CN112000853B - Method for generating/feeding back unique identifier of equipment, medium, client and server - Google Patents
Method for generating/feeding back unique identifier of equipment, medium, client and server Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000004364 calculation method Methods 0.000 claims abstract description 17
- 238000004590 computer program Methods 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004891 communication Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000013475 authorization Methods 0.000 description 4
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/903—Querying
- G06F16/90335—Query processing
- G06F16/90344—Query processing by using string matching techniques
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/107—License processing; Key processing
- G06F21/1078—Logging; Metering
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/44—Program or device authentication
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Abstract
The invention provides a method for generating/feeding back a unique identifier of a device, a medium, a client and a server, wherein the method for generating the unique identifier of the device comprises the following steps: generating a device message digest value according to the device identification information of the client, converting the device message digest value into character string data, and generating an attribute message digest value according to the attribute information of the client; transmitting the character string data and the attribute message abstract value to a server; and when the equipment is successfully matched, receiving the unique equipment identifier fed back by the server. The invention provides a method for generating unique identification according to matching and weight calculation of various device information, which can accurately identify the unique identification of android devices, can effectively identify the phenomenon of multiple accounts of various same devices and ensures that various marketing activities are normally carried out.
Description
Technical Field
The invention belongs to the technical field of network technology and security, relates to a method for generating a unique identifier of equipment, and in particular relates to a method for generating/feeding back the unique identifier of the equipment, a medium, a client and a server.
Background
In the prior art, in order to distinguish that the same account number can only log in the same device, that is, the same account number is not allowed to log in two devices, the preferential measures of the consumption platform such as security or shopping are mainly to identify the user by using the device.
However, at present, on the android client side, the unique device identifier is an important means for user identity authentication, and the traditional unique device identifier generation scheme excessively depends on device rights and cannot be normally generated under the condition that a user is not authorized.
Therefore, how to provide a method, medium, client and server for generating/feeding back a device unique identifier, so as to solve the defect that the device unique identifier with uniqueness, continuity and stability cannot be generated without depending on active authorization of a user in the prior art, and become a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above drawbacks of the prior art, the present invention aims to provide a method, a medium, a client and a server for generating/feeding back a unique device identifier, which are used for solving the problem that the unique device identifier with uniqueness, continuity and stability cannot be generated without depending on active authorization of a user in the prior art.
To achieve the above and other related objects, an aspect of the present invention provides a method for generating a device unique identifier, which is applied to a client, where the method for generating the device unique identifier includes: generating a device message digest value according to the device identification information of the client, converting the device message digest value into character string data, and generating an attribute message digest value according to the attribute information of the client; transmitting the character string data and the attribute message abstract value to a server; and when the equipment is successfully matched, receiving the unique equipment identifier fed back by the server.
In one embodiment of the present invention, the step of generating the device message digest value according to the device identification information of the client includes: and superposing the equipment identity identification code and the equipment model of the client, and performing abstract calculation on the superposed information to generate the equipment message abstract value.
In an embodiment of the present invention, the step of generating the attribute message digest value according to the attribute information of the client includes: and taking the Bluetooth physical address, the wifi physical address, the system application installation time, the current application installation time, the system file catalog time stamp, the equipment model, the screen resolution and the hardware serial number of the client as abstract calculation objects, respectively carrying out abstract calculation on the abstract calculation objects, and generating the attribute message abstract value.
Another aspect of the invention provides a medium having stored thereon a computer program which, when executed by a processor, implements a method of generating a unique identifier for a device as described.
A further aspect of the present invention provides a client, including: a processor and a memory; the memory is used for storing a computer program, and the processor is used for executing the computer program stored in the memory, so that the client executes the method for generating the unique identifier of the equipment.
The invention also provides a feedback method of the unique identifier of the equipment, which is applied to the server, and the feedback method of the unique identifier of the equipment comprises the following steps: receiving character string data and attribute message abstract values sent by a client; wherein, the character string data is data generated by generating a device message digest value according to the device identification information of the client and converting the device message digest value; the attribute message digest value is a digest value generated according to attribute information of the client; matching the character string data and the attribute message digest value with the existing character string data and attribute message digest value, and generating a matching result; judging whether the equipment is successfully matched according to the matching result; and feeding the character string data back to the client as the unique identifier of the equipment when the matching is successful.
