WO2018112942A1 - Device authentication method, apparatus, electronic device and slave device - Google Patents

Abstract

A device authentication method, apparatus (900, 1000), electronic device and slave device (200). The method comprises: sending an authentication enable signal to a first target slave (200), to enable the first target slave device (200) to change identification information thereof from first identification information to second identification information (201); and sending, on the basis of the second identification information, first specific identification information to the first target slave device (200), to enable the first target slave device (200) to change the identification information thereof from the second identification information to the first specific identification information (202). The device authentication method, apparatus (900, 1000), electronic device and slave device (200) achieve highly efficient authentication of a slave device connected to a master device. The master device (100) can authorize the cascaded slave device (200) via a connection interface, uses a small number of pins, and has a high authentication efficiency.

Description

Device authentication method, device, electronic device and slave device Technical field

The present disclosure relates to the field of information technology, and in particular, to a device authentication method, apparatus, electronic device, and slave device.

Background technique

At present, the concept of cascading of electronic devices is maturing. The cascading of electronic devices, that is, the external connection of multiple devices of electronic devices, is structurally superimposed. For example, for a mobile phone, it can be connected to an external battery back clip through a universal serial bus (USB) interface of the mobile phone, and a speaker is connected to the battery back clip to realize cascading of the device.

In addition, in the industrial field, there are more and more applications of cascading, for example, a control board is connected to multiple daughter boards.

The cascading of devices can be realized by physical connection, connection lines, and the like. However, in order to ensure the normal operation of the cascaded slave devices, the master device needs to authenticate (or refer to, identify, authenticate, or register) each slave device.

The master device authenticates the slave device and needs to combine the connection mode between the slave device and the master device. In the related art, each slave device is required to be connected to a connector of the master device, and the master device separately authenticates the slave device connected thereto. Thereby, the size of the connector used for the cascade of the master device is large and costly. However, in a field such as consumer electronics, the main device needs to be light and small, and the connector used in the cascading must have a size limitation. Therefore, the authentication mechanism in the related art has drawbacks.

Summary of the invention

In order to overcome the problems in the related art, the present disclosure provides a device authentication method and device. Set, electronic equipment and slave equipment.

The first aspect provides a device authentication method, which is applied to a master device, where the method includes:

Sending an authentication enable signal to the first target slave device, where the authentication enable signal indicates that the first target slave device changes its own identification information from the first identifier information to the second identifier information;

Transmitting, according to the second identifier information, the first specific identifier information to the first target slave device, where the first specific identifier information indicates that the first target slave device changes its own identifier information from the second identifier information to The first specific identification information.

A second aspect provides a device authentication method, which is applied to a slave device, where the method includes:

Receiving the authentication enable signal sent by the master device or other slave devices, changing the identity information of the user from the first identifier information to the second identifier information;

Upon receiving the specific identification information sent by the master device, the identity information is changed from the second identifier information to the specific identifier information.

In a third aspect, a device authentication apparatus is provided for use in a master device, the device comprising:

An authentication enable signal sending module configured to send an authentication enable signal to the first target slave device, the authentication enable signal instructing the first target slave device to change its own identification information from the first identification information to Second identification information;

The first identifier information sending module is configured to send first specific identifier information to the first target slave device according to the second identifier information, where the first specific identifier information indicates that the first target slave device sets itself The identification information is changed from the second identification information to the first specific identification information.

A fourth aspect provides a device authentication apparatus, which is applied to a slave device, where the device includes:

The first change module is configured to receive the authentication enable signal sent by the master device or other slave devices, and then change the own identity information from the first identifier information to the second identifier information;

The second change module is configured to receive the specific identification information sent by the master device, and then change the own identity information from the second identifier information to the specific identifier information.

In a fifth aspect, an electronic device is provided, including:

processor;

a memory for storing processor executable instructions;

The processor is configured to send an authentication enable signal to the first target slave device, where the authentication enable signal instructs the first target slave device to change its own identification information from the first identification information to the second And identifying, according to the second identifier information, first specific identifier information, where the first target identifier information indicates that the first target slave device sets its own identifier information from the second identifier. The information is changed to the first specific identification information.

In a sixth aspect, a computer program product is provided, the computer program product comprising a computer program executable by a programmable device, the computer program having, when executed by the programmable device, for performing the application to the main The code portion of the device's device authentication method.

A seventh aspect, a non-transitory computer readable storage medium comprising one or more programs for performing the above-described application to a host device Device authentication method.

