CN110276870B - Fingerprint processing method and system - Google Patents

Fingerprint processing method and system Download PDF

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Publication number
CN110276870B
CN110276870B CN201910560003.3A CN201910560003A CN110276870B CN 110276870 B CN110276870 B CN 110276870B CN 201910560003 A CN201910560003 A CN 201910560003A CN 110276870 B CN110276870 B CN 110276870B
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key
keydata
door lock
intelligent door
lock
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CN110276870A (en
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靳松
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Beijing Zhibao Yunke Technology Co., Ltd.
Beijing Huada Zhibao Electronic System Co Ltd
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Beijing Zhibao Yunke Technology Co ltd
Beijing Huada Zhibao Electronic System Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
    • G06F21/6263—Protecting personal data, e.g. for financial or medical purposes during internet communication, e.g. revealing personal data from cookies
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/1347—Preprocessing; Feature extraction
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00563—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/50—Maintenance of biometric data or enrolment thereof
    • G06V40/53—Measures to keep reference information secret, e.g. cancellable biometrics

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Bioethics (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Medical Informatics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Lock And Its Accessories (AREA)
  • Collating Specific Patterns (AREA)

Abstract

The invention provides a fingerprint processing method and a fingerprint processing system, wherein a public key PubKey-Lock of an encryption key pair of an intelligent door Lock is obtained through a cloud platform, then the public key PubKey-Lock, a symmetric key KeyData and a fingerprint characteristic value FingerData of the encryption key pair based on the intelligent door Lock are determined to be encrypted, encrypted fingerprint identification information is obtained, and the encrypted fingerprint identification information is sent to the intelligent door Lock. The encryption is performed on the cloud platform based on the public key PubKey-Lock, the symmetric key KeyData and the fingerprint characteristic value FigerData of the encryption key pair of the intelligent door Lock, the encrypted fingerprint identification information is obtained, then the encrypted fingerprint identification information is accurately sent to the intelligent door Lock through the cloud platform, the problem that a user acquires the fingerprint information on site is solved, and the management efficiency is improved for centralized management of hotels, apartments, residences and the like.

Description

Fingerprint processing method and system
Technical Field
The invention belongs to the field of information security, and particularly relates to a fingerprint processing method and system.
Background
With the progress of scientific technology, the equipment control mode gradually transits from mechanical control to intelligent control, for example, for door locks, the appearance of intelligent door locks makes more and more users prefer the intelligent door locks. The intelligent door lock can perform field input by using the biological characteristic information of the user, for example, the fingerprint information of the user can be input on the field by using the fingerprint acquisition equipment on the intelligent door lock.
To utilizing the fingerprint to carry out on-the-spot unblock to intelligent lock, to a great extent satisfy user's demand, but to the centralized management's such as hotel, apartment, civilian and accommodations scene at present, the problem in the managerial efficiency has appeared in the on-the-spot fingerprint of gathering, for example: when each user lives in, a manager accompanies the user to collect fingerprints on site, and therefore management efficiency is low. The field fingerprint collection is inconvenient for improving the management efficiency.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a fingerprint processing method and system, which are used to remotely collect fingerprint information, obtain a fingerprint feature value, and write the fingerprint feature value into an intelligent device. The technical scheme is as follows:
the invention provides a fingerprint processing method, which is applied to a cloud platform and comprises the following steps:
acquiring a public key PubKey-Lock of an encryption key pair of the intelligent door Lock;
determining a public key PubKey-Lock, a symmetric key KeyData and a fingerprint characteristic value Fingerdata of an encryption key pair based on the intelligent door Lock to perform encryption, and obtaining encrypted fingerprint identification information;
sending the encrypted fingerprint identification information to the intelligent door lock;
the symmetric key KeyData is generated by a cloud platform or acquisition equipment, the fingerprint characteristic value FingerData is acquired by the acquisition equipment, the encrypted fingerprint identification information comprises first key information En-FingerData and second key information En-KeyData, the first key information is obtained by encrypting the fingerprint characteristic value FingerData by the symmetric key KeyData, and the second key information is obtained by encrypting the symmetric key KeyData by a public key PubKey-Lock of an encryption key pair of the intelligent door Lock.
Preferably, the determining is performed based on a public key PubKey-Lock, a symmetric key KeyData, and a fingerprint feature value FingerData of an encryption key pair of the smart door Lock, and the obtained encrypted fingerprint identification information includes:
generating a first symmetric key KeyData;
responding to a request of the acquisition equipment for applying for the first symmetric key KeyData, encrypting the first symmetric key KeyData based on a public key PubKey-Device of an encryption key pair of the acquisition equipment, and sending the encrypted first symmetric key KeyData to the acquisition equipment, wherein the public key PubKey-Device of the encryption key pair of the acquisition equipment is acquired from the acquisition equipment by a cloud platform;
receiving first key information En-fingerData sent by the acquisition equipment, wherein the first key information En-fingerData is obtained by encrypting a fingerprint characteristic value fingerData by the acquisition equipment based on the first symmetric key KeyData;
encrypting the first symmetric key KeyData based on a public key PubKey-Lock of an encryption key pair of the intelligent door Lock to obtain second key information En-KeyData;
and generating encrypted fingerprint identification information based on the first key information En-fingerData and the second key information En-keyData.
