CN111813426A - Fingerprint data processing method and device - Google Patents
Fingerprint data processing method and device Download PDFInfo
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- CN111813426A CN111813426A CN201910295839.5A CN201910295839A CN111813426A CN 111813426 A CN111813426 A CN 111813426A CN 201910295839 A CN201910295839 A CN 201910295839A CN 111813426 A CN111813426 A CN 111813426A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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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
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/70—Software maintenance or management
- G06F8/71—Version control; Configuration management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
Abstract
The disclosure relates to a fingerprint data processing method and device. The method comprises the following steps: judging whether the operating system of the client is upgraded to a specified version or not; and if so, copying the fingerprint template data from the first data partition to a second data partition, wherein the second data partition is a data storage area which can be accessed when fingerprint identification is carried out in the client. By means of the method and the system, the function of fingerprint identification of the client can be not affected by the client operating system, and even if the client operating system is degraded to the previous version, normal access of fingerprint template data can be guaranteed.
Description
Technical Field
The present disclosure relates to the field of application development technologies, and in particular, to a fingerprint data processing method and apparatus.
Background
At present, fingerprint identification is a relatively common identification mode in biometric identification, and therefore, many clients support a fingerprint identification function. By means of fingerprint identification, the verification of various functions such as startup verification, payment verification, login verification and the like can be completed. The fingerprint template data is data essential in a fingerprint identification process, the fingerprint template data may include stored fingerprint data of a plurality of legal users, and in the fingerprint identification process, when fingerprint data acquired by a client matches any fingerprint data in the fingerprint template data, a user corresponding to the acquired fingerprint data may be determined to be one of the legal users.
In the related art, the fingerprint template data is often stored in a preset position in the client, but in some cases, the client often cannot access the preset position for storing the fingerprint template data in the process of fingerprint identification, so that it is difficult to complete fingerprint identification at the client.
Therefore, there is a need in the related art for a fingerprint data processing method, so that a client can smoothly acquire the fingerprint template data during the fingerprint identification process.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a fingerprint data processing method and apparatus.
According to a first aspect of the embodiments of the present disclosure, there is provided a fingerprint data processing method, including:
judging whether the operating system of the client is upgraded to a specified version or not;
and if so, copying the fingerprint template data from the first data partition to a second data partition, wherein the second data partition is a data storage area which can be accessed when fingerprint identification is carried out in the client.
According to a second aspect of the embodiments of the present disclosure, there is provided a fingerprint data processing apparatus including:
the judging module is used for judging whether the operating system of the client is upgraded to a specified version;
and the data copying template is used for copying the fingerprint template data from the first data partition to a second data partition if the judgment result is yes, wherein the second data partition is a data storage area which can be accessed when fingerprint identification is carried out in the client.
According to a third aspect of the embodiments of the present disclosure, there is provided a fingerprint data processing apparatus including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the fingerprint data processing method.
According to a fourth aspect of embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium having instructions therein, which when executed by a processor, enable the processor to perform the fingerprint data processing method.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: according to the fingerprint data processing method provided by each embodiment of the disclosure, when it is detected that the operating system of the client is upgraded to the specified version, the fingerprint template data can be copied from the first data partition to the second data partition, where the second data partition is a data storage area accessible when fingerprint identification is performed in the client, under the condition that the fingerprint template data in the first data partition cannot be accessed after the operating system of the client is upgraded to the specified version. Therefore, the function of fingerprint identification of the client is not influenced by the client operating system, and normal access to the fingerprint template data can be ensured even if the client operating system is degraded to the previous version.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic diagram illustrating a scenario of a fingerprint data processing method according to an exemplary embodiment.
Fig. 2 is a flowchart illustrating a fingerprint data processing method according to an exemplary embodiment.
Fig. 3 is a flowchart illustrating a fingerprint data processing method according to an exemplary embodiment.
Fig. 4 is a block diagram illustrating a fingerprint data processing apparatus according to an exemplary embodiment.
FIG. 5 is a block diagram illustrating an apparatus in accordance with an example embodiment.
FIG. 6 is a block diagram illustrating an apparatus in accordance with an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
In order to facilitate those skilled in the art to understand the technical solutions provided in the embodiments of the present application, a technical environment for implementing the technical solutions is first described below.
For the previous version of Android 8.0 (Android 8.0 for short), it often takes a long time for the operating system to be upgraded (for example, from Android6.0 to Android 7.0). After a new version of the Android Open-Source Project (AOSP) is released by Google, it is also necessary for the SoC vendor to upgrade the Hardware Abstraction Layer (HAL), and after the OEM vendor upgrades the HAL and the system framework, the user can receive a push of an Over-the-Air Technology (OTA) upgrade package on the client. Even after the product leaves the factory, the operating system of the product at the low end can not be upgraded. To solve the above problem, Google proposes a Project tree Project in Android 8.0, in which the system framework and HAL may be designed separately. In Android 8.0, updating of the system framework can be implemented without rebuilding the HAL based on Hardware Interface Definition Language (HIDL). Through the separated design of the system frame and the HAL, the system frame can be directly upgraded when an Android system behind the Android 8.0 is upgraded without considering the change of the HAL layer, and therefore the time for the user equipment to obtain the OTA push of the system upgrade is shortened.
