predetermined relationship or association between the two. The optical label web server 5 may transmit the authentication result to the user after authenticating the optical label 23.
In one embodiment, the sending time t may not be the time when the optical label network server 5 sends the triplet, but instead, it may be replaced with a time t 'specifying the time at which the optical label corresponding to the identification information presents the verification code r or a starting time t' at which the verification code r can be presented. The optical tag may present the verification code r at the time t 'or at any time within the time interval [ t', t '+ Δ t ] after receiving the verification code r and the time t'.
In one embodiment, the optical label network server 5 may directly specify the end time of the validity period of the verification code r instead of specifying the transmission time t and the time increment Δ t, and transmit the verification code r and the end time to the optical label corresponding to the identification information. The optical label corresponding to the identification information may present the verification code r immediately after receiving the verification code r and the termination time, or may present the verification code r at any time before the termination time. The termination time may also be transmitted to image capture device 22 so that image capture device 22 may continue to capture images of optical label 23 prior to the termination time.
In one embodiment, the optical label network server 5 may not even specify the end time of the validity period of the authentication code r, but only send the authentication code r to the optical label corresponding to the identification information. The optical label corresponding to the identification information may be presented one or more times after receiving the verification code r. Image-capturing device 22 may perform continuous image capture of optical label 23 for at least a predetermined period of time after issuing a request to authenticate optical label 23 to optical label network server 5 (step 604).
In one embodiment, after the optical tag network server 5 performs one authentication on the optical tag 23, if the optical tag network server 5 receives another request for authenticating the optical tag 23 within a predetermined time period, the optical tag network server 5 may directly adopt the previous result of one authentication (i.e., it is not necessary to repeatedly authenticate the same optical tag within a short time), and may directly send the corresponding authentication result to the user who made the authentication request. The predetermined period of time may be set differently depending on the actual situation, security requirements, and the like.
The anti-counterfeiting method of the invention can be applied not only to the optical label shown in fig. 1A, but also to other optical labels (or light sources) capable of transmitting information as long as the information transmitted by the optical label can change with time. For example, the anti-counterfeiting method of the present invention can be applied to a light source (such as the device described in chinese patent publication CN 104168060A) that transmits information through different stripes based on the rolling shutter effect of CMOS. In addition, the anti-counterfeiting method of the present invention can also be applied to an array of optical labels (or light sources) as long as the information transmitted by the array can change over time.
In addition, the verification code displayed by the optical label in the anti-counterfeiting method of the invention can be completely presented in one-time display of the optical label (that is, the verification code can be contained in one frame of image of the optical label collected by the image collecting device), and can also be successively presented in multiple displays of the optical label. For example, for certain types of optical labels or arrays thereof, the amount of information that it delivers in each display may not be sufficient to cover the entire verification code, in which case the verification code may be presented sequentially in multiple displays (i.e., the verification code is delivered by successive multiple displays of the optical label). And the user can continuously collect the multi-frame images of the optical label through the image collecting device and obtain corresponding verification information based on the multi-frame images. In order to identify that the authentication code is currently displayed, but not other data, corresponding identification bits may also be included in the multi-frame image, or some frames may be selected as identification frames.
Reference in the specification to "various embodiments," "some embodiments," "one embodiment," or "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in various embodiments," "in some embodiments," "in one embodiment," or "in an embodiment," or the like, in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, a particular feature, structure, or characteristic illustrated or described in connection with one embodiment may be combined, in whole or in part, with a feature, structure, or characteristic of one or more other embodiments without limitation, as long as the combination is not logical or operational.
In the present application, for clarity of explanation, some illustrative operational steps are described in a certain order, but one skilled in the art will appreciate that each of these operational steps is not essential and some of them may be omitted or replaced by others. It is also not necessary that these operations be performed sequentially in the manner shown, but rather that some of these operations be performed in a different order, or in parallel, as desired, provided that the new implementation is not logical or functional. In addition, the information transmitted or received in the present invention can be appropriately encrypted according to actual needs. Accordingly, a component involved in the transmission or reception of encrypted information may have a corresponding encryption/decryption module.
Having thus described several aspects of at least one embodiment of this invention, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be within the spirit and scope of the invention.