Preferably, the determining is performed based on a public key PubKey-Lock, a symmetric key KeyData, and a fingerprint feature value FingerData of an encryption key pair of the smart door Lock, and the obtained encrypted fingerprint identification information includes:
sending the public key PubKey-Lock of the obtained encryption key pair of the intelligent door Lock to acquisition equipment;
receiving encrypted fingerprint identification information obtained by encrypting the acquisition equipment based on a second symmetric key KeyData, a public key PubKey-Lock of an encryption key pair of the intelligent door Lock and a fingerprint characteristic value Fingerdata;
wherein the second symmetric key KeyData is generated by the acquisition device.
Preferably, before sending the encrypted fingerprint identification information to the intelligent door lock, the method further includes:
performing equipment identity authentication on the acquisition equipment and the intelligent door lock based on the equipment digital certificate of the acquisition equipment and the equipment digital certificate of the intelligent door lock;
and if the equipment identity authentication is legal, sending the encrypted fingerprint identification information to the intelligent door lock authenticated by the cloud platform.
The invention also provides another fingerprint processing method, which is applied to the intelligent door lock and comprises the following steps:
receiving the encrypted fingerprint identification information sent by the cloud platform;
decrypting the encrypted fingerprint identification information based on a private key PrIKey-Lock of a built-in encryption key to obtain a symmetric key KeyData;
decrypting the encrypted fingerprint identification information again by using the symmetric key KeyData to obtain a fingerprint characteristic value Fingerdata;
and writing the fingerprint characteristic value Fingerdata.
The present invention provides a cloud platform, comprising:
the acquisition module is used for acquiring a public key PubKey-Lock of an encryption key pair of the intelligent door Lock;
the determining module is used for determining that encryption is performed on the basis of a public key PubKey-Lock, a symmetric key KeyData and a fingerprint characteristic value FingerData of an encryption key pair of the intelligent door Lock to obtain encrypted fingerprint identification information;
and the sending module is used for sending the encrypted fingerprint identification information to the intelligent door lock.
Preferably, the determining module includes:
a generating unit configured to generate a first symmetric key KeyData;
the response unit is used for responding to a request of the acquisition equipment for applying for the first symmetric key KeyData, encrypting the first symmetric key KeyData based on a public key PubKey-Device of an encryption key pair of the acquisition equipment, and sending the encrypted first symmetric key KeyData to the acquisition equipment, wherein the public key PubKey-Device of the encryption key pair of the acquisition equipment is acquired from the acquisition equipment by a cloud platform;
the receiving unit is used for receiving first key information En-fingerData sent by the acquisition equipment, wherein the first key information En-fingerData is obtained by encrypting a fingerprint characteristic value fingerData by the acquisition equipment based on the first symmetric key KeyData;
the encryption unit is used for encrypting the first symmetric key KeyData based on a public key PubKey-Lock of an encryption key pair of the intelligent door Lock to obtain second key information En-KeyData;
and the generating unit is used for generating the encrypted fingerprint identification information based on the first key information En-fingerData and the second key information En-keyData.
Preferably, the cloud platform further comprises:
the authentication module is used for performing equipment identity authentication on the acquisition equipment and the intelligent door lock based on the equipment digital certificate of the acquisition equipment and the equipment digital certificate of the intelligent door lock; and if the equipment identity authentication is legal, sending the encrypted fingerprint identification information to the intelligent door lock authenticated by the cloud platform.
The invention also provides an intelligent door lock, comprising:
the receiving module is used for receiving the encrypted fingerprint identification information sent by the cloud platform;
the first decryption module is used for decrypting the encrypted fingerprint identification information based on a private key PrIKey-Lock of a built-in encryption key to obtain a symmetric key KeyData;
the second decryption module is used for decrypting the encrypted fingerprint identification information again by using the symmetric key KeyData to obtain a fingerprint characteristic value FingerData;
and the writing module is used for writing the fingerprint characteristic value Fingerdata.
