WO2020088008A1

WO2020088008A1 - Biological characteristic information processing method and apparatus based on block chain, and terminal device

Info

Publication number: WO2020088008A1
Application number: PCT/CN2019/098106
Authority: WO
Inventors: 王远超
Original assignee: 阿里巴巴集团控股有限公司
Priority date: 2018-11-01
Filing date: 2019-07-29
Publication date: 2020-05-07
Also published as: CN109657440B; TW202018562A; CN109657440A

Abstract

Embodiments of the present specification are a biological characteristic information processing method and apparatus based on a block chain, and a terminal device. The method comprises: receiving social information and a first block identifier, wherein the first block identifier is used for identifying a first data block, and the first data block records first biological characteristic information associated with the social information; obtaining second biological characteristic information associated with the social information; and sending the second biological characteristic information and the first block identifier to a block chain server so as to record the second biological characteristic information on a second data block, wherein the second data block is adjacent to the first data block in the block chain.

Description

Biometric information processing method and device based on blockchain, and terminal equipment

Technical field

The embodiments of the present specification relate to the field of computer technology, and in particular to a blockchain-based biometric information processing method and device, and terminal equipment.

Background technique

With the development of social informatization, a lot of information needs to be effectively disseminated. In recent years, the Internet has become the main channel for people to obtain and share information. Disseminating information through the Internet, for example, sharing information among users, becomes more easily accepted by users. In some cases, it is necessary to identify the main body of information dissemination in order to understand the propagation path and influence range of the master information.

In the related art, the main body of dissemination of information is usually located to an electronic device. Specifically, the device identifier of the electronic device involved in the information dissemination process can be obtained; in turn, the device identifier can be used to understand the propagation path and influence range of the master information. The device identification may include the IP address and MAC address of the electronic device. For example, after receiving certain information, the electronic device can obtain its own MAC address; it can send the MAC address to the server. The server may receive the MAC address. In this way, the server can obtain the device identification of the electronic device involved in the propagation of the information.

In the above related art, on the one hand, the device identification of the electronic device is easily tampered with. In this way, it is impossible to accurately understand the propagation path and influence range of the grasped information through the device identification. On the other hand, the acquired device IDs are independent of each other and do not have an association relationship. This is not easy to understand the propagation path and influence range of the master information.

Summary of the invention

The purpose of the embodiments of this specification is to provide a blockchain-based biometric information processing method and device, and terminal equipment, so as to accurately understand the propagation path and influence range of grasping social information.

To achieve the above purpose, embodiments of the present specification provide a blockchain-based biometric information processing method, including: receiving social information and a first block identifier; the first block identifier is used to identify a first data block ; The first data block records the first biometric information associated with the social information; Get the second biometric information associated with the social information; Send the second biometric to the blockchain server Feature information and the first block identifier to record the second biometric information on a second data block; the second data block is relative to the first data block in the blockchain adjacent.

To achieve the above purpose, embodiments of the present specification provide a blockchain-based biometric information processing apparatus, including: a receiving unit for receiving social information and a first block identifier; the first block identifier is used for A first data block; the first data block records first biometric information associated with the social information; an obtaining unit is configured to obtain second biometric information associated with the social information; send A unit for sending the second biometric information and the first block identifier to a blockchain server, so as to record the second biometric information on a second data block; the second data area The block is adjacent to the first data block in the blockchain.

To achieve the above purpose, embodiments of the present specification provide a terminal device, including: a memory for storing computer instructions; a processor for executing the computer instructions to achieve the following steps: receiving social information and a first block identifier; The first block identifier is used to identify a first data block; the first data block records first biometric information associated with the social information; and obtains a second associated with the social information Biometric information; send the second biometric information and the first block identifier to a blockchain server to record the second biometric information on a second data block; the second data area The block is adjacent to the first data block in the blockchain.

It can be seen from the technical solutions provided in the above embodiments of the present specification that in the embodiments of the present specification, the data processing terminal can receive social information and the first block identifier; can obtain second biometric information associated with the social information; The blockchain server sends the second biometric information and the first block identifier to record the second biometric information on the second data block. On the one hand, in this embodiment, the main body of social information can be located to the user through the biometric information to prevent tampering and forgery. On the other hand, in this embodiment, blockchain technology can be used to realize the recording of social information propagation paths. Therefore, this embodiment can accurately understand the propagation path and influence range of the social information.

