WO2016172963A1

WO2016172963A1 - P2p group discovery method, related device and p2p group

Info

Publication number: WO2016172963A1
Application number: PCT/CN2015/078108
Authority: WO
Inventors: 庞高昆; 方平
Original assignee: 华为技术有限公司
Priority date: 2015-04-30
Filing date: 2015-04-30
Publication date: 2016-11-03
Also published as: CN106664328A; CN106664328B

Abstract

The present invention relates to the technical field of communications. Provided in embodiments of the present invention are a P2P group discovery method, related device and P2P group, the method comprising: determining, by a client device at a client device side, whether a GO device is required to protect device information of the client device; transmitting to the GO device a client device information protection instruction; acquiring, by the GO device at a GO device side, the client device information protection instruction; receiving a P2P query message transmitted by a P2P device; and determining, according to the acquired client device information protection instruction, whether to carry the client device information in a response message to be transmitted to the P2P device, and transmitting the response message to the P2P device. The present invention improves device information security of the client device.

Description

Method for discovering P2P group, related equipment and P2P group

Technical field

The present invention relates to the field of communications technologies, and in particular, to a P2P group discovery method, related device, and P2P group.

Background technique

Wi-Fi (Wireless Fidelity) has been formed by Wi-Fi, a leading company in the industry since the release of 802.11, the IEEE, Institute of Electrical and Electronics Engineers (IEEE) in 1997. Under the strong promotion of the alliance, it has developed rapidly due to its rapid deployment, convenient use and high transmission rate.

In the prior art, not only mobile phones, tablets, and laptops use Wi-Fi, but the wearable device product forms include wrist-supported watches (including watches and wristbands), and foot-supported shoes (including Shoes, socks or other products worn on the legs in the future), head-supported Glass (including glasses, helmets, headbands, etc.), as well as smart clothing, school bags, crutches, accessories, necklaces and other non-mainstream products. Wi-Fi can be used. For example, wearable devices can form a wifi group to connect people to the Internet more closely. However, wearable devices involve more personal privacy, so the protection of personal privacy will be more challenged.

Wi-Fi devices typically identify themselves by an identifier, typically a Media Access Control (MAC) address, also known as a hardware address. The MAC address is a globally unique address, that is, each Wi-Fi device recognizes each other through a globally unique MAC address when interacting with other Wi-Fi devices. Further, the P2P (Peer to Peer) group working group in the Wi-Fi Alliance (WFA, Wi-Fi Alliance) has developed a P2P specification, which stipulates the process of grouping P2P devices through Wi-Fi. One of the groups in the group is called a group (GO, Group Owner) device, and the other devices in the group are called client devices. Figure 1 is a flow chart of P2P group A (assumed to be a mobile phone) and P2P device B (assumed to be a glasses) to form a P2P group. As shown in Figure 1, the P2P group is organized as follows: step:

S101, P2P device A, and P2P device B discover each other through the P2P scanning discovery mechanism.

S102. The P2P device A and the P2P device B perform GO negotiation, and determine, as the GO device, the device as the GO and the device as the client in the P2P device A and the P2P device B according to the negotiation result. It is assumed that the P2P device A is determined to be the GO device in the P2P group, and the P2P device B is determined to be the client device in the P2P group.

S103, P2P device A and P2P device B perform an initial authentication interaction.

S104. The P2P device A and the P2P device B exchange WPS configuration information.

S105, P2P device A and P2P device B perform a four-way handshake to establish a secure connection.

To step S105, the P2P device A and the P2P device B complete the establishment of the P2P group. After the step S105, the P2P device A and the P2P device B can exchange the service data between the two.

Then, the devices that want to join the P2P group are added as the role of the client. Assuming P2P device C (assumed to be a bracelet) to join the P2P group, the next steps are performed:

S106. The P2P device C sends a P2P probe request to discover the P2P group.

S107. The GO device (P2P device A) in the P2P group listens to the P2P probe request, and returns a P2P probe response to the P2P device C.

S108, P2P device A and P2P device C perform an initial authentication interaction.

S109, P2P device A and P2P device C exchange WPS configuration information.

S110, P2P device A and P2P device C perform a four-way handshake to establish a secure connection.

After step S110, the P2P device A and the P2P device C can exchange the service data between the two.

However, the discovery process between the P2P devices defined by the specifications in the prior art, that is, the defined in-band discovery process, is that the P2P device that has not joined the P2P group discovers the client device that has joined the P2P group and receives the client device. The probe response message sent by the GO device of the P2P group. In the process of the discovery, the client device that has joined the P2P group associates with the GO device of the P2P group (for example, P2P device A). And P2P devices B can be associated with the GO device by step S101 to step S105. Then, the client information is notified to the GO device (for example, the P2P device A and the P2P device B can send their own information to the other party through steps S101 to S102). When the GO device sends a probe response to a P2P device that is not connected to the P2P group, the GO device will information about all client devices that have been associated with itself (for example, the MAC address, device type, and serial number of all client devices that have been associated with the GO device. Etc.) is sent to a P2P device that is not joined to the P2P group. That is, in the process of the discovery, the GO device leaks information of all client devices that have been associated with itself to the P2P device that is not joined to the P2P group, causing information leakage of the client device, if the hacker obtains information of the client device. (For example, the MAC address of the client device) may use the information of the client device to track the user who uses the client device, etc., resulting in the privacy leakage of the user who uses the client device.

In the prior art, in order to protect the information of the client device from being leaked, the GO device sets a changed temporary MAC address for each client device that has been associated with itself, and then, when the GO device sends a probe to the P2P device that is not connected to the P2P group, In response, the GO device transmits information of all client devices that have been associated with itself, including: a fixed MAC address, a temporary MAC address, a device type, a serial number, and the like of all client devices that have been associated with the GO device to the P2P that is not joined. Group of P2P devices. It can be seen that the hacker can still obtain the fixed MAC address of the client device by using the scheme of setting the temporary MAC address for the client device. Therefore, the information of the client device cannot be guaranteed to be leaked.

Summary of the invention

The embodiment of the present invention provides a P2P group discovery method, a related device, and a P2P group, which are used to improve the security of device information of a client device in a P2P group.

In a first aspect, a method for discovering a P2P group is provided, including:

The GO device obtains an information protection indication of the client device;

The client device and the GO device belong to the P2P group, and the information protection indication is used to indicate whether the GO device needs to protect the device information of the client device.

Receiving, by the GO device, a P2P query message sent by the P2P device;

Determining, according to the obtained information protection indication of the client device, the GO device The device sends the device information of the client device to the response message sent by the P2P device;

The GO device sends the response message to the P2P device.

With reference to the first aspect, in a first possible implementation manner, the GO device obtains the information protection indication of the client device, specifically: the GO device receives the information before the GO device establishes a secure connection with the client device Information protection indication sent by the client device.

With reference to the first aspect, in a second possible implementation manner, the GO device obtains the information protection indication of the client device, specifically, after the GO device establishes a secure connection with the client device, the GO device receives the An encrypted information protection indication sent by the client device.

With reference to the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, in a third possible implementation manner, the information protection indication carries the information protection identifier information, where The information protection identifier information is used to indicate whether the client device allows the GO device to send device information of the client device to the P2P device; and according to the obtained information protection indication of the client device, determine whether the device is in the The device information of the client device is carried in the response message sent by the P2P device, and specifically includes: the information protection identifier information carried in the information protection indication of the client device indicates that the GO device allows the device information of the client device When the P2P device is sent to the P2P device, the GO device determines that the device information of the client device is carried in the response message sent to the P2P device; and the information protection identifier information carried in the information protection indication of the client device is characterized. When the GO device is not allowed to send the device information of the client device to the P2P device, the GO device determines The device information of the client device is not carried in the response message sent to the P2P device.

With reference to the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, in the fourth possible implementation manner, the information protection indication carries the information protection identifier information; The information protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to a whitelist; when the information protection identifier information represents the When the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the information protection indication further carries the whitelist; the whitelist includes the Client The identification information of the P2P device supported by the device, or the information indicating the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the P2P device supported by the client device is the client The device allows the P2P device to obtain the device information of the client.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, determining, according to the obtained information protection indication of the client device, whether to carry the response message sent to the P2P device The device information of the client device includes: a whitelist is carried in the information protection indication of the client device, and the whitelist includes the information of the P2P device, or the information protection indication of the client device is carried. When there is a whitelist, and the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist, the GO device determines that the client is carried in the response message sent to the P2P device. Device information of the device; the information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist. Or the information protection indication of the client device carries a whitelist, and the information of the P2P device is not included in the whitelist. Or when the information protection indication of the client device carries a whitelist, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist, the GO device determines that the The device information of the client device is not carried in the response message sent by the P2P device.

With reference to the first possible implementation manner of the first aspect, in a sixth possible implementation, the information protection indication carries the information protection identifier information, where the information protection identifier information is used to represent whether the client device is The GO device is configured to send the device information of the client device to the P2P device supported by the client device according to the whitelist; and the information protection identifier information carried in the information protection indication of the client device indicates that the GO device is allowed to follow the When the whitelist sends the device information of the client device to the P2P device supported by the client device, the method further includes: after the GO device establishes a secure connection with the client device, receiving the sending by the client device An encrypted whitelist, wherein the whitelist includes identification information of a P2P device supported by the client device, or information identifying identifier information of a P2P device supported by the client device, Or the P2P device supported by the client device; the P2P device supported by the client device is a P2P device that allows the client device to obtain its own device information.

With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner, determining, according to the obtained information protection indication of the client device, whether to carry the response message sent to the P2P device The device information of the client device includes: receiving the whitelist sent by the client device, and the whitelist includes the information of the P2P device, or receiving a whitelist sent by the client device, and When the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist, the GO device determines that the device information of the client device is carried in the response message sent to the P2P device; The information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, or when receiving the a whitelist sent by the client device, where the information of the P2P device is not included in the whitelist, or when the client device is received When the whitelist is sent, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist, the GO device determines that the response message sent to the P2P device is not carried. Device information of the client device.

With reference to the first aspect, in an eighth possible implementation manner, the GO device obtains the information protection indication of the client device, specifically: after the GO device establishes a secure connection with the client device, Receiving, by the corresponding interface, an information protection indication for the client device, where the information protection indication is used to indicate whether the GO device is allowed to send device information of the client device to a P2P device that is not added to the P2P group; or The information protection indication is used to indicate whether the GO device is allowed to send the device information of the client device to the P2P device supported by the client device according to a whitelist; when the information protection indication is used to indicate that the GO device is allowed to follow the white When the list sends the device information of the client device to the P2P device supported by the client device, the information protection indication further includes a whitelist set for the client device; the whitelist includes the P2P supported by the client device. Identification information of the device, or information identifying the identification information of the P2P device supported by the client device, or the client • Special support of P2P devices The P2P device supported by the client device is a P2P device that allows the client device to obtain device information of the client.

In a second aspect, a method for discovering a P2P group is provided, including:

The client device determines whether the GO device is required to protect the device information of the client device;

Sending, by the client device, an information protection indication of the client device to the GO device;

The client device and the GO device belong to the P2P group, and the information protection indication is used to indicate whether the GO device needs to protect device information of the client device, so that the GO device according to the The information protection indication of the client device is used to determine whether the device information of the client device is carried in the response message sent to the P2P device, where the P2P device is a P2P device that is not added to the P2P group.

With reference to the second aspect, in a first possible implementation, the client device sends the information protection indication of the client device to the GO device, which specifically includes:

Before the GO device establishes a secure connection with the client device, the client device sends an information protection indication of the client device to the GO device.

With reference to the second aspect, in a second possible implementation manner, the client device sends the information protection indication of the client device to the GO device, specifically: establishing a secure connection between the client device and the GO device Thereafter, the client device sends an encrypted information protection indication to the GO device.