In an eighth aspect, an electronic device is provided, including:

a non-transitory computer readable storage medium of the above seventh aspect;

One or more processors for executing a program in the non-transitory computer readable storage medium.

In a ninth aspect, a slave device is provided, comprising:

processor;

a memory for storing processor executable instructions;

The processor is configured to receive the authentication enable signal sent by the master device or other slave devices, and then change the identity information of the user from the first identifier information to the second identifier information; and receive the specific information sent by the master device. The identification information changes its own identification information from the second identification information to the specific identification information.

In a tenth aspect, a computer program product is provided, the computer program product comprising A computer program executed by a programmable device, the computer program having code portions for performing the above-described device authentication method applied to the slave device when executed by the programmable device.

In an eleventh aspect, a non-transitory computer readable storage medium is provided, the non-transitory computer readable storage medium comprising one or more programs for performing the above application to a slave device Device authentication method.

According to a twelfth aspect, a slave device is provided, including:

a non-transitory computer readable storage medium of the above eleventh aspect;

One or more processors for executing a program in the non-transitory computer readable storage medium.

The present disclosure can implement efficient authentication of the slave device connected to the master device, and the master device can authenticate the cascade slave device through a connection interface, adopting a small number of pins, and the authentication efficiency is high.

Other features and advantages of the present disclosure will be described in detail in the detailed description which follows.

DRAWINGS

The accompanying drawings, which are incorporated in the specification

1 is a schematic diagram of connection between a master device and a slave device according to an embodiment of the present disclosure;

2 is a schematic flowchart of a device authentication method according to an embodiment of the present disclosure;

3 is a schematic diagram of a format in which a master device transmits information through a parallel bus according to an embodiment of the present disclosure;

4 is a schematic diagram of an authentication process of a primary device to a first target slave device connected to itself according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of an authentication process for a second target slave device according to an embodiment of the present disclosure; FIG.

6 is a schematic diagram of an authentication process for an nth target slave device according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a flow of determining whether a slave device is authenticated by a master device according to an embodiment of the present disclosure; Figure

8 is a schematic diagram of a master device connected to a slave device through an I2C bus and a GPIO according to an embodiment of the present disclosure;

9 is a block diagram of a device authentication apparatus according to an embodiment of the present disclosure;

FIG. 10 is a block diagram of a device authentication apparatus according to another embodiment of the present disclosure; FIG.

FIG. 11 is a block diagram of an apparatus for a device authentication method, according to an exemplary embodiment.

detailed description

The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are not to be construed

Referring to FIG. 1 , it is a schematic diagram of a connection between a master device and a slave device according to an embodiment of the present disclosure. In an embodiment of the present disclosure, the master device 100 is a control board, and the slave device 200 is a daughter board. In another example, the master device 100 is a central processing unit (CPU) of the electronic device, and the slave device 200 is a functional module connected to the electronic device, for example, an energy storage module, a projection module, a shooting module, and the like.

In an embodiment of the present disclosure, the master device 100 authenticates the slave device 200 and assigns it a unique identification information, so that the master device 100 and the slave device 200 can correctly perform data and instruction interaction.

Referring to FIG. 1, the master device 100 includes a first connection interface. The slave device 200 includes a second connection interface. The first connection interface and the second connection interface may be various B2B connector (Board to Board Connector), Zero Insert Force (ZIF) connectors or other forms of connectors. Thereby, the connection of the master device 100 and the slave device 200 can be realized by the first connection interface and the second connection interface.

The connection between the slave device 200 and the other slave devices can also be connected through the above-mentioned B2B connector (Board to Board Connector) or Zero Insert Force (ZIF) connector.

In an embodiment of the present disclosure, the pins of the connector include at least: a parallel bus pin and an enable signal pin. Parallel bus pins are used to enable communication between the master and each slave. In one embodiment, the parallel bus pins of each slave device are connected to the parallel bus pins of the master device. The enable signal pin is used for communication between two devices, for example, communication between the master device 1 and the slave device 1, slave device 2, slave device 2, and slave device 3.

Therefore, the master device in the embodiment of the present disclosure only needs to include one connection interface, so as to be connected to multiple slave devices.

In some embodiments, the master device and the slave device may also be connected by wireless, for example, NFC (Near Field Communication), Bluetooth, WIFI (Wireless-Fidelity), and the like.

Hereinafter, the process of authenticating the slave device by the master device of the embodiment of the present disclosure will be described in detail.