The present invention provides a fingerprint processing system, the system comprising: an acquisition device, the cloud platform of any one of claims 6-8 and the smart door lock of claim 9;
the system comprises a collecting device, a cloud platform and a cloud platform, wherein the collecting device is used for collecting fingerprint information of a user, generating a fingerprint characteristic value FingerData based on the fingerprint information, receiving a first symmetric key KeyData sent by the cloud platform, encrypting the fingerprint characteristic value FingerData based on the first symmetric key KeyData and sending the obtained first key information En-fingerData to the cloud platform, or generating a second symmetric key KeyData, receiving a public key PubKey-Lock of an encryption key pair of an intelligent door Lock sent by the cloud platform, encrypting the public key PubKey-Lock of the encryption key pair of the intelligent door Lock based on the second symmetric key KeyData and the public key PubKey-Lock and the fingerprint characteristic value FingerData of the encryption key pair of the intelligent door Lock to obtain encrypted fingerprint identification information and sending the encrypted fingerprint identification information to the cloud platform;
the cloud platform is used for acquiring a public key PubKey-Lock of an encryption key pair of the intelligent door Lock, sending the public key PubKey-Lock of the encryption key pair of the intelligent door Lock to the acquisition equipment, receiving the encrypted fingerprint identification information sent by the acquisition equipment, sending the encrypted fingerprint identification information to the intelligent door Lock, or acquiring the public key PubKey-Lock of the encryption key pair of the intelligent door Lock, generating a first symmetric key KeyData, sending the first symmetric key KeyData to the acquisition equipment, receiving the first key information En-FigerData sent by the acquisition equipment, encrypting the first symmetric key KeyData based on the public key PubKey-Lock of the encryption key pair of the intelligent door Lock to obtain second key information En-KeyData, and sending the encrypted fingerprint identification information composed of the first key information En-FigerData and the second key information En-KeyData to the intelligent door Lock The door can be locked;
the intelligent door lock is used for receiving the encrypted fingerprint identification information sent by the cloud platform; decrypting the encrypted fingerprint identification information based on a private key PrIKey-Lock of a built-in encryption key to obtain a symmetric key KeyData; decrypting the encrypted fingerprint identification information again by using the symmetric key KeyData to obtain a fingerprint characteristic value Fingerdata; and writing the fingerprint characteristic value Fingerdata.
Compared with the prior art, the technical scheme provided by the invention has the following advantages:
the method comprises the steps of obtaining a public key PubKey-Lock of an encryption key pair of the intelligent door Lock through a cloud platform, then determining that encryption is carried out on the public key PubKey-Lock, a symmetric key KeyData and a fingerprint characteristic value fingerData of the encryption key pair of the intelligent door Lock, obtaining encrypted fingerprint identification information, and sending the encrypted fingerprint identification information to the intelligent door Lock. The encryption is performed on the cloud platform based on the public key PubKey-Lock, the symmetric key KeyData and the fingerprint characteristic value FigerData of the encryption key pair of the intelligent door Lock, the encrypted fingerprint identification information is obtained, then the encrypted fingerprint identification information is accurately sent to the intelligent door Lock through the cloud platform, the problem that a user acquires the fingerprint information on site is solved, and the management efficiency is improved for centralized management of hotels, apartments, residences and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an architecture of a fingerprint processing system according to an embodiment of the present invention;
FIG. 2 is a flowchart of a fingerprint processing method according to an embodiment of the present invention;
FIG. 3 is a flow chart of another fingerprint processing method provided by the embodiment of the invention;
FIG. 4 is a flow chart of another fingerprint processing method provided by the embodiment of the invention;
fig. 5 is a flowchart of a cloud platform architecture according to an embodiment of the present invention;
fig. 6 is a flowchart of an intelligent door lock structure according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a fingerprint processing system according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another fingerprint processing system according to an embodiment of the present invention.
Detailed Description
The invention provides a fingerprint processing method and a fingerprint processing system, which realize the remote acquisition of fingerprint information and the accurate transmission of the acquired fingerprint information to corresponding intelligent equipment through a cloud platform, avoid the acquisition of the fingerprint information of an acquired object on site, and improve the efficiency of centralized management of hotels, apartments, people and accommodations and the like.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an architecture diagram of a fingerprint processing system provided in an embodiment of the present invention may include: the system comprises a collection device 101, a cloud platform 102 and an intelligent door lock 103.
In the process of fingerprint processing, fingerprint information of a user is collected through the collection device 101, a fingerprint characteristic value is obtained based on the fingerprint information, the fingerprint characteristic value is sent to the cloud platform 102, the cloud platform 102 sends the fingerprint characteristic value to the intelligent door lock 103 after receiving the fingerprint characteristic value sent by the collection device 101, the intelligent door lock 103 receives and stores the fingerprint characteristic value sent by the cloud platform 102, when the user corresponding to the fingerprint characteristic value collects the fingerprint information on the intelligent door lock, the fingerprint characteristic value obtained by collecting the fingerprint information on the intelligent door lock is compared with the stored fingerprint characteristic value, and if the comparison is successful, the intelligent door lock is opened. Through the mode that the collection equipment 101 and the intelligent door lock 103 are combined with the cloud platform 102, the fingerprint characteristic value of a user can be collected remotely, and the problem that the fingerprint characteristic value is inconvenient to collect on site is avoided. For example: in hotel management, each time a user needs to transact a check-in procedure, an accompanying person needs to accompany the user to a corresponding room to acquire fingerprint information on site, and the efficiency of hotel management is reduced by acquiring a fingerprint characteristic value on site.