BRIEF DESCRIPTION

In order to more clearly explain the embodiments of the specification or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only These are some of the embodiments described in this specification. For those of ordinary skill in the art, without paying any creative labor, other drawings can also be obtained based on these drawings.

1 is a schematic diagram of a blockchain according to an embodiment of this specification;

2 is a flowchart of a blockchain-based biometric information processing method according to an embodiment of the present specification;

3 is a schematic diagram of a blockchain-based biometric information processing method according to an embodiment of the present specification;

4 is a schematic diagram of the functional structure of a blockchain-based biometric information processing device according to an embodiment of the present specification;

5 is a schematic diagram of a functional structure of a terminal device according to an embodiment of the present specification.

detailed description

The technical solutions in the embodiments of the present specification will be described clearly and completely in the following with reference to the drawings in the embodiments of the present specification. Obviously, the described embodiments are only a part of the embodiments of the present specification, not all the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this specification.

Please refer to Figure 1, Figure 2 and Figure 3. The embodiments of the present specification provide a blockchain-based biometric information processing method.

The biometric information processing method uses a terminal device as an execution subject. For ease of description, the terminal device that executes the biometric information processing method is referred to as a data processing terminal below. The data processing terminal may be a PC (personal computer), a server, an industrial computer (industrial control computer), a mobile smart phone, a tablet electronic device, a portable computer (such as a notebook computer, etc.), a personal digital assistant (PDA), or a desktop type Computer or smart wearable device, etc. The data processing terminal may be integrated with a functional module capable of collecting biometric information. The user can be identified according to the biometric information collected by the functional module. The biometric information may include at least one of the following: voiceprint information, fingerprint information, palmprint information, face information, iris information, and the like. The functional module may include at least one of the following: a shooting module, a fingerprint module, a microphone, and the like. Specifically, for example, face information and / or iris information can be collected through the photographing module. As another example, fingerprint information can be collected through the fingerprint module.

The biometric information processing method may include the following steps.

Step S10: Receive social information and the first block identifier.

In this embodiment, the social information may be information that can be propagated via the Internet, such as information in a circle of friends, information in Weibo, or short video information in Kuaishou. The social information may be any type of information, such as picture information, text information, sound information, video information, and any combination thereof.

In this embodiment, the first block identifier may be used to identify the first data block. The first data block may be located in the blockchain. The first block identifier may specifically be the block height of the first data block in the blockchain. Of course, those skilled in the art should understand that the first block identifier may also be any other information that can identify the first data block, such as the hash value of the first data block.

The first data block may record first biometric information. The first biometric information may include at least one of the following: fingerprint information, voiceprint information, face information, and iris information. The first biometric information may come from a user who operates the social information. In this way, the user can be identified through the first biometric information. The operations include but are not limited to creation, viewing, editing, forwarding, commenting, etc. The first data block may directly record the first biometric information; or, it may also record the ciphertext of the biometric identification code generated according to the first biometric information. The biometric identification code ciphertext can be obtained in the following manner: encoding the first biometric information to obtain a biometric identification code; and encrypting the biometric identification code to obtain the biometric identification code ciphertext.

The blockchain may be associated with the social information. The blockchain may include at least one data block. Each data block may record biometric information associated with the social information. The biometric information recorded in different data blocks may be the same or different. In this way, the blockchain can represent the propagation path of the social information in the Internet. The data blocks in the blockchain constitute propagation nodes on the propagation path. Of course, the data block in the blockchain may directly record the biometric information; or, it may also record the ciphertext of the biometric identification code generated according to the biometric information.

In this embodiment, the social information and the first block identifier may be sent by the first terminal. The first terminal may be a PC (personal computer), a server, an industrial computer (industrial control computer), a mobile smart phone, a tablet electronic device, a portable computer (such as a notebook computer, etc.), a personal digital assistant (PDA), or a desktop Computer or smart wearable device, etc. The first terminal may be integrated with a function module capable of collecting biometric information. The first terminal may specifically acquire social information and a first block identifier; and may send the social information and the first block identifier to the data processing terminal. Wherein, the social information may be input by the user on the first terminal, or may be sent by other terminal devices. The first block identifier may be sent by the blockchain server. The blockchain server can join the blockchain network as a blockchain node.