In Android 8.0 and later versions, the HAL may be built by the vendor or SOC manufacturer and stored in the vendor (vendor) data partition of the client, so that the system framework can be updated and replaced OTA in the vendor data partition without recompiling the HAL. However, the separation of the system framework and the HAL may result in a limitation of data access rights, such as for fingerprint template data required in the fingerprinting process, in the former version of Android 8.0, the fingerprint template data is stored in the system data partition, and in the former version of Android 8.0 and later, the storage path of the fingerprint template data is modified into the vendor data partition. Therefore, in the Android 8.0 and later versions, the fingerprint template data in the system data partition cannot be accessed, and further, after the client operating system is upgraded, a user cannot complete fingerprint verification.
Based on the above technical requirements, the fingerprint data processing method provided by the present disclosure may copy the fingerprint template data source from the system data partition to the vendor data partition when it is detected that the operating system of the client is upgraded to the specified version, so that the fingerprint template data can be accessed in the Android 8.0 and later versions.
The fingerprint data processing method according to the present disclosure will be described in detail below with reference to the accompanying drawings. Fig. 1 is a flowchart of a method of an embodiment of a fingerprint data processing method provided by the present disclosure. Although the present disclosure provides method steps as illustrated in the following examples or figures, more or fewer steps may be included in the method based on conventional or non-inventive efforts. In steps where no necessary causal relationship exists logically, the order of execution of the steps is not limited to that provided by the disclosed embodiments.
In particular, an embodiment of the fingerprint data processing method provided by the present disclosure is shown in fig. 1, and may include:
step 101, judging whether an operating system of a client is upgraded to a specified version;
in step 103, if the determination result is yes, the fingerprint template data is copied from the first data partition to a second data partition, where the second data partition is a data storage area accessible when the fingerprint identification is performed in the client.
The fingerprint data processing method provided by the present disclosure can be applied to any client having an operating system, including but not limited to an android operating system, iOS, windows, and the like. The client may include a variety of electronic devices such as a mobile smart phone, a computer (including a laptop computer, a desktop computer), a tablet electronic device, a Personal Digital Assistant (PDA), or a smart wearable device.
In an embodiment of the present disclosure, the client may detect whether the operating system is upgraded to a specified version, and in an embodiment, the specified version may include an 8.0 version of an android operating system. Of course, the specified version may not be limited to the 8.0 version of the android operating system, and any application scenario in which the client cannot access the fingerprint template data in the old version due to the version upgrade of the operating system may use the fingerprint data processing method provided by the embodiment of the present disclosure. And if the judgment result is that the operating system of the client is upgraded to the specified version, copying the fingerprint template data from the first data partition to a second data partition, wherein the second data partition is a data storage area which can be accessed when fingerprint identification is carried out in the client.
In one example, the first data partition may comprise a system partition in an android operating system and the second data partition may comprise a vendor data partition. In Android 8.0 and later versions, the separation of the system framework and HAL results in the separation of the data access permissions of their respective corresponding data partitions (i.e., system data partition and vendor data partition). Based on the method, the fingerprint template data stored in the system data partition can be copied to the vendor data partition, so that the historical fingerprint template data stored in the client can be normally accessed in the process of fingerprint identification of the client.
In the embodiment of the present disclosure, if the determination result is that the operating system of the client is upgraded to the specified version, the fingerprint template data may be copied from the first data partition to the second data partition when the fingerprint template data needs to be loaded. That is, in the event that an operating system upgrade of the client is detected to a specified version, and the fingerprint template data needs to be loaded, the fingerprint template data is copied from the first data partition into the second data partition. Of course, in other embodiments, the fingerprint template data may also be copied from the first data partition to the second data partition at any time after detecting that the operating system of the client is upgraded to the specified version and before the fingerprint template data is loaded, and the present disclosure does not limit the time at which the fingerprint template data is copied.
In the embodiment of the present disclosure, as shown in fig. 2, in the process of copying the fingerprint template data from the first data partition to the second data partition, the copying may include:
in step 201, determining a first storage path of fingerprint template data in the first data partition;
in step 203, a second storage path is created in the second data partition;
in step 205, the fingerprint template data in the first storage path is copied to the second storage path.