In an embodiment of the present disclosure, each slave device has three types of identification information: first identification information, second identification information, and specific identification information. Wherein, when the slave device is not authenticated and the authentication enable signal is not received, the identifier information is the first identifier information; when the slave device is not authenticated, but receives the authentication enable signal, the identifier information is obtained from the first The identification information is changed to the second identification information; after the slave device is authenticated, the self-identification information is changed from the second identification information to the specific identification information.

The first identification information, the second identification information, and the specific identification information may be address information, for example, I2C (Inter-Integrated Circuit) address information, IP address (Internet Protocol Address) information, and the like. The first identification information, the second identification information, and the specific identification information may also be a binary string of a preset length or the like for implementing the identified information.

In an embodiment of the present disclosure, the first identification information is the same for each slave device; the second identification information is the same for each slave device. And the specific identification information of each slave device is not Similarly, the master device assigns different specific identification information to each authenticated slave device. For example, if the parallel bus used for communication between the master device and the slave device is an I2C (Inter-Integrated Circuit) bus, the identification information may be represented by a 7-bit binary number, and the first identifier information may be set to 0000001, and the second identifier information may be Set to 0000010, and the specific identification information of each slave device can be uniquely selected from binary numbers other than 0000001 and 0000010.

Therefore, after the slave device is authenticated, each slave device has different specific identifier information, and the master device may perform control command or data transmission according to the specific identifier information, and may also distinguish the received data according to the specific identifier information. Which slave device is from.

2 is a schematic flowchart of a device authentication method according to an embodiment of the present disclosure.

In step 201, the master device sends an authentication enable signal to the first target slave device, and the authentication enable signal indicates that the first target slave device changes its own identity information from the first identifier information to the second identifier information.

In an embodiment of the present disclosure, when detecting that the first target slave device is connected to the master device, or receiving an authentication start instruction or the like, the master device starts authenticating the first target slave device connected thereto.

In step 202, the master device sends the first specific identifier information to the first target slave device according to the second identifier information, where the first target identifier information indicates that the first target slave device changes its own identifier information from the second identifier information to the first identifier. A specific identification information.

In an embodiment of the present disclosure, after the primary device sends the authentication enable signal, the master device sends the first specific identifier information according to the second identifier information. Since the first target slave device has changed the first identifier information to the second identifier information, the first target slave device can receive the first specific identifier information, and change the own identifier information from the second identifier information to the first identifier. Specific identification information to complete the certification.

In an embodiment of the present disclosure, after the first specific identifier information is sent, the master device sends the confirmation information to the first target slave device according to the first specific identifier information; When the first target receives the response information from the device, it is determined that the identification information of the first target slave device has been changed to the first specific identifier information, that is, the first target slave device is successfully authenticated.

In an embodiment of the present disclosure, in order to save the connection interface of the master device, the slave device adopts a cascade connection manner, and after the first target slave device connected to the master device is authenticated, the first target slave device is connected to the first device. The second target sends an authentication enable signal from the device, so that the master device can authenticate the second target slave device. When the second target receives the authentication enable signal from the device, the identity information is changed from the first identification information to the second identification information. When the primary device sends the second specific identification information (specific identification information different from the first specific identification information) according to the second identification information, since the identification information of the second target secondary device is the second identification information, it may receive the first Second, the specific identification information is changed, and the identification information of the user is changed to the second specific identification information to implement the authentication.

Similarly, the master device may send the confirmation information by using the second specific identifier information to determine whether the authentication of the second target slave device is successful according to whether the response information is received.

It should be understood that when the third target slave device connected to the second target slave device needs to be authenticated, similar to the authentication process of the second target slave device, the authentication is enabled by the second target slave device to the third target slave device. The signal, the master device still performs the step of transmitting the specific identifier information according to the second identifier information, so that the third target slave device can be authenticated.

In an embodiment of the present disclosure, the master device sends the third specific identifier information according to the second identifier information according to the first preset time interval, and sends the acknowledgement according to the third feature identifier information according to the second preset time interval. After the confirmation message is sent, if the response time is exceeded, and the response information is not received, the authentication ends, that is, all the slave device authentication is completed.

It should be understood that, in the embodiment of the present disclosure, if the master device and the slave device are connected by wireless, the master device sends the authentication enable signal and the specific identifier information, and the slave device sends the authentication enable signal and the like to be wirelessly transmitted. . The following embodiments will be described in detail if they are connected by wire.

The device authentication method of the embodiment of the present disclosure, the master device can implement the slave device connected to the master device Efficient authentication is performed, and the master device can authenticate the cascaded slave device through a connection interface, and the authentication efficiency is high.