Step S12: Acquire second biometric information associated with the social information.

In this embodiment, the second biometric information may come from a user who operates the social information. In this way, the second biometric information can be used to identify the user. Alternatively, the second biometric information may also be preset biometric information corresponding to the social information. Corresponding to the collected biometric information, the preset biometric information may include at least one of the following: fingerprint information, voiceprint information, face information, and iris information.

In this embodiment, the data processing terminal may receive information collection instructions. The information collection instruction may be generated by a user's active operation trigger. For example, the data processing terminal may detect, press, click, double-click, or swipe any combination of one or more designated keys, and then generate the information collection instruction. The designated key may be a virtual key or a physical key, and the virtual key may be, for example, a button control or a graphic control, and the physical key may be, for example, a push button, a rocker button, a dial, a slider switch, or a joystick Wait. As another example, the data processing terminal may recognize the preset gesture, and then generate the information collection instruction. The preset gesture may be, for example, swiping left or swiping right. As another example, the data processing terminal may also detect that the operation focus leaves the specified page, and then generate the information collection instruction. The specified page may be, for example, a page for a user to input social information; or, a page for viewing social information; or, a page for a user to edit social information. Alternatively, the information collection instruction may be automatically generated by the data processing terminal. For example, the data processing terminal may be installed with an automation program. After the automated program is run, it can automatically generate the information collection instructions periodically.

When the information collection instruction is triggered by a user's active operation, after receiving the information collection instruction, the data processing terminal can usually successfully collect the user's biological characteristic information. When the information collection instruction is automatically generated by the data processing terminal, after receiving the information collection instruction, the data processing terminal generally cannot successfully collect the user's biometric information. In this way, the data processing terminal can collect the user's biometric information after receiving the information collection instruction; if the collection is successful, the information collection instruction is considered to be triggered by the user's active operation, and the collected biometric information can be used as Second biometric information; if the collection fails, it is considered that the information collection instruction is automatically generated by the data processing terminal, and preset biometric information can be obtained as the second biometric information.

The second biometric information may include a type of biometric information. For example, the second biometric information may include fingerprint information. Specifically, for example, the data processing terminal may collect the fingerprint information of the user; if the collection is successful, the collected fingerprint information may be obtained as the second biometric information; if the collection fails, the preset fingerprint information may be obtained as the second biometric information. . Alternatively, the second biometric information may also include multiple biometric information. For example, the second biometric information may include fingerprint information and iris information. Specifically, for example, the data processing terminal can collect the user's fingerprint information and iris information; if both are collected successfully, the collected fingerprint information and iris information can be obtained as second biometric information; if the fingerprint information collection is successful, and If the iris information collection fails, the collected fingerprint information and the preset iris information can be obtained as the second biometric information; if the fingerprint information collection fails and the iris information collection is successful, the preset fingerprint information and the collected iris information can be obtained as the second biological Feature information; if both of them fail to collect, preset fingerprint information and preset iris information can be obtained as second biometric information. It should be noted that, when the data processing terminal collects multiple types of biometric information, the multiple types of biometric information may correspond to the same information collection instruction, or may correspond to different information collection instructions. For example, the data processing terminal may collect fingerprint information and iris information at the same time after receiving the information collection instruction. As another example, the data processing terminal may collect fingerprint information after receiving the fingerprint information collection instruction; it may collect iris information after receiving the iris information collection instruction.

Step S14: Send the second biometric information and the first block identifier to the blockchain server.

In this embodiment, the data processing terminal may send the second biometric information and the first block identifier to a blockchain server. The blockchain server can join the blockchain network as a node. In this way, the blockchain server can receive the second biometric information and the first block identifier; can submit the second biometric information and the first block identifier to the blockchain; so that The second biometric information is recorded in the data block, and the second data block and the first data block identified by the first block identification are adjacent in the blockchain. Here, the second data block may be a data block recorded with the second biometric information.