With reference to the first possible implementation manner of the second aspect, or the second possible implementation manner of the second aspect, in the third possible implementation manner, the information protection indication carries the information protection identifier information, The information protection identifier information is used to indicate whether the client device allows the GO device to send device information of the client device to the P2P device.

With reference to the first possible implementation manner of the second aspect, or the second possible implementation manner of the second aspect, in the fourth possible implementation manner, the information protection indication carries the information protection identifier information; The information protection identifier information is used to indicate whether the client device allows the GO device to send device information of the client device to a P2P device supported by the client device according to a whitelist; when the information protection identifier information representation Said client device allows said GO set When the device information of the client device is sent to the P2P device supported by the client device according to the whitelist, the information protection indication further carries the whitelist; the whitelist includes the P2P supported by the client device. The identification information of the device, or the information indicating the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the P2P device supported by the client device allows the client device to obtain the location A P2P device that describes the device information of the client.

With reference to the first possible implementation manner of the second aspect, in a fifth possible implementation, the information protection indication carries the information protection identifier information, where the information protection identifier information is used to identify whether the client device is Allowing the GO device to send device information of the client device to the P2P device supported by the client device according to a whitelist; and when the information protection identifier information indicates that the client device allows the GO device to follow the white list After the device information of the client device is sent to the P2P device supported by the client device, after the information protection indication of the client device is sent to the GO device, the method further includes: establishing a secure connection between the GO device and the client device. The client device sends an encrypted whitelist to the GO device, where the whitelist includes the identification information of the P2P device supported by the client device or the identifier information of the P2P device supported by the client device. Information, or characteristic information of the P2P device supported by the client device; the P2P device supported by the client device is the cli An ent device allows a P2P device to obtain its own device information.

In a third aspect, a GO device in a P2P group is provided, including:

Obtaining a module, configured to obtain an information protection indication of the client device, where the client device and the GO device belong to the P2P group, and the information protection indication is used to indicate whether the GO device is required to be the client device Equipment information is protected;

a receiving module, configured to receive a P2P query message sent by the P2P device;

a determining module, configured to determine, according to the information protection indication of the client device obtained by the obtaining module, whether the device information of the client device is carried in a response message sent to the P2P device;

And a sending module, configured to send the response message to the P2P device.

With reference to the third aspect, in a first possible implementation, the obtaining module is configured to receive an information protection indication sent by the client device before the GO device establishes a secure connection with the client device.

With reference to the third aspect, in a second possible implementation manner, the obtaining module is configured to: after the GO device establishes a secure connection with the client device, receive an encrypted information protection indication sent by the client device .

With reference to the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, in the third possible implementation manner, the information protection indication carries the information protection identifier information, The information protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the P2P device. The determining module is specifically configured to protect information of the client device. The information protection identifier information carried in the indication is configured to allow the GO device to send the device information of the client device to the P2P device, and determine that the device information of the client device is carried in the response message sent to the P2P device. And determining, when the information protection indication information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device, determining a response sent to the P2P device The device information of the client device is not carried in the message.

With reference to the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, in the fourth possible implementation manner, the information protection indication carries the information protection identifier information; The information protection identifier information is used to indicate whether the client device allows the GO device to send device information of the client device to a P2P device supported by the client device according to a whitelist; when the information protection identifier information representation When the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the information protection indication further carries the whitelist; the whitelist includes The information of the P2P device supported by the client device, or the information indicating the identity information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the P2P device supported by the client device is The client device allows a P2P device to obtain device information of the client.

With reference to the fourth possible implementation manner of the third aspect, in a fifth possible implementation, the determining module is configured to: when the information protection indication of the client device carries a white list, and the white The information includes the information of the P2P device, or the information protection indication of the client device carries a whitelist, and the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist. Determining that the device information of the client device is carried in the response message sent to the P2P device; and the information protection identifier information carried in the information protection indication of the client device does not allow the GO device to follow the white list. The device information of the client device is sent to the P2P device supported by the client device, or the information protection indication of the client device carries a whitelist, and the whitelist does not include the information of the P2P device, or the The information protection indication of the client device carries a whitelist, and the P2P device does not meet the P2 supported by the client device included in the whitelist. When the feature information of the P device is determined, it is determined that the device information of the client device is not carried in the response message sent to the P2P device.

With reference to the first possible implementation manner of the third aspect, in a sixth possible implementation, the information protection indication carries the information protection identifier information, where the information protection identifier information is used to represent whether the client device is Allowing the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist; the receiving module is further configured to: when the information protection indication of the client device is carried in the information protection indication The information representation allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, and after the GO device establishes a secure connection with the client device, the client device is received. The encrypted whitelist is sent; wherein the whitelist includes the identification information of the P2P device supported by the client device, or the information that identifies the identity information of the P2P device supported by the client device, or the P2P supported by the client device. Feature information of the device; the P2P device supported by the client device allows the client device to obtain its own device. Interest rates P2P device.

With reference to the sixth possible implementation of the third aspect, in a seventh possible implementation, the determining module is specifically configured to: when the receiving module receives a whitelist sent by the client device, The whitelist includes the information of the P2P device, or when the receiving module receives the whitelist sent by the client device, and the P2P device meets the information included in the whitelist. When the feature information of the P2P device supported by the client device is determined, the device information of the client device is carried in the response message sent to the P2P device; and the information protection identifier information carried in the information protection indication of the client device is not represented. Allowing the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, or when the receiving module receives the whitelist sent by the client device, and the whitelist is The information of the P2P device is not included, or when the receiving module receives the whitelist sent by the client device, and the P2P device does not meet the features of the P2P device supported by the client device included in the whitelist. When the information is received, it is determined that the device information of the client device is not carried in the response message sent to the P2P device.

With reference to the third aspect, in an eighth possible implementation, the obtaining module is specifically configured to: after the GO device establishes a secure connection with the client device, receive, by using a corresponding interface of the GO device interface, An information protection indication of the client device, where the information protection indication is used to indicate whether the GO device is allowed to send device information of the client device to a P2P device that is not added to the P2P group; or the information protection indication is used for Determining whether the GO device is allowed to send the device information of the client device to the P2P device supported by the client device according to a whitelist; when the information protection indication is used to indicate that the GO device is allowed to whitelist the client When the device information of the device is sent to the P2P device supported by the client device, the information protection indication further includes a whitelist set for the client device, and the whitelist includes the identification information of the P2P device supported by the client device. Or the information identifying the identification information of the P2P device supported by the client device, or the feature of the P2P device supported by the client device The P2P device supported by the client device is a P2P device that allows the client device to obtain device information of the client.

The fourth aspect provides a client device in a P2P group, including:

a determining module, configured to determine whether a GO device is required to protect device information of the client device;

a sending module, configured to send, to the GO device, an information protection indication of the client device determined by the determining module;

The client device and the GO device belong to the P2P group, and the information protection The indication is used to indicate whether the GO device is required to protect device information of the client device, so that the GO device determines, according to the information protection indication of the client device, whether to carry the message in a response message sent to the P2P device. Device information of the client device, where the P2P device is a P2P device that is not added to the P2P group.

With reference to the fourth aspect, in a first possible implementation, the sending module is specifically configured to send information about the client device to the GO device before the GO device establishes a secure connection with the client device. Protection instructions.

With reference to the fourth aspect, in a second possible implementation, the sending module is specifically configured to send an encrypted information protection indication to the GO device after the client device establishes a secure connection with the GO device.

With reference to the first possible implementation manner of the fourth aspect, or the second possible implementation manner of the fourth aspect, in the third possible implementation manner, the information protection indication carries the information protection identifier information, The information protection identifier information is used to indicate whether the client device allows the GO device to send device information of the client device to the P2P device.

With reference to the first possible implementation manner of the fourth aspect, or the second possible implementation manner of the fourth aspect, in the fourth possible implementation manner, the information protection indication carries the information protection identifier information; The information protection identifier information is used to indicate whether the client device allows the GO device to send device information of the client device to a P2P device supported by the client device according to a whitelist; when the information protection identifier information representation When the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the information protection indication further carries the whitelist; the whitelist includes The information of the P2P device supported by the client device, or the information indicating the identity information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the P2P device supported by the client device is The client device allows a P2P device to obtain device information of the client.

With reference to the first possible implementation manner of the fourth aspect, in a fifth possible implementation manner, the information protection indication carries information protection identifier information, where the information protection identifier information is used Determining whether the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to a whitelist; the sending module is further configured to: when the information protection identifier information representation When the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, after transmitting the information protection indication of the client device to the GO device, After the GO device establishes a secure connection with the client device, the encrypted whitelist is sent to the GO device, where the whitelist includes the identifier information of the P2P device supported by the client device, or the client device is supported. The information of the identification information of the P2P device or the feature information of the P2P device supported by the client device; the P2P device supported by the client device is a P2P device that the client device allows to obtain its own device information.

A fifth aspect, a P2P group is provided, comprising: a GO device as described in the third aspect or in combination with any possible implementation of the third aspect, and at least one as in the fourth aspect or in combination with the fourth aspect A possible implementation of the client device described.

In a sixth aspect, a GO device in a P2P group is provided, including:

a processor, configured to obtain an information protection indication of the client device, where the client device and the GO device belong to the P2P group, and the information protection indication is used to indicate whether the GO device is required to be the client device Device information for protection;

a receiver, configured to receive a P2P query message sent by the P2P device;

The processor is further configured to determine, according to the obtained information protection indication of the client device, whether the device information of the client device is carried in a response message sent to the P2P device;

And a transmitter, configured to send the response message to the P2P device.

With reference to the sixth aspect, in a first possible implementation, the processor, before the establishing a secure connection between the GO device and the client device, receiving information protection sent by the client device by using the receiver Instructions.

With reference to the sixth aspect, in a second possible implementation, the processor, after the GO device establishes a secure connection with the client device, receives, by the receiver, an encrypted sent by the client device. Information protection instructions.

With reference to the first possible implementation manner of the sixth aspect, or the second possible implementation manner of the third aspect, in the third possible implementation manner, the information protection indication carries the information protection identifier information, The information protection identifier information is used to indicate whether the client device allows the GO device to send device information of the client device to the P2P device. The processor is specifically configured to protect information of the client device. The information protection identifier information carried in the indication is configured to allow the GO device to send the device information of the client device to the P2P device, and determine that the device information of the client device is carried in the response message sent to the P2P device. And determining, when the information protection indication information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device, determining a response sent to the P2P device The device information of the client device is not carried in the message.

With reference to the first possible implementation manner of the sixth aspect, or the second possible implementation manner of the sixth aspect, in the fourth possible implementation manner, the information protection indication carries information protection identifier information; The information protection identifier information is used to indicate whether the client device allows the GO device to send device information of the client device to a P2P device supported by the client device according to a whitelist; when the information protection identifier information representation When the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the information protection indication further carries the whitelist; the whitelist includes The information of the P2P device supported by the client device, or the information indicating the identity information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the P2P device supported by the client device is The client device allows a P2P device to obtain device information of the client.

With reference to the fourth possible implementation manner of the sixth aspect, in a fifth possible implementation, the processor is configured to: when the information protection indication of the client device carries a white list, and the white The information includes the information of the P2P device, or the information protection indication of the client device carries a whitelist, and the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist. Determining, in the response message sent to the P2P device, device information of the client device; information carried in the information protection indication of the client device The protection identifier information representation does not allow the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, or the information protection indication of the client device carries a whitelist, and the The whitelist does not include the information of the P2P device, or the information protection indication of the client device carries a whitelist, and the P2P device does not meet the P2P device supported by the client device included in the whitelist. When the feature information is obtained, it is determined that the device information of the client device is not carried in the response message sent to the P2P device.

