WO2023045509A1 - 指纹访问方法、装置、设备及存储介质 - Google Patents

指纹访问方法、装置、设备及存储介质 Download PDF

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Publication number
WO2023045509A1
WO2023045509A1 PCT/CN2022/105304 CN2022105304W WO2023045509A1 WO 2023045509 A1 WO2023045509 A1 WO 2023045509A1 CN 2022105304 W CN2022105304 W CN 2022105304W WO 2023045509 A1 WO2023045509 A1 WO 2023045509A1
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Prior art keywords
fingerprint
operating system
request
interface
related request
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English (en)
French (fr)
Inventor
王哲
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Beijing ByteDance Network Technology Co Ltd
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Beijing ByteDance Network Technology Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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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  • the present disclosure relates to the technical field of data processing, and in particular to a fingerprint access method, device, equipment, storage medium, electronic equipment, computer program product and computer program.
  • the fingerprint service only supports the Linux system.
  • Compatible running of Android applications on the Linux system can be realized in various ways. Existing solutions of this type do not provide the function of using fingerprint services for Android applications.
  • Embodiments of the present disclosure provide a fingerprint access method, device, device, storage medium, electronic device, computer program product and computer program to solve the problems existing in related technologies.
  • the technical solution is as follows:
  • an embodiment of the present disclosure provides a fingerprint access method, including:
  • the fingerprint access interface is an interface conforming to the fingerprint hardware abstraction layer standard of the first operating system
  • the fingerprint-related request is used to instruct the second operating system to access the fingerprint library corresponding to the second operating system, and return a fingerprint processing result corresponding to the fingerprint-related request;
  • an embodiment of the present disclosure provides a fingerprint access device, including:
  • the receiving module is configured to receive a fingerprint-related request sent by the first operating system based on the fingerprint access interface; wherein the fingerprint access interface is an interface conforming to the fingerprint hardware abstraction layer standard of the first operating system;
  • An access module configured to send a fingerprint-related request to the second operating system; wherein, the fingerprint-related request is used to instruct the second operating system to access a fingerprint library corresponding to the second operating system, and return a fingerprint processing result corresponding to the fingerprint-related request;
  • a sending module configured to send the received fingerprint processing result to the first operating system through the fingerprint access interface
  • an embodiment of the present disclosure provides a fingerprint access device, and the device includes: a memory and a processor.
  • the memory and the processor communicate with each other through an internal connection path, the memory is used to store instructions, the processor is used to execute the instructions stored in the memory, and when the processor executes the instructions stored in the memory, the processor Execute the method in any one of the implementation manners of the foregoing aspects.
  • an embodiment of the present disclosure provides a computer-readable storage medium, which stores a computer program.
  • the computer program When the computer program is run on a computer, the method in any one of the above-mentioned aspects is executed.
  • an embodiment of the present disclosure provides an electronic device, including a processor and a memory, the memory stores computer-executable instructions, and the processor executes the computer-executable instructions stored in the memory, so that the processor performs any one of the above aspects method in the implementation.
  • an embodiment of the present disclosure provides a computer program product, including a computer program, and when the computer program is executed by a processor, implements the method in any one of the above aspects.
  • the embodiments of the present disclosure provide a computer program, and when the computer program is executed by a processor, the method in any one of the implementation manners of the foregoing aspects is implemented.
  • the advantages or beneficial effects of the above technical solutions at least include: since the fingerprint access interface is an interface conforming to the fingerprint hardware abstraction layer standard of the first operating system, the first operating system will send fingerprint related requests to the second operating system through the fingerprint access interface system, so that the fingerprint library of the second operating system can be used to process the fingerprint related request of the first operating system to obtain the fingerprint processing result, and the second operating system can then feed back the fingerprint processing result to the corresponding application of the first operating system through the fingerprint access interface , thereby realizing the use of the fingerprint function in the second operating system by the first operating system.
  • FIG. 1 is a flowchart of a fingerprint access method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a fingerprint access method according to an embodiment of the present disclosure
  • Fig. 3 is an interactive schematic diagram of a fingerprint access method according to an embodiment of the present disclosure
  • Fig. 4 is an interactive flowchart of a fingerprint access method according to an embodiment of the present disclosure
  • Fig. 5 is an interactive flowchart of a fingerprint access method according to an embodiment of the present disclosure
  • Fig. 6 is a block diagram of a fingerprint access device according to an embodiment of the present disclosure.
  • FIG. 7 is a block diagram of an electronic device for implementing the fingerprint access method of the embodiment of the present disclosure.
  • the hardware abstraction layer HAL encapsulates the operating system kernel driver, provides hardware access interfaces for various application layer requirements upwards, and shields the driver implementation details of the underlying hardware downwards.
  • Hardware abstraction layer interface description language also known as hardware abstraction layer interface definition language, is a language specification used to describe the interface of software components, so that software components (written in different languages) can communicate with each other.
  • the hardware abstraction layer interface description language is HIDL, which defines the interface between the Android Framework and the Android HAL implementation; in the Tizen system, the hardware abstraction layer interface description language defines native subsystems and Hardware Adaptation Layer for the OAL Interface IDL The interface between implementations; the IDL of other systems can be queried from the architecture manual of the corresponding system.
  • Fig. 1 shows a flowchart of a fingerprint access method according to an embodiment of the present disclosure.