In an implementation manner of this embodiment, the data processing terminal may encode the second biometric information to obtain a biometric identification code; the biometric identification code may be encrypted to obtain a ciphertext of the biometric identification code ; The ciphertext of the biometric identification code and the first block identifier can be sent to the blockchain server. In this way, the blockchain server can receive the biometric identification code ciphertext and the first block identification; can submit the biometric identification code ciphertext and the first block identification to the blockchain; so that The ciphertext of the biometric identification code is recorded in the data block, and the second data block and the first data block identified by the first block identification are adjacent in the blockchain. The second data block may be a data block recorded with the ciphertext of the biometric identification code. It should be noted that, as described above, the second biometric information may include one type of biometric information, or multiple types of biometric information. When the second biometric information includes a type of biometric information, the data processing terminal may encode the biometric information to obtain a biometric identification code; the biometric identification code may be encrypted to obtain biometric identification Code ciphertext. When the second biometric information includes multiple biometric information, the data processing terminal may separately encode multiple biometric information to obtain multiple biometric identification codes; the multiple biometric identification codes may be Encrypt together to get the ciphertext of the biometric identification code.

Further, in this embodiment, in order to prevent the preset biometric information from being recorded in the data block of the blockchain. The data processing terminal may compare the biometric identification code ciphertext with the specified ciphertext; when the biometric identification code ciphertext is different from the specified ciphertext, the biometric identification code ciphertext and The first block identifier is described; when the ciphertext of the biometric identification code is the same as the designated ciphertext, the ciphertext of the biometric identification code can be abandoned. The data processing terminal discarding the ciphertext of the biometric identification code may include: ignoring or deleting the ciphertext of the biometric identification code. Of course, the data processing terminal may also use other methods to abandon the ciphertext of the biometric identification code, which is not specifically limited in this embodiment. Wherein, the designated ciphertext can be obtained by encrypting the preset biometric information. For example, the preset biometric information can be encoded to obtain the specified biometric identification code; the specified biometric identification code can be encrypted to obtain the specified ciphertext. In addition, the designated ciphertext can be obtained by encrypting a preset type of biometric information. For example, the preset fingerprint information can be encoded to obtain a fingerprint biometric identification code; the fingerprint biometric identification code can be encrypted to obtain a designated ciphertext. Alternatively, the designated ciphertext may also be obtained by encrypting various preset biometric information. For example, the preset fingerprint information and the preset iris information can be encoded separately to obtain the fingerprint biometric identification code and the iris biometric identification code; the fingerprint biometric identification code and the iris biometric identification code can be encrypted together to obtain the specified password Text.

In one implementation of this embodiment, the blockchain server may obtain the block identifier of the second data block as the second block identifier; and may send the second block identifier to the data processing terminal. The second block identifier may be used to identify the second data block, for example, may be the block height or hash value of the second data block. The data processing terminal may receive the second block identifier; and may send the social information and the second block identifier to the second terminal. Wherein, after receiving the information sending instruction, the data processing terminal may send the social information and the second block identifier to the second terminal. For example, the data processing terminal may detect, press, click, double-click, or swipe any combination of one or more designated keys, and then generate the information sending instruction. The designated key may be a virtual key or a physical key, for example, the virtual key may be a button control or a graphical control, etc. The physical key may be, for example, a push button, a rocker button, a dial, a slider switch, or a joystick Wait. As another example, the data processing terminal may recognize the preset gesture and then generate the information sending instruction. The preset gesture may be, for example, swiping left or swiping right. In addition, the data processing terminal may directly send the social information to the second terminal. Alternatively, the user may modify the social information at the data processing terminal. The data processing terminal may send the modified social information to the second terminal.

In this embodiment, the data processing terminal may receive social information and a first block identifier; may obtain second biometric information associated with the social information; and may send the second biometric to the blockchain server Feature information and the first block identification, so as to record the second biometric information on the second data block. On the one hand, in this embodiment, the main body of social information can be located to the user through the biometric information to prevent tampering and forgery. On the other hand, in this embodiment, blockchain technology can be used to realize the recording of social information propagation paths. Therefore, this embodiment can accurately understand the propagation path and influence range of the social information.

An example of a scenario of an embodiment of this specification is introduced below.

In this scenario example, Zhao Er may have terminal device A. Zhang San may have terminal device B. Li Si may have the terminal device C.