In one embodiment of the present invention, the step of matching the string data and the attribute message digest value with existing string data and attribute message digest values includes: judging whether the character string data exists in the existing character string data; if yes, matching the attribute message digest value; if not, the old equipment is tampered and the new equipment is identified.
In one embodiment of the present invention, the step of matching the attribute message digest value includes: judging whether the attribute message digest value is the same as the existing attribute message digest value; if yes, judging that the equipment is successfully matched; if not, the attribute message abstract values of different categories are endowed with corresponding weight values, and the weight values of a plurality of attribute message abstract values which are successfully matched are accumulated to determine weight value scores; when the weight score exceeds a preset threshold, judging that the equipment is successfully matched; and when the weight value score does not exceed a preset threshold value, judging that the equipment matching fails.
In a further aspect the invention provides a medium having stored thereon a computer program which, when executed by a processor, implements a method of feedback of a unique identification of a device as described.
In a final aspect, the present invention provides a server, including: a processor and a memory; the memory is used for storing a computer program, and the processor is used for executing the computer program stored in the memory, so that the server side executes the feedback method of the unique identifier of the equipment.
As described above, the method, medium, client and server for generating/feeding back the unique identifier of the device have the following beneficial effects:
The method and the device can generate the unique identifier of the equipment without depending on active authorization of the user, and have uniqueness, continuity and stability. The unique identification of the equipment is generated in a one-to-one correspondence manner in all the equipment, the unique identification generated by the same equipment for many times is identical in continuity, and the reliability indicates that the generated unique identification of the equipment has tamper resistance. Meanwhile, the requirement on privacy protection of users is met, and the behavior of the unique identification of the malicious tampering device is identified. Therefore, the phenomenon of multiple accounts of various similar devices can be effectively identified, and various marketing activities are ensured to be normally carried out.
Drawings
FIG. 1 is a schematic flow chart of a method for generating a unique device identifier according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a structural connection of a client according to an embodiment of the invention.
Fig. 3 is a schematic flow chart of a feedback method for device unique identification according to the present invention in an embodiment.
Fig. 4 is a schematic structural connection diagram of a server according to an embodiment of the invention.
Fig. 5 is a schematic diagram illustrating interaction between a client and a server according to an embodiment of the invention.
Description of element reference numerals
2. Client terminal
4. Service end
41. Processor and method for controlling the same
42. Memory device
43. Communication interface
44. System bus
S11 to S13 steps
S31 to S33 steps
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
The method for generating/feeding back the unique identifier of the equipment provided by the invention is used for generating the unique identifier according to the matching and weight calculation of various pieces of equipment information, can accurately perform the unique identifier on the android equipment, can effectively identify the phenomenon of multiple accounts of various pieces of identical equipment, and ensures that various marketing activities are normally performed.
The following will explain in detail the principle and implementation of a method, medium, client and server for generating/feeding back a unique identifier of a device according to this embodiment with reference to fig. 1 to 5, so that those skilled in the art can understand the method, medium, client and server for generating/feeding back a unique identifier of a device according to this embodiment without creative effort.
Referring to fig. 1, a schematic flow chart of a method for generating a unique identifier for a device according to the present invention is shown in an embodiment. As shown in fig. 1, the method for generating the unique identifier of the device is applied to the client, and specifically includes the following steps:
S11, generating a device message digest value according to the device identification information of the client, converting the device message digest value into character string data, and generating an attribute message digest value according to the attribute information of the client.
In this embodiment, the equipment identity identifier of the client and the equipment model are superimposed, and the superimposed information is subjected to summary calculation to generate the equipment message summary value.
Specifically, the client acquires the application android androidID and the device model, performs a sha256 operation on the (androidID +device model), and converts the result after the sha256 into a 16-system character string.
It should be noted that, sha256 is only one embodiment of the summary calculation of the present invention, and other summary calculation algorithms such as sha-224, sha-256, sha-384, sha-512/224, sha-512, etc. are also within the scope of the present invention.
In this embodiment, the bluetooth physical address, wifi physical address, system application installation time, current application installation time, system file directory timestamp, device model, screen resolution, and hardware serial number of the client are taken as summary calculation objects, and the summary calculation objects are respectively subjected to summary calculation to generate the attribute message summary value.
Specifically, a bluetooth MAC (MEDIA ACCESS Control Address, media access Control Address or physical Address), a wifi MAC, a sha256 value of a system application installation time, a sha256 value of a current application installation time, a sha256 value of a system file directory timestamp, a device model, a screen resolution, and a sha256 value of a hardware serial number of the device are obtained, and the data of the 8 fields are sent to a server together with the generated 16-system character string.