In the fingerprint processing system, the cloud platform 102 includes three parts: a service system, a key management system and an authentication system.
The service system is responsible for managing the acquisition equipment and the intelligent door lock and sending the acquired fingerprint characteristic value to the determined intelligent door lock; the key management system is used for providing a key (a second symmetric key) for encrypting the acquired fingerprint characteristic value for the service system, and the key management system is used only in a mode that the cloud platform participates in encryption; the authentication system provides an equipment authentication function for the acquisition equipment and the intelligent door lock, and the legality of the acquisition equipment and the intelligent door lock is guaranteed.
Based on the above method embodiment, as shown in fig. 2, a flowchart of a fingerprint processing method provided in an embodiment of the present invention is shown, where the method includes the following steps:
s201: the cloud platform obtains a public key PubKey-Lock of an encryption key pair of the intelligent door Lock.
In the process of executing S201, the cloud platform obtains a public key PubKey-Lock of an encryption key pair of the intelligent door Lock, where a private key PriKey-Lock of the encryption key pair also exists in the intelligent door Lock.
It should be noted that the private key PriKey-Lock of the encryption key pair of the intelligent door Lock can decrypt the public key PubKey-Lock of the encryption key pair.
S202: the cloud platform determines that a public key PubKey-Lock, a symmetric key KeyData and a fingerprint characteristic value Fingerdata of an encryption key pair based on the intelligent door Lock execute encryption to obtain encrypted fingerprint identification information.
In step S202, the symmetric key KeyData is generated by the cloud platform, and the fingerprint feature value FingerData is collected by the collection device. In the process of executing S202, the cloud platform encrypts the generated symmetric key KeyData to the fingerprint feature value FingerData acquired by the acquisition device, and then encrypts the symmetric key KeyData based on the public key PubKey-Lock of the encryption key pair of the smart door Lock.
In this implementation, the collecting device can also obtain the identity information (SN) of the user through the cloud platform in addition to collecting the fingerprint feature value.
The identity information may be an identification number and/or a mobile phone number of the user. Here, only two types of identification numbers and/or mobile phone numbers are illustrated to represent the identification information, and other types may be included to represent the identification information, which may be selected according to actual needs and will not be further described here.
For the fingerprint characteristic value and the identification information obtained by the acquisition device, the acquisition device generates fingerprint identification information based on the fingerprint characteristic value and the identification information. That is, the fingerprint feature values are bound by the identification information so that the identification information and the fingerprint feature values are in a one-to-one correspondence relationship.
For example: the simple fingerprint characteristic values are messy code information, so that users corresponding to the fingerprint characteristic values cannot be distinguished, the fingerprint characteristic values can be effectively managed by adding the identity identification information of the user and matching the fingerprint characteristics of the user into a one-to-one corresponding relation, and the user corresponding to the fingerprint characteristic values can be clearly known through the identity identification information.
It should be noted that, in this embodiment, the symmetric key KeyData is generated by the cloud platform, and in practical applications, the symmetric key KeyData may also be generated by another device, that is, the cloud platform does not uniquely generate the symmetric key KeyData.
S203: and the cloud platform sends the encrypted fingerprint identification information to the intelligent door lock.
In the process of executing the step S203, the cloud platform serves as a transfer station, and sends the encrypted fingerprint identification information to the intelligent door lock, so that the intelligent door lock can remotely receive the fingerprint identification information, wherein the intelligent door lock is authenticated by the cloud platform.
In this embodiment, the cloud platform has a function of encrypting the fingerprint feature value in addition to the function of transmitting.
According to the technical scheme, the fingerprint characteristic value FingerData acquired by the acquisition equipment is encrypted through the symmetric key KeyData generated by the cloud platform, then the cloud platform encrypts the symmetric key KeyData through the public key PubKey-Lock of the encryption key pair of the intelligent door Lock to obtain the encrypted fingerprint identification information, and then the encrypted fingerprint identification information is sent to the intelligent door Lock through the cloud platform, so that the fingerprint characteristic value is remotely sent to the intelligent door Lock, the problem that a user acquires the fingerprint information on site is solved, and the management efficiency is improved for centralized management of hotels, apartments, residents and the like.