In this scenario example, terminal device A may be provided with a social information input page. Zhao Er can input social information in the social information input page. After the input is completed, Zhao Er can operate the terminal device A to leave the social information input page. In this way, the operation focus also leaves the social information input page. When terminal device A detects that the operation focus leaves the social information input page, it can generate an information collection instruction; furthermore, it can collect Zhao Er ’s fingerprint information and iris information as the first biometric information; it can perform the first biometric information Encoding to obtain the first biometric identification code; the first biometric identification code can be encrypted to obtain the first biometric identification code ciphertext; the first biometric identification code ciphertext and the designated ciphertext can be performed Comparison; when the first ciphertext of the first biometric identification code is different from the specified ciphertext, the first ciphertext of the first biometric identification code may be sent to the first blockchain server.

The first blockchain server can join the blockchain network as a node. In this way, the first blockchain server can receive the ciphertext of the first biometric identification code; can submit the ciphertext of the first biometric identification code to the blockchain; so that the first biometric identification code The ciphertext is recorded in the genesis data block. The first blockchain server can obtain the genesis block as the first data block; can obtain the block identifier of the first data block as the first block identifier; and can send the first block to the terminal device A A block identification. Terminal device A may receive the first block identifier.

In this scenario example, Zhao Er can operate terminal device A; so that terminal device A sends the social information and the first block identifier to terminal device B.

Terminal device B may receive the social information and the first block identifier. Terminal device B may be provided with viewing controls. Zhang San can click the view control to view the social information. After detecting that the viewing control is clicked, the terminal device B can generate an information collection instruction; further, it can collect fingerprint information and iris information of Zhang San as second biometric information; it can encode the second biometric information, Obtain a second biometric identification code; the second biometric identification code can be encrypted to obtain a second biometric identification code ciphertext; the second biometric identification code ciphertext can be compared with the specified ciphertext ; When the second biometric identification code ciphertext is different from the specified ciphertext, the second biometric identification code ciphertext and the first block identifier may be sent to a second blockchain server.

The second blockchain server can join the blockchain network as a node. In this way, the second blockchain server can receive the second biometric ciphertext and the first block identifier; the second biometric ciphertext and the first block identifier can be Submit to the blockchain; so that the second biometric code ciphertext is recorded in the data block, and the second data block and the first data block identified by the first block identification Adjacent in the blockchain. The second data block may be a data block recorded with the ciphertext of the second biometric identification code. The second block chain server may obtain the block identifier of the second data block as the second block identifier; and may send the second block identifier to the terminal device B. Terminal device B may receive the second block identifier.

In this scenario example, Zhang San can operate terminal device B; so that terminal device B sends the social information and the second block identifier to terminal device C.

The terminal device C may receive the social information and the second block identifier. The terminal device C may be provided with a viewing control. Li Si can click the view control to view the social information. After detecting that the viewing control is clicked, the terminal device C can generate an information collection instruction; further, it can collect Li Si ’s fingerprint information and iris information as third biometric information; it can encode the third biometric information, A third biometric identification code is obtained; the third biometric identification code can be encrypted to obtain a third biometric identification code ciphertext; the third biometric identification code ciphertext can be compared with a designated ciphertext ; When the third biometric identification code ciphertext is different from the specified ciphertext, the third biometric identification code ciphertext and the second block identifier may be sent to a third blockchain server.

The third blockchain server can join the blockchain network as a node. In this way, the third blockchain server can receive the third biometric ciphertext and the second block identifier; the third biometric ciphertext and the second block identifier can be Submit to the blockchain; so that the ciphertext of the third biometric identification code is recorded in the data block, and the third data block and the second data block identified by the second block identification Adjacent in the blockchain. The third data block may be a data block recorded with the ciphertext of the third biometric identification code. The third blockchain server may obtain the block identifier of the third data block as the third block identifier; and may send the third block identifier to the terminal device C. The terminal device C may receive the third block identifier.

In this scenario example, of course, Li Si can operate the terminal device C; so that the terminal device C sends the social information and the third block identifier to other terminal devices. I will not describe them one by one here. In this way, the blockchain can represent the propagation path of the social information in the Internet. The data blocks in the blockchain constitute propagation nodes on the propagation path. It should be noted that, in this scenario example, the first blockchain server, the second blockchain server, and the third blockchain server may be the same or different.