  • the fingerprint access method may include:
  • S101 Receive a fingerprint-related request sent by the first operating system based on the fingerprint access interface; wherein, the fingerprint access interface is an interface conforming to the fingerprint hardware abstraction layer standard of the first operating system;
  • S102 Send a fingerprint-related request to the second operating system; wherein, the fingerprint-related request is used to instruct the second operating system to access a fingerprint library corresponding to the second operating system, and return a fingerprint processing result corresponding to the fingerprint-related request;
  • the fingerprint access interface is an interface conforming to the interface description language of the hardware abstraction layer of the fingerprint of the first operating system, and interacts with the hardware abstraction layer of the fingerprint.
  • the fingerprint access interface is the Fingerprint HIDL interface, which conforms to the Android Fingerprint HAL standard.
  • the fingerprint-related request may include: at least one of a fingerprint entry request, a fingerprint list acquisition request, a fingerprint deletion request, and a fingerprint authentication request.
  • the fingerprint access interface is an interface conforming to the fingerprint hardware abstraction layer standard of the first operating system
  • the first operating system when receiving a fingerprint-related request from an application of the first operating system, the first operating system passes the fingerprint-related request through The fingerprint access interface is sent to the second operating system, so that the fingerprint library of the second operating system can be used to process the fingerprint related request of the first operating system to obtain the fingerprint processing result, and the second operating system then feeds back the fingerprint processing result through the fingerprint access interface
  • the corresponding application to the first operating system realizes the use of the fingerprint function in the second operating system by the first operating system.
  • the first operating system and the second operating system have respective underlying environments, and the first operating system runs in the second operating system.
  • the underlying environment referred to here means that the first operating system and the second operating system have their own application framework Framewok and driver environment. This does not limit the first operating system and the second operating system to be different types of operating systems.
  • both the first operating system and the second operating system are Android operating systems, or both are GNU/Linux operating systems.
  • the first operating system may be implemented to run in the second operating system in various manners, for example, through a virtual machine, through LXC, or through a container.
  • the first operating system runs on the second operating system and shares the Linux Kernel.
  • the first operating system is the Android (Android) operating system, covering Android OS issued by Google, AOSP and various derivative systems based on AOSP, such as MIUI, EMUI, One UI, etc.
  • Android Android
  • various derivative systems based on AOSP such as MIUI, EMUI, One UI, etc.
  • the second operating system is a GNU/Linux operating system, such as Ubuntu, Debian, RedHat and the like.
  • the second operating system is not limited to running on a physical machine, and may also be an operating system hosted on another operating system, such as WSL in a Windows system.
  • the method also includes:
  • the preset communication mechanism may be a binder mechanism or a socket manner.
  • the binder mechanism is used for communication.
  • data copying only needs to be done once, while pipelines, message queues, and sockets need to be copied twice.
  • the binder mechanism is more efficient.
  • receiving the fingerprint-related request sent by the first operating system based on the fingerprint access interface includes at least one of the following steps:
  • the fingerprint entry request is received based on the fingerprint entry interface
  • the fingerprint-related request includes a fingerprint acquisition request
  • the fingerprint entry request is received based on the fingerprint deletion interface
  • the fingerprint authentication request is received based on the fingerprint authentication interface.
  • sending the fingerprint-related request to the second operating system includes:
  • the fingerprint entry request is sent to the second operating system.
  • the token generated by the first operating system needs to be authenticated, and the fingerprint entry request can only be sent to the second operating system after verification, thereby preventing the fingerprint entry request from being tampered with , to ensure the accuracy of the received request.
  • the fingerprint function of the Linux system cannot be used. Therefore, create a virtual fingerprint HAL in the environment in which the Android application runs (i.e. the execution subject of the disclosed fingerprint access method, the virtual fingerprint HAL is similar to the real fingerprint HAL of the Android system, and the code is compiled into a so library file), and the fingerprint access interface of the system Communicate with virtual fingerprint HAL.
  • the Android system and the Linux system communicate based on a preset communication mechanism.
  • the fingerprint service of the Android system sends fingerprint related requests to the fingerprint service of the Linux system through the fingerprint access interface to access the fingerprint database of the Linux system, thereby using the fingerprint function of the Linux system.
  • the virtual fingerprint HAL can also be further constructed with reference to the standard fingerprint library as needed, so that the virtual fingerprint HAL can solve more fingerprint requests as needed, which is not limited here.
  • fingerprint-related requests include: a fingerprint entry request
  • the Android application sends a fingerprint entry request to the Android fingerprint service
  • the Android application calls the preEnroll function to generate a unique token
  • the virtual fingerprint HAL returns the encapsulated token to the Android application through the Android fingerprint service.
  • the Android application uses the Android fingerprint service to call the enroll function and sends it to the virtual fingerprint HAL.
  • the virtual fingerprint HAL sends the enroll function to the fingerprint service of the Linux system through the preset communication mechanism, and the Linux system calls the manufacturer's fingerprint driver to start collecting and storing the fingerprint corresponding to the fingerprint entry request
  • the fingerprint is to be processed, and the entry result (that is, the current fingerprint entry is successful or the current fingerprint entry fails, etc.) is called back to the Android fingerprint service through the virtual fingerprint HAL, thereby returning the entry result to the Android application.
  • the fingerprint service of the Linux system returns to the idle state. If no other fingerprints need to be entered, the Android application uses the Android fingerprint service to call the postEnroll function, and deletes the token through the virtual fingerprint HAL. To indicate that no more fingerprints will be added, and the fingerprint entry will be ended, so as to realize the use of the fingerprint entry function in the Linux system by the Android system.
