CN118102312A - Bluetooth communication method and system of wearable device - Google Patents
Bluetooth communication method and system of wearable device Download PDFInfo
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- CN118102312A CN118102312A CN202311819691.3A CN202311819691A CN118102312A CN 118102312 A CN118102312 A CN 118102312A CN 202311819691 A CN202311819691 A CN 202311819691A CN 118102312 A CN118102312 A CN 118102312A
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- 238000004891 communication Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000012795 verification Methods 0.000 claims abstract description 49
- 230000003993 interaction Effects 0.000 claims abstract description 36
- 238000004364 calculation method Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 6
- 230000007547 defect Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004590 computer program Methods 0.000 description 6
- 238000004422 calculation algorithm Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 230000000644 propagated effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000013307 optical fiber Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/50—Secure pairing of devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
- H04W12/041—Key generation or derivation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
- H04W12/043—Key management, e.g. using generic bootstrapping architecture [GBA] using a trusted network node as an anchor
- H04W12/0433—Key management protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/30—Security of mobile devices; Security of mobile applications
- H04W12/33—Security of mobile devices; Security of mobile applications using wearable devices, e.g. using a smartwatch or smart-glasses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a Bluetooth communication method and a Bluetooth communication system of a wearable device, which are used for connecting the wearable device with external electronic equipment, wherein the method comprises the following steps: receiving a pairing request sent by electronic equipment, and performing pairing verification according to the pairing request; obtaining a pairing verification result, and if the pairing verification is passed, generating an intermediate key; establishing Bluetooth communication connection between the electronic equipment and the wearable equipment according to the intermediate secret key so as to perform data interaction; during interaction, updating the intermediate key based on each interaction request; the beneficial effects are as follows: in the verification process, whether verification is passed or not is judged based on a secret key between the wearable equipment and the electronic equipment; if the data passes, an intermediate key is generated, and Bluetooth communication connection is established to perform data interaction; meanwhile, during interaction, the intermediate secret key is updated based on each interaction request; therefore, the defects that the password is fixed and potential safety hazards exist after the matched connection at present are overcome.
Description
Technical Field
The invention relates to the technical field of Bluetooth communication, in particular to a Bluetooth communication method and system of wearable equipment.
Background
With the rapid development of the scientific technology, the Bluetooth technology is also becoming more and more popular, and Bluetooth is a wireless technology standard, can realize short-distance data exchange between devices, and is widely applied to wearable devices.
At present, the wearable equipment is widely applied to various fields such as biomedicine, intelligent education, intelligent home and sports health. The Bluetooth technology facilitates interaction between the wearable device and other electronic devices, and because the wearable device is generally only used for connecting a safety protection mechanism at a client end such as a mobile phone and the like in order to improve the endurance time and reduce the power consumption, and after the wearable device is connected in a pairing mode, the password is relatively fixed, so that potential safety hazards exist; therefore, how to improve the security of the wearable device during bluetooth communication needs to be solved.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a Bluetooth communication method and a Bluetooth communication system of a wearable device, so as to improve the safety of communication.
First aspect: the embodiment of the invention provides a Bluetooth communication method of a wearable device, which is used for connecting the wearable device with external electronic equipment, and comprises the following steps:
receiving a pairing request sent by the electronic equipment, and performing pairing verification according to the pairing request;
obtaining a pairing verification result, and if the pairing verification is passed, generating an intermediate key;
establishing Bluetooth communication connection between the electronic equipment and the wearable equipment according to the intermediate key so as to perform data interaction;
During interaction, the intermediate key is updated based on each interaction request.
As an optional embodiment of the present application, the pairing verification specifically includes:
Receiving a pairing request sent by the electronic equipment; the pairing request comprises a Bluetooth address and first random information of the electronic equipment;
Generating second random information in response to the pairing connection, and transmitting the second random information to the electronic device;
calculating based on the first random information, the second random information and the Bluetooth address of the electronic equipment to generate a temporary key;
And acquiring an authentication key generated by the electronic equipment, and if the authentication key is equal to the temporary key, passing the pairing verification.
As an optional embodiment of the present application, the bluetooth address includes a bluetooth MAC address and a bluetooth random address; when the temporary key is generated, random number selection is performed based on a preset pseudo-random number generator so as to participate in key calculation.
As an alternative embodiment of the present application, the method further comprises:
performing pairing verification based on preset updating conditions; wherein the update condition includes a preset time period and reconnection.
As an optional implementation manner of the present application, when the second random information is generated, the number of the generated second random information is a plurality of, so as to calculate a plurality of temporary keys;
And sending one of the second random information to the electronic equipment to participate in the generation of the authentication key, and if the authentication key is equal to any one of the temporary keys, passing the pairing verification.