With reference to the first possible implementation manner of the sixth aspect, in a sixth possible implementation, the information protection indication carries information protection identifier information, where the information protection identifier information is used to represent whether the client device is Allowing the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist; the receiver is further configured to use the information protection identifier carried in the information protection indication of the client device The information representation allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, and after the GO device establishes a secure connection with the client device, the client device is received. The encrypted whitelist is sent; wherein the whitelist includes the identification information of the P2P device supported by the client device, or the information that identifies the identity information of the P2P device supported by the client device, or the P2P supported by the client device. Feature information of the device; the P2P device supported by the client device allows the client device to obtain its own device letter. The P2P device.

With reference to the sixth possible implementation manner of the sixth aspect, in a seventh possible implementation, the processor is configured to: when the receiver receives a whitelist sent by the client device, The whitelist includes the information of the P2P device, or when the receiver receives the whitelist sent by the client device, and the P2P device meets the P2P device supported by the client device included in the whitelist. Determining, in the response message sent by the P2P device, the device information of the client device; the information protection identifier information carried in the information protection indication of the client device does not allow the GO device to follow the white The list sends the device information of the client device to the P2P device supported by the client device, or when the receiver receives the whitelist sent by the client device, and the whitelist does not include the P2P device. Information, or when the receiver receives a whitelist sent by the client device, and the P2P device does not comply with the When the feature information of the P2P device supported by the client device is included in the whitelist, it is determined that the device information of the client device is not carried in the response message sent to the P2P device.

With reference to the sixth aspect, in an eighth possible implementation, the processor is specifically configured to: after the GO device establishes a secure connection with the client device, receive, by using a corresponding interface of the GO device interface, An information protection indication of the client device, where the information protection indication is used to indicate whether the GO device is allowed to send device information of the client device to a P2P device that is not added to the P2P group; or the information protection indication is used for Determining whether the GO device is allowed to send the device information of the client device to the P2P device supported by the client device according to a whitelist; when the information protection indication is used to indicate that the GO device is allowed to whitelist the client When the device information of the device is sent to the P2P device supported by the client device, the information protection indication further includes a whitelist set for the client device, and the whitelist includes the identification information of the P2P device supported by the client device. Or the information identifying the identification information of the P2P device supported by the client device, or the characteristic information of the P2P device supported by the client device The P2P device supported by the client device is a P2P device that allows the client device to obtain device information of the client.

The seventh aspect provides a client device in a P2P group, including:

a processor, configured to determine whether a GO device is required to protect device information of the client device;

a transmitter, configured to send, to the GO device, an information protection indication of the client device determined by the processor;

With reference to the seventh aspect, in a first possible implementation, the transmitter is configured to send information about the client device to the GO device before the GO device establishes a secure connection with the client device. Protection instructions.

With reference to the seventh aspect, in a second possible implementation manner, the transmitter is specifically configured to send an encrypted information protection indication to the GO device after the client device establishes a secure connection with the GO device.

With reference to the first possible implementation manner of the seventh aspect, or the second possible implementation manner of the seventh aspect, in the third possible implementation manner, the information protection indication carries the information protection identifier information, The information protection identifier information is used to indicate whether the client device allows the GO device to send device information of the client device to the P2P device.

With reference to the first possible implementation manner of the seventh aspect, or the second possible implementation manner of the seventh aspect, in the fourth possible implementation manner, the information protection indication carries the information protection identifier information; The information protection identifier information is used to indicate whether the client device allows the GO device to send device information of the client device to a P2P device supported by the client device according to a whitelist; when the information protection identifier information representation When the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the information protection indication further carries the whitelist; the whitelist includes The information of the P2P device supported by the client device, or the information indicating the identity information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the P2P device supported by the client device is The client device allows a P2P device to obtain device information of the client.

With reference to the first possible implementation manner of the seventh aspect, in a fifth possible implementation, the information protection indication carries information protection identifier information, where the information protection identifier information is used to represent whether the client device is Allowing the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist; the sender is further configured to: when the information protection identifier information indicates that the client device allows the When the GO device sends the device information of the client device to the P2P device supported by the client device according to the whitelist, after transmitting the information protection indication of the client device to the GO device, the GO device and the After the client device establishes the secure connection, the encrypted whitelist is sent to the GO device, where the whitelist includes the identifier information of the P2P device supported by the client device, or represents the client setting. The P2P device supported by the P2P device and the P2P device supported by the client device; the P2P device supported by the client device is a P2P device that allows the client device to obtain its own device information.

The eighth aspect provides a P2P group, comprising: a GO device as described in the sixth aspect or in combination with any possible implementation manner of the sixth aspect, and at least one of the seventh aspect or the seventh aspect Possible implementation of the client device described.

Advantageous effects of embodiments of the present invention include:

The P2P group discovery method, related device, and P2P group provided by the embodiment of the present invention, on the client device side, the client device determines whether the GO device needs to protect the device information of the client device, and sends the client device information to the GO device. a protection indication; on the GO device side, the GO device obtains an information protection indication of the client device; receives a P2P query request sent by the P2P device; and determines whether to carry the client in the response message sent to the P2P device according to the obtained information protection indication of the client device Device information of the device and send the response message to the P2P device. A P2P group discovery method provided by the embodiment of the present invention, the client device may determine, for itself, whether the GO device needs to protect the device information of the client device, and the client device determines whether the indication needs the GO device to the client. The information protection indication of the protection of the device information of the device is sent to the GO device. When the GO device receives the P2P query message sent by the P2P device, the device information of all the client devices that have established the connection with the device is not sent to the P2P device. And transmitting, according to the obtained information protection indication of the client device, the client device that allows the device information to be sent to the P2P device, to send the device information of the client device to the P2P device, and not to send the device information to the P2P. The client device of the device does not send the device information of the client device to the P2P device, which improves the security of the device information of the client device.

DRAWINGS

1 is a flowchart of forming a P2P group by a P2P device A and a P2P device B according to the background art of the present invention;

FIG. 2 is a schematic diagram of a P2P group discovery method applied to a GO device side according to an embodiment of the present invention; flow chart;

FIG. 3 is a flowchart of a method for discovering a P2P group applied to a client device side according to an embodiment of the present disclosure;

4 is a flowchart of a method for discovering a P2P group according to Embodiment 1 of the present invention;

FIG. 5 is a flowchart of a second method for discovering a P2P group according to Embodiment 1 of the present invention;

6 is a flowchart of a method for discovering a P2P group according to Embodiment 2 of the present invention;

FIG. 7 is a flowchart of a method for discovering a P2P group applied to a GO device side and a client device side according to an embodiment of the present disclosure;

FIG. 8 is a flowchart of a method for discovering a P2P group according to Embodiment 2 of the present invention;

FIG. 9 is a flowchart of a second method for discovering a P2P group according to Embodiment 2 of the present invention;

FIG. 10 is a flowchart of a method for discovering a P2P group according to Embodiment 1 of the present invention;

FIG. 11 is a flowchart of a method for discovering a P2P group applied to a GO device side and a client device side according to an embodiment of the present disclosure;

FIG. 12 is a flowchart of a method for discovering a P2P group according to Embodiment 5 of the present invention;

FIG. 13 is a flowchart of a method for discovering a P2P group according to Embodiment 6 of the present invention;

FIG. 14 is a flowchart of a method for discovering a P2P group applied to a GO device side and a client device side according to an embodiment of the present disclosure;

15 is a flowchart of a method for discovering a P2P group according to Embodiment 7 of the present invention;

FIG. 16 is a schematic structural diagram of a GO device according to an embodiment of the present disclosure;

FIG. 17 is a schematic structural diagram of a client device according to an embodiment of the present disclosure;

FIG. 18 is a schematic structural diagram of a second GO device according to an embodiment of the present disclosure;

FIG. 19 is a schematic structural diagram of a second client device according to an embodiment of the present invention.

detailed description

The embodiments of the present invention provide a P2P group discovery method, a related device, and a P2P group. The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for explanation and explanation. The present invention is not intended to limit the invention. And without conflict In the case of the embodiments and the features in the embodiments, the features in the present application can be combined with each other.

An embodiment of the present invention provides a method for discovering a P2P group, which is applied to a GO device side, as shown in FIG. 2, and includes:

S201. The GO device obtains an information protection indication of the client device.

The client device and the GO device belong to a P2P group, and the information protection indication is used to indicate whether the GO device needs to protect the device information of the client device.

S202. The GO device receives the P2P query message sent by the P2P device.

S203. The GO device determines, according to the obtained information protection indication of the client device, whether the device information of the client device is carried in the response message sent to the P2P device.

S204. The GO device sends a response message to the P2P device.

Corresponding to the method shown in FIG. 2, the embodiment of the present invention further provides a P2P group discovery method, which is applied to the client device side, as shown in FIG. 3, and includes:

S301. The client device determines whether the GO device needs to protect the device information of the client device.

S302. The client device sends an information protection indication of the client device to the GO device.

The client device and the GO device belong to a P2P group, and the information protection indication is used to indicate whether the GO device needs to protect the device information of the client device, so that the GO device determines whether it is sending to the P2P device according to the information protection indication of the client device. The response message carries the device information of the client device, and the P2P device is a P2P device that has not joined the P2P group, for example, a P2P device that is ready to join the P2P group, or a device that is ready to join other P2P groups, or only Scan the device found in the P2P group.

In the embodiment of the present invention, the GO device is a device that is negotiated as a group leader in the P2P group, the client device is a device that is not a group leader in the P2P group, and the P2P device is a device that is not added to the P2P group. A P2P group discovery method is provided by the embodiment of the present invention. When a P2P device performs P2P discovery, the GO device does not send all the device information of all the client devices in the P2P group to the P2P device, but according to the client. The information protection indication sent by the device determines a client device that can disclose its device information to the P2P device, and will be able to disclose its device information to the P2P device. The device information of the client device is sent to the P2P device, which improves the security of the device information of the client device.

In the embodiment of the present invention, the client device may be a client device or multiple client devices. That is, when the client device is a plurality of client devices, the GO device may perform the foregoing S201 and S203 corresponding to each client device. The operations corresponding to the above S201 and S203 can also be performed for a plurality of client devices at a time.

The method and related equipment provided by the present invention will be described in detail below with reference to the accompanying drawings.

Example 1:

In the first embodiment of the present invention, a method for discovering a P2P group is provided, which is applied to a GO device side. In Embodiment 1, the GO device can receive an information protection indication sent by the client device before establishing a secure connection with the client device, and the information The protection indication carries the information protection identification information, or the information protection indication carries the information protection identification information and the white list.

A method for discovering a P2P group according to Embodiment 1 of the present invention, as shown in FIG. 4 to FIG. 5, specifically includes the following steps:

S401. Before establishing a secure connection between the GO device and the client device, the GO device receives an information protection indication sent by the client device.

Further, in the embodiment of the present invention, after the GO device establishes a secure connection with the client device, the discovery between the GO device and the client device may be completed. For example, the P2P group configuration process shown in Figure 1 is used. When a P2P group is established, the two P2P devices need to negotiate as the P2P device of the GO and the P2P device as the client. Therefore, the P2P as the client is negotiated. The device may establish a secure connection before the GO negotiation with the P2P device as the GO, and at any time before establishing the secure connection, that is, at any time after step S102 and before step S105, the clipet device to the GO The device sends an information protection indication, for example, after step S102 and before step S103, or after step S103 and before step S104, the client The device sends an information protection indication to the GO device; and for the client device that joins the P2P group after the P2P group is established, after the GO device sends the P2P response message for the P2P query message to the client device, and before establishing the secure connection, At any time, that is, after step S107 and before step S110, the client device sends an information protection indication to the GO device, for example, after step S107 and before step S108, or after step S108 and at step S109. Previously, the client device sent an information protection indication to the GO device.