It should be noted that, all or at least one selected from the bluetooth physical address, wifi physical address, system application installation time, current application installation time, system file directory timestamp, device model, screen resolution, and hardware serial number of the client is only one embodiment of the present invention, and other information and information combinations that can identify the device attribute are also within the scope of the present invention.
And S12, the character string data and the attribute message digest value are sent to a server.
And S13, receiving the unique identification of the equipment fed back by the server when the equipment is successfully matched.
After S13, the method for generating a device unique identifier further includes: the client receives the unique equipment identifier returned by the server and caches the unique equipment identifier to the local file system for subsequent calling.
The protection scope of the method for generating the unique identifier of the device is not limited to the execution sequence of the steps listed in the embodiment, and all the schemes implemented by adding or removing steps and replacing steps according to the principles of the invention in the prior art are included in the protection scope of the invention.
Referring to fig. 2, a schematic diagram of a structural connection of a client according to an embodiment of the invention is shown. As shown in fig. 2, the client according to the present invention includes: a processor and a memory.
The memory is used for storing a computer program, and the processor is used for executing the computer program stored in the memory, so that the client executes the method for generating the unique identifier of the equipment.
Referring to fig. 3, a schematic flow chart of a feedback method for unique identification of a device according to the present invention is shown in an embodiment. As shown in fig. 3, the feedback method of the unique identifier of the device is applied to the server, and specifically includes the following steps:
S31, receiving character string data and attribute message abstract values sent by a client; wherein, the character string data is data generated by generating a device message digest value according to the device identification information of the client and converting the device message digest value; the attribute message digest value is a digest value generated from attribute information of the client.
S32, matching the character string data and the attribute message digest value with the existing character string data and attribute message digest value, and generating a matching result.
In this embodiment, whether the character string data exists in the existing character string data is judged; if yes, matching the attribute message digest value; if not, the old equipment is tampered and the new equipment is identified.
Specifically, the server receives a 16-system character string and 8 field data sent by the client, performs database matching on the 16-system character string, if the character string data exist in the database, the 16-system character string is the unique equipment identifier of the current equipment, and returns the unique equipment identifier to the client again, namely the 16-system character string is the unique identifier for verifying correctness; if the character data does not exist in the database, the 16-system character string is the unique identification for verifying the abnormality. The reason for the anomaly may be a 16-ary string of the new android device, which is not stored in advance, or may be a 16-ary string of a device that has been tampered with maliciously.
Further, when the verification based on the character string data is successful, the step of matching the attribute message digest value includes:
(1) And judging whether the attribute message digest value is the same as the existing attribute message digest value.
(2) If yes, judging that the equipment is successfully matched; if not, the attribute message abstract values of different categories are endowed with corresponding weight values, and the weight values of a plurality of attribute message abstract values successfully matched are accumulated to determine a weight value score.
(3) When the weight score exceeds a preset threshold, judging that the equipment is successfully matched; and when the weight value score does not exceed a preset threshold value, judging that the equipment matching fails.
Specifically, the weights of the acquired 8 field data of the client are respectively: the weight of the sha256 value of the Bluetooth MAC of the device is 10, the weight of the sha256 value of the wifi MAC of the device is 10, the weight of the sha256 value of the application installation time of the device system is 20, the weight of the sha256 value of the current application installation time is 20, the weight of the sha256 value of the system file directory timestamp is 10, the weight of the sha256 value of the device model is 10, the weight of the sha256 value of the screen resolution is 10, and the weight of the sha256 value of the hardware serial number is 10. And respectively matching the fields in the database, accumulating the weight values corresponding to the successfully matched fields, if the accumulated weight value is greater than 50 after the matching of one piece of data in the database is finished, judging that the piece of data in the database is the same device as the current device, and returning a unique device identifier corresponding to the piece of data in the database, namely a 16-system character string, to the client.
Furthermore, when the verification based on the character string data fails, the old equipment is tampered and the new equipment is identified through the step of matching the attribute message digest value, which specifically comprises the following steps:
(1) And judging whether the attribute message digest value is the same as the existing attribute message digest value.
(2) If yes, judging that the old equipment is tampered; if not, the attribute message abstract values of different categories are endowed with corresponding weight values, and the weight values of a plurality of attribute message abstract values successfully matched are accumulated to determine a weight value score.