Referring to FIG. 3, in an embodiment of the present disclosure, a master device is respectively connected to each slave device through a parallel bus, and the master device is connected to a slave device through an enable signal interface, and the remaining slave devices pass an enable signal interface. connection.

When the master device transmits information through the parallel bus, the information format includes: identification information, communication type and data portion, or the information format includes: identification information and communication type.

The identifier information is the first identifier information, the second identifier information, or the specific identifier information of the slave device described above. Identification information for defining a slave device that can receive information transmitted by the master device through the parallel bus. That is, when the master device transmits information through the parallel bus, the slave device whose identification information is the same as the identifier information in the information sent by the master device can receive the information sent by the master device.

The communication type includes reading or writing. If the communication type is read, the slave device transmits the relevant data to the parallel bus so that the master device can receive the related data transmitted from the device. When the communication type is read, the information format sent by the master device includes the address information and the communication type. If the communication type is write, the slave device receives data of the data portion of the information transmitted by the master device.

Referring to FIG. 4-7, in an embodiment of the present disclosure, the authentication process of the master device to the cascaded slave device includes:

In step 401, the master device transmits an authentication enable signal to the first target slave device connected to the master device via the enable signal pin.

In an embodiment of the present disclosure, when the entire system is in an initial state, that is, all the slave devices are not authenticated, the identifier information of all the slave devices is the first identifier information. The master device authenticates from the first target slave device to which it is connected.

The authentication enable signal sent by the master device through the enable signal pin can be a low level signal, a binary signal, or the like.

In one embodiment, the master device may send a certificate when it detects that a slave device is connected thereto. The enable signal is sent, or an authentication enable signal is sent upon receipt of an authentication command (eg, an authentication command entered by the user).

In step 402, the first target slave device receives the authentication enable signal, and then changes the identifier information from the first identifier information to the second identifier information.

In step 403, the master device sends the authentication information through the parallel bus. The identifier information in the authentication information is the second identifier information, the communication type is write, and the data portion includes the first specific identifier information. The first identification information is identification information that is allocated by the primary device to the first target secondary device.

Since only the first target slave device receives the authentication enable information sent by the master device, only the first target slave device changes the identifier information to the second identifier information, that is, only the first slave device can accept the authentication information.

In an embodiment of the present disclosure, after transmitting the authentication enable signal, the master device may send the authentication information at a preset time interval.

In step 404, after receiving the authentication information, the first target device parses the received information and changes its own identification information to the first specific identification information.

In step 405, the master device sends the confirmation information through the parallel bus, and the identification information included in the confirmation information is the first specific identification information, and the communication type is read.

In an embodiment of the present disclosure, the confirmation information is used to confirm whether the identification information of the first target slave device has been changed to the first specific identification information. The data format of the confirmation information can be an empty data packet that does not contain data.

In an embodiment of the present disclosure, the master device may send the confirmation information at intervals after the authentication information is sent.

In step 406, the first target receives the acknowledgment information from the device, and then sends the response message to the parallel bus.

In an embodiment of the present disclosure, the confirmation information is a change for confirming whether the first target slave device has completed the identification information. If the first target slave device completes the identification information change, its identifier The information is the first specific identification information, which is the same as the identification information of the confirmation information transmitted by the master device through the parallel bus, and therefore, the first target slave device can receive the confirmation information. When the first target receives the confirmation information from the device, the response information is transmitted through the parallel bus. After receiving the response information sent by the first target slave device, the master device determines that the first target slave device has completed the identity change, and the authentication of the first slave device is successful.

Referring to FIG. 5, in step 501, the first target slave device transmits an authentication enable signal to the second target slave device connected thereto.

In the embodiment of the present disclosure, after the first target slave device completes the authentication, the authentication process for the second target slave device is started by the first target slave device, that is, the first target slave device sends the authentication enable by enabling the authentication pin. The signal is sent to the second target slave device to which it is connected.

In step 502, the second target slave device receives the authentication enable signal, and then changes the identifier information from the first identifier information to the second identifier information.

In the embodiment of the present disclosure, after the second target slave device changes the identification information to the second identifier information, step 403 to step 406 are repeatedly performed to complete the authentication of the second target slave device, and after the second target slave device is authenticated, The identifier is changed to the second specific identification information.

By analogy, referring to FIG. 6, after the second target slave device completes the authentication, an authentication enable signal is sent to the third target slave device to start authenticating the third target slave device. After the master device completes the authentication for the nth target slave device, its address is changed to the nth specific identifier information.