Further, the information protection indication may be carried by an existing message, or a new message may be created to carry the information protection indication.

Further, in this step, the client device may be one or more. When there are multiple, this step is performed for each client device, and the GO device receives the client device before the GO device establishes a secure connection with the client device. Information protection instructions sent.

Optionally, after receiving the information protection indication sent by the client device, the GO device may also reply the confirmation message to the corresponding client device.

S402. Receive a P2P query message sent by the P2P device.

Further, the P2P query message in this step may be used to perform P2P discovery, for example, may be a Probe Request message.

Further, when the information protection indication carries the information protection identification information, as shown in FIG. 4, after performing steps S401 to S402, steps S403 to S406 are performed:

S403. Determine whether the information protection identifier information indicates that the GO device is allowed to send the device information of the client device to the P2P device; if yes, go to step S404, otherwise, go to step S405.

Further, the information protection indication carries the information protection identifier information, where the information protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the P2P device, that is, the information protection identifier information is not added for all The P2P device of the P2P group, if the information protection identifier information representation allows the GO device to transmit the device information of the client device to the P2P device, the characterizing device is allowed to send the device information of the client device to all P2P devices that send the query request to the GO device. If the information protection identification information representation does not allow the GO device to transmit the device information of the client device to the P2P device, the device that does not allow the GO device to hold the client device The information is sent to any P2P device that sent a query request to the GO device.

Further, the information protection identifier information may be implemented in multiple implementation manners, for example, the information protection identifier may be implemented by using an information protection identifier, and the information protection identifier may be a bit bit or multiple bits, and the information protection identifier is The value indicates whether the corresponding client device allows the GO device to send the device information of the corresponding client device to the P2P device that is not joined to the P2P group.

Further, in order to make the existing protocol change less, the information protection indication may be carried by the existing message. The following is an example of an association request (Association Request) message. In the specific implementation, an indication bit may be added in the P2P capability field of the Association Request message as an information protection identifier to indicate whether the GO device is allowed to send its own device information. 1 is the use of 8 bits included in the P2P capability field. As shown in Table 1, the bold font in Table 1 is the 6th bit, which represents the information protection indication bit. The indicator bit can be a bit bit, and the value of the bit bit can be used to characterize the device that allows the GO device to transmit its own device information or not allow the GO device to transmit its own device information. For example, when the value of the bit is 1, the characterization is to allow the GO device to send the device information of the client device itself. When the value of the bit is 0, the characterization does not allow the GO device to send the device information of the client device itself; or, when When the value of the bit is 0, the device is configured to allow the GO device to send the device information of the client device. When the value of the bit is 1, the device does not allow the GO device to send the device information of the client device, which can be defined according to the actual situation. .

Table 1

Further, if the GO device replies to the client device with an acknowledgment message, it may send an association response (Association Response) message to acknowledge the received Association Request message.

Further, when the client device is a plurality of client devices, the step may be performed: determining, for each client device, whether the information protection identifier information of the client device indicates that the GO device is allowed to send the device information of the client device to the P2P device. .

S404. The GO device determines that the device information of the client device is carried in the response message sent to the P2P device. Proceed to step S406.

In this step, when the information protection identifier information carried in the information protection indication of the client device allows the GO device to transmit the device information of the client device to the P2P device, the GO device determines that the response message sent to the P2P device carries the client device. Device Information.

S405. The GO device determines that the device information of the client device is not carried in the response message sent to the P2P device.

In this step, when the information protection identifier information carried in the information protection indication of the client device does not allow the GO device to transmit the device information of the client device to the P2P device, the GO device determines that the response message sent to the P2P device does not carry the client. Device information for the device.

S406. Send a response message to the P2P device.

Further, when the information protection indication carries the information protection identification information and the white list, as shown in FIG. 5, after steps S401 to S402 are performed, steps S4031 to S4071 are performed.

S4031: Determine whether the information protection identifier information is used to indicate that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist; if yes, go to step S4041; otherwise, go to step S4061.

Further, the information protection indication carries the information protection identifier information; the information protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist;

When the information protection identifier information indicates that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the information protection indication further carries a whitelist;

The whitelist contains the identification information of the P2P device supported by the client device, or the information indicating the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device. The P2P device supported by the client device allows the client device to obtain the P2P device. The client's device information for the P2P device.

Further, in the embodiment of the present invention, the whitelist may include information of the P2P device supported by the client device, that is, the information of the P2P device that the client device allows to acquire its own device information. The whitelist can have different ways of storing information of the P2P device, for example, it can be directly supported. The device identification information of the P2P device is stored (for example, the MAC address information of the P2P device);

The whitelist may also store information indicating the identification information of the P2P device supported by the client device. That is, if the storage space needs to be saved, the identification information of the P2P device may not be directly stored, but the identification information used to characterize the P2P device may be stored. The information can be implemented in the form of a bloom filter. Each client device generates a bloom filter bit table, and uses the bloom filter to identify the P2P device supported by the client device (for example, MAC address). After performing a hash operation, the value obtained by the hash operation is used to represent the location of the bit information of the P2P device stored in the blowfilter bit table, and the calculated value is mapped to the corresponding bit in the bloomfilter bit table. And set the value of this bit to 1 (all bits in the bloom filter bit table are initially 0). For example, if the value obtained by the operation is n, the nth bit in the bloomfilter bit table is set to 1. The GO device receives the bloom filter bit table sent by the client device that allows it to send the device information according to the whitelist, and the GO device interacts with the client device in advance to interact with the client device, so that the GO device receives the query sent by the P2P device. In the case of a message, the client device that has sent the whitelist is first determined, and the hashing bit table set for each device that has sent the whitelist is hashed to the identification information of the P2P device, and the identification information of the P2P device is obtained. The position information in the bloomfilter bit table is compared with the position information of each bloomfilter bit table. If the location of the P2P device in the blood filter bit table is 1 after the hash information, the P2P device is the bloomfilter. The P2P device supported by the client device corresponding to the bit table, the GO device may send the device information of the client device to the P2P device. Further, a bloom filter bit table may be set for all client devices, and different client devices adopt different hash algorithms. The specific implementation manner may be determined according to actual conditions, and is not enumerated here;

Further, the whitelist may also store the feature information of the P2P device supported by the client device, that is, the client device may determine the common features of the P2P device supported by the client, and store the feature in the whitelist, when the P2P device has In this feature, the GO device is allowed to send its own device information to the P2P device. For example, the client device can determine that the supported P2P device has the following characteristics: the pre-preset bit of the MAC address of the P2P device and the front of its own MAC address. The preset bits are the same because The pre-set of the MAC address of the device of the same manufacturer is usually the same. When the pre-preset bit of the MAC address of the P2P device is the same as the pre-preset bit of the MAC address of the client device, the client device allows the GO device to connect the client device. Device information is sent to the P2P device.

Further, when the client device is a plurality of client devices, the step may be implemented as: determining, for each client device, whether the information protection identifier information carried by the information protection indication sent by the client device is used to represent the client device to allow the GO device The device information of the client device is sent to the P2P device supported by the client device according to the whitelist.

S4011: Determine whether the information of the P2P device is included in the whitelist, or whether the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist; if yes, go to step S4051; otherwise, go to step S4061.

Further, when the client device is a plurality of client devices, the step may be implemented as follows: for each sent information protection indication, the client device carrying the whitelist is determined, and determining whether the whitelist of the client device includes the information of the P2P device Whether the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist.

S4051: The GO device determines that the device information of the client device is carried in the response message sent to the P2P device. Go to step S4071.

In this step, the information protection indication of the client device carries the whitelist, and the whitelist includes the information of the P2P device, or the information protection indication of the client device carries the whitelist, and the P2P device complies with the client included in the whitelist. When the feature information of the P2P device supported by the device is used, the GO device determines that the device information of the client device is carried in the response message sent to the P2P device.

S4061: The GO device determines that the device information of the client device is not carried in the response message sent to the P2P device.

In this step, the information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, or the information protection indication of the client device. The whitelist is carried in the whitelist, and the whitelist does not include the information of the P2P device, or the information protection indication of the client device carries the whitelist, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist. Time, The GO device determines that the device information of the client device is not carried in the response message sent to the P2P device.

S4071: Send a response message to the P2P device.

Example 2:

Corresponding to the first embodiment of the present invention, in the second embodiment of the present invention, a method for discovering a P2P group is provided, which is applied to the client device side. As shown in FIG. 6, the method includes the following steps:

S601. The client device determines whether the GO device is required to protect the device information of the client device.

S602. Before the GO device establishes a secure connection with the client device, the client device sends an information protection indication of the client device to the GO device.

Further, when the client device is a client device that establishes a P2P group with the GO device, the step may be specifically implemented after the GO negotiation between the client device and the GO device, and before the GO device establishes a secure connection with the client device, The GO device sends an information protection indication of the client device. When the client device joins the client device of the P2P group after the P2P group is established, the step may be specifically implemented as: receiving, by the client device, the P2P response sent by the GO device for the P2P query message. After the message, and before the GO device establishes a secure connection with the client device, the information protection indication of the client device is sent to the GO device.

Further, the information protection indication may carry the information protection identifier information, where the information protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the P2P device.

Further, the information protection indication may be carried with the information protection identifier information; the information protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist;

The whitelist contains the identification information of the P2P device supported by the client device, or the information indicating the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device. The P2P device supported by the client device allows the client to obtain the client. Device information for P2P devices.

Corresponding to Embodiment 1 and Embodiment 2, FIG. 7 is a method for discovering a P2P group according to an embodiment of the present invention, which is applied to a GO device side and a client device side. As shown in FIG. 7, the method includes the following steps:

S701. The interaction between the probe request message and the probe response message is performed between the first P2P device and the second P2P device.

S702: The first P2P device and the second P2P device perform GO device negotiation, and the negotiation result is that the second P2P device is a GO device.

Further, in this step, if it is determined that the second P2P device is a GO device, in this implementation, the second P2P device is equivalent to the GO device in Embodiment 1 and Embodiment 2, and the first P2P device is equivalent to Embodiment 1 And the client device in Embodiment 2.

S703. The first P2P device and the second P2P device perform an initial authentication interaction.

S704: The first P2P device sends an information protection indication Association Request to the second P2P device, and the information protection indication carries the information protection identifier information, where the information protection identifier information indicates that the first P2P device allows the second P2P device to be the first P2P device. Device information is sent to P2P devices that are not connected to the P2P group.

S705. The second P2P device sends a confirmation response Association Response to the first P2P device.

S706. The first P2P device interacts with the second P2P device to configure WPS configuration information.

S707. The first P2P device performs a four-way handshake with the second P2P device to establish a secure channel.

S708. The second P2P device receives the query message sent by the third P2P device.

S709. The second P2P device sends a response message to the third P2P device, and carries the device information of the first P2P device in the response message.

S710. The third P2P device sends an information protection indication Association to the second P2P device. The information protection indication carries the information protection indication information, and the information protection indication information indicates that the third P2P device allows the second P2P device to send the device information of the third P2P device to the P2P device that is not connected to the P2P group according to the white list. .

S711. The second P2P device sends a confirmation response Association Response to the third P2P device.

S712. The second P2P device receives the query message sent by the fourth P2P device.

S713. The second P2P device sends a response message to the fourth P2P device, and determines that the fourth P2P device is not the P2P device supported by the third P2P device according to the whitelist of the third P2P device, and only carries the first in the probe response. Device information of the P2P device.

S714. The fourth P2P device sends an information protection indication Association Request to the second P2P device, and the information protection indication carries an information protection indication bit and a white list. The value of the information protection indication bit indicates that the fourth P2P device allows the second P2P device to follow. The whitelist sends the device information of the fourth P2P device to the P2P device that is connected to the P2P group.

S715. The second P2P device sends a confirmation response Association Response to the fourth P2P device.