Please refer to Figure 4. The embodiments of the present specification provide a blockchain-based biometric information processing device. The biometric information processing device may include the following units.

The receiving unit 20 is configured to receive social information and a first block identifier; the first block identifier is used to identify a first data block; the first data block records a third associated with the social information A biometric information;

An obtaining unit 22, configured to obtain second biometric information associated with the social information;

A sending unit 24, configured to send the second biometric information and the first block identifier to a blockchain server, so as to record the second biometric information on a second data block; the second The data block and the first data block are adjacent in the blockchain.

See Figure 5. An embodiment of this specification provides a terminal device. The terminal device may be a PC (personal computer) machine, a server, an industrial computer (industrial control computer), a mobile smart phone, a tablet electronic device, a portable computer (such as a notebook computer, etc.), a personal digital assistant (PDA), a desktop computer Or smart wearable devices. The terminal device may include a memory and a processor.

In this embodiment, the memory can be implemented in any suitable manner. For example, the memory may be a read-only memory, a mechanical hard disk, a solid-state hard disk, or a U disk. The memory may be used to store computer instructions.

In this embodiment, the processor may be implemented in any suitable manner. For example, the processor may employ, for example, a microprocessor or processor and a computer-readable medium storing computer-readable program code (such as software or firmware) executable by the (micro) processor, logic gates, switches, application specific integrated circuits Application Specific (Integrated Circuit, ASIC), programmable logic controller and embedded microcontroller, etc. The processor may execute the computer instructions to implement the following steps: receive social information and a first block identifier; the first block identifier is used to identify a first data block; the first data block records First biometric information associated with the social information; acquiring second biometric information associated with the social information; sending the second biometric information and the first block identifier to a blockchain server, In order to record the second biometric information on the second data block; the second data block and the first data block are adjacent in the blockchain.

It should be noted that the embodiments in this specification are described in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments. Place. In particular, for the device embodiment and the terminal device embodiment, since they are basically similar to the method embodiment, the description is relatively simple, and for related parts, refer to the description of the method embodiment.

In addition, after reading this specification file, those skilled in the art can think of any combination of some or all of the embodiments listed in this specification without creative work, and these combinations are also within the scope of disclosure and protection of this specification.

In the 1990s, the improvement of a technology can be clearly distinguished from the improvement in hardware (for example, the improvement of circuit structures such as diodes, transistors, and switches) or the improvement in software (the improvement of the process flow). However, with the development of technology, the improvement of many methods and processes can be regarded as a direct improvement of the hardware circuit structure. Designers almost get the corresponding hardware circuit structure by programming the improved method flow into the hardware circuit. Therefore, it cannot be said that the improvement of a method flow cannot be realized by hardware physical modules. For example, a programmable logic device (Programmable Logic Device, PLD) (such as a field programmable gate array (Field Programmable Gate Array, FPGA)) is such an integrated circuit, and its logic function is determined by the user programming the device. It is up to the designer to "integrate" a digital system on a PLD without having to ask the chip manufacturer to design and manufacture a dedicated integrated circuit chip 2. Moreover, nowadays, instead of manually making integrated circuit chips, this kind of programming is also mostly implemented with "logic compiler" software, which is similar to the software compiler used in program development and writing, but before compilation The original code must also be written in a specific programming language, which is called hardware description language (Hardware Description Language, HDL), and HDL is not only one, but there are many, such as ABEL (Advanced Boolean Expression) Language , AHDL (AlteraHardwareDescriptionLanguage), Confluence, CUPL (CornellUniversityProgrammingLanguage), HDCal, JHDL (JavaHardwareDescriptionLanguage), Lava, Lola, MyHDL, PALASM, RHDL (RubyHardwareDescription) It is VHDL (Very-High-Speed Integrated Circuit Hardware Description) and Verilog2. Those skilled in the art should also be clear that by simply programming the method flow in the above hardware description languages and programming it into the integrated circuit, the hardware circuit that implements the logic method flow can be easily obtained.

The system, device, module or unit explained in the above embodiments may be specifically implemented by a computer chip or entity, or implemented by a product with a certain function. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device A combination of any of these devices.