  • the Android application sends a fingerprint list request to the Android fingerprint
  • the Android application uses the Android fingerprint service to call the enumerate function to send to the virtual fingerprint HAL
  • the virtual fingerprint HAL Send the fingerprint list request to the fingerprint service of the Linux system through the preset communication mechanism, so that the Linux system calls the manufacturer's fingerprint driver to obtain the fingerprint list corresponding to the fingerprint list request, and the fingerprint service of the Linux system sends the obtained fingerprint list to the virtual fingerprint HAL
  • the virtual fingerprint HAL sends the result callback to the Android fingerprint service according to the returned fingerprint list, so as to return the result callback to the Android application, and then realize the use of the fingerprint query function in the Linux system by the Android system.
  • the Android application sends a fingerprint deletion request to the Android fingerprint
  • the Android application uses the Android fingerprint service to send the fingerprint deletion request to the virtual fingerprint HAL
  • the virtual fingerprint HAL sends the fingerprint deletion request to the fingerprint service of the Linux system through the preset communication mechanism, so that the Linux system calls the manufacturer's fingerprint driver to delete the pending fingerprint corresponding to the fingerprint deletion request, and the fingerprint service of the Linux system sends the fingerprint deletion result (such as successful deletion or Deletion failure) is sent to the virtual fingerprint HAL
  • the virtual fingerprint HAL sends the returned fingerprint deletion result to the Android fingerprint service, thereby returning the fingerprint deletion result to the Android application, and then realizing the use of the fingerprint deletion function in the Linux system by the Android system.
  • a fingerprint list request will be sent first, and the Linux system calls the manufacturer’s fingerprint driver to query whether the fingerprint exists according to the fingerprint list request, and then sends a fingerprint deletion request to call the manufacturer’s fingerprint driver to delete the fingerprint.
  • the pending fingerprint corresponding to the delete request is the Linux system.
  • the fingerprint-related request includes: a fingerprint authentication request
  • the Android application sends the fingerprint authentication request to the Android fingerprint
  • the Android application uses the Android fingerprint service to send the fingerprint authentication request to the virtual fingerprint HAL
  • the virtual fingerprint The HAL sends the fingerprint authentication request to the fingerprint service of the Linux system through the preset communication mechanism, so that the Linux system calls the manufacturer's fingerprint driver to authenticate the fingerprint to be processed corresponding to the fingerprint authentication request, and the fingerprint service of the Linux system sends the fingerprint authentication result (if the authentication is successful or authentication failure) to the virtual fingerprint HAL, and the virtual fingerprint HAL sends the returned fingerprint authentication result to the Android fingerprint service, thereby returning the fingerprint authentication result to the Android application, and then realizing the use of the fingerprint authentication function in the Linux system by the Android system.
  • Fig. 6 is a structural block diagram of a fingerprint access device according to an embodiment of the present disclosure. As shown in Figure 6, the device may include:
  • the receiving module 601 receives the fingerprint-related request sent by the first operating system based on the fingerprint access interface; wherein, the fingerprint access interface is an interface that conforms to the fingerprint hardware abstraction layer standard of the first operating system;
  • the access module 602 sends a fingerprint-related request to the second operating system; wherein, the fingerprint-related request is used to instruct the second operating system to access a fingerprint library corresponding to the second operating system, and return a fingerprint processing result corresponding to the fingerprint-related request;
  • the sending module 603 sends the received fingerprint processing result to the first operating system through the fingerprint access interface.
  • the first operating system and the second operating system have respective underlying environments, and the first operating system runs on the second operating system.
  • it also includes:
  • a communication establishing module configured to establish communication with the second operating system through a preset communication mechanism.
  • the receiving module 601 is at least one of the following modules:
  • the first fingerprint request module is used to receive the fingerprint entry request based on the fingerprint entry interface when the fingerprint-related request includes a fingerprint entry request;
  • the second fingerprint request module is used to receive the fingerprint acquisition request based on the fingerprint acquisition interface when the fingerprint related request includes a fingerprint acquisition request;
  • the third fingerprint request module is used to receive a fingerprint entry request based on the fingerprint deletion interface when the fingerprint related request includes a fingerprint deletion request;
  • the fourth fingerprint request module is configured to receive the fingerprint authentication request based on the fingerprint authentication interface when the fingerprint-related request includes a fingerprint authentication request.
  • the access module 602 is further configured to: when the fingerprint-related request includes a fingerprint entry request, receive the token generated by the first operating system, and verify the token; if the token If the verification is passed, the fingerprint entry request is sent to the second operating system.
  • the fingerprint access interface is an interface that conforms to the fingerprint hardware abstraction layer standard of the first operating system
  • the first operating system will send the fingerprint related request to the second operating system through the fingerprint access interface, thereby
  • the fingerprint library of the second operating system can be used to process the fingerprint-related requests of the first operating system to obtain the fingerprint processing results, and the second operating system then feeds back the fingerprint processing results to the corresponding applications of the first operating system through the fingerprint access interface, thereby realizing use of the fingerprint function in the second operating system by the first operating system.
  • Fig. 7 shows a structural block diagram of a fingerprint access device according to an embodiment of the present disclosure.
  • the fingerprint access device includes: a memory 710 and a processor 720 , and the memory 710 stores computer programs that can run on the processor 720 .
  • the processor 720 executes the computer program, the fingerprint access method in the above-mentioned embodiments is realized.
  • the number of memory 710 and processor 720 may be one or more.
  • the fingerprint access device also includes:
  • the communication interface 730 is used to communicate with external devices for interactive data transmission.
  • the bus can be an Industry Standard Architecture (Industry Standard Architecture, ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus, etc.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 7 , but it does not mean that there is only one bus or one type of bus.
  • the memory 710, the processor 720, and the communication interface 730 may communicate with each other through an internal interface.