Further, the execution of steps S708 to S715 and the execution of steps S705 to S707 are not strictly sequential.

Example 3:

In the third embodiment of the present invention, a method for discovering a P2P group is provided, which is applied to a GO device side. In Embodiment 3, the GO device receives an encrypted information protection indication sent by the client device after establishing a secure connection with the client device, and The information protection indication carries information protection identification information, or the information protection indication carries information protection identification information and a white list.

A method for discovering a P2P group according to Embodiment 3 of the present invention, as shown in FIG. 8 to FIG. 9, specifically includes the following steps:

S801. After establishing a secure connection between the GO device and the client device, receiving an encrypted information protection indication sent by the client device.

Further, in the embodiment of the present invention, after the GO device establishes a secure connection with the client device, the handshake between the GO device and the client device may be completed after four handshakes. Take the P2P group setup process shown in Figure 1 as an example. For the P2P group, the P2P as the client in the two P2P devices. After the device establishes the secure connection, the client device may send an information protection indication to the GO device after the step S105. For the client device that joins the P2P group after the P2P group is established, after the secure connection is established, the client device may after the step S110. The GO device sends an information protection indication.

Further, in this step, the information protection indication may be encrypted according to the secure connection established by the GO device and the client device. In this embodiment, the information protection indication may be carried by an existing message, or a new message may be created for carrying. For example, the information protection indication can be carried by an existing Action message, a management message, or the like. When encrypting, the data carried after the message header can be encrypted according to the established secure connection.

S802. Decrypt the received information protection indication of the encryption.

S803. Receive a P2P query message sent by the P2P device.

Further, when the information protection indication carries the information protection identification information, as shown in FIG. 8, after performing steps S801 to S803, steps S804 to S807 are performed:

S804. Determine whether the information protection identifier information indicates that the GO device is allowed to send the device information of the client device to the P2P device; if yes, go to step S805; otherwise, go to step S806.

S805. The GO device determines that the device information of the client device is carried in the response message sent to the P2P device. Proceed to step S807.

S806. The GO device determines that the device information of the client device is not carried in the response message sent to the P2P device.

In this step, the information protection identifier information carried in the information protection indication of the client device is characterized When the GO device is not allowed to send the device information of the client device to the P2P device, the GO device determines that the device information of the client device is not carried in the response message sent to the P2P device.

S807. Send a response message to the P2P device.

Further, when the information protection indication carries the information protection identification information and the white list, as shown in FIG. 9 , after steps S801 to S803 are performed, steps S8041 to S8081 are performed.

S8041: Determine whether the information protection identifier information is used to indicate that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist; if yes, go to step S8051; otherwise, go to step S8071.

S8051: Determine whether the information of the P2P device is included in the whitelist, or whether the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist; if yes, go to step S8061; otherwise, go to step S8071.

Further, when the client device is a plurality of client devices, the step may be implemented as follows: for each sent information protection indication, the client device carrying the whitelist is determined, and the white of the client device is determined. Whether the information of the P2P device is included in the list, or whether the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist.

S8061: The GO device determines that the device information of the client device is carried in the response message sent to the P2P device. Go to step S8081.

S8071: The GO device determines that the device information of the client device is not carried in the response message sent to the P2P device.

In this step, the information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, or the information protection indication of the client device. The whitelist is carried in the whitelist, and the whitelist does not include the information of the P2P device, or the information protection indication of the client device carries the whitelist, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist. The GO device determines that the device information of the client device is not carried in the response message sent to the P2P device.

S8081: Send a response message to the P2P device.

Example 4:

Corresponding to Embodiment 3 of the present invention, in Embodiment 4 of the present invention, a method for discovering a P2P group is provided, which is applied to the client device side, as shown in FIG. 10, and specifically includes the following steps:

S1001: The client device determines whether the GO device is required to protect the device information of the client device.

S1002: After the client device establishes a secure connection with the GO device, send an encrypted information protection indication to the GO device.

In this step, for the explanation of the information protection indication carrying content, refer to Embodiment 2, where Let me repeat.

Corresponding to Embodiment 3 and Embodiment 4, FIG. 11 is a P2P discovery method according to an embodiment of the present invention, which is applied to a GO device side and a client device side, as shown in FIG.

S1101: Perform interaction between the probe request message and the probe response message between the first P2P device and the second P2P device.

S1102: The first P2P device and the second P2P device perform GO device negotiation, and the negotiation result is that the second P2P device is a GO device.

Further, in this step, if it is determined that the second P2P device is a GO device, in this implementation, the second P2P device is equivalent to the GO device in Embodiment 3 and Embodiment 4, and the first P2P device is equivalent to Embodiment 3 And the client device in Embodiment 4.

S1103: The first P2P device and the second P2P device perform an initial authentication interaction.

S1104: The first P2P device interacts with the second P2P device to configure WPS configuration information.

S1105: The first P2P device performs a four-way handshake with the second P2P device to establish a secure channel.

Further, it is considered that the secure connection is established between the first P2P device and the second P2P device in step S1105.

S1106: The first P2P device sends an encrypted information protection indication to the second P2P device, where the information protection indication carries an information protection identifier, where the value of the information protection identifier indicates that the first P2P device does not allow the second P2P device to be the first The device information of the P2P device is sent to the P2P device that is not connected to the P2P group.

S1107: The second P2P device sends an acknowledgement response to the first P2P device.

S1108: The second P2P device receives the query message sent by the third P2P device.

S1109: The second P2P device sends a response message to the third P2P device, and does not carry any device information of the P2P device in the probe response.

S1110. The third P2P device and the second P2P device perform an initial authentication interaction.

The S1111, the third P2P device and the second P2P device exchange WPS configuration information.

S1112: The third P2P device performs a four-way handshake with the second P2P device to establish a secure channel.

Further, it is considered that the secure connection is established between the third P2P device and the second P2P device in step S1112.

S1113: The third P2P device sends an encrypted information protection indication to the second P2P device, where the information protection indication carries the information protection indication bit and the white list, and the value of the information protection indication bit indicates that the third P2P device allows the second P2P device to follow The whitelist sends the device information of the third P2P device to the P2P device that is connected to the P2P group.

S1114: The second P2P device sends an acknowledgement response to the third P2P device.

Example 5:

In the embodiment 5 of the present invention, a method for discovering a P2P group is provided, which is applied to a GO device side. In Embodiment 5, the GO device receives an information protection indication sent by the client device after establishing a preliminary connection with the client device, and the information protection The indication carries an information protection identifier and receives an encrypted whitelist after establishing a secure connection with the client device.

A method for discovering a P2P group according to Embodiment 5 of the present invention, as shown in FIG. 12, specifically includes the following steps:

S1201: Before the GO device establishes a secure connection with the client device, the GO device receives an information protection indication sent by the client device.

The information protection indicator carries the information protection identifier information. The information protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist.

S1202: Receive a P2P query message sent by the P2P device.

S1203: Determine whether the information protection identifier information carried in the information protection indication of the client device indicates that the GO device is allowed to send the device information of the client device to the P2P device supported by the client device according to the whitelist; if yes, go to step S1204, otherwise, go to step S1207. .

S1204: After the GO device establishes a secure connection with the client device, receiving an encrypted whitelist sent by the client device,

The whitelist includes the identifier information of the P2P device supported by the client device, or the identifier information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device. The P2P device supported by the client device is allowed by the client device. A P2P device that obtains its own device information.

In this step, when the information protection identifier information carried in the information protection indication of the client device indicates that the GO device sends the device information of the client device to the P2P device supported by the client device according to the white list, the GO device establishes a secure connection with the client device. After that, the encrypted whitelist sent by the client device is received.

S1205: Determine whether the information of the P2P device is included in the whitelist, or whether the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist; if yes, go to step S1206; otherwise, go to step S1207.

S1206: The GO device determines that the device information of the client device is carried in the response message sent to the P2P device. Proceed to step S1208.

Further, in this step, when receiving the whitelist sent by the client device, the whitelist includes the information of the P2P device, or receives the whitelist sent by the client device, and the P2P device complies with the client device supported by the whitelist. When the feature information of the P2P device is used, the GO device determines that the device information of the client device is carried in the response message sent to the P2P device.

S1207. The GO device determines that the device information of the client device is not carried in the response message sent to the P2P device.

Further, in this step, the information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, or send the client device to send If the whitelist does not include the information of the P2P device or the whitelist sent by the client device, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist, the GO device determines The response message sent to the P2P device does not carry the device information of the client device.

S1208: Send a response message to the P2P device.

Example 6

Corresponding to the fifth embodiment of the present invention, in the sixth embodiment of the present invention, a method for discovering a P2P group is provided, which is applied to the client device side, as shown in FIG.

S1301: The client device determines whether the GO device needs to protect the device information of the client device.

S1302: Send an information protection indication of the client device to the GO device before establishing a secure connection between the GO device and the client device.

Further, when the client device is the client device that establishes the P2P group with the GO device, the step may be specifically implemented after the GO negotiation between the client device and the GO device, and before the GO device establishes a secure connection with the client device. And sending the information protection indication of the client device to the GO device; when the client device is added to the client device of the P2P group after the P2P group is established, the step may be specifically implemented: after the client device receives the P2P probe response sent by the GO device, And before the GO device establishes a secure connection with the client device, sending an information protection indication of the client device to the GO device.

Further, the information protection indication carries the information protection identifier information; the information protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the corresponding P2P device according to the whitelist;

S1303: Determine whether the information protection identifier information indicates that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist; if yes, go to step S1304; otherwise, the process ends.

S1304: After the GO device establishes a secure connection with the client device, and sends the encrypted whitelist to the GO device before the GO device interacts with the client device.

Corresponding to Embodiment 5 and Embodiment 6, FIG. 14 is a method for discovering a P2P group according to an embodiment of the present invention, which is applied to a GO device side and a client device side, as shown in FIG. Next steps:

S1401: Perform interaction between the probe request message and the probe response message between the first P2P device and the second P2P device.

S1402: The first P2P device and the second P2P device perform GO device negotiation, and the negotiation result is that the second P2P device is a GO device.

Further, in this step, it is assumed that the second P2P device is a GO device, and in this embodiment, the second P2P device is equivalent to the GO device in Embodiment 5 and Embodiment 6, and the first P2P device is equivalent to Embodiment 5 And the client device in Embodiment 6.

S1403: The first P2P device sends an information protection indication Association Request to the second P2P device, and the information protection indication carries the information protection identifier information, where the information protection identifier information indicates that the first P2P device allows the second P2P device to be the first according to the whitelist. The device information of the P2P device is sent to the P2P device that is not connected to the P2P group.

S1404: The second P2P device sends a confirmation response Association Response to the first P2P device.

S1405: The first P2P device and the second P2P device perform an initial authentication interaction.

S1406: The first P2P device interacts with the second P2P device to configure WPS configuration information.

S1407: The first P2P device performs a four-way handshake with the second P2P device to establish a secure channel.

Further, it can be considered that a secure connection is established between the first P2P device and the second P2P device in step S1407.

S1408: The second P2P device receives the whitelist sent by the first P2P device.

S1409: The second P2P device receives the query message sent by the third P2P device.

S1410: The second P2P device sends a response message to the third P2P device, and determines that the third P2P device is not the P2P device supported by the first P2P device according to the whitelist of the first P2P device, and does not carry any P2P in the probe response. Device information for the device.

S1411: The third P2P device sends an information protection indication Association Request to the second P2P device, and the information protection indication carries an information protection indication bit, and the value of the information protection indication bit indicates that the third P2P device allows the second P2P device to follow the white list. Device information of the third P2P device It is sent to the P2P device that is connected to the P2P group.

S1412: The second P2P device sends a confirmation response Association Response to the third P2P device.