Based on the foregoing embodiment, as shown in fig. 3, a flowchart of another fingerprint processing method provided in an embodiment of the present invention is provided, where the method includes the following steps:
s301: the cloud platform obtains a public key PubKey-Lock of an encryption key pair of the intelligent door Lock.
The execution principle of S301 is the same as that of S201 shown in fig. 2, and is not described herein again.
S302: the cloud platform generates a first symmetric key KeyData.
In the process of executing S302, the cloud platform itself generates the first symmetric key KeyData, and transmits the generated first symmetric key KeyData to the corresponding acquisition device.
It should be noted that the cloud platform may generate the plurality of first symmetric keys KeyData so as to randomly respond one of the plurality of first symmetric keys KeyData to the acquisition device.
S303: the cloud platform responds to a request of the acquisition equipment for applying for the first symmetric key KeyData, encrypts the first symmetric key KeyData based on a public key PubKey-Device of an encryption key pair of the acquisition equipment, and sends the encrypted first symmetric key KeyData to the acquisition equipment.
In the process of executing S303, the acquisition device applies for the first symmetric key KeyData to the cloud platform, and then the cloud platform responds to the request of the first symmetric key KeyData applied by the acquisition device in time, and sends the first symmetric key KeyData to the acquisition device. The length of the first symmetric key KeyData applied by the acquisition device may include, but is not limited to, 16 bytes, and may be specifically set according to actual needs.
The cloud platform sends the encrypted first symmetric key KeyData to the acquisition equipment, wherein the public key of the encrypted key pair in the acquisition equipment is used for encrypting the first symmetric key KeyData, the public key of the encrypted key pair of the acquisition equipment is acquired from the acquisition equipment through the cloud platform, the first symmetric key KeyData is encrypted through the public key of the encrypted key pair of the acquisition equipment and then sent to the acquisition equipment, the first symmetric key KeyData is protected, and the first symmetric key KeyData is prevented from being stolen in the sending process.
It should be noted that the public key of the encryption key pair exists in the acquisition device, and the private key of the encryption key pair also exists.
S304: the cloud platform receives first key information En-fingerData sent by the acquisition equipment.
In the process of executing the S304, the cloud platform receives the first key information En-FingerData sent by the acquisition device, the first key information En-FingerData sent by the acquisition device before the cloud platform receives the first key information En-FingerData is obtained by encrypting the fingerprint characteristic value FingerData by the acquisition device itself based on the first symmetric key KeyData, and the fingerprint characteristic value FingerData is encrypted by the first symmetric key KeyData, so that the fingerprint characteristic value FingerData is better protected.
It should be noted that the encryption of the fingerprint feature value FingerData by the first symmetric key KeyData may be defined as a first layer of protection.
S305: the cloud platform encrypts the first symmetric key KeyData based on a public key PubKey-Lock of an encryption key pair of the intelligent door Lock to obtain second key information En-KeyData.
In the process of executing S305, the public key PubKey-Lock of the encryption key pair of the smart door Lock encrypts the first symmetric key KeyData to form second key information En-KeyData, which is the second layer of protection for the fingerprint feature value FingerData indirectly by the public key PubKey-Lock of the encryption key pair of the smart door Lock.
It should be noted that the fingerprint feature value FingerData is more secure in the transmission process due to the first layer protection and the second layer protection.
S306: the cloud platform generates encrypted fingerprint identification information based on the first key information En-fingerData and the second key information En-keyData.
In the process of executing S306, since the first key information En-FingerData is the first layer protection of the first symmetric key KeyData on the fingerprint characteristic value FingerData, and the second key information En-KeyData is the second layer protection of the public key PubKey-Lock of the encryption key pair of the smart door Lock on the fingerprint characteristic value FingerData, the collecting device may use the first key information En-FingerData and the second key information En-KeyData as the encrypted fingerprint identification information, and then send the encrypted fingerprint identification information to the cloud platform.
It should be noted that the encrypted fingerprint identification information further includes identification information.
S307: and the cloud platform sends the encrypted fingerprint identification information to the intelligent door lock.
The execution principle of S307 is the same as S203 shown in fig. 2, and is not described herein again.
S308: and the intelligent door lock receives the fingerprint identification information after the encryption sent by the cloud platform.
In the process of executing the step S308, the intelligent door lock can receive the encrypted fingerprint identification information sent by the cloud platform in time.
It should be noted that the intelligent door lock may be the intelligent door lock disclosed in fig. 1.
S309: the intelligent door Lock decrypts the encrypted fingerprint identification information based on a private key PrIKey-Lock of the built-in encryption key to obtain a first symmetric key KeyData.
In the process of executing S309, when the smart door Lock receives the encrypted fingerprint identification information, the encrypted fingerprint identification information is decrypted based on the private key PriKey-Lock of the built-in encryption key, so as to obtain the first symmetric key KeyData.