As an alternative embodiment of the present application, the method further comprises:
And judging the validity of the connected electronic equipment based on the received message format.
Second aspect: the embodiment of the invention provides a Bluetooth communication system of a wearable device, which is used for connecting the wearable device with external electronic equipment, and comprises the following steps:
The pairing module is used for receiving a pairing request sent by the electronic equipment and carrying out pairing verification according to the pairing request;
a processing module for:
obtaining a pairing verification result, and if the pairing verification is passed, generating an intermediate key;
establishing Bluetooth communication connection between the electronic equipment and the wearable equipment according to the intermediate key so as to perform data interaction;
and the updating module is used for updating the intermediate key based on each interaction request during interaction.
As an optional embodiment of the present application, the pairing verification specifically includes:
Receiving a pairing request sent by the electronic equipment; the pairing request comprises a Bluetooth address and first random information of the electronic equipment;
Generating second random information in response to the pairing connection, and transmitting the second random information to the electronic device;
calculating based on the first random information, the second random information and the Bluetooth address of the electronic equipment to generate a temporary key;
And acquiring an authentication key generated by the electronic equipment, and if the authentication key is equal to the temporary key, passing the pairing verification.
As an optional embodiment of the present application, the bluetooth address includes a bluetooth MAC address and a bluetooth random address; when the temporary key is generated, random number selection is performed based on a preset pseudo-random number generator so as to participate in key calculation.
As an optional implementation manner of the present application, when the second random information is generated, the number of the generated second random information is a plurality of, so as to calculate a plurality of temporary keys;
And sending one of the second random information to the electronic equipment to participate in the generation of the authentication key, and if the authentication key is equal to any one of the temporary keys, passing the pairing verification.
By adopting the technical scheme, the method has the following advantages: according to the Bluetooth communication method and system of the wearable device, in the verification process, whether verification is passed or not is judged based on the secret key between the wearable device and the electronic device; if the data is passed, an intermediate key is generated, and Bluetooth communication connection between the electronic equipment and the wearable equipment is established so as to perform data interaction; meanwhile, during interaction, the intermediate key is updated based on each interaction request, so that the intermediate key is prevented from being fixed after pairing is completed; therefore, the defects that the password is fixed and potential safety hazards exist after the matched connection at present are overcome, and the safety of communication is improved.
Drawings
Fig. 1 is a flowchart of a bluetooth communication method of a wearable device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a bluetooth communication system of a wearable device according to an embodiment of the present invention.
Detailed Description
Specific embodiments of the invention will be described in detail below, it being noted that the embodiments described herein are for illustration only and are not intended to limit the invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: no such specific details are necessary to practice the invention. In other instances, well-known circuits, software, or methods have not been described in detail in order not to obscure the invention.
Throughout the specification, references to "one embodiment," "an embodiment," "one example," or "an example" mean: a particular feature, structure, or characteristic described in connection with the embodiment or example is included within at least one embodiment of the invention. Thus, the appearances of the phrases "in one embodiment," "in an embodiment," "one example," or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Moreover, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and that the illustrations are not necessarily drawn to scale.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a bluetooth communication method of a wearable device, for connection of the wearable device with an external electronic device, includes:
s101, receiving a pairing request sent by the electronic equipment, and performing pairing verification according to the pairing request.
Specifically, the wearable device and the electronic device comprise an adapted Bluetooth module, a storage module, a processing module and the like; the wearable equipment comprises intelligent glasses, watches, bracelets and the like;
the pairing verification specifically comprises the following steps:
Receiving a pairing request sent by the electronic equipment; the pairing request comprises a Bluetooth address and first random information of the electronic equipment;
Generating second random information in response to the pairing connection, and transmitting the second random information to the electronic device;
calculating based on the first random information, the second random information and the Bluetooth address of the electronic equipment to generate a temporary key;
And acquiring an authentication key generated by the electronic equipment, and if the authentication key is equal to the temporary key, passing the pairing verification.
It should be noted that, the first random information and the second random information are respectively generated random numbers, and the random numbers generated by the first random information and the second random information participate in authentication calculation to ensure that replay attack can be prevented in the pairing process; according to the Bluetooth protocol flow, the two parties can mutually obtain the Bluetooth MAC address of the other party in the connection discovery stage;
Correspondingly, the authentication key generated by the electronic equipment is obtained by calculation according to the first random information, the second random information and the Bluetooth address of the wearable equipment;
The electronic device also obtains a temporary key of the wearable device and confirms whether the temporary key and the temporary key are the same;
and if the two are confirmed to pass, the negotiation is successful, and the two parties generate the same secret key.
