CN110225014B - Internet of things equipment identity authentication method based on fingerprint centralized issuing mode - Google Patents
Internet of things equipment identity authentication method based on fingerprint centralized issuing mode Download PDFInfo
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- CN110225014B CN110225014B CN201910462429.5A CN201910462429A CN110225014B CN 110225014 B CN110225014 B CN 110225014B CN 201910462429 A CN201910462429 A CN 201910462429A CN 110225014 B CN110225014 B CN 110225014B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
- H04L63/0838—Network architectures or network communication protocols for network security for authentication of entities using passwords using one-time-passwords
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0861—Network architectures or network communication protocols for network security for authentication of entities using biometrical features, e.g. fingerprint, retina-scan
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Abstract
The invention relates to an identity authentication method of Internet of things equipment based on a centralized fingerprint issuing mode, which does not need to provide a fingerprint acquisition module on each piece of equipment, and reduces the production cost of the equipment; the user does not need to carry out fingerprint acquisition on each device, so that the intervention of the user is reduced, and the operation is more convenient and faster; because the collected information is difficult to be ensured to be consistent every time of fingerprint collection, the success rate is higher when the fingerprints are matched by adopting a uniform distribution mode. The process of identity authentication between equipment through fingerprints is completed through a series of steps of random cutting of the fingerprints, slice encryption transmission, decryption, image matching and the like. And a corresponding solution is provided for the possible identity authentication attack of the Internet of things, so that the security and reliability of identity authentication between equipment and between users and equipment are greatly improved. The method has wide market prospect in the aspects of military management, intelligent home, warehouse management, commerce and the like.
Description
Technical Field
The invention relates to a device security authentication technology in the Internet of things, in particular to an Internet of things device identity authentication method based on a fingerprint centralized issuing mode.
Background
The internet of things is an important component of a new generation of information technology, and is a technological surge of another information industry after computers and the internet. At present, the technology of the internet of things is in a high-speed development stage, and the life of people is influenced and changed in a wider range in future. But it is also worth noting that while the internet of things technology is enjoyed to bring convenience to our lives, the development of the internet of things also faces various challenges such as market fragmentation, lack of uniform access standards, insufficient equipment safety performance and the like. Especially in terms of safety, once a safety problem occurs, it may even directly jeopardize the personal safety of the user. Therefore, reliable and effective safety guarantee is the premise of continuous and stable operation of the Internet of things system. Identity authentication and data privacy disclosure of internet of things equipment are two main factors restricting rapid development of the internet of things.
Currently, scholars propose a dynamic password technology and a static password technology in the aspect of authentication technology, but the use of the static password in the environment of the internet of things easily leads to low security of the system. In addition, the digital certificate as the main authentication method increases the time delay and reduces the efficiency.
Disclosure of Invention
The invention provides an identity authentication method of Internet of things equipment based on a fingerprint centralized issuing mode, aiming at the problems of low static password security and large digital certificate delay in the Internet of things environment, and aims to realize convenient, quick, safe and credible identity authentication.
The technical scheme of the invention is as follows: an internet of things equipment identity authentication method based on a fingerprint centralized issuing mode is characterized in that under the condition that a communication key M1 between internet of things equipment is safe and cannot be stolen, the identity authentication method comprises the following steps:
1) a user logs in an equipment configuration interface through an initial configuration account password of the Internet of things security gateway and modifies an equipment management password; configuring equipment related information; inputting a fingerprint through a fingerprint acquisition module, and setting an inter-device communication key M1;
2) the Internet of things security gateway stores a communication key M1 and uses M1 to encrypt and store the acquired fingerprint information; after the user finishes the first configuration, when the equipment configuration information is modified again, the user can enter a gateway configuration interface to modify the gateway related configuration only by matching the password and the fingerprint at the same time;
3) when a new device A needs to be added into the network, a user logs in a device configuration interface through an initial configuration account password of the device A and modifies a device management password; configuring relevant information of the equipment to enable the equipment to be normally connected to the Internet of things security gateway; and setting an inter-device communication key M1;
4) when the intelligent gateway detects that a new device is normally connected to the network, the intelligent gateway randomly encrypts a string of characters S1 by using a secret key M1 and sends the string of characters S1 to a device A, after the device A receives a data packet of the gateway, the device A uses M1 to unpack the data packet, and sends plaintext information of the unpacked string of characters S2 to the intelligent gateway;
5) after receiving the information sent by the device A, the intelligent gateway compares the character strings S2 with S1, and after judging that S1 is consistent with S2, the intelligent gateway sends the fingerprint information encrypted by using M1 to the device A, so that the device A can receive the encrypted fingerprint information;
similarly, when the device B or other devices join the internet of things network, and want to acquire the fingerprint data packet, the operations are the same as the above steps 3) to 5);
6) when the device A needs to perform identity authentication with the device B, the device A firstly decrypts the stored fingerprint information by using the secret key M1, and after the decryption of the fingerprint information is completed, the device A randomly cuts the fingerprint picture to obtain a fingerprint image slice P1, and the area of the fingerprint slice P1 is not less than alpha% of the original fingerprint area.