It should be noted that the first symmetric key KeyData is obtained by decrypting the public key PubKey-Lock of the intelligent door Lock encryption key pair by the private key PriKey-Lock of the intelligent door Lock encryption key pair.
S310: the intelligent door lock decrypts the encrypted fingerprint identification information again by using the first symmetric key KeyData to obtain the fingerprint characteristic value Fingerdata.
In the process of executing S310, the finally obtained fingerprint feature value FingerData is obtained by decrypting the encrypted fingerprint identification information again by using the first symmetric key KeyData by the smart door lock.
It should be noted that the first symmetric key KeyData can decrypt itself.
S311: the intelligent door lock writes a fingerprint characteristic value Fingerdata.
In the process of S311, the smart door lock writes the fingerprint feature value FingerData.
It should be noted that the fingerprint characteristic value FingerData is written into the smart door lock, so that the user can conveniently collect the fingerprint characteristic value FingerData on the smart door lock to perform calling comparison.
According to the technical scheme, the cloud platform receives the first key information En-fingerData, and then the first symmetric key KeyData in the first key information En-fingerData is encrypted through the public key PubKey-Lock of the encryption key pair obtained from the intelligent door Lock by the cloud platform to form second key information En-keyData, so that second-layer protection on the fingerprint characteristic value FingerData is formed, then the first key information En-fingerData and the second key information En-keyData are used as encrypted fingerprint identification information and sent to the intelligent door Lock, and the fingerprint characteristic value FingerData in the whole process is ensured to be transmitted safely in the encrypted environment.
Based on the foregoing embodiment, as shown in fig. 4, a flowchart of another fingerprint processing method is provided in the embodiment of the present invention, where the method includes the following steps:
s401: the cloud platform obtains a public key PubKey-Lock of an encryption key pair of the intelligent door Lock.
The execution principle of S401 is the same as that of S201 shown in fig. 2, and is not described herein again.
S402: and the cloud platform sends the public key PubKey-Lock of the acquired encryption key pair of the intelligent door Lock to the acquisition equipment.
In the process of executing S402, the collection device obtains the public key PubKey-Lock of the encryption key pair of the smart door Lock through the cloud platform, specifically, the corresponding smart door Lock may be selected manually, or the unused smart door Lock may be selected randomly, so that the collection device can obtain the public key PubKey-Lock of the encryption key pair of the smart door Lock through the cloud platform. The public key PubKey-Lock of the encryption key pair of the intelligent door Lock is pre-stored in the intelligent door Lock, and besides, the private key (PriKey-Lock) of the encryption key pair also exists in the intelligent door Lock. Yet another possibility is: the intelligent door Lock can temporarily generate a public key PubKey-Lock of an encryption key pair and a private key PrIKey-Lock of the encryption key pair.
It should be noted that the public key PubKey-Lock of the encryption key pair of the intelligent door Lock, which is obtained by the acquisition device, is used to encrypt the second symmetric key.
S403: and the cloud platform receives the encrypted fingerprint identification information obtained by encrypting the acquisition equipment based on the second symmetric key KeyData, the public key PubKey-Lock of the encryption key pair of the intelligent door Lock and the fingerprint characteristic value FingerData.
In step S403, a second symmetric key KeyData is generated by the acquisition device. In the process of executing S403, the acquisition device encrypts the fingerprint feature value FingerData based on the second symmetric key KeyData, and then encrypts the second symmetric key KeyData by using the public key PubKey-Lock of the encryption key pair of the smart door Lock, so as to obtain the encrypted fingerprint identification information.
It should be noted that the acquisition device encrypts the fingerprint feature value FingerData based on the second symmetric key KeyData to form third key information En-FingerData, and the public key PubKey-Lock of the encryption key pair of the smart door Lock encrypts the second symmetric key KeyData to form fourth key information En-KeyData.
S404: and the cloud platform sends the encrypted fingerprint identification information to the intelligent door lock.
The execution principle of S404 is consistent with S203 shown in fig. 2, and will not be described again here.
S405: and the intelligent door lock receives the fingerprint identification information after the encryption sent by the cloud platform.
S406: the intelligent door Lock decrypts the encrypted fingerprint identification information based on a private key PrIKey-Lock of the built-in encryption key to obtain a second symmetric key KeyData.
S407: the intelligent door lock decrypts the encrypted fingerprint identification information again by using the first symmetric key KeyData to obtain the fingerprint characteristic value Fingerdata.
S408: the intelligent door lock writes a fingerprint characteristic value Fingerdata.
The execution principle of S405, 406, S407, and S408 is the same as that of S308, S309, S310, and S311 shown in fig. 3, and will not be described again here.