  • An embodiment of the present disclosure provides a computer-readable storage medium, which stores a computer program. When the program is executed by a processor, the method provided by the embodiment of the present disclosure is implemented.
  • An embodiment of the present disclosure also provides a chip, the chip includes a processor, configured to call from a memory and execute instructions stored in the memory, so that a communication device installed with the chip executes the method provided by the embodiment of the present disclosure.
  • An embodiment of the present disclosure also provides a chip, including: an input interface, an output interface, a processor, and a memory, the input interface, the output interface, the processor, and the memory are connected through an internal connection path, and the processor is used to execute the code in the memory , when the code is executed, the processor is configured to execute the method provided by the embodiment of the present disclosure.
  • An embodiment of the present disclosure also provides an electronic device, including a processor and a memory, where the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory, so that the processor executes the method provided by the embodiments of the present disclosure.
  • the embodiment of the present disclosure also provides a computer program product, including a computer program, and when the computer program is executed by a processor, the method provided in the embodiment of the present disclosure is implemented.
  • the embodiment of the present disclosure also provides a computer program, which implements the method provided in the embodiment of the present disclosure when the computer program is executed by a processor.
  • processor can be a central processing unit (Central Processing Unit, CPU), and can also be other general-purpose processors, digital signal processing (digital signal processing, DSP), application specific integrated circuit (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or any conventional processor or the like. It should be noted that the processor may be a processor supporting advanced RISC machines (ARM) architecture.
  • ARM advanced RISC machines
  • the above-mentioned memory may include a read-only memory and a random access memory, and may also include a non-volatile random access memory.
  • the memory can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory.
  • the non-volatile memory can include read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory can include random access memory (RAM), which acts as external cache memory.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic random access memory dynamic random access memory
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access Memory double data date SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous link dynamic random access memory direct memory bus random access memory (direct rambus) RAM, DR RAM).
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • a computer program product includes one or more computer instructions. When computer program instructions are loaded and executed on a computer, the processes or functions according to the present disclosure are produced in whole or in part.