7) The device A encrypts the fingerprint image slice P1 by using a symmetric encryption algorithm and taking M1 as an encryption key, and transmits an encrypted fingerprint slice data packet to the device B through a trusted network channel;
8) after receiving the data packet sent by the device A, the device B decrypts the received data packet by using the communication key M1 to restore the plaintext information of the fingerprint image slice P1; meanwhile, the encrypted and stored fingerprint information is decrypted by using a secret key M1 to obtain the plaintext information of the complete fingerprint;
9) the device B performs image matching on the fingerprint image slice P1 and the stored original input fingerprint information, and when the similarity reaches a set similarity beta, the matching is successful, and the identity authentication is successful, the device B sends a return value of the authentication success to the device A; when the matching result does not meet the requirement and the identity authentication fails, the equipment B sends a return value of the authentication failure to the equipment A;
10) after the device A successfully receives the successfully matched return value of the device B and confirms the identity of the return value sender, the identity authentication process is completed, and subsequent related operations such as communication, management, control or data sharing among devices can be carried out; and if the authentication failure result is received, the identity authentication is tried again through the operations of the steps 6) to 9).
The invention has the beneficial effects that: the identity authentication method of the Internet of things equipment based on the centralized issuing of the fingerprints realizes the identity authentication of the Internet of things equipment based on fingerprint identification; the information security of the identity authentication of the equipment of the Internet of things is protected; a fingerprint acquisition module is not required to be arranged on each device, so that the production cost of the device is reduced; the user does not need to carry out fingerprint acquisition on each device, so that the intervention of the user is reduced, and the operation is more convenient and faster; because the consistency of the acquired information is difficult to ensure in each fingerprint acquisition, the success rate is higher when the fingerprints are matched by adopting a uniform distribution mode; the method has wide market prospect in the aspects of military management, intelligent home, warehouse management, commerce and the like.
Drawings
FIG. 1 is a schematic diagram of the identity authentication information interaction process of the device of the present invention;
FIG. 2 is a schematic diagram of the overall process of issuing encrypted fingerprint information by an intelligent gateway of the Internet of things;
fig. 3 is a schematic diagram of the whole process of identity authentication of internet of things equipment issued based on fingerprints.
Detailed Description
The equipment identity card authentication comprises a fingerprint acquisition and encryption storage module, a key authentication and fingerprint issuing module, a fingerprint segmentation module, a slice encryption module and a fingerprint matching module.
Fingerprint collection and encryption storage module: a user logs in an equipment configuration interface through an initial configuration account password of the Internet of things security gateway and modifies an equipment management password; configuring equipment related information; and recording the fingerprint through a fingerprint acquisition module, and setting an inter-device communication key M1. The internet of things security gateway stores the communication key M1 and uses M1 to encrypt and store the collected fingerprint information. After the user finishes the first configuration, the user can enter a gateway configuration interface to modify the gateway related configuration only by simultaneously matching the password and the fingerprint when modifying the configuration for the second time. This can prevent malicious attacks on the security gateway device by attackers.
The key verification and fingerprint issuing module: when the gateway detects that the new device is normally connected to the network, the intelligent gateway firstly encrypts a random character string S1 by using an inter-device communication key M1 and sends the random character string S1 to the device A, and after receiving a data packet of the gateway, the device A uses M1 to unpack the data packet and sends the unpacked character string S2 to the intelligent gateway. After receiving the information of the device A, the intelligent gateway compares the character strings S2 with S1, and after judging that S1 is consistent with S2, the intelligent gateway sends the fingerprint information encrypted by using M1 to the device A, so that the device A can receive the encrypted complete fingerprint information;
a fingerprint segmentation module: when the device A needs to perform identity authentication with the device B, the device A firstly decrypts the stored fingerprint information by using the secret key M1, and after the decryption of the fingerprint information is completed, the device A randomly cuts the fingerprint picture to obtain a fingerprint slice P1, and the area of the fingerprint slice P1 is not less than alpha% (parameter) of the original fingerprint area.