Claims (9)

1. An anti-counterfeiting method for an optical label, comprising:
the first server receives an authentication request for an optical label to be authenticated and unique identification information of the optical label from an image acquisition device of a user;
the first server determines the position of the optical label corresponding to the identification information;
the first server randomly generates a verification code in response to the authentication request; and
the first server sends the verification code to the image acquisition equipment and the optical label corresponding to the identification information and indicates the optical label corresponding to the identification information to present the verification code in one frame or continuous multiple frames, so that the user can judge the authenticity of the optical label to be identified based on whether the information obtained when the image acquisition equipment acquires the image of the optical label to be identified is consistent with the verification code received by the image acquisition equipment;
the first server further specifies a sending time t and a time increment Δ t as the valid period of the verification code when the verification code is generated, and sends the valid period and the verification code to the image acquisition equipment and the optical label corresponding to the identification information at the same time, wherein the optical label corresponding to the identification information presents the verification code in the valid period, and the image acquisition equipment acquires the image of the optical label to be identified in the valid period.
2. The anti-counterfeiting method according to claim 1, wherein when the optical label to be authenticated is an optical label corresponding to the identification information, the user can acquire the verification code by image-capturing the optical label to be authenticated through the image-capturing device.
3. The anti-counterfeiting method according to claim 1,
the first server generates different verification codes with validity periods at different sending moments aiming at the authentication requests of different users aiming at the optical labels to be authenticated.
4. A server configured to perform the anti-counterfeiting method of any one of claims 1-3.
5. An anti-counterfeiting system for an optical label, comprising:
a first server configured to:
receiving an authentication request for an optical label to be authenticated and unique identification information of the optical label from an image capturing device of a user;
determining the position of the optical label corresponding to the identification information;
randomly generating a verification code in response to the authentication request; and
sending the verification code to the image acquisition equipment and the optical label corresponding to the identification information, and indicating the optical label corresponding to the identification information to present the verification code in one frame or continuous multiple frames, so that the user can judge the authenticity of the optical label to be identified based on whether the information obtained when the image acquisition equipment acquires the image of the optical label to be identified is consistent with the verification code received by the image acquisition equipment;
the first server further specifies a sending time t and a time increment Δ t as the valid period of the verification code when the verification code is generated, and sends the valid period and the verification code to the image acquisition equipment and the optical label corresponding to the identification information at the same time, wherein the optical label corresponding to the identification information presents the verification code in the valid period, and the image acquisition equipment acquires the image of the optical label to be identified in the valid period.
6. The anti-counterfeiting system according to claim 5, further comprising:
an optical label corresponding to the identification information, comprising a controller and a light source, the controller configured to:
after the optical label corresponding to the identification information receives the verification code from the first server, controlling the light source to present the verification code.
7. The anti-counterfeiting system according to claim 5,
the first server generates different verification codes with validity periods at different sending moments aiming at the authentication requests of different users aiming at the optical labels to be authenticated.
8. An anti-counterfeiting method for an optical label, comprising:
sending an authentication request for an optical label to be authenticated and unique identification information of the optical label from an image acquisition device of a user to a first server;
receiving, by the image capture device, a verification code from the first server, wherein the verification code is randomly generated by the first server in response to the authentication request, wherein the verification code is also sent by the first server to the optical label corresponding to the identification information for presentation of the optical label in one or more consecutive frames, wherein the position of the optical label corresponding to the identification information is determined by the first server; and
the image acquisition equipment judges the authenticity of the optical label to be identified based on whether the information obtained when the image acquisition is carried out on the optical label to be identified is consistent with the verification code received from the first server;
the method further comprises the step of receiving the validity period of the verification code from the first server through the image acquisition device, wherein the first server further specifies a sending time t and a time increment t as the validity period of the verification code when the verification code is generated, and sends the validity period and the verification code to the image acquisition device and an optical label corresponding to the identification information at the same time, the optical label corresponding to the identification information presents the verification code in the validity period, and the image acquisition device acquires an image of the optical label to be authenticated in the validity period to obtain the information.
9. An image acquisition device configured to implement the anti-counterfeiting method of claim 8.
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