  • a computer can be a general purpose computer, special purpose computer, computer network, or other programmable device. Computer instructions may be stored in, or transmitted from, one computer-readable storage medium to another computer-readable storage medium.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means two or more, unless otherwise specifically defined.
  • various parts of the present disclosure may be implemented in hardware, software, firmware or a combination thereof.
  • various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. All or part of the steps of the method in the above embodiments can be completed by instructing related hardware through a program.
  • the program can be stored in a computer-readable storage medium. When the program is executed, it includes one of the steps of the method embodiment or its combination.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the above-mentioned integrated modules are implemented in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.
  • the storage medium may be a read-only memory, a magnetic disk or an optical disk, and the like.

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Abstract

本公开提出一种指纹访问方法、装置、设备、存储介质、电子设备，计算机程序产品及计算机程序，涉及数据处理技术领域。具体实现方案为：基于指纹访问接口接收第一操作系统发送的指纹相关请求；其中，指纹访问接口为符合第一操作系统的指纹硬件抽象层标准的接口；将指纹相关请求发送至第二操作系统；其中，指纹相关请求用于指示第二操作系统访问第二操作系统对应的指纹库，并返回与指纹相关请求对应的指纹处理结果；将接收到的指纹处理结果通过指纹访问接口发送至第一操作系统。根据本公开的技术，能够实现第一操作系统对第二操作系统中指纹功能的使用。

Description

指纹访问方法、装置、设备及存储介质
相关申请的交叉引用
本公开要求于2021年09月24日提交的申请号为202111122560.0、名称为“指纹访问方法、装置、设备及存储介质”的中国专利申请的优先权，此申请的内容通过引用并入本文。
技术领域
本公开涉及数据处理技术领域，尤其涉及一种指纹访问方法、装置、设备、存储介质、电子设备，计算机程序产品及计算机程序。
背景技术
当终端设备上运行Linux系统时，指纹服务仅支持Linux系统。可以通过多种方式实现Linux系统上兼容运行安卓应用。已有的此类方案均不提供安卓应用使用指纹服务的功能。
发明内容
本公开实施例提供一种指纹访问方法、装置、设备、存储介质、电子设备，计算机程序产品及计算机程序，以解决相关技术存在的问题，技术方案如下：
第一方面，本公开实施例提供了一种指纹访问方法，包括：
基于指纹访问接口接收第一操作系统发送的指纹相关请求；其中，指纹访问接口为符合所述第一操作系统的指纹硬件抽象层标准的接口；
将指纹相关请求发送至第二操作系统；其中，指纹相关请求用于指示第二操作系统访问第二操作系统对应的指纹库，并返回与指纹相关请求对应的指纹处理结果；
将接收到的指纹处理结果通过指纹访问接口发送至第一操作系统。
第二方面，本公开实施例提供了一种指纹访问装置，包括：
接收模块，用于基于指纹访问接口接收第一操作系统发送的指纹相关请求；其中，指纹访问接口为符合所述第一操作系统的指纹硬件抽象层标准的接口；
访问模块，用于将指纹相关请求发送至第二操作系统；其中，指纹相关请求用于指示第二操作系统访问第二操作系统对应的指纹库，并返回与指纹相关请求对应的指纹处理结果；
发送模块，用于将接收到的指纹处理结果通过指纹访问接口发送至第一操作系统
第三方面，本公开实施例提供了一种指纹访问设备，该设备包括：存储器和处理器。其中，该存储器和该处理器通过内部连接通路互相通信，该存储器用于存储指令，该处理器用 于执行该存储器存储的指令，并且当该处理器执行该存储器存储的指令时，使得该处理器执行上述各方面任一种实施方式中的方法。
第四方面，本公开实施例提供了一种计算机可读存储介质，计算机可读存储介质存储计算机程序，当计算机程序在计算机上运行时，上述各方面任一种实施方式中的方法被执行。
第五方面，本公开实施例提供一种电子设备，包括处理器和存储器，该存储器存储计算机执行指令，该处理器执行该存储器存储的计算机执行指令，使得该处理器执行上述各方面任一种实施方式中的方法。
第六方面，本公开实施例提供一种计算机程序产品，包括计算机程序，该计算机程序被处理器执行时实现上述各方面任一种实施方式中的方法。
第七方面，本公开实施例提供一种计算机程序，该计算机程序被处理器执行时实现上述各方面任一种实施方式中的方法。
上述技术方案中的优点或有益效果至少包括：由于指纹访问接口为符合第一操作系统的指纹硬件抽象层标准的接口，所以第一操作系统会将指纹相关请求通过指纹访问接口发送至第二操作系统，从而能够使用第二操作系统的指纹库对第一操作系统的指纹相关请求进行处理，得到指纹处理结果，第二操作系统再通过指纹访问接口反馈指纹处理结果到第一操作系统的对应应用，进而实现了第一操作系统对第二操作系统中指纹功能的使用。
上述概述仅仅是为了说明书的目的，并不意图以任何方式进行限制。除上述描述的示意性的方面、实施方式和特征之外，通过参考附图和以下的详细描述，本公开进一步的方面、实施方式和特征将会是容易明白的。
附图说明
在附图中，除非另外规定，否则贯穿多个附图相同的附图标记表示相同或相似的部件或元素。这些附图不一定是按照比例绘制的。应该理解，这些附图仅描绘了根据本公开公开的一些实施方式，而不应将其视为是对本公开范围的限制。