Referring to FIG. 7, the last slave device, that is, the slave device n, transmits the authentication enable signal, and no subsequent slave device receives. The master device sends the authentication information by using the second identifier information. However, all the slave devices have completed registration at this time, and the identifier information of the slave device is the second identifier information. Therefore, the slave device does not receive the authentication information from the master device. The master device sends the acknowledgement information through the n+1th specific identifier information. At this time, the slave device identifier information is the n+1th specific identifier information, that is, no response information is returned to the master device, and the master device receives the timeout, thereby determining all the slave devices. The certification is completed.

In an embodiment of the present disclosure, in order to improve the authentication efficiency, the master device recognizes the slave device. At the time of the certificate, verify that the function or type of the slave device is legal.

In combination with the authentication process of the foregoing embodiment, the master device may send the identification information by using the second identifier information after the first target slave device changes the identifier information from the first identifier information to the second identifier information. In one embodiment, the identification information is used to determine the type or function of the slave device. For the primary device, the type of device that it can support and identify is determined, and the device type and device ID (Identifying) can be stored correspondingly. Upon receipt of the identification information from the device, the device ID is replied via the parallel bus. After the master device obtains the device ID of the slave device, it is verified whether it is legal, that is, whether the slave device is supported. If it is legal, the step 303 and subsequent steps are continued; if not, the process ends.

In the embodiment of the present disclosure, the step of the primary device transmitting the identification information to verify the secondary device may be performed before step 403 (after step 402), may be performed after step 403, or may be performed before step 401. The disclosure does not limit this. If it is executed before step 403, the identification information is sent by the second identification information according to the above manner, and the device ID is returned after receiving the identification information from the device whose identification information is the second identification information. If it is executed after step 403, the identification information may be sent by using the specific identification information, and the identification information is the device identification information, and the device ID is returned after receiving the identification information. If the method is performed before step 401, the master device may send the identification information by using the first identifier information. Since all the addresses of the slave devices are the first identifier information, all the slave devices will reply to the device ID, and the master device is one by one. Confirm that the slave device is legal.

In an embodiment of the present disclosure, if the slave device is not legal, the prompt information may be output to prompt the user to remove the illegal slave device or replace the slave device.

In the slave device authentication method of the embodiment of the present disclosure, the master device can implement efficient authentication of the slave device connected to the master device, and the cascading slave device can be authenticated through a connection interface, and the number of pins is used. , the certification efficiency is high.

Referring to FIG. 8, in an embodiment of the present disclosure, the parallel bus is an I2C bus, and the identification information is an I2C address. The authentication enable signal interface is a GPIO (General Purpose Input Output) interface.

In the initial state, all slave devices are not authenticated, and the I2C address is the first identifier information. The master device starts to authenticate the first slave device, first sends the authentication enable signal GPIO low level to the slave device 1, and the slave device 1 receives the authentication enable signal GPIO low level and then changes its own I2C address to the second identifier. The information is sent by the master device through the I2C bus with the second identifier information. The type is write. Since only the I2C address of the slave device 1 is the second identifier information, the other slave device I2C addresses are still the first identifier information, so only The authentication information sent by the master device is received from the device 1. Next, the received authentication information is parsed from the device 1, which will contain the first specific address information after the authentication of the master device assigned to the slave device 1, and the slave device will change its own I2C address to the first specific address information. The master device then sends the acknowledgement information using the first specific address information, the type is read. Since only the I2C address of the slave device 1 is the first specific address information, the slave device 1 sends the response message after receiving the acknowledgement information. On the parallel bus, the master device receives the response information from the slave device 1, and learns that the slave device 1 has completed the I2C address change and changed its own I2C address as the first specific address information. Then, the master device successfully authenticates the slave device 1.

Next, the master device authenticates the slave device 2. The device sends the authentication enable signal GPIO low level to the slave device 2, and the slave device 2 changes the I2C address to the second identifier information. The following procedure is the same as the master device authentication slave device 1, and is not described again. The slave device 2's I2C address is changed to the second specific address information.

By analogy, the master device authenticates the last slave device and changes its I2C address to the nth specific address information.

Slave n will continue to send the authentication enable signal GPIO low, but no subsequent slaves receive it. The master device still sends the authentication information through the second identifier information, but at this time all the slave devices have completed registration, and the slave device I2C address is not the second identifier information, so no slave device will receive the registration information from the master device. Then, the master device sends an acknowledgement message through the n+1th address information of the I2C address. At this time, the slave device I2C address is not the n+1th specific address information, that is, no response information is returned to the master device, and the master device receives the timeout, thereby Determine that all slave devices have been authenticated.