In the embodiment of the present disclosure, in the process of copying the fingerprint template data from the first data partition to the second data partition, a first storage path of the fingerprint template data in the first data partition may be determined first. In one example, the storage path of the fingerprint template data in the system data partition can be determined to be/data/system/$ userId/fpdata according to the definition of the android operating system. A second storage path may then be created in the second data partition. In the above example, a second storage path/data/vector _ de/$ userId/fpdata may be created in the vector data partition for storing the fingerprint template data. The second storage path may be a storage path defined by the updated operating system, or may be a storage path arbitrarily created by the client, which is not limited in this disclosure. Finally, the fingerprint template data in the first storage path may be copied to the second storage path.
In the embodiment of the present disclosure, when the fingerprint template data in the first data partition is updated, the fingerprint template data in the second data partition may also be updated synchronously. Specifically, as shown in fig. 3, the method may include:
in step 301, it is determined whether the fingerprint template data in the first data partition is updated;
in step 303, if the determination result is yes, the data of the updated fingerprint template data in the first data partition is synchronously updated to the fingerprint template data in the second data partition.
In an example, during the use of the Android 8.0 and later versions, if a client performs an update operation on the fingerprint template data, the update operation may include, for example, deletion, addition, and the like. Based on this, whether the fingerprint template data in the first data partition is updated or not can be judged, and if the judgment result is that the fingerprint template data in the first data partition is updated, the updated data in the fingerprint template data in the first data partition is synchronously updated to the fingerprint template data in the second data partition.
According to the fingerprint data processing method provided by each embodiment of the disclosure, when it is detected that the operating system of the client is upgraded to the specified version, the fingerprint template data can be copied from the first data partition to the second data partition, where the second data partition is a data storage area accessible when fingerprint identification is performed in the client, under the condition that the fingerprint template data in the first data partition cannot be accessed after the operating system of the client is upgraded to the specified version. Therefore, the function of fingerprint identification of the client is not influenced by the client operating system, namely the client operating system is degraded to the previous version, and normal access of fingerprint template data can be ensured.
Another aspect of the present disclosure also provides a fingerprint data processing apparatus, and fig. 4 is a block diagram illustrating a fingerprint data processing apparatus 400 according to an exemplary embodiment. Referring to fig. 4, the apparatus includes a determination module 401, a data copy template 403, wherein,
a judging module 401, configured to judge whether an operating system of the client is upgraded to a specified version;
and the data copying template 403 is configured to copy, if the determination result is yes, the fingerprint template data from the first data partition to a second data partition, where the second data partition is a data storage area accessible when the fingerprint identification is performed in the client.
Optionally, in an embodiment of the present disclosure, the data replication template includes:
and the data copy sub-template is used for copying the fingerprint template data from the first data partition to the second data partition when the fingerprint template data needs to be loaded if the judgment result is yes.
Optionally, in an embodiment of the present disclosure, the data replication template includes:
a storage path determination sub-template for determining a first storage path of the fingerprint template data in the first data partition;
a path creation sub-template for creating a second storage path in the second data partition;
and the data copy sub-template is used for copying the fingerprint template data in the first storage path into the second storage path.
Optionally, in an embodiment of the present disclosure, the apparatus further includes:
the updating judgment template is used for judging whether the fingerprint template data in the first data partition is updated or not;
and the synchronous updating template is used for synchronously updating the data of the updated fingerprint template data in the first data partition into the fingerprint template data in the second data partition if the judgment result is yes.
Optionally, in an embodiment of the present disclosure, the specified version includes an android operating system 8.0 version.
Fig. 5 is a block diagram illustrating an apparatus 700 for resource allocation indication in accordance with an example embodiment. For example, the apparatus 700 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 5, apparatus 700 may include one or more of the following components: a processing component 702, a memory 704, a power component 706, a multimedia component 708, an audio component 710, an input/output (I/O) interface 712, a sensor component 714, and a communication component 716.
The processing component 702 generally controls overall operation of the device 700, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 702 may include one or more processors 720 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 702 may include one or more modules that facilitate interaction between the processing component 702 and other components. For example, the processing component 702 may include a multimedia module to facilitate interaction between the multimedia component 708 and the processing component 702.
The memory 704 is configured to store various types of data to support operations at the apparatus 700. Examples of such data include instructions for any application or method operating on device 700, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 704 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power supply component 706 provides power to the various components of the device 700. The power components 706 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 700.
The multimedia component 708 includes a screen that provides an output interface between the device 700 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch-sensitive display to transmit input signals from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 708 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may transmit external multimedia data when the device 700 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 710 is configured to output and/or input audio signals. For example, audio component 710 includes a Microphone (MIC) configured to transmit external audio signals when apparatus 700 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The transmitted audio signal may further be stored in the memory 704 or transmitted via the communication component 716. In some embodiments, audio component 710 also includes a speaker for outputting audio signals.