图1是根据本公开一实施例的指纹访问方法的流程图；
图2是根据本公开一实施例的指纹访问方法的结构示意图；
图3是根据本公开一实施例中指纹访问方法的交互示意图；
图4是根据本公开一实施例中指纹访问方法的交互流程图；
图5是根据本公开一实施例中指纹访问方法的交互流程图；
图6是根据本公开一实施例的指纹访问装置的框图；
图7是用来实现本公开实施例的指纹访问方法的电子设备的框图。
具体实施方式
在下文中，仅简单地描述了某些示例性实施例。正如本领域技术人员可认识到的那样，在不脱离本公开的精神或范围的情况下，可通过各种不同方式修改所描述的实施例。因此，附图和描述被认为本质上是示例性的而非限制性的。
在下述实施例中，硬件抽象层HAL是对操作系统内核驱动程序的封装，向上对各种应用层需求提供硬件访问接口，向下屏蔽底层硬件的驱动实现细节。
硬件抽象层接口描述语言，又称硬件抽象层接口定义语言，是用来描述软件组件接口的语言规范，使软件组件(不同语言编写的)间相互通信。在Android系统中，硬件抽象层接口描述语言为HIDL，定义了Android Framework与Android HAL实现之间的接口；在Tizen系统中，硬件抽象层接口描述语言为OAL Interface IDL定义了native subsystems与Hardware Adaptation Layer实现之间的接口；其它系统的IDL可对应从相应系统的架构手册中查询。
图1示出根据本公开一实施例的指纹访问方法的流程图。如图1所示，该指纹访问方法可以包括：
S101、基于指纹访问接口接收第一操作系统发送的指纹相关请求；其中，指纹访问接口为符合第一操作系统的指纹硬件抽象层标准的接口；
S102、将指纹相关请求发送至第二操作系统；其中，指纹相关请求用于指示第二操作系统访问第二操作系统对应的指纹库，并返回与指纹相关请求对应的指纹处理结果；
S103、将接收到的指纹处理结果通过指纹访问接口发送至第一操作系统。
在步骤S101中，指纹访问接口为符合第一操作系统的指纹的硬件抽象层的接口描述语言的接口，与指纹的硬件抽象层进行交互。
以Android操作系统为例，指纹访问接口为Fingerprint HIDL接口，是符合安卓Fingerprint HAL标准的接口。
示例性地，指纹相关请求可以包括：指纹录入请求、指纹列表获取请求、指纹删除请求和指纹认证请求中的至少一个。
本公开的技术方案中，由于指纹访问接口为符合第一操作系统的指纹硬件抽象层标准的接口，在接收到第一操作系统的应用的指纹相关请求时，第一操作系统将指纹相关请求通过指纹访问接口发送至第二操作系统，从而能够使用第二操作系统的指纹库对第一操作系统的指纹相关请求进行处理，得到指纹处理结果，第二操作系统再通过指纹访问接口反馈指纹处理结果到第一操作系统的对应应用，进而实现了第一操作系统对第二操作系统中指纹功能的使用。
在一种实施方式中，第一操作系统与第二操作系统具有各自的底层环境，第一操作系统运行在第二操作系统中。
此处所称的底层环境，指的是第一操作系统和第二操作系统具有各自的应用框架Framewok和驱动程序环境。这并不限定第一操作系统和第二操作系统为不同类型的操作系统。
例如，第一操作系统和第二操作均为Android操作系统，或均为GNU/Linux操作系统。可以通过多种方式实现第一操作系统运行在第二操作系统中，例如通过虚拟机的方式、通过LXC、容器的方式。
在一些实施例中，第一操作系统运行在第二操作系统中并共用Linux Kernel。
例如，第一操作系统为Android(安卓)操作系统，涵盖Google发行的Android OS以及AOSP和基于AOSP的各种衍生系统，如MIUI、EMUI、One UI等。
例如，第二操作系统为GNU/Linux操作系统，如Ubuntu、Debian、RedHat等。第二操作系统并不限定是运行在物理机上的，也可以是托管在其它操作系统上的操作系统，例如Windows系统中的WSL。
在一种实施方式中，该方法，还包括：
通过预设通信机制与第二操作系统建立通信。
具体地，预设通信机制可以为binder机制或socket方式。在本实施例中，使用binder机制进行通信，采用Binder机制时数据拷贝只需要一次，而管道、消息队列、Socket都需要2次，Binder机制更加高效。
在一种实施方式中，基于指纹访问接口接收第一操作系统发送的指纹相关请求，包括以下步骤中的至少一个：
在指纹相关请求包括指纹录入请求的情况下，基于指纹录入接口接收指纹录入请求；
在指纹相关请求包括指纹获取请求的情况下，基于指纹获取接口接收指纹获取请求；
在指纹相关请求包括指纹删除请求的情况下，基于指纹删除接口接收指纹录入请求；
在指纹相关请求包括指纹认证请求的情况下，基于指纹认证接口接收指纹认证请求。
以第一操作系统为Android为例，安卓下的应用需要使用指纹功能，则需要访问Fingerprint HAL，而不同指纹相关请求Fingerprint HAL的访问接口也不同。所以根据指纹相关请求对应设置了指纹录入接口、指纹获取接口、指纹删除接口、指纹认证接口等，从而确保可以接收到安卓应用的每一个指纹相关请求，更好的实现安卓系统对Linux系统中指纹的各个功能的使用。
在一种实施方式中，将指纹相关请求发送至第二操作系统，包括：
在指纹相关请求包括指纹录入请求的情况下，若第一操作系统生成的与指纹录入请求对 应的令牌验证通过，则将指纹录入请求发送至第二操作系统。
示例性地，当指纹相关请求为指纹录入请求时，则需要对第一操作系统生成的令牌进行身份验证，验证通过才能将指纹录入请求发送至第二操作系统，从而防止指纹录入请求被篡改，保证了接收到的请求的准确性。
为了方便理解，以第一操作系统为Android、第二操作系统为GNU/Linux为例，以下进行举例说明：
如图2示，由于安卓应用运行在Linux系统中，无法使用Linux系统的指纹功能。因此，在安卓应用运行的环境中创建虚拟指纹HAL(即本公开指纹访问方法的执行主体，该虚拟指纹HAL与安卓系统的真实指纹HAL类似，代码编译为so库文件)，系统的指纹访问接口与虚拟指纹HAL通讯。安卓系统与Linux系统基于预设通信机制进行通信，安卓系统的指纹服务将指纹相关请求通过指纹访问接口发送至Linux系统的指纹服务，以访问Linux系统的指纹库，从而使用Linux系统的指纹功能。需要说明的是，虚拟指纹HAL还可以根据需要参照标准指纹库进一步进行构建，以使虚拟指纹HAL可以根据需要解决更多的指纹请求，在此不作限定。
示例性地，如图3示，在指纹相关请求包括：指纹录入请求的情况下，安卓应用向安卓指纹服务发送指纹录入请求，安卓应用调用preEnroll函数生成独一无二的令牌，并利用虚拟指纹HAL对令牌(token)进行验证。在验证通过后，虚拟指纹HAL将封装的令牌通过安卓指纹服务返回至安卓应用。安卓应用利用安卓指纹服务调用enroll函数并发送至虚拟指纹HAL，虚拟指纹HAL将enroll函数通过预设通信机制发送至Linux系统的指纹服务，Linux系统调用厂商指纹驱动开始收集和存储指纹录入请求对应的待处理指纹，并将录入结果(即当前指纹录入成功或当前指纹录入失败等)通过虚拟指纹HAL回调至安卓指纹服务，从而将录入结果返回至安卓应用。当指纹注册完成(录入完成)后或超时后，Linux系统的指纹服务返回到闲置状态，若无其他指纹需要录入，则安卓应用利用安卓指纹服务调用postEnroll函数，并通过虚拟指纹HAL删除令牌，以表明不会再添加指纹，结束录入指纹，从而实现安卓系统对Linux系统中指纹录入功能的使用。