S1413. The third P2P device and the second P2P device perform an initial authentication interaction.

S1414. The third P2P device interacts with the second P2P device to configure WPS configuration information.

The S1415 and the third P2P device perform a four-way handshake with the second P2P device to establish a secure channel.

Further, it is considered that a secure connection is established between the third P2P device and the second P2P device in step S1415.

S1416: The third P2P device sends a whitelist to the second P2P device.

Example 7

In the seventh embodiment of the present invention, a method for discovering a P2P group is provided, which is applied to a GO device side. In Embodiment 7, after the GO device establishes a secure connection with the client device, the GO device receives the client device through the corresponding interface of the GO device interface. Information protection instructions.

A method for discovering a P2P group according to Embodiment 7 of the present invention, as shown in FIG. 15, specifically includes the following steps:

S1501: After establishing a secure connection between the GO device and the client device, receiving, by the corresponding interface of the GO device interface, an information protection indication for the client device;

Further, the information protection indication is used to indicate whether the GO device is allowed to send the device information of the corresponding client device to the P2P device that is not added to the P2P group; or

The information protection indication is used to indicate whether the GO device is allowed to send the device information of the client device to the P2P device supported by the client device according to the whitelist; and the information protection indication is used to indicate that the GO device is allowed to send the device information of the client device to the client according to the whitelist. When the device supports P2P devices, the information protection indication also includes a whitelist set for the client device.

The whitelist includes the identification information of the P2P device supported by the client device, or the information indicating the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device. The P2P device supported by the client device allows the client device to obtain the P2P device. P2P device with its own device information.

Further, for some client devices that do not have a rich UI interface, the user cannot directly set the information of the P2P device supported by the client device through the user interface (UI, User Interface) interface, and the GO device usually processes the information. A more powerful P2P device usually has a UI interface, and the user can use the interface on the GO to set a protection indication for the client that has established a secure connection with the GO device. Moreover, the user can operate through an interface provided by the corresponding application on the GO interface, and set an information protection indication for the client device.

Further, a plurality of setting modes may be included: whether to allow the information of the client device to be sent to the P2P device that is not connected to the P2P group, or whether the information of the client device is allowed to be sent to the P2P that is not connected to the P2P group according to the whitelist. The device, if allowed, also needs to set a corresponding whitelist for the client device.

S1502: Receive a P2P query message sent by the P2P device.

S1503: Determine, according to the obtained information protection indication of the client device, whether the device information of the client device is carried in the response message sent to the P2P device, and if yes, go to step S1504; otherwise, go to step S1505.

S1504: Send a response message carrying the device information of the client device to the P2P device. This process ends.

S1505: Send a response message to the P2P device that does not carry any device information of the client device. This process ends.

Based on the same inventive concept, the embodiment of the present invention further provides a related device and a P2P group. Since the principle of the problem solved by the related device and the P2P group is similar to the method for discovering the P2P group, the implementation of the related device and the P2P group can be referred to. The implementation of the foregoing method will not be repeated here.

The GO device in the P2P group provided by the embodiment of the present invention, as shown in FIG. 16, includes the following modules:

The obtaining module 1601 is configured to obtain an information protection indication of the client device, where the client device and the GO device belong to the P2P group, and the information protection indication is used to indicate whether the GO device is required to be the client Device information of the device is protected;

The receiving module 1602 is configured to receive a P2P query message sent by the P2P device.

a determining module 1603, configured to determine, according to the information protection indication of the client device obtained by the obtaining module 1601, whether the device information of the client device is carried in a response message sent to the P2P device;

The sending module 1604 is configured to send the response message to the P2P device.

Further, the obtaining module 1601 is specifically configured to receive an information protection indication sent by the client device before the GO device establishes a secure connection with the client device.

Further, the obtaining module 1601 is specifically configured to: after the GO device establishes a secure connection with the client device, receive an encrypted information protection indication sent by the client device.

Further, the information protection indication carries the information protection identifier information, where the information protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the P2P device;

The determining module 1603 is configured to: when the information protection identifier information carried in the information protection indication of the client device is configured to allow the GO device to send the device information of the client device to the P2P device, determine The device sends the device information of the client device to the response message sent by the P2P device;

When the information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device, determine a response message sent to the P2P device. The device information of the client device is not carried in the device.

Further, the information protection indication carries the information protection identifier information, where the information protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the whitelist according to the whitelist. P2P device supported by the client device;

When the information protection identifier information indicates that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the information protection indication further carries White list

The whitelist includes the identification information of the P2P device supported by the client device, or the information identifying the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the client device Supported P2P devices are allowed for the client device A P2P device that obtains device information of the client.

Further, the determining module 1603 is configured to: when the information protection indication of the client device carries a whitelist, and the whitelist includes the information of the P2P device, or

The information protection indication of the client device carries a whitelist, and the P2P device determines the response sent to the P2P device when the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist. The message carrying the device information of the client device is included in the message;

The information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, or

The information protection indication of the client device carries a whitelist, and the whitelist does not include the information of the P2P device, or

When the information protection indication of the client device carries a whitelist, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist, determining that the P2P device sends the information to the P2P device. The device information of the client device is not carried in the response message.

The receiving module 1602 is further configured to: when the information protection indication information carried in the information protection indication of the client device is used to indicate that the GO device is configured to send the device information of the client device to the client device according to a white list. Receiving, by the P2P device, an encrypted white list sent by the client device after the GO device establishes a secure connection with the client device;

The whitelist includes the identifier information of the P2P device supported by the client device, or the identifier information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device. The P2P device supported by the client device is a P2P device that allows the client device to obtain its own device information.

Further, the determining module 1603 is specifically configured to: when receiving the whitelist sent by the client device, the whitelist includes the information of the P2P device, or

Receiving the whitelist sent by the client device, and the P2P device is configured to carry the response message sent by the P2P device when the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist. Device information of the client device;

Receiving a whitelist sent by the client device, and the whitelist does not include the information of the P2P device, or

After receiving the whitelist sent by the client device, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist, determining that the response message is sent to the P2P device. The device information of the client device is not carried.

Further, the obtaining module 1601 is configured to: after the GO device establishes a secure connection with the client device, receive an information protection indication for the client device by using a corresponding interface of the GO device interface;

The information protection indication is used to indicate whether the GO device is allowed to send device information of the client device to a P2P device that is not joined to the P2P group; or

The information protection indication is used to indicate whether the GO device is allowed to send the device information of the client device to the P2P device supported by the client device according to a whitelist; and when the information protection indication is used to indicate that the GO device is allowed to be When the device information of the client device is sent to the P2P device supported by the client device according to the whitelist, the information protection indication further includes a whitelist set for the client device;

The whitelist includes the identification information of the P2P device supported by the client device, or the information identifying the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the client device The supported P2P device is a P2P device that allows the client device to obtain device information of the client.

The client device in the P2P group provided by the embodiment of the present invention, as shown in FIG. 17, includes the following modules:

a determining module 1701, configured to determine whether a GO device is required to protect device information of the client device;

The sending module 1702 is configured to send, to the GO device, an information protection indication of the client device determined by the determining module 1701;

Further, the sending module 1702 is specifically configured to send an information protection indication of the client device to the GO device before the GO device establishes a secure connection with the client device.

Further, the sending module 1702 is specifically configured to send an encrypted information protection indication to the GO device after the client device establishes a secure connection with the GO device.

Further, the information protection indication carries the information protection identifier information, where the information protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the P2P device.

Further, the information protection indication carries information protection identification information; The protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to a whitelist;

The sending module 1702 is further configured to: when the information protection identifier information indicates that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to a white list, After transmitting the information protection indication of the client device to the GO device, after the GO device establishes a secure connection with the client device, sending an encrypted whitelist to the GO device;

A P2P group provided by the embodiment of the present invention includes: a GO device as shown in FIG. 16 and at least one client device as shown in FIG. 17.

The embodiment of the present invention provides a GO device in a P2P group, as shown in FIG. 18, including a processor 1801 (which may be one or more, one of the embodiments of the present invention is taken as an example), and the receiver 1802 sends 1803, memory 1804, and bus system 1805, wherein:

The processor 1801 controls the operation of the GO device, and the processor 1801 may also be referred to as a CPU (Central Processing Unit). The processor 1801 may be an integrated circuit chip with signal processing capabilities. The processor 1801 may also be a general-purpose processor, a digital signal processing (DSP), an application specific integrated circuit (ASIC), a Field-Programmable Gate Array (FPGA), or the like. Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

Memory 1804 can include read only memory and random access memory and provides instructions and data to processor 1801. A portion of memory 1804 may also include non-volatile random access memory (NVRAM).

The various components of the GO device are coupled together by a bus system 1805, which may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like. The bus system may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus. The bus may be one or more physical lines, and when it is a plurality of physical lines, it may be divided into an address bus, a data bus, a control bus, and the like. In some other embodiments of the present invention, the processor 1801, the memory 1804, and the receiver 1802, the transmitter 1803 may also be directly connected through a communication line. However, for clarity of description, various buses are labeled as bus system 1805 in the figure.

Memory 1804 stores the following elements, executable modules or data structures, or subsets thereof, or their extended sets:

Operation instructions: include various operation instructions for implementing various operations.

Operating system: Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.

In the embodiment of the present invention, the processor 1801 performs the following operations by calling an operation instruction stored in the memory 1804 (which can be stored in the operating system):

The processor 1801 is configured to obtain an information protection indication of the client device, where the client device and the GO device belong to the P2P group, and the information protection indication is used to indicate whether the GO device is required to be the client Device information of the device is protected;

The receiver 1802 is configured to receive a P2P query message sent by the P2P device.

The processor 1801 is further configured to: determine, according to the obtained information protection indication of the client device, whether the device information of the client device is carried in a response message sent to the P2P device;

The transmitter 1803 is configured to send the response message to the P2P device.

Further, the processor 1801 receives, by the receiver 1802, an information protection indication sent by the client device, before the GO device establishes a secure connection with the client device.

Further, the processor 1801, after the GO device establishes a secure connection with the client device, receives the encrypted letter sent by the client device by using the receiver 1802. Information protection instructions.

The processor 1801 is configured to: when the information protection identifier information carried in the information protection indication of the client device is configured to allow the GO device to send the device information of the client device to the P2P device, determine The device sends the device information of the client device to the response message sent by the P2P device;

Further, the processor 1801 is specifically configured to: when the information protection indication of the client device carries a whitelist, and the whitelist includes the information of the P2P device, or

The information protection identifier information carried in the information protection indication of the client device is not allowed to be characterized The GO device sends the device information of the client device to the P2P device supported by the client device according to a whitelist, or

The receiver 1802 is further configured to: when the information protection indication information carried in the information protection indication of the client device is used to indicate that the GO device is configured to send the device information of the client device to the client device according to a white list. Receiving, by the P2P device, an encrypted white list sent by the client device after the GO device establishes a secure connection with the client device;

Further, the processor 1801 is specifically configured to: when the receiver 1802 receives the whitelist sent by the client device, and the whitelist includes the information of the P2P device, or

When the receiver 1802 receives the whitelist sent by the client device, and the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist, determining that the P2P device is in the P2P device The sent response message carries the device information of the client device.

When the receiver 1802 receives the whitelist sent by the client device, and the whitelist Does not include information about the P2P device, or

When the receiver 1802 receives the whitelist sent by the client device, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist, determining that the P2P is in the P2P The device information sent by the device does not carry the device information of the client device.