According to the technical scheme, the second symmetric key KeyData generated by the acquisition equipment can be used for encrypting the fingerprint characteristic value FingerData to form third key information En-FingerData, the fingerprint characteristic value FingerData is subjected to first-layer protection, then the second symmetric key KeyData is subjected to encryption processing through a public key of an encryption key pair of the intelligent door lock to form fourth key information En-KeyData, the fingerprint characteristic value FingerData is indirectly subjected to second-layer protection, the security protection of the fingerprint characteristic value FingerData is enhanced, and the situation that the fingerprint characteristic value FingerData is cracked and obtained in the transmission process is avoided.
Based on the above embodiment, the embodiment of the method of the present invention further includes:
and performing equipment identity authentication on the acquisition equipment and the intelligent door lock based on the equipment digital certificate of the acquisition equipment and the equipment digital certificate of the intelligent door lock, and if the equipment identity authentication is legal, sending the encrypted fingerprint identification information to the intelligent door lock authenticated by the cloud platform.
According to the technical scheme, the legality of the acquisition equipment and the intelligent door lock is guaranteed through the identity authentication of the acquisition equipment and the intelligent door lock.
Corresponding to the foregoing method embodiment, an embodiment of the present invention further provides a cloud platform, as shown in fig. 5, including: an acquisition module 50, a determination module 51 and a sending module 52.
And the obtaining module 50 is configured to obtain a public key PubKey-Lock of an encryption key pair of the intelligent door Lock.
The determining module 51 is configured to determine that the public key PubKey-Lock, the symmetric key KeyData, and the fingerprint feature value FingerData of the encryption key pair based on the smart door Lock perform encryption, and obtain encrypted fingerprint identification information.
And the sending module 52 is configured to send the encrypted fingerprint identification information to the intelligent door lock.
An alternative structure of the determination module 51 in this embodiment is: the determination module 51 includes a first generation unit, a response unit, a reception unit, an encryption unit, and a second generation unit.
A generating unit for generating a first symmetric key KeyData.
The response unit is used for responding to a request of the acquisition equipment for applying for the first symmetric key KeyData, encrypting the first symmetric key KeyData based on a public key PubKey-Device of an encryption key pair of the acquisition equipment, and sending the encrypted first symmetric key KeyData to the acquisition equipment, wherein the public key PubKey-Device of the encryption key pair of the acquisition equipment is acquired from the acquisition equipment by the cloud platform.
And the receiving unit is used for receiving the first key information En-fingerData sent by the acquisition equipment.
And the encryption unit is used for encrypting the first symmetric key KeyData based on a public key PubKey-Lock of an encryption key pair of the intelligent door Lock to obtain second key information En-KeyData.
And the second generation unit is used for generating the encrypted fingerprint identification information based on the first key information En-fingerData and the second key information En-KeyData.
According to the technical scheme, the fingerprint characteristic value FingerData acquired by the acquisition equipment is encrypted through the symmetric key KeyData generated by the cloud platform, then the cloud platform encrypts the symmetric key KeyData through the public key PubKey-Lock of the encryption key pair of the intelligent door Lock to obtain the encrypted fingerprint identification information, and then the encrypted fingerprint identification information is sent to the intelligent door Lock through the cloud platform, so that the fingerprint characteristic value is remotely sent to the intelligent door Lock, the problem that a user acquires the fingerprint information on site is solved, and the management efficiency is improved for centralized management of hotels, apartments, residents and the like.
Based on the above embodiment, the cloud platform further includes: the authentication module is used for performing equipment identity authentication on the acquisition equipment and the intelligent door lock based on the equipment digital certificate of the acquisition equipment and the equipment digital certificate of the intelligent door lock; and if the equipment identity authentication is legal, sending the encrypted fingerprint identification information to the intelligent door lock authenticated by the cloud platform.
According to the technical scheme, the legality of the acquisition equipment and the intelligent door lock is guaranteed through the identity authentication of the acquisition equipment and the intelligent door lock.
Corresponding to the above method embodiment, an embodiment of the present invention further provides an intelligent door lock, as shown in fig. 6, including: a receiving module 60, a first decryption module 61, a second decryption module 62 and a writing module 63.
And the receiving module 60 is configured to receive the encrypted fingerprint identification information sent by the cloud platform.
The first decryption module 61 is configured to decrypt the encrypted fingerprint identification information based on a private key PriKey-Lock of the built-in encryption key to obtain a symmetric key KeyData.
And the second decryption module 62 is configured to decrypt the encrypted fingerprint identification information again by using the symmetric key KeyData to obtain the fingerprint feature value FingerData.
And a writing module 63, configured to write the fingerprint feature value FingerData.
According to the technical scheme, the fingerprint characteristic value FingerData is written into the intelligent door lock, so that a user can conveniently collect the fingerprint characteristic value FingerData on the intelligent door lock to call and compare.