(3) When the weight score exceeds a preset threshold, judging that the old equipment is tampered; and when the weight value score does not exceed the preset threshold value, judging that the device is a new device which does not store information.
S33, judging whether the equipment is successfully matched according to the matching result; and feeding the character string data back to the client as the unique identifier of the equipment when the matching is successful.
In a specific embodiment, for a 16-ary character string, field data sent by a device together with the 16-ary character string is matched with field data pre-stored in a database in a one-to-one correspondence manner, and if the successfully matched field includes: the accumulated weight value is: and if the data accumulation weight value 60 is greater than 50, determining that the data set in the database is the same device as the current device, and returning the unique identifier of the device corresponding to the data in the database to the client.
In another embodiment, for a 16-ary character string, if the 16-ary character string sent by the device is not found, the field data sent by the client device is continuously matched with the field data pre-stored in the database in a one-to-one correspondence manner. (1) if the matching is successful, the fields include: the accumulated weight value is: 10+20+20+10=60, if the data accumulation weight 60 is greater than 50, it is determined that the data set in the database is the same device as the current device, and the 16-ary character string is inconsistent because of a change caused by tampering or other factors, so that the device corresponding to the data in the database is returned to the client terminal with a unique identifier. (2) if the matching is successful, the fields include: the equipment system applies the sha256 value of the installation time, and the accumulated weight value is as follows: 20, if the data accumulation weight value 20 is smaller than 50, determining that the data set of the device does not exist in the database, and the client is a new device, and storing the character string data and the field data of the new device so as to perform verification of unique identification on the device in the later period.
The protection scope of the feedback method of the unique identifier of the device is not limited to the execution sequence of the steps listed in the embodiment, and all the schemes of step increase and decrease and step replacement in the prior art according to the principles of the invention are included in the protection scope of the invention.
The present embodiment provides a computer storage medium having stored thereon a computer program which, when executed by a processor, implements a method of generating the device unique identification or a method of feeding back the device unique identification.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by computer program related hardware. The aforementioned computer program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned computer-readable storage medium includes: various computer storage media such as ROM, RAM, magnetic or optical disks may store program code.
Referring to fig. 4, a schematic structural connection diagram of a server according to an embodiment of the invention is shown. As shown in fig. 4, this embodiment provides a server 4, where the server 4 includes: a processor 41, a memory 42, a communication interface 43, or/and a system bus 44; the memory 42 and the communication interface 43 are connected to the processor 41 via a system bus 44 and perform communication with each other, the memory 42 is used for storing a computer program, the communication interface 43 is used for communicating with other devices, and the processor 41 is used for running the computer program to enable the server 4 to execute the steps of the feedback method of the unique identification of the device.
The system bus 44 mentioned above may be a peripheral component interconnect standard (PERIPHERAL COMPONENTINTERCONNECT, PCI) bus or an extended industry standard architecture (ExtendedIndustryStandardArchitecture, EISA) bus, or the like. The system bus may be classified into an address bus, a data bus, a control bus, and the like. The communication interface 43 is used to enable communication between the database access device and other devices such as clients, read-write libraries and read-only libraries. The memory 42 may comprise Random Access Memory (RAM) or may further comprise non-volatile memory (non-volatilememory), such as at least one disk memory.
The processor 41 may be a general-purpose processor, including a Central Processing Unit (CPU), a network processor (NetworkProcessor NP), and the like; but also digital signal processors (DigitalSignalProcessing, abbreviated as DSP), application specific integrated circuits (AlicationSpecificIntegratedCircuit, abbreviated as ASIC), field programmable gate arrays (FieldProgrammableGateArray, abbreviated as FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
Referring to fig. 5, an interaction diagram of a client and a server according to an embodiment of the invention is shown. As shown in fig. 5, the client 2 sends the character string data and the client attribute information to the server 4, the server 4 performs weight calculation on the corresponding client attribute information according to the matched character string data, when the judgment of the weight calculation result exceeds the weight threshold, the character string data is fed back to the client 2 as the unique device identifier, and the client 2 caches the unique device identifier in the local file system.
For example, in a specific application scenario, a certain shopping platform sends coupons with 100-20 yuan reduced, and each device is limited to be only allowed to be sent once on the basis of a user account, so that each device can be accurately judged through the unique identification of the device after the method is adopted, and the malicious application phenomenon of multiple accounts of the same device is effectively avoided.