It can be known from the description of the above embodiments that those skilled in the art can clearly understand that this specification can be implemented by means of software plus a necessary general hardware platform. Based on this understanding, the technical solutions of this specification can be embodied in the form of software products in essence or part that contributes to the existing technology, and the computer software products can be stored in storage media, such as ROM / RAM, disk , CD-ROM, etc., including several instructions to enable a computer device (which may be a personal computer, a blockchain server, or a network device, etc.) to perform the methods described in the various embodiments of this specification or some parts of the embodiments.

This manual can be used in many general or special computer system environments or configurations. For example: personal computers, blockchain server computers, handheld or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set-top boxes, programmable consumer electronics devices, network PCs, small computers, large-scale Computers, distributed computing environments including any of the above systems or devices, etc.

This specification can be described in the general context of computer-executable instructions executed by a computer, such as a program module. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. This specification can also be practiced in distributed computing environments in which tasks are performed by remote processing devices connected through a communication network. In a distributed computing environment, program modules may be located in local and remote computer storage media including storage devices.

Although the description has been described through the embodiments, a person of ordinary skill in the art knows that there are many variations and changes in the description without departing from the spirit of the description, and it is hoped that the appended claims include these variations and changes without departing from the spirit of the description.

Claims

A biometric information processing method based on blockchain, including:

Receiving social information and a first block identifier; the first block identifier is used to identify a first data block; the first data block records first biometric information associated with the social information;

Acquiring second biometric information associated with the social information;

Send the second biometric information and the first block identifier to a blockchain server to record the second biometric information on a second data block; the second data block and the The first data block is adjacent in the blockchain.
The method of claim 1, the receiving social information and the first block identifier, comprising:

Receive the social information and the first block identifier sent by the first terminal;

Accordingly, the method further includes:

Receiving the second block identifier fed back by the blockchain server; the second block identifier is used to identify the second data block;

Sending the social information and the second block identifier to a second terminal.
The method of claim 1, the blockchain is used to represent a propagation path of the social information; data blocks in the blockchain constitute a propagation node on the propagation path.
The method of claim 1, the first biometric information and the second biometric information both include at least one of fingerprint information and iris information.
The method of claim 1, the acquiring second biometric information includes:

After receiving the information collection instruction, the user's biometric information is collected as the second biometric information.
The method of claim 5, the acquiring second biometric information further comprising:

If the collection fails, the preset biometric information is acquired as the second biometric information.
The method of claim 1, before sending the second biometric information and the first block identifier to a blockchain server, the method further comprises:

Encoding the second biometric information to obtain a biometric identification code;

Encrypt the biometric identification code to obtain a ciphertext of the biometric identification code;

Correspondingly, the sending of the second biometric information and the first block identifier to the blockchain server includes:

Sending the ciphertext of the biometric code and the first block identifier to the blockchain server, so as to record the ciphertext of the biometric code on the second data block.
The method of claim 7, the sending the biometric identification code ciphertext and the first block identifier to a blockchain server includes:

When the biometric identification code ciphertext is different from the specified ciphertext, send the biometric identification code ciphertext and the first block identifier to the blockchain server; the specified ciphertext passes the preset biometric The information is encrypted.
The method of claim 8, further comprising:

When the biometric identification code ciphertext is the same as the specified ciphertext, the biometric identification code ciphertext is discarded; the specified ciphertext is obtained by encrypting the preset biometric information.
A biometric information processing device based on blockchain, including:

A receiving unit, configured to receive social information and a first block identifier; the first block identifier is used to identify a first data block; the first data block records a first associated with the social information Biometric information;

An obtaining unit, configured to obtain second biometric information associated with the social information;

A sending unit, configured to send the second biometric information and the first block identifier to a blockchain server, so as to record the second biometric information on a second data block; the second data The block and the first data block are adjacent in the blockchain.
A terminal device, including:

Memory, used to store computer instructions;

A processor, configured to execute the computer instructions to implement the following steps: receiving social information and a first block identifier; the first block identifier is used to identify a first data block; the first data block is recorded with First biometric information associated with the social information; acquiring second biometric information associated with the social information; sending the second biometric information and the first block identifier to a blockchain server In order to record the second biometric information on the second data block; the second data block and the first data block are adjacent in the blockchain.