In some embodiments, the parallel bus may also be a CAN (Controller Area Network) bus or the like. The enable signal interface may also be other types of interfaces, which is not limited in this disclosure.

Referring to FIG. 9 , correspondingly, an embodiment of the present disclosure further provides a device authentication apparatus, which is applied to a master device. The device 900 includes:

The authentication enable signal sending module 901 is configured to send an authentication enable signal to the first target slave device, so that the first target slave device changes its own identity information from the first identifier information to the second identifier information. ;

The first identifier information sending module 902 is configured to send the first specific identifier information to the first target slave device according to the second identifier information, so that the first target slave device sets its own identifier information from the first The two identification information is changed to the first specific identification information.

In one embodiment, the apparatus 900 further includes:

The first confirmation information sending module 903 is configured to send the confirmation information to the first target slave device according to the first specific identifier information;

The determining module 904 is configured to determine that the identifier information of the first target slave device has been changed to the first specific identifier information when receiving the response information sent by the first target slave device.

In one embodiment, the apparatus 900 further includes:

The second identifier information sending module 905 is configured to send second specific identifier information according to the second identifier information, so that the second target slave device that receives the second specific identifier information sets its own identifier information from the second identifier information Changing the second identification information to the second specific identification information;

The second target slave device changes the identity information of the user from the first identifier information to the second identifier according to the authentication enable signal sent by the first target device before receiving the second specific identifier information. Information from the device.

In one embodiment, the master device is connected to the first target slave device through a first enable signal interface;

The authentication enable signal sending module 901 is configured to send an authentication enable signal to the first target slave device through the first enable signal interface.

In one embodiment, the master device is further connected to the first target slave device through a parallel bus;

The first identifier information sending module 902 is configured to send the first specific identifier information to the first target slave device through the parallel bus according to the second identifier information.

In one embodiment, the master device is connected to the second target slave device through the parallel bus;

The second identifier information sending module 905 is configured to send the second specific identifier information to the first target slave device by using the parallel bus according to the second identifier information.

In one embodiment, the apparatus 900 further includes:

The third specific identifier information sending module 906 is configured to send the third specific identifier information according to the second identifier information according to the first preset time interval;

The second confirmation information sending module 907 is configured to send the confirmation information according to the third feature identification information according to the second preset time interval;

The end confirmation module 908 is configured to, after transmitting the confirmation information, exceed the preset time, and the response information is not received, the authentication ends.

In one embodiment, the apparatus 900 further includes:

The identification information sending module 909 is configured to send the identification information to the first target slave device;

The device ID receiving module 910 is configured to receive the device ID returned by the first target slave device;

The legality determining module 911 is configured to determine, according to the device ID, whether the first target slave device is a legitimate device.

Referring to FIG. 10, the corresponding embodiment of the present disclosure further provides a device authentication apparatus, which is applied to a slave device, and the device 1000 includes:

The first change module 1001 is configured to receive the authentication enable signal sent by the master device or other slave devices, and then change the own identity information from the first identifier information to the second identifier information;

The second change module 1002 is configured to receive the specific identification information sent by the master device, and then change the own identity information from the second identifier information to the specific identifier information.

In one embodiment, the apparatus 1000 further includes:

The response information sending module 1003 is configured to receive the confirmation information sent by the master device, and then send the response information.

In one embodiment, the slave device is coupled to the master device or other slave device via an enable signal interface to receive an authentication enable signal transmitted by the master device or other slave device via the enable signal interface.

In one embodiment, the slave device is connected to the master device via a parallel bus to receive specific identification information transmitted by the master device over the parallel bus.

With regard to the apparatus in the above embodiments, the specific manner in which the respective modules perform the operations has been described in detail in the embodiment relating to the method, and will not be explained in detail herein.

FIG. 11 is a block diagram of an apparatus 1100 for a device authentication method, which may be an electronic device, which may be a motherboard or a CPU of an electronic device, according to an exemplary embodiment. As shown, the apparatus 1100 can include a processor 1101, a memory 1102, a multimedia component 1103, an input/output (I/O) interface 1104, and a communication component 1105.