S102, obtaining a pairing verification result, and if the pairing verification is passed, generating an intermediate key.
Specifically, a session key is generated by utilizing an encryption algorithm, wherein the session key is the intermediate key; the encryption algorithm may be an asymmetric encryption algorithm among national encryption algorithms.
S103, establishing Bluetooth communication connection between the electronic equipment and the wearable equipment according to the inter-secret key so as to perform data interaction;
and S104, during interaction, updating the intermediate key based on each interaction request.
Specifically, the data transmission is carried out once by once interaction request, and the change value of the request is used for generating the intermediate key of the next interaction, so that the keys transmitted each time are ensured to be different, and the defect that after the existing pairing is completed, both paired parties use a long-term key is avoided, and the two devices can omit the pairing process.
In application, in order to improve safety, the Bluetooth address comprises a Bluetooth MAC address and a Bluetooth random address; when the temporary key is generated, random number selection is performed based on a preset pseudo-random number generator so as to participate in key calculation.
Meanwhile, on the basis of the scheme, the method further comprises the following steps:
Performing pairing verification based on preset updating conditions; wherein the update condition comprises a preset time period and reconnection; wherein the reconnection is a reconnection of the same device, such that devices that are no longer connected by default are automatically connected.
Further, when the second random information is generated, the generated number is a plurality of, so that a plurality of temporary keys are calculated;
And sending one of the second random information to the electronic equipment to participate in the generation of the authentication key, and if the authentication key is equal to any one of the temporary keys, passing the pairing verification.
In the scheme, whether the verification is passed or not is judged based on the secret key between the wearable equipment and the electronic equipment in the verification process; if the data is passed, an intermediate key is generated, and Bluetooth communication connection between the electronic equipment and the wearable equipment is established so as to perform data interaction; meanwhile, during interaction, the intermediate key is updated based on each interaction request, so that the intermediate key is prevented from being fixed after pairing is completed; therefore, the defects that the password is fixed and potential safety hazards exist after the matched connection at present are overcome, and the safety of communication is improved.
Further, to improve the security of communication, another embodiment is based on the above scheme, the method further includes:
Judging the validity of the connected electronic equipment based on the received message format; the judgment is based on the historical message format of the electronic equipment or preset legal format information.
Further, the method further comprises:
Based on the acquired data volume, carrying out safe connection judgment, and if the data volume exceeds a set threshold value, disconnecting the connection; this is because the amount of data of the wearable device is typically small, indicating that there may be an attack threat if the amount of data suddenly increases; the threshold may be set dynamically, either with a fixed value or based on historical interaction conditions, without limitation.
Based on the same inventive concept, referring to fig. 2, an embodiment of the present invention further provides a bluetooth communication system of a wearable device, for connection between the wearable device and an external electronic device, the system including:
The pairing module is used for receiving a pairing request sent by the electronic equipment and carrying out pairing verification according to the pairing request;
a processing module for:
obtaining a pairing verification result, and if the pairing verification is passed, generating an intermediate key;
establishing Bluetooth communication connection between the electronic equipment and the wearable equipment according to the intermediate key so as to perform data interaction;
and the updating module is used for updating the intermediate key based on each interaction request during interaction.
The pairing verification specifically comprises the following steps:
Receiving a pairing request sent by the electronic equipment; the pairing request comprises a Bluetooth address and first random information of the electronic equipment;
Generating second random information in response to the pairing connection, and transmitting the second random information to the electronic device;
calculating based on the first random information, the second random information and the Bluetooth address of the electronic equipment to generate a temporary key;
And acquiring an authentication key generated by the electronic equipment, and if the authentication key is equal to the temporary key, passing the pairing verification.
Meanwhile, the Bluetooth address comprises a Bluetooth MAC address and a Bluetooth random address; when a temporary key is generated, random number selection is performed based on a preset pseudo-random number generator so as to participate in key calculation;
when the second random information is generated, the number of the generated random information is a plurality of random information, so that a plurality of temporary keys are calculated;
And sending one of the second random information to the electronic equipment to participate in the generation of the authentication key, and if the authentication key is equal to any one of the temporary keys, passing the pairing verification.
Further, on the basis of the above scheme, the pairing module is further configured to:
Performing pairing verification based on preset updating conditions; wherein the update condition comprises a preset time period and reconnection; wherein the reconnection is a reconnection of the same device, such that devices that are no longer connected by default are automatically connected.
The processing module is further configured to: judging the validity of the connected electronic equipment based on the received message format; the judgment is based on the historical message format of the electronic equipment or preset legal format information.
In the foregoing system claims, the specific implementation and the beneficial effects of each step are referred to in the foregoing method embodiment section, and are not repeated herein.