示例性地，如图4示，在指纹相关请求包括：指纹列表请求的情况下，安卓应用向安卓指纹发送指纹列表请求，安卓应用利用安卓指纹服务调用enumerate函数发送至虚拟指纹HAL，虚拟指纹HAL将指纹列表请求通过预设通信机制发送至Linux系统的指纹服务，以使Linux系统调用厂商指纹驱动从而获取指纹列表请求对应的指纹列表，Linux系统的指纹服务将获取到的指纹列表发送至虚拟指纹HAL，虚拟指纹HAL根据返回的指纹列表向安卓指纹服务发送结果回调，从而将结果回调返回至安卓应用，进而实现安卓系统对Linux系统中指纹查询 功能的使用。
示例性地，如图4示，在指纹相关请求包括：指纹删除请求的情况下，安卓应用向安卓指纹发送指纹删除请求，安卓应用利用安卓指纹服务将指纹删除请求发送至虚拟指纹HAL，虚拟指纹HAL将指纹删除请求通过预设通信机制发送至Linux系统的指纹服务，以使Linux系统调用厂商指纹驱动删除指纹删除请求对应的待处理指纹，Linux系统的指纹服务将指纹删除结果(如删除成功或删除失败)发送至虚拟指纹HAL，虚拟指纹HAL将返回的指纹删除结果发送至安卓指纹服务，从而将指纹删除结果返回至安卓应用，进而实现安卓系统对Linux系统中指纹删除功能的使用。
进一步地，在发送指纹删除请求之前，一般会先发送指纹列表请求，Linux系统调用厂商指纹驱动从而根据指纹列表请求查询是否存在该指纹，若存在再发送指纹删除请求，以调用厂商指纹驱动删除指纹删除请求对应的待处理指纹。
示例性地，如图5示，在指纹相关请求包括：指纹认证请求的情况下，安卓应用向安卓指纹发送指纹认证请求，安卓应用利用安卓指纹服务将指纹认证请求发送至虚拟指纹HAL，虚拟指纹HAL将指纹认证请求通过预设通信机制发送至Linux系统的指纹服务，以使Linux系统调用厂商指纹驱动认证指纹认证请求对应的待处理指纹，Linux系统的指纹服务将指纹认证结果发送(如认证成功或认证失败)至虚拟指纹HAL，虚拟指纹HAL将返回的指纹认证结果发送至安卓指纹服务，从而将指纹认证结果返回至安卓应用，进而实现安卓系统对Linux系统中指纹认证功能的使用。
图6出根据本公开一实施例的指纹访问装置的结构框图。如图6示，该装置可以包括：
接收模块601基于指纹访问接口接收第一操作系统发送的指纹相关请求；其中，指纹访问接口为符合所述第一操作系统的指纹硬件抽象层标准的接口；
访问模块602将指纹相关请求发送至第二操作系统；其中，指纹相关请求用于指示第二操作系统访问第二操作系统对应的指纹库，并返回与指纹相关请求对应的指纹处理结果；
发送模块603将接收到的指纹处理结果通过指纹访问接口发送至第一操作系统。
在一种实施方式中，第一操作系统与第二操作系统具有各自的底层环境，所述第一操作系统运行在所述第二操作系统中。
在一种实施方式中，还包括：
通信建立模块，用于通过预设通信机制与第二操作系统建立通信。
在一种实施方式中，接收模块601以下模块中的至少一个：
第一指纹请求模块，用于在指纹相关请求包括指纹录入请求的情况下，基于指纹录入接口接收指纹录入请求；
第二指纹请求模块，用于在指纹相关请求包括指纹获取请求的情况下，基于指纹获取接口接收指纹获取请求；
第三指纹请求模块，用于在指纹相关请求包括指纹删除请求的情况下，基于指纹删除接口接收指纹录入请求；
第四指纹请求模块，用于在指纹相关请求包括指纹认证请求的情况下，基于指纹认证接口接收指纹认证请求。
在一种实施方式中，访问模块602还用于：在指纹相关请求包括指纹录入请求的情况下，接收所述第一操作系统生成的令牌，并对所述令牌进行验证；若令牌验证通过，则将指纹录入请求发送至第二操作系统。
这样，本公开实施例的装置，由于指纹访问接口为符合第一操作系统的指纹硬件抽象层标准的接口，所以第一操作系统会将指纹相关请求通过指纹访问接口发送至第二操作系统，从而能够使用第二操作系统的指纹库对第一操作系统的指纹相关请求进行处理，得到指纹处理结果，第二操作系统再通过指纹访问接口反馈指纹处理结果到第一操作系统的对应应用，进而实现了第一操作系统对第二操作系统中指纹功能的使用。
本公开实施例各装置中的各模块的功能可以参见上述方法中的对应描述，在此不再赘述。
图7示出根据本公开一实施例的指纹访问设备的结构框图。如图7所示，该指纹访问设备包括：存储器710和处理器720，存储器710内存储有可在处理器720上运行的计算机程序。处理器720执行该计算机程序时实现上述实施例中的指纹访问方法。存储器710和处理器720的数量可以为一个或多个。
该指纹访问设备还包括：
通信接口730，用于与外界设备进行通信，进行数据交互传输。
如果存储器710、处理器720和通信接口730独立实现，则存储器710、处理器720和通信接口730可以通过总线相互连接并完成相互间的通信。该总线可以是工业标准体系结构(Industry Standard Architecture，ISA)总线、外部设备互连(Peripheral Component Interconnect，PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture，EISA)总线等。该总线可以分为地址总线、数据总线、控制总线等。为便于表示，图7中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
可选的，在具体实现上，如果存储器710、处理器720及通信接口730集成在一块芯片上，则存储器710、处理器720及通信接口730可以通过内部接口完成相互间的通信。
本公开实施例提供了一种计算机可读存储介质，其存储有计算机程序，该程序被处理器执行时实现本公开实施例提供的方法。
本公开实施例还提供了一种芯片，该芯片包括，包括处理器，用于从存储器中调用并运行存储器中存储的指令，使得安装有芯片的通信设备执行本公开实施例提供的方法。
本公开实施例还提供了一种芯片，包括：输入接口、输出接口、处理器和存储器，输入接口、输出接口、处理器以及存储器之间通过内部连接通路相连，处理器用于执行存储器中的代码，当代码被执行时，处理器用于执行本公开实施例提供的方法。
本公开实施例还提供一种电子设备，包括处理器和存储器，该存储器存储计算机执行指令；该处理器执行所述存储器存储的计算机执行指令，使得该处理器执行本公开实施例提供的方法。
本公开实施例还提供了一种计算机程序产品，包括计算机程序，该计算机程序被处理器执行时实现本公开实施例提供的方法。
本公开实施例还提供了一种计算机程序，该计算机程序被处理器执行时实现本公开实施例提供的方法。
应理解的是，上述处理器可以是中央处理器(Central Processing Unit，CPU)，还可以是其他通用处理器、数字信号处理器(digital signal processing，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者是任何常规的处理器等。值得说明的是，处理器可以是支持进阶精简指令集机器(advanced RISC machines，ARM)架构的处理器。