The processor 1101 is configured to control the overall operation of the device 1100 to complete all or part of the steps of the device authentication method applied to the primary device. The memory 1102 is for storing operating systems, various types of data to support operations at the device 1100, such as instructions for any application or method for operation on the device 1100, and application-related data. The memory 1102 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read only memory ( Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read Only Memory ( Read-Only Memory (ROM), magnetic memory, flash memory, disk or optical disk.

The multimedia component 1103 can include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and/or input an audio signal. For example, the audio component can include a microphone for receiving an external audio signal. The received audio signal may be further stored in memory 1102 or transmitted via communication component 1105. The audio component also includes at least one speaker for outputting an audio signal. The I/O interface 1104 provides an interface between the processor 1101 and other interface modules. The other interface modules may be keyboards, mice, buttons, and the like. These buttons can be virtual buttons or physical buttons. Communication component 1105 is used for wired or wireless communication between the device 1100 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so the corresponding communication component 1105 can include: Wi-Fi module, Bluetooth module, NFC module.

In an exemplary embodiment, the device 1100 may be configured by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), and digital signal processing devices (Digital Signal Processors). Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), controller, microcontroller, microprocessor or other electronic components And for performing the above device authentication method applied to the master device.

In another exemplary embodiment, there is also provided a computer program product comprising a computer program executable by a programmable device, the computer program having when executed by the programmable device For performing the above device authentication method applied to the master device Code section.

In another exemplary embodiment, there is also provided a non-transitory computer readable storage medium comprising instructions, such as a memory 1102 comprising instructions executable by processor 1101 of apparatus 1100 to perform the above application to the primary Device authentication method for the device. For example, the non-transitory computer readable storage medium may be a ROM (read-only memory), a Random Access Memory (RAM), or a CD-ROM (Compact Disc read-only memory). CD-ROM, tape, floppy disk and optical data storage devices.

In an exemplary embodiment, the slave device may be configured by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), and digital signal processing devices (Digital Signal Processors). Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), controller, microcontroller, microprocessor or other electronic components And for performing the above device authentication method applied to the master and slave devices.

In another exemplary embodiment, there is also provided a computer program product comprising a computer program executable by a programmable device, the computer program having when executed by the programmable device A code portion for performing the above-described device authentication method applied to a slave device.

In another exemplary embodiment, there is also provided a non-transitory computer readable storage medium comprising instructions, such as a memory comprising instructions executable by a processor of a slave device to perform the above-described application to a slave device Device authentication method. By way of example, the non-transitory computer readable storage medium can be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.

Any process or method description in the flowcharts or otherwise described in the embodiments of the invention may be understood to include the inclusion of one or more elements for implementing a particular logical function or process. A module, segment or portion of code of an executable instruction of a step, and the scope of the embodiments of the invention includes additional implementations, which may not be in the order shown or discussed, including in a substantially simultaneous manner depending on the function involved or The functions are performed in the reverse order, which should be understood by those skilled in the art to which the embodiments of the invention are.

Other embodiments of the invention will be apparent to those skilled in the <RTIgt; The present application is intended to cover any variations, uses, or adaptations of the present invention, which are in accordance with the general principles of the present invention and include common general knowledge or conventional technical means in the art that are not disclosed in the present invention. . The specification and examples are to be considered as illustrative only,

It is to be understood that the invention is not limited to the details of the details of The scope of the invention is limited only by the appended claims.

Claims (24)