The I/O interface 712 provides an interface between the processing component 702 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 714 includes one or more sensors for providing status assessment of various aspects of the apparatus 700. For example, sensor assembly 714 may detect an open/closed state of device 700, the relative positioning of components, such as a display and keypad of device 700, sensor assembly 714 may also detect a change in position of device 700 or a component of device 700, the presence or absence of user contact with device 700, orientation or acceleration/deceleration of device 700, and a change in temperature of device 700. The sensor assembly 714 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 714 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 714 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 716 is configured to facilitate wired or wireless communication between the apparatus 700 and other devices. The apparatus 700 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 716 transmits the broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 716 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 704 comprising instructions, executable by the processor 720 of the device 700 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Fig. 6 is a block diagram illustrating an apparatus 800 for information processing according to an example embodiment. For example, the apparatus 800 may be provided as a server. Referring to FIG. 6, the apparatus 800 includes a processing component 822, which further includes one or more processors, and memory resources, represented by memory 832, for storing instructions, such as applications, that are executable by the processing component 822. The application programs stored in memory 832 may include one or more modules that each correspond to a set of instructions. Further, the processing component 822 is configured to execute instructions to perform a method as described in any of the embodiments above.
The device 800 may also include a power component 826 configured to perform power management of the device 800, a wired or wireless network interface 850 configured to connect the device 800 to a network, and an input/output (I/O) interface 858. The apparatus 800 may operate based on an operating system stored in the memory 832, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.
In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 832 comprising instructions, executable by the processing component 822 of the apparatus 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
1. A fingerprint data processing method, comprising:
judging whether the operating system of the client is upgraded to a specified version or not;
and if so, copying the fingerprint template data from the first data partition to a second data partition, wherein the second data partition is a data storage area which can be accessed when fingerprint identification is carried out in the client.
2. The fingerprint data processing method of claim 1, wherein the copying the fingerprint template data from the first data partition to the second data partition if the determination is yes comprises:
and if so, copying the fingerprint template data from the first data partition to the second data partition when the fingerprint template data needs to be loaded.
3. The fingerprint data processing method of claim 1 or 2, wherein the copying the fingerprint template data from the first data partition to the second data partition comprises:
determining a first storage path of fingerprint template data in the first data partition;
creating a second storage path in a second data partition;
and copying the fingerprint template data in the first storage path into the second storage path.
4. The fingerprint data processing method of claim 1, wherein the method further comprises:
judging whether the fingerprint template data in the first data partition is updated or not;
and if so, synchronously updating the data updated by the fingerprint template data in the first data partition into the fingerprint template data in the second data partition.
5. The fingerprint data processing method of any one of claims 1 to 4, wherein the specified version comprises an android operating system 8.0 version.
6. A fingerprint data processing apparatus, comprising:
the judging module is used for judging whether the operating system of the client is upgraded to a specified version;
and the data copying template is used for copying the fingerprint template data from the first data partition to a second data partition if the judgment result is yes, wherein the second data partition is a data storage area which can be accessed when fingerprint identification is carried out in the client.
7. The fingerprint data processing apparatus of claim 6, wherein the data replication template comprises:
and the data copy sub-template is used for copying the fingerprint template data from the first data partition to the second data partition when the fingerprint template data needs to be loaded if the judgment result is yes.
8. The fingerprint data processing apparatus of claim 6 or 7, wherein the data replication template comprises:
a storage path determination sub-template for determining a first storage path of the fingerprint template data in the first data partition;
a path creation sub-template for creating a second storage path in the second data partition;
and the data copy sub-template is used for copying the fingerprint template data in the first storage path into the second storage path.
9. The fingerprint data processing device of claim 6, wherein the device further comprises:
the updating judgment template is used for judging whether the fingerprint template data in the first data partition is updated or not;
and the synchronous updating template is used for synchronously updating the data of the updated fingerprint template data in the first data partition into the fingerprint template data in the second data partition if the judgment result is yes.
10. The fingerprint data processing apparatus of any one of claims 6 to 9, wherein the specified version comprises an android operating system 8.0 version.
11. A fingerprint data processing apparatus, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the method of any one of claims 1-5.
12. A non-transitory computer readable storage medium having instructions therein, which when executed by a processor, enable the processor to perform the method of any one of claims 1-5.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113329107A (en) * | 2021-08-03 | 2021-08-31 | 北京顶象技术有限公司 | Method and device for coping with influence of operating system change on equipment fingerprint calculation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113329107A (en) * | 2021-08-03 | 2021-08-31 | 北京顶象技术有限公司 | Method and device for coping with influence of operating system change on equipment fingerprint calculation |
| CN113329107B (en) * | 2021-08-03 | 2021-11-09 | 北京顶象技术有限公司 | Method and device for coping with influence of operating system change on equipment fingerprint calculation |
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