In summary, the method, medium, client and server for generating/feeding back the unique device identifier can generate the unique device identifier without depending on active authorization of the user, and have uniqueness, continuity and stability. Meanwhile, the requirement on privacy protection of users is met, and the behavior of the unique identification of the malicious tampering device is identified. Therefore, the phenomenon of multiple accounts of various similar devices can be effectively identified, and various marketing activities are ensured to be normally carried out. The invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (8)
1. The method for generating the unique device identifier is characterized by being applied to a client, and comprises the following steps:
Generating a device message digest value according to the device identification information of the client, converting the device message digest value into character string data, and generating an attribute message digest value according to the attribute information of the client;
the character string data and the attribute message abstract value are sent to a server side, so that the server side judges whether the character string data exists in the existing character string data or not; if the character string data exist, matching the attribute message abstract value; when the attribute message abstract value of the client is successfully matched, receiving the unique identifier of the equipment fed back by the server; if the character string data does not exist, the old equipment is tampered and the new equipment is identified by matching the attribute message digest values, if the matching is successful, the old equipment is judged to be tampered, if the matching is failed, the attribute message digest values of different categories are given corresponding weight values, and the weight values of a plurality of attribute message digest values which are successfully matched are accumulated to determine a weight value score; when the weight score exceeds a preset threshold, judging that the old equipment is tampered; and when the weight value score does not exceed the preset threshold value, judging that the device is a new device which does not store information.
2. The method of generating a device unique identifier according to claim 1, wherein the step of generating a device message digest value from the device identification information of the client comprises:
and superposing the equipment identity identification code and the equipment model of the client, and performing abstract calculation on the superposed information to generate the equipment message abstract value.
3. The method of generating a unique device identifier according to claim 1, wherein the step of generating an attribute message digest value from the attribute information of the client comprises:
and taking the Bluetooth physical address, the wifi physical address, the system application installation time, the current application installation time, the system file catalog time stamp, the equipment model, the screen resolution and the hardware serial number of the client as abstract calculation objects, respectively carrying out abstract calculation on the abstract calculation objects, and generating the attribute message abstract value.
4. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements a method of generating a device unique identifier according to any one of claims 1 to 3.
5. A client, comprising: a processor and a memory;
The memory is used for storing a computer program, and the processor is used for executing the computer program stored in the memory, so that the client performs the method for generating the device unique identifier according to any one of claims 1 to 3.
6. The feedback method of the unique equipment identifier is characterized by being applied to a server, and comprises the following steps:
Receiving character string data and attribute message abstract values sent by a client; wherein, the character string data is data generated by generating a device message digest value according to the device identification information of the client and converting the device message digest value; the attribute message digest value is a digest value generated according to attribute information of the client;
Matching the character string data and the attribute message digest value with the existing character string data and attribute message digest value, and generating a matching result; comprising the following steps: judging whether the character string data exists in the existing character string data; if the character string data exist, matching the attribute message abstract value, and feeding back the character string data to the client as a unique identifier of the equipment when the matching is successful; if the character string data does not exist, the old equipment is tampered and the new equipment is identified by matching the attribute message digest values, if the matching is successful, the old equipment is judged to be tampered, if the matching is failed, the attribute message digest values of different categories are given corresponding weight values, and the weight values of a plurality of attribute message digest values which are successfully matched are accumulated to determine a weight value score; when the weight score exceeds a preset threshold, judging that the old equipment is tampered; and when the weight value score does not exceed the preset threshold value, judging that the device is a new device which does not store information.
7. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program, when executed by a processor, implements a feedback method for a unique identification of a device according to claim 6.
8. A server, comprising: a processor and a memory;
the memory is used for storing a computer program, and the processor is used for executing the computer program stored in the memory, so that the service end executes the feedback method of the unique identification of the device according to claim 6.
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| CN112995355B (en) * | 2021-03-02 | 2023-04-25 | 上海星融汽车科技有限公司 | Method and system for generating unique equipment identification code and electronic equipment |
| CN113609510B (en) * | 2021-09-28 | 2021-12-24 | 武汉泰乐奇信息科技有限公司 | Big data encryption transmission method and device based on distributed storage |
| CN115250263A (en) * | 2022-07-21 | 2022-10-28 | 中国银行股份有限公司 | Equipment identification method and device |
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