A device authentication method is applied to a master device, where the method includes: Sending an authentication enable signal to the first target slave device, where the authentication enable signal indicates that the first target slave device changes its own identification information from the first identifier information to the second identifier information; Transmitting, according to the second identifier information, the first specific identifier information to the first target slave device, where the first specific identifier information indicates that the first target slave device changes its own identifier information from the second identifier information to The first specific identification information. The method of claim 1 further comprising: Sending confirmation information to the first target slave device according to the first specific identifier information; When receiving the response information sent by the first target slave device, determining that the identifier information of the first target slave device has been changed to the first specific identifier information. The method according to claim 1 or 2, wherein the method further comprises: Transmitting, according to the second identifier information, second specific identifier information, where the second specific identifier information indicates that the second target slave device changes its own identifier information from the second identifier information to the second identifier information; The second target slave device changes the identity information of the user from the first identifier information to the second identifier according to the authentication enable signal sent by the first target device before receiving the second specific identifier information. Information from the device. The method according to claim 3, wherein the master device is connected to the first target slave device through a first enable signal interface; The step of sending an authentication enable signal to the first target slave device includes: Sending an authentication enable message to the first target slave device through the first enable signal interface number. The method of claim 1 further comprising: Transmitting the third specific identifier information according to the second identifier information according to the first preset time interval; And sending, according to the third feature identification information, the confirmation information according to the second preset time interval; After the confirmation information is sent, if the response time is exceeded after the preset time is exceeded, the authentication ends. The method of claim 1 further comprising: Sending identification information to the first target slave device; Receiving the device ID returned by the first target slave device; Determining, according to the device ID, whether the first target slave device is a legitimate device. A device authentication method is applied to a slave device, and the method includes: Receiving the authentication enable signal sent by the master device or other slave devices, changing the identity information of the user from the first identifier information to the second identifier information; Upon receiving the specific identification information sent by the master device, the identity information is changed from the second identifier information to the specific identifier information. The method of claim 7, wherein the method further comprises: After receiving the confirmation message sent by the master device, the response message is sent. The method of claim 7 wherein said slave device is coupled to said master device or other slave device via an enable signal interface to receive said said signal through said enable signal interface The authentication enable signal sent by the master device or other slave devices. A device authentication device is applied to a master device, and the device includes: An authentication enable signal sending module configured to send an authentication enable signal to the first target slave device, the authentication enable signal instructing the first target slave device to change its own identification information from the first identification information to Second identification information; The first identifier information sending module is configured to send first specific identifier information to the first target slave device according to the second identifier information, where the first specific identifier information indicates that the first target slave device sets itself The identification information is changed from the second identification information to the first specific identification information. The device according to claim 10, wherein the device further comprises: The first confirmation information sending module is configured to send the confirmation information to the first target slave device according to the first specific identifier information; And a determining module, configured to: when receiving the response information sent by the first target slave device, determining that the identifier information of the first target slave device has been changed to the first specific identifier information. The device according to claim 10 or 11, wherein the device further comprises: The second identifier information sending module is configured to send the second specific identifier information according to the second identifier information, where the second specific identifier information indicates that the second target slave device changes its own identifier information from the second identifier information to The second specific identification information; The second target slave device changes the identity information of the user from the first identifier information to the second identifier according to the authentication enable signal sent by the first target device before receiving the second specific identifier information. Information from the device. The apparatus according to claim 12, wherein said master device passes the first An enable signal interface is connected to the first target slave device; The authentication enable signal sending module is configured to send an authentication enable signal to the first target slave device through the first enable signal interface. The device according to claim 10, wherein the device further comprises: The third specific identifier information sending module is configured to send the third specific identifier information according to the second identifier information according to the first preset time interval; The second confirmation information sending module is configured to send the confirmation information according to the third feature identification information according to the second preset time interval; The end confirmation module is configured to, when the confirmation information is sent, exceeds the preset time, and the response information is not received, the authentication ends. The device according to claim 10, wherein the device further comprises: An identification information sending module configured to send the identification information to the first target slave device; a device ID receiving module configured to receive the device ID returned by the first target slave device; The legality determining module is configured to determine, according to the device ID, whether the first target slave device is a legitimate device. A device authentication device is applied to a slave device, characterized in that the device comprises: The first change module is configured to receive the authentication enable signal sent by the master device or other slave devices, and then change the own identity information from the first identifier information to the second identifier information; The second change module is configured to receive the specific identification information sent by the master device, and then change the own identity information from the second identifier information to the specific identifier information. The device according to claim 16, wherein the device further comprises: The response information sending module is configured to receive the confirmation information sent by the master device, and then send the response information. The apparatus according to claim 16, wherein said slave device is connected to said master device or other slave device through an enable signal interface to receive said master device or other slave device through said enable signal interface The authentication enable signal sent. A computer program product, comprising: a computer program executable by a programmable device, the computer program having when executed by the programmable device for performing claims 1 to 6 The code portion of the method of any of the preceding claims. A non-transitory computer readable storage medium, comprising: one or more programs in the non-transitory computer readable storage medium, the one or more programs for performing any of claims 1 to 6 One of the methods described. An electronic device, comprising: The non-transitory computer readable storage medium of claim 20; One or more processors for executing a program in the non-transitory computer readable storage medium. A computer program product, comprising: a computer program executable by a programmable device, the computer program having when executed by the programmable device for performing claims 7-9 The code portion of the method of any of the preceding claims. Non-transitory computer readable storage medium characterized in that said non-transitory The computer readable storage medium includes one or more programs for performing the method of any one of claims 7 to 9. A slave device, comprising: The non-transitory computer readable storage medium of claim 23; One or more processors for executing a program in the non-transitory computer readable storage medium.

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