A slice encryption module: the device a encrypts the fingerprint slice P1 by using a symmetric encryption algorithm and using a key M1 (inter-device communication key) as an encryption key, and transmits an encrypted data packet (the data packet contains fingerprint image slice P1 information) to the device B through a trusted network channel.
Fingerprint matching module:
1. after receiving the data packet sent by the device A, the device B decrypts the received data packet by using the communication key M1 to restore the plaintext information of the fingerprint image slice P1; meanwhile, the original fingerprint information is decrypted by using the secret key M1, and the plaintext information of the original fingerprint is obtained.
2. The device B carries out image matching on the fingerprint image slice P1 and the original fingerprint information, when the similarity reaches beta (matching similarity), the matching is successful, and when the identity authentication is successful, the device B sends a return value of the successful authentication to the device A; when the matching result does not meet the requirement and the identity authentication fails, the equipment B sends a return value of the authentication failure to the equipment A;
3. after the device A successfully receives the successfully matched return value of the device B and confirms the identity of the return value sender, the identity authentication process is completed, and subsequent related operations such as communication, management, control or data sharing among devices can be carried out; and if the result of authentication failure is received, the operation is tried again for identity authentication.
Fig. 1 is a schematic diagram of an apparatus authentication information interaction process. Assuming that the communication link is secure and reliable; it is assumed that the inter-device communication key M1 is secure and cannot be stolen. The method for authenticating the identity of the equipment shown in fig. 2 and 3 is as follows:
the first step is as follows: a user logs in an equipment configuration interface through an initial configuration account password of the Internet of things security gateway and modifies an equipment management password; configuring equipment related information; inputting a fingerprint through a fingerprint acquisition module, and setting an inter-device communication key M1;
the second step is that: the Internet of things security gateway stores a communication key M1 and uses M1 to encrypt and store the acquired fingerprint information; after the user finishes the first configuration, when the equipment configuration information is modified again, the user can enter a gateway configuration interface to modify the gateway related configuration only by matching the password and the fingerprint at the same time;
the third step: when a new device A needs to be added into the network, a user logs in a device configuration interface through an initial configuration account password of the device A and modifies a device management password; configuring relevant information of the equipment to enable the equipment to be normally connected to the Internet of things security gateway; and setting an inter-device communication key M1;
the fourth step: when the intelligent gateway detects that a new device is normally connected to the network, the intelligent gateway randomly encrypts a string of characters S1 by using a secret key M1 and sends the string of characters S1 to a device A, after the device A receives a data packet of the gateway, the device A uses M1 to unpack the data packet, and sends plaintext information of the unpacked string of characters S2 to the intelligent gateway;
the fifth step: after receiving the information sent by the device A, the intelligent gateway compares the character strings S2 with S1, and after judging that S1 is consistent with S2, the intelligent gateway sends the fingerprint information encrypted by using M1 to the device A, so that the device A can receive the encrypted fingerprint information;
similarly, when the device B or other devices are added into the Internet of things network, the operation is the same as the steps 3 to 5 when the fingerprint data packet is acquired;
and a sixth step: when the device A needs to perform identity authentication with the device B, the device A firstly decrypts the stored fingerprint information by using the secret key M1, and after the decryption of the fingerprint information is completed, the device A randomly cuts the fingerprint picture to obtain a fingerprint image slice P1, and the area of the fingerprint slice P1 is not less than alpha% of the original fingerprint area.