Through the scheme, during interaction, the intermediate key is updated based on each interaction request, so that the intermediate key is prevented from being fixed after pairing is completed; therefore, the defects that the password is fixed and potential safety hazards exist after the matched connection at present are overcome, and the safety of communication is improved.
In another embodiment of the present invention, a non-volatile computer storage medium is provided in an embodiment of the present disclosure, where the computer storage medium stores a computer program executable by a computer to perform the method of any of the method embodiments described above.
The processes described above with reference to flowcharts may be implemented as computer software programs according to embodiments of the present disclosure. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flowcharts. In such an embodiment, the computer program may be downloaded and installed from a network via a communication device, or installed from a storage device, or installed from ROM. The above-described functions defined in the methods of the embodiments of the present disclosure are performed when the computer program is executed by a processing device.
It should be noted that the computer readable medium described in the present disclosure may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this disclosure, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limited thereto; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (10)
1. A bluetooth communication method for a wearable device, for connection of the wearable device with an external electronic device, the method comprising:
receiving a pairing request sent by the electronic equipment, and performing pairing verification according to the pairing request;
obtaining a pairing verification result, and if the pairing verification is passed, generating an intermediate key;
establishing Bluetooth communication connection between the electronic equipment and the wearable equipment according to the intermediate key so as to perform data interaction;
During interaction, the intermediate key is updated based on each interaction request.
2. The bluetooth communication method of a wearable device according to claim 1, wherein the pairing verification specifically includes:
Receiving a pairing request sent by the electronic equipment; the pairing request comprises a Bluetooth address and first random information of the electronic equipment;
Generating second random information in response to the pairing connection, and transmitting the second random information to the electronic device;
calculating based on the first random information, the second random information and the Bluetooth address of the electronic equipment to generate a temporary key;
And acquiring an authentication key generated by the electronic equipment, and if the authentication key is equal to the temporary key, passing the pairing verification.
3. The method of claim 2, wherein the bluetooth address comprises a bluetooth MAC address and a bluetooth random address; when the temporary key is generated, random number selection is performed based on a preset pseudo-random number generator so as to participate in key calculation.
4. A method of bluetooth communication for a wearable device according to claim 3, the method further comprising:
performing pairing verification based on preset updating conditions; wherein the update condition includes a preset time period and reconnection.
5. The method for bluetooth communication in a wearable device according to claim 2, wherein when the second random information is generated, the number of the generated second random information is a plurality of second random information, so as to calculate a plurality of temporary keys;
And sending one of the second random information to the electronic equipment to participate in the generation of the authentication key, and if the authentication key is equal to any one of the temporary keys, passing the pairing verification.
6. The method of bluetooth communication for a wearable device according to claim 5, further comprising:
And judging the validity of the connected electronic equipment based on the received message format.
7. A bluetooth communication system for a wearable device, for connection of the wearable device with an external electronic device, the system comprising:
The pairing module is used for receiving a pairing request sent by the electronic equipment and carrying out pairing verification according to the pairing request;
a processing module for:
obtaining a pairing verification result, and if the pairing verification is passed, generating an intermediate key;
establishing Bluetooth communication connection between the electronic equipment and the wearable equipment according to the intermediate key so as to perform data interaction;
and the updating module is used for updating the intermediate key based on each interaction request during interaction.
8. The bluetooth communication system for a wearable device according to claim 7, wherein the pairing verification specifically comprises:
Receiving a pairing request sent by the electronic equipment; the pairing request comprises a Bluetooth address and first random information of the electronic equipment;
Generating second random information in response to the pairing connection, and transmitting the second random information to the electronic device;
calculating based on the first random information, the second random information and the Bluetooth address of the electronic equipment to generate a temporary key;
And acquiring an authentication key generated by the electronic equipment, and if the authentication key is equal to the temporary key, passing the pairing verification.
9. The bluetooth communication system of a wearable device according to claim 7, wherein the bluetooth address comprises a bluetooth MAC address and a bluetooth random address; when the temporary key is generated, random number selection is performed based on a preset pseudo-random number generator so as to participate in key calculation.
10. The bluetooth communication system for a wearable device according to claim 8, wherein the number of the generated second random information is plural, thereby calculating plural temporary keys;
And sending one of the second random information to the electronic equipment to participate in the generation of the authentication key, and if the authentication key is equal to any one of the temporary keys, passing the pairing verification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311819691.3A CN118102312A (en) | 2023-12-26 | 2023-12-26 | Bluetooth communication method and system of wearable device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311819691.3A CN118102312A (en) | 2023-12-26 | 2023-12-26 | Bluetooth communication method and system of wearable device |
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