进一步地，可选的，上述存储器可以包括只读存储器和随机存取存储器，还可以包括非易失性随机存取存储器。该存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以包括只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以包括随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用。例如，静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic random access memory，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data date SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当 使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本公开的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包括于本公开的至少一个实施例或示例中。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或隐含地包括至少一个该特征。在本公开的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
流程图中或在此以其他方式描述的任何过程或方法描述可以被理解为，表示包括一个或更多个用于实现特定逻辑功能或过程的步骤的可执行指令的代码的模块、片段或部分。并且本公开的优选实施方式的范围包括另外的实现，其中可以不按所示出或讨论的顺序，包括根据所涉及的功能按基本同时的方式或按相反的顺序，来执行功能。
在流程图中表示或在此以其他方式描述的逻辑和/或步骤，例如，可以被认为是用于实现逻辑功能的可执行指令的定序列表，可以具体实现在任何计算机可读介质中，以供指令执行系统、装置或设备(如基于计算机的系统、包括处理器的系统或其他可以从指令执行系统、装置或设备取指令并执行指令的系统)使用，或结合这些指令执行系统、装置或设备而使用。
应理解的是，本公开的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中，多个步骤或方法可以用存储在存储器中且由合适的指令执行系统执行的软件或固件来实现。上述实施例方法的全部或部分步骤是可以通过程序来指令相关的硬件完成，该程序可以存储于一种计算机可读存储介质中，该程序在执行时，包括方法实施例的步骤之一或其组合。
此外，在本公开各个实施例中的各功能单元可以集成在一个处理模块中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。上述集成的模块如果以软件功 能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读存储介质中。该存储介质可以是只读存储器，磁盘或光盘等。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到其各种变化或替换，这些都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以权利要求的保护范围为准。

Claims (13)

  1. 一种指纹访问方法，其特征在于，包括：
    基于指纹访问接口接收第一操作系统发送的指纹相关请求；其中，所述指纹访问接口为符合所述第一操作系统的指纹硬件抽象层标准的接口；
    将所述指纹相关请求发送至第二操作系统；其中，所述指纹相关请求用于指示所述第二操作系统访问所述第二操作系统对应的指纹库，并返回与所述指纹相关请求对应的指纹处理结果；
    将接收到的所述指纹处理结果通过所述指纹访问接口发送至所述第一操作系统。
  2. 根据权利要求1所述的方法，其特征在于，所述第一操作系统与所述第二操作系统具有各自的底层环境，所述第一操作系统运行在所述第二操作系统中。
  3. 根据权利要求1或2所述的方法，其特征在于，还包括：
    通过预设通信机制与所述第二操作系统建立通信。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述基于指纹访问接口接收第一操作系统发送的指纹相关请求，包括以下步骤中的至少一个：
    在所述指纹相关请求包括指纹录入请求的情况下，基于指纹录入接口接收所述指纹录入请求；
    在所述指纹相关请求包括指纹获取请求的情况下，基于指纹获取接口接收所述指纹获取请求；
    在所述指纹相关请求包括指纹删除请求的情况下，基于指纹删除接口接收所述指纹录入请求；
    在所述指纹相关请求包括指纹认证请求的情况下，基于指纹认证接口接收所述指纹认证请求。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述将所述指纹相关请求发送至第二操作系统，包括：
    在指纹相关请求包括指纹录入请求的情况下，接收所述第一操作系统生成的令牌，并对所述令牌进行验证；
    若所述令牌通过验证，则将所述指纹录入请求发送至第二操作系统。
  6. 一种指纹访问装置，其特征在于，包括：
    接收模块，用于基于指纹访问接口接收第一操作系统发送的指纹相关请求；其中，所述指纹访问接口为符合所述第一操作系统的指纹硬件抽象层标准的接口；
    访问模块，用于将所述指纹相关请求发送至第二操作系统；其中，所述指纹相关请求用于指示所述第二操作系统访问所述第二操作系统对应的指纹库，并返回与所述指纹相关请求对应的指纹处理结果；
    发送模块，用于将接收到的所述指纹处理结果通过所述指纹访问接口发送至所述第一操作系统。
  7. 根据权利要求6所述的装置，其特征在于，所述第一操作系统与所述第二操作系统具有各自的底层环境，所述第一操作系统运行在所述第二操作系统中。
  8. 根据权利要求6或7所述的装置，其特征在于，还包括：
    通信建立模块，用于通过预设通信机制与所述第二操作系统建立通信。
  9. 一种电子设备，其特征在于，包括：处理器和存储器，所述存储器中存储指令，所述指令由处理器加载并执行，以实现如权利要求1至5中任一项所述的方法。
  10. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质内存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至5中任一项所述的方法。
  11. 一种电子设备，其特征在于，包括：处理器和存储器；
    所述存储器存储计算机执行指令；
    所述处理器执行所述存储器存储的计算机执行指令，使得所述处理器执行如权利要求1至5中任一项所述的方法。
  12. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机程序，所述计算机程序被处理器执行时实现如权利要求1至5中任一项所述的方法。
  13. 一种计算机程序，其特征在于，所述计算机程序被处理器执行时实现如权利要求1至5中任一项所述的方法。
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