The seventh step: the device A encrypts the fingerprint image slice P1 by using a symmetric encryption algorithm and taking M1 as an encryption key, and transmits an encrypted fingerprint slice data packet to the device B through a trusted network channel;
eighth step: after receiving the data packet sent by the device A, the device B decrypts the received data packet by using the communication key M1 to restore the plaintext information of the fingerprint image slice P1; meanwhile, the encrypted and stored fingerprint information is decrypted by using a secret key M1 to obtain the plaintext information of the complete fingerprint;
the ninth step: the device B carries out image matching on the fingerprint image slice P1 and the stored original input fingerprint information, when the similarity reaches beta (a similarity set value), the matching is successful, and when the identity authentication is successful, the device B sends a return value of the successful authentication to the device A; when the matching result does not meet the requirement and the identity authentication fails, the equipment B sends a return value of the authentication failure to the equipment A;
the tenth step: after the device A successfully receives the successfully matched return value of the device B and confirms the identity of the return value sender, the identity authentication process is completed, and subsequent related operations such as communication, management, control or data sharing among devices can be carried out; and if the authentication failure result is received, the operations of the six steps to the nine steps are tried again for identity authentication.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (1)
1. An identity authentication method of internet of things equipment based on a fingerprint centralized issuing mode is characterized in that under the condition that a communication key M1 between the internet of things equipment is safe and cannot be stolen, the identity authentication method comprises the following steps:
1) a user logs in an equipment configuration interface through an initial configuration account password of the Internet of things security gateway and modifies an equipment management password; configuring equipment related information; inputting a fingerprint through a fingerprint acquisition module, and setting an inter-device communication key M1;
2) the Internet of things security gateway stores a communication key M1 and uses M1 to encrypt and store the acquired fingerprint information; after the user finishes the first configuration, when the equipment configuration information is modified again, the gateway configuration interface can be entered to modify the gateway related configuration only if the management password and the fingerprint are matched simultaneously;
3) when a new device A needs to be added into the network, a user logs in a device configuration interface through an initial configuration account password of the device A and modifies a device management password; configuring relevant information of the equipment to enable the equipment to be normally connected to the Internet of things security gateway; and setting an inter-device communication key M1;
4) when the intelligent gateway detects that a new device is normally connected to the network, the intelligent gateway randomly encrypts a string of characters S1 by using a secret key M1 and sends the string of characters S1 to a device A, after the device A receives a data packet of the gateway, the device A uses M1 to unpack the data packet, and sends plaintext information of the unpacked string of characters S2 to the intelligent gateway;
5) after receiving the information sent by the device A, the intelligent gateway compares the character strings S2 with S1, and after judging that S1 is consistent with S2, the intelligent gateway sends the fingerprint information encrypted by using M1 to the device A, so that the device A can receive the encrypted fingerprint information;
similarly, when the device B or other devices join the internet of things network, and want to acquire the fingerprint data packet, the operations are the same as the above steps 3) to 5);
6) when the equipment A needs to perform identity authentication with the equipment B, the equipment A firstly decrypts the stored fingerprint information by using the secret key M1, and after the decryption of the fingerprint information is completed, the equipment A randomly cuts the fingerprint picture to obtain a fingerprint image slice P1 and ensures that the area of the fingerprint slice P1 is not less than alpha% of the area of the original fingerprint;
7) the device A encrypts the fingerprint image slice P1 by using a symmetric encryption algorithm and taking M1 as an encryption key, and transmits an encrypted fingerprint slice data packet to the device B through a trusted network channel;
8) after receiving the data packet sent by the device A, the device B decrypts the received data packet by using the communication key M1 to restore the plaintext information of the fingerprint image slice P1; meanwhile, the encrypted and stored fingerprint information is decrypted by using a secret key M1 to obtain the plaintext information of the complete fingerprint;
9) the device B performs image matching on the fingerprint image slice P1 and the stored original input fingerprint information, and when the similarity reaches a set similarity beta, the matching is successful, and the identity authentication is successful, the device B sends a return value of the authentication success to the device A; when the matching result does not meet the requirement and the identity authentication fails, the equipment B sends a return value of the authentication failure to the equipment A;
10) after the device A successfully receives the successfully matched return value of the device B and confirms the identity of the return value sender, the identity authentication process is completed, and subsequent related operations of communication, management, control or data sharing among devices can be carried out; and if the authentication failure result is received, the identity authentication is tried again through the operations of the steps 6) to 9).
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| CN110210199B (en) * | 2019-05-30 | 2022-07-15 | 上海应用技术大学 | Internet of things equipment identity authentication method based on fingerprint acquisition and identification |
| CN111030841A (en) * | 2019-11-07 | 2020-04-17 | 西安科成新果信息科技有限公司 | Forestry internet of things safety communication system |
| CN117319450B (en) * | 2023-11-27 | 2024-02-09 | 成都秦川物联网科技股份有限公司 | Ultrasonic metering instrument data interaction method, device and equipment based on Internet of things |
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