Further, the processor 1801 is configured to: after the GO device establishes a secure connection with the client device, receive an information protection indication for the client device by using a corresponding interface of the GO device interface;

The embodiment of the present invention provides a client device in a P2P group, as shown in FIG. 19, including a processor 1901 (which may be one or more, one of the embodiments of the present invention is taken as an example), a transmitter 1902, and a memory. 1903 and a bus system 1904, wherein:

The processor 1901 controls the operation of the GO device, and the processor 1901 may also be referred to as a CPU (Central Processing Unit). The processor 1901 may be an integrated circuit chip with signal processing capabilities. The processor 1901 may also be a general-purpose processor, a digital signal processing (DSP), an application specific integrated circuit (ASIC), a Field-Programmable Gate Array (FPGA), or the like. Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. General office The processor can be a microprocessor or the processor can be any conventional processor or the like.

The memory 1903 can include read only memory and random access memory and provides instructions and data to the processor 1901. A portion of the memory 1903 may also include non-volatile random access memory (NVRAM).

The various components of the GO device are coupled together by a bus system 1904, which may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like. The bus system may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus. The bus may be one or more physical lines, and when it is a plurality of physical lines, it may be divided into an address bus, a data bus, a control bus, and the like. In some other embodiments of the present invention, the processor 1901, the memory 1903, and the transmitter 1902 may also be directly connected through a communication line. However, for clarity of description, various buses are labeled as bus system 1904 in the figure.

The memory 1903 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:

In the embodiment of the present invention, the processor 1901 performs the following operations by calling an operation instruction stored in the memory 1903 (which can be stored in the operating system):

The processor 1901 is configured to determine whether the GO device is required to protect device information of the client device.

a transmitter 1902, configured to send, to the GO device, an information protection indication of the client device determined by the processor 1901;

Further, the transmitter 1902 is specifically configured to send an information protection indication of the client device to the GO device before the GO device establishes a secure connection with the client device.

Further, the transmitter 1902 is specifically configured to send an encrypted information protection indication to the GO device after the client device establishes a secure connection with the GO device.

The transmitter 1902 is further configured to: when the information protection identifier information indicates that the client device allows the GO device to send device information of the client device to a P2P device supported by the client device according to a white list, After transmitting the information protection indication of the client device to the GO device, after the GO device establishes a secure connection with the client device, sending an encrypted whitelist to the GO device;

The whitelist includes the identifier information of the P2P device supported by the client device, or the identifier information of the P2P device supported by the client device, or the client device. The feature information of the supported P2P device; the P2P device supported by the client device is a P2P device that allows the client device to obtain its own device information.

A P2P group provided by the embodiment of the present invention includes: a GO device as shown in FIG. 18, and at least one client device as shown in FIG.

For the functions implemented by the modules or components in the foregoing embodiments, reference may be made to the corresponding processing steps in the processes shown in FIG. 2 to FIG. 15 , and details are not described herein again.

The P2P group discovery method, related device, and P2P group provided by the embodiment of the present invention, on the client device side, the client device determines whether the GO device needs to protect the device information of the client device, and sends the client device information to the GO device. a protection indication; on the GO device side, the GO device obtains an information protection indication of the client device; receives a P2P query request sent by the P2P device; and determines whether to carry the client in the response message sent to the P2P device according to the obtained information protection indication of the client device Device information of the device and send the response message to the P2P device. In the method for detecting a group of P2P groups provided by the embodiment of the present invention, the client device may determine, for itself, whether the GO device needs to protect the device information of the client device, and the client device determines whether the GO device is required for the client device. The information protection indication of the protection of the device information is sent to the GO device. When the GO device receives the P2P query message sent by the P2P device, the device information of all the client devices that have established the connection with the device is not sent to the P2P device to be added. And, according to the obtained information protection indication of the client device, the device information of the client device is sent to the P2P device for sending the device information to the client device to be joined to the P2P device, and the device information is not allowed to be sent to be added. The client device of the P2P device does not send the device information of the client device to the P2P device to be added, which improves the security of the device information of the client device.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present invention is directed to a method, apparatus (system), and computer program according to an embodiment of the present invention. The flow chart and/or block diagram of the product is described. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

While the preferred embodiment of the invention has been described, it will be understood that Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the invention without departing from the spirit and scope of the embodiments of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the embodiments of the invention.

Claims

A method for discovering a P2P group, comprising:

The GO device obtains an information protection indication of the client device;

The client device and the GO device belong to the P2P group, and the information protection indication is used to indicate whether the GO device needs to protect the device information of the client device.

Receiving, by the GO device, a P2P query message sent by the P2P device;

The GO device determines, according to the obtained information protection indication of the client device, whether the device information of the client device is carried in the response message sent to the P2P device;

The GO device sends the response message to the P2P device.
The method of claim 1, wherein the GO device obtains an information protection indication of the client device, specifically:

Before the GO device establishes a secure connection with the client device, the GO device receives an information protection indication sent by the client device.
The method of claim 1, wherein the GO device obtains an information protection indication of the client device, specifically:

After the GO device establishes a secure connection with the client device, the GO device receives an encrypted information protection indication sent by the client device.
The method according to claim 2 or 3, wherein the information protection indication carries information protection identification information, and the information protection identification information is used to indicate whether the client device allows the GO device to The device information of the client device is sent to the P2P device.

And determining, according to the obtained information protection indication of the client device, whether the device information of the client device is carried in the response message sent to the P2P device, specifically:

And when the information protection identifier information carried in the information protection indication of the client device indicates that the GO device is configured to send the device information of the client device to the P2P device, the GO device determines to send to the P2P device The response message carries the device information of the client device;

When the information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device, the GO device determines that the P2P device is in the P2P device. The device information of the client device is not carried in the response message sent.
The method according to claim 2 or 3, wherein the information protection indication carries information protection identification information; the information protection identification information is used to indicate whether the client device allows the GO device to follow the white list. Sending the device information of the client device to the P2P device supported by the client device;

When the information protection identifier information indicates that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the information protection indication further carries White list

The whitelist includes the identification information of the P2P device supported by the client device, or the information identifying the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the client device The supported P2P device is a P2P device that allows the client device to obtain device information of the client.
The method according to claim 5, wherein determining whether to carry the device information of the client device in the response message sent to the P2P device according to the obtained information protection indication of the client device includes:

When the information protection indication of the client device carries a whitelist, and the whitelist includes the information of the P2P device, or

When the information protection indication of the client device carries a whitelist, and the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist, the GO device determines that the P2P is in the P2P The device sends the response information of the client device to the response message sent by the device;

The information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, or

The information protection indication of the client device carries a whitelist, and the whitelist does not include Information of the P2P device, or

When the information protection indication of the client device carries a whitelist, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist, the GO device determines that the The device information of the client device is not carried in the response message sent by the P2P device.
The method of claim 2, wherein the information protection indication carries information protection identification information; the information protection identification information is used to indicate whether the client device allows the GO device to perform whitelisting The device information of the client device is sent to the P2P device supported by the client device;

When the information protection identifier information carried in the information protection indication of the client device indicates that the GO device is configured to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the method further includes: :

After the GO device establishes a secure connection with the client device, receiving an encrypted white list sent by the client device;

The whitelist includes the identifier information of the P2P device supported by the client device, or the identifier information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device. The P2P device supported by the client device is a P2P device that allows the client device to obtain its own device information.
The method of claim 7, wherein determining whether to carry the device information of the client device in the response message sent to the P2P device according to the obtained information protection indication of the client device includes:

Receiving a whitelist sent by the client device, where the whitelist includes information about the P2P device, or

When receiving the whitelist sent by the client device, and the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist, the GO device determines to send to the P2P device The response message carries the device information of the client device;

The information protection identifier information carried in the information protection indication of the client device is not allowed to be characterized The GO device sends the device information of the client device to the P2P device supported by the client device according to a whitelist, or

Receiving a whitelist sent by the client device, and the whitelist does not include information about the P2P device, or

When receiving the whitelist sent by the client device, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist, the GO device determines that the P2P device is in the P2P device. The device information of the client device is not carried in the response message sent.
The method of claim 1, wherein the GO device obtains an information protection indication of the client device, specifically:

After the GO device establishes a secure connection with the client device, receiving, by the corresponding interface of the GO device interface, an information protection indication for the client device;

The information protection indication is used to indicate whether the GO device is allowed to send device information of the client device to a P2P device that is not joined to the P2P group; or

The information protection indication is used to indicate whether the GO device is allowed to send the device information of the client device to the P2P device supported by the client device according to a whitelist; and when the information protection indication is used to indicate that the GO device is allowed to be When the device information of the client device is sent to the P2P device supported by the client device according to the whitelist, the information protection indication further includes a whitelist set for the client device;

The whitelist includes the identification information of the P2P device supported by the client device, or the information identifying the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the client device The supported P2P device is a P2P device that allows the client device to obtain device information of the client.
A method for discovering a P2P group, comprising:

The client device determines whether the GO device is required to protect the device information of the client device;

Sending, by the client device, an information protection indication of the client device to the GO device;

The client device and the GO device belong to the P2P group, and the information protection indication is used to indicate whether the GO device needs to protect the device information of the client device. The P2P device is a P2P device that is not added to the P2P group, and is configured to carry the device information of the client device in a response message sent to the P2P device according to the information protection indication of the client device.
The method according to claim 10, wherein the client device sends an information protection indication of the client device to the GO device, which specifically includes:

Before the GO device establishes a secure connection with the client device, the client device sends an information protection indication of the client device to the GO device.
The method according to claim 10, wherein the client device sends an information protection indication of the client device to the GO device, which specifically includes:

After the client device establishes a secure connection with the GO device, the client device sends an encrypted information protection indication to the GO device.
The method according to claim 11 or 12, wherein the information protection indication carries information protection identification information, and the information protection identification information is used to indicate whether the client device allows the GO device to The device information of the client device is sent to the P2P device.
The method according to claim 11 or 12, wherein the information protection indication carries information protection identification information, and the information protection identification information is used to indicate whether the client device allows the GO device to follow the white list. Sending the device information of the client device to the P2P device supported by the client device;

When the information protection identifier information indicates that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the information protection indication further carries White list

The whitelist includes the identification information of the P2P device supported by the client device, or the information identifying the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the client device The supported P2P device is a P2P device that allows the client device to obtain device information of the client.
The method of claim 11, wherein the information protection indication carries information protection identification information; the information protection identification information is used to indicate whether the client device is allowed The GO device sends the device information of the client device to the P2P device supported by the client device according to the whitelist;

When the information protection identifier information indicates that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, send the client to the GO device. After the device's information protection instructions, it also includes:

After the GO device establishes a secure connection with the client device, the client device sends an encrypted whitelist to the GO device;

The whitelist includes the identifier information of the P2P device supported by the client device, or the identifier information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device. The P2P device supported by the client device is a P2P device that allows the client device to obtain its own device information.
A GO device in a P2P group, comprising:

Obtaining a module, configured to obtain an information protection indication of the client device, where the client device and the GO device belong to the P2P group, and the information protection indication is used to indicate whether the GO device is required to be the client device Equipment information is protected;

a receiving module, configured to receive a P2P query message sent by the P2P device;

a determining module, configured to determine, according to the information protection indication of the client device obtained by the obtaining module, whether the device information of the client device is carried in a response message sent to the P2P device;

And a sending module, configured to send the response message to the P2P device.
The GO device according to claim 16, wherein the obtaining module is configured to receive an information protection indication sent by the client device before the GO device establishes a secure connection with the client device.
The GO device according to claim 16, wherein the obtaining module is configured to receive an encrypted information protection indication sent by the client device after the GO device establishes a secure connection with the client device.
A GO device according to claim 17 or 18, wherein said information protection The indication carries the information protection identifier information, where the information protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the P2P device;

The determining module is specifically configured to: when the information protection identifier information carried in the information protection indication of the client device is configured to allow the GO device to send the device information of the client device to the P2P device, determine the The device information of the client device is carried in the response message sent by the P2P device;

When the information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device, determine a response message sent to the P2P device. The device information of the client device is not carried in the device.
The GO device according to claim 17 or 18, wherein the information protection indication carries information protection identification information; the information protection identification information is used to indicate whether the client device allows the GO device to follow white The list sends the device information of the client device to the P2P device supported by the client device;

When the information protection identifier information indicates that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the information protection indication further carries White list

The whitelist includes the identification information of the P2P device supported by the client device, or the information identifying the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the client device The supported P2P device is a P2P device that allows the client device to obtain device information of the client.
The GO device according to claim 20, wherein the determining module is configured to: when the information protection indication of the client device carries a whitelist, and the whitelist includes the information of the P2P device ,or

The information protection indication of the client device carries a whitelist, and the P2P device determines the response sent to the P2P device when the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist. The message carrying the device information of the client device is included in the message;

The information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, or

The information protection indication of the client device carries a whitelist, and the whitelist does not include the information of the P2P device, or

When the information protection indication of the client device carries a whitelist, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist, determining that the P2P device sends the information to the P2P device. The device information of the client device is not carried in the response message.
The GO device according to claim 17, wherein the information protection indication carries information protection identification information; the information protection identification information is used to indicate whether the client device allows the GO device to follow a white list. Sending the device information of the client device to the P2P device supported by the client device;

The receiving module is further configured to: when the information protection indication information carried in the information protection indication of the client device indicates that the GO device is configured to send the device information of the client device to the P2P supported by the client device according to the whitelist Receiving, after the device establishes a secure connection with the client device, receiving an encrypted white list sent by the client device;

The whitelist includes the identifier information of the P2P device supported by the client device, or the identifier information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device. The P2P device supported by the client device is a P2P device that allows the client device to obtain its own device information.
The GO device according to claim 22, wherein the determining module is configured to: when the receiving module receives a whitelist sent by the client device, and the whitelist includes the P2P device Information, or

When the receiving module receives the whitelist sent by the client device, and the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist, it is determined that the P2P device is sent to the P2P device. The response message carries the device information of the client device;

The information protection identifier information carried in the information protection indication of the client device is not allowed to be characterized The GO device sends the device information of the client device to the P2P device supported by the client device according to a whitelist, or

When the receiving module receives the whitelist sent by the client device, and the whitelist does not include the information of the P2P device, or

When the receiving module receives the whitelist sent by the client device, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist, determining that the P2P device is in the P2P device The device information of the client device is not carried in the response message sent.
The GO device according to claim 16, wherein the obtaining module is configured to: after the GO device establishes a secure connection with the client device, receive, by using a corresponding interface of the GO device interface, Information protection indication of the client device;

The information protection indication is used to indicate whether the GO device is allowed to send device information of the client device to a P2P device that is not joined to the P2P group; or

The information protection indication is used to indicate whether the GO device is allowed to send the device information of the client device to the P2P device supported by the client device according to a whitelist; and when the information protection indication is used to indicate that the GO device is allowed to be When the device information of the client device is sent to the P2P device supported by the client device according to the whitelist, the information protection indication further includes a whitelist set for the client device;

The whitelist includes the identification information of the P2P device supported by the client device, or the information identifying the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the client device The supported P2P device is a P2P device that allows the client device to obtain device information of the client.
A client device in a P2P group, comprising:

a determining module, configured to determine whether a GO device is required to protect device information of the client device;

a sending module, configured to send, to the GO device, an information protection indication of the client device determined by the determining module;

The client device and the GO device belong to the P2P group, and the information protection The indication is used to indicate whether the GO device is required to protect device information of the client device, so that the GO device determines, according to the information protection indication of the client device, whether to carry the message in a response message sent to the P2P device. Device information of the client device, where the P2P device is a P2P device that is not added to the P2P group.
The client device according to claim 25, wherein the sending module is specifically configured to send information protection of the client device to the GO device before the GO device establishes a secure connection with the client device. Instructions.
The client device according to claim 25, wherein the sending module is configured to send an encrypted information protection indication to the GO device after the client device establishes a secure connection with the GO device.
The client device according to claim 26 or 27, wherein the information protection indication carries information protection identification information, and the information protection identification information is used to indicate whether the client device allows the GO device to The device information of the client device is sent to the P2P device.
The client device according to claim 26 or 27, wherein the information protection indication carries information protection identification information; the information protection identification information is used to indicate whether the client device allows the GO device to follow white The list sends the device information of the client device to the P2P device supported by the client device;

When the information protection identifier information indicates that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the information protection indication further carries White list

The whitelist includes the identification information of the P2P device supported by the client device, or the information identifying the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the client device The supported P2P device is a P2P device that allows the client device to obtain device information of the client.
The client device according to claim 26, wherein the information protection indication carries information protection identification information; and the information protection identification information is used to represent the client device Whether the GO device is allowed to send the device information of the client device to the P2P device supported by the client device according to a whitelist;

The sending module is further configured to: when the information protection identifier information indicates that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, After the GO device sends the information protection indication of the client device, after the GO device establishes a secure connection with the client device, the encrypted white list is sent to the GO device;

The whitelist includes the identifier information of the P2P device supported by the client device, or the identifier information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device. The P2P device supported by the client device is a P2P device that allows the client device to obtain its own device information.
A P2P group, comprising: a GO device according to claims 16-24, and at least one client device according to claims 25-30.
A GO device in a P2P group, comprising:

a processor, configured to obtain an information protection indication of the client device, where the client device and the GO device belong to the P2P group, and the information protection indication is used to indicate whether the GO device is required to be the client device Device information for protection;

a receiver, configured to receive a P2P query message sent by the P2P device;

The processor is further configured to: determine, according to the obtained information protection indication of the client device, whether the device information of the client device is carried in a response message sent to the P2P device;

And a transmitter, configured to send the response message to the P2P device.
The GO device according to claim 32, wherein the processor receives an information protection indication sent by the client device through the receiver before the GO device establishes a secure connection with the client device. .
The GO device according to claim 32, wherein the processor receives the encrypted information sent by the client device through the receiver after the GO device establishes a secure connection with the client device. Protection instructions.
The GO device according to claim 33 or claim 34, wherein the information protection indication carries information protection identification information, and the information protection identification information is used to indicate whether the client device allows the GO device to The device information of the client device is sent to the P2P device;

The processor is specifically configured to: when the information protection identifier information carried in the information protection indication of the client device indicates that the GO device is configured to send the device information of the client device to the P2P device, determine The device information of the client device is carried in the response message sent by the P2P device;

When the information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device, determine a response message sent to the P2P device. The device information of the client device is not carried in the device.
The GO device according to claim 33 or claim 34, wherein the information protection indication carries information protection identification information; the information protection identification information is used to indicate whether the client device allows the GO device to follow white The list sends the device information of the client device to the P2P device supported by the client device;

When the information protection identifier information indicates that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the information protection indication further carries White list

The whitelist includes the identification information of the P2P device supported by the client device, or the information identifying the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the client device The supported P2P device is a P2P device that allows the client device to obtain device information of the client.
The GO device according to claim 36, wherein the processor is configured to: when the information protection indication of the client device carries a whitelist, and the whitelist includes the information of the P2P device ,or

When the information protection indication of the client device carries a whitelist, and the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist, The device information of the client device is carried in the response message sent by the P2P device;

The information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, or

The information protection indication of the client device carries a whitelist, and the whitelist does not include the information of the P2P device, or

When the information protection indication of the client device carries a whitelist, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist, determining that the P2P device sends the information to the P2P device. The device information of the client device is not carried in the response message.
The GO device according to claim 33, wherein the information protection indication carries information protection identification information; the information protection identification information is used to indicate whether the client device allows the GO device to follow a white list. Sending the device information of the client device to the P2P device supported by the client device;

The receiver is further configured to: when the information protection indication information carried in the information protection indication of the client device indicates that the GO device is configured to send the device information of the client device to the P2P supported by the client device according to the whitelist. Receiving, after the device establishes a secure connection with the client device, receiving an encrypted white list sent by the client device;

The whitelist includes the identifier information of the P2P device supported by the client device, or the identifier information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device. The P2P device supported by the client device is a P2P device that allows the client device to obtain its own device information.
The GO device according to claim 38, wherein the processor is configured to: when the receiver receives a whitelist sent by the client device, and the whitelist includes the P2P device Information, or

When the receiver receives the whitelist sent by the client device, and the P2P device meets the feature information of the P2P device supported by the client device included in the whitelist, it is determined that the P2P device is sent to the P2P device. The response message carries the device information of the client device;

The information protection identifier information carried in the information protection indication of the client device does not allow the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, or

When the receiver receives the whitelist sent by the client device, and the whitelist does not include the information of the P2P device, or

When the receiver receives the whitelist sent by the client device, and the P2P device does not meet the feature information of the P2P device supported by the client device included in the whitelist, determining that the P2P device is in the P2P device The device information of the client device is not carried in the response message sent.
The GO device according to claim 32, wherein the processor is configured to receive, after the GO device establishes a secure connection with the client device, a corresponding interface of the GO device interface, Information protection indication of the client device;

The information protection indication is used to indicate whether the GO device is allowed to send device information of the client device to a P2P device that is not joined to the P2P group; or

The information protection indication is used to indicate whether the GO device is allowed to send the device information of the client device to the P2P device supported by the client device according to a whitelist; and when the information protection indication is used to indicate that the GO device is allowed to be When the device information of the client device is sent to the P2P device supported by the client device according to the whitelist, the information protection indication further includes a whitelist set for the client device;

The whitelist includes the identification information of the P2P device supported by the client device, or the information identifying the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the client device The supported P2P device is a P2P device that allows the client device to obtain device information of the client.
A client device in a P2P group, comprising:

a processor, configured to determine whether a GO device is required to protect device information of the client device;

a transmitter, configured to send, to the GO device, an information protection indication of the client device determined by the processor;

The client device belongs to the P2P group and the information protection indication is used to indicate whether the GO device needs to protect the device information of the client device, so that the GO device is configured according to the The information protection indication of the client device determines whether the device information of the client device is carried in the response message sent to the P2P device, where the P2P device is a P2P device that is not added to the P2P group.
The client device according to claim 41, wherein the sender is specifically configured to send information protection of the client device to the GO device before the GO device establishes a secure connection with the client device. Instructions.
The client device according to claim 41, wherein the sender is specifically configured to send an encrypted information protection indication to the GO device after the client device establishes a secure connection with the GO device.
The client device according to claim 42 or 43, wherein the information protection indication carries information protection identification information, and the information protection identification information is used to indicate whether the client device allows the GO device to The device information of the client device is sent to the P2P device.
The client device according to claim 42 or 43, wherein the information protection indication carries information protection identification information; and the information protection identification information is used to indicate whether the client device allows the GO device to follow white The list sends the device information of the client device to the P2P device supported by the client device;

When the information protection identifier information indicates that the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist, the information protection indication further carries White list

The whitelist includes the identification information of the P2P device supported by the client device, or the information identifying the identification information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device; the client device The supported P2P device is a P2P device that allows the client device to obtain device information of the client.
A client device according to claim 42, wherein said information protection indication And carrying the information protection identifier information, where the information protection identifier information is used to indicate whether the client device allows the GO device to send the device information of the client device to the P2P device supported by the client device according to the whitelist;

The sender is further configured to: when the information protection identifier information indicates that the client device allows the GO device to send device information of the client device to a P2P device supported by the client device according to a white list, After the GO device sends the information protection indication of the client device, after the GO device establishes a secure connection with the client device, the encrypted white list is sent to the GO device;

The whitelist includes the identifier information of the P2P device supported by the client device, or the identifier information of the P2P device supported by the client device, or the feature information of the P2P device supported by the client device. The P2P device supported by the client device is a P2P device that allows the client device to obtain its own device information.
A P2P group, comprising: a GO device according to claims 32-40, and at least one client device according to claims 41-46.