Based on the fingerprint processing method disclosed by the embodiment of the invention, the embodiment of the invention also correspondingly discloses a fingerprint processing system. As shown in fig. 7, a schematic diagram of a fingerprint processing system is shown, the fingerprint processing system includes: acquisition device 70, cloud platform 71, and smart device 72.
The acquisition device 70 is configured to acquire fingerprint information of a user, generate a fingerprint feature value FingerData based on the fingerprint information, receive a first symmetric key KeyData sent by the cloud platform 71, encrypt the fingerprint feature value FingerData based on the first symmetric key KeyData, and send the obtained first key information En-FingerData to the cloud platform 71, or, generate a second symmetric key KeyData, receive a public key PubKey-Lock of an encryption key pair of the smart door Lock 72 sent by the cloud platform 71, encrypt the public key PubKey-Lock of the encryption key pair of the smart door Lock 72 and the fingerprint feature value FingerData based on the second symmetric key KeyData, obtain encrypted fingerprint identification information, and send the encrypted fingerprint identification information to the cloud platform 71.
The cloud platform 71 is configured to obtain the public key PubKey-Lock of the encryption key pair of the smart door Lock 72, send the public key PubKey-Lock of the encryption key pair of the smart door Lock 72 to the acquisition device 70, and receives the encrypted fingerprint identification information transmitted from the capture device 70, transmits the encrypted fingerprint identification information to the smart door lock 72, or, the public key PubKey-Lock of the encryption key pair of the smart door Lock 72 is acquired, the first symmetric key KeyData is generated, the first symmetric key KeyData is sent to the acquisition device 70, and receives the first key information En-FingerData sent by the acquisition device 70, encrypts the first symmetric key KeyData based on the public key PubKey-Lock of the encryption key pair of the smart door Lock 72 to obtain second key information En-KeyData, and sends the encrypted fingerprint identification information composed of the first key information En-FingerData and the second key information En-KeyData to the smart door Lock 72.
The intelligent door lock 72 is used for receiving the encrypted fingerprint identification information sent by the cloud platform 71; decrypting the encrypted fingerprint identification information based on a private key PrIKey-Lock of a built-in encryption key to obtain a symmetric key KeyData; decrypting the encrypted fingerprint identification information again by using a symmetric key KeyData to obtain a fingerprint characteristic value FingerData; and writing a fingerprint characteristic value Fingerdata.
According to the technical scheme, the public key PubKey-Lock of the encryption key pair of the intelligent door Lock 72 is obtained through the cloud platform 71, then the public key PubKey-Lock, the symmetric key KeyData and the fingerprint characteristic value fingerData based on the encryption key pair of the intelligent door Lock 72 are determined to be encrypted, encrypted fingerprint identification information is obtained, and the encrypted fingerprint identification information is sent to the intelligent door Lock 72. The encryption is performed on the cloud platform 71 based on the public key PubKey-Lock, the symmetric key KeyData and the fingerprint characteristic value Fingerdata of the encryption key pair of the intelligent door Lock 72 to obtain the encrypted fingerprint identification information, and then the encrypted fingerprint identification information is accurately sent to the intelligent door Lock 72 through the cloud platform, so that the problem of collecting the fingerprint information when a user arrives at the site is solved, and the management efficiency is improved for centralized management of hotels, apartments, residences and the like.
Based on the fingerprint processing method and the fingerprint processing system disclosed in the above embodiments of the present invention, in a specific implementation process, as shown in fig. 8, a plurality of acquisition devices 70 and a plurality of intelligent door locks 72 may be provided for interaction.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the system-class embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A fingerprint processing method is applied to a cloud platform, and comprises the following steps:
acquiring a public key PubKey-Lock of an encryption key pair of the intelligent door Lock;
determining that a public key PubKey-Lock, a symmetric key KeyData and a fingerprint characteristic value Fingerdata of an encryption key pair based on the intelligent door Lock execute encryption to obtain encrypted fingerprint identification information, wherein the steps of: generating a first symmetric key KeyData; responding to a request of acquisition equipment for applying for the first symmetric key KeyData, encrypting the first symmetric key KeyData based on a public key PubKey-Device of an encryption key pair of the acquisition equipment, and sending the encrypted first symmetric key KeyData to the acquisition equipment, wherein the public key PubKey-Device of the encryption key pair of the acquisition equipment is acquired from the acquisition equipment by a cloud platform; receiving first key information sent by the acquisition equipment
The device comprises an acquisition device, an En-fingerData and a first symmetric key KeyData, wherein the first key information En-fingerData is obtained by encrypting a fingerprint characteristic value fingerData by the acquisition device based on the first symmetric key KeyData; encrypting the first symmetric key KeyData based on a public key PubKey-Lock of an encryption key pair of the intelligent door Lock to obtain second key information En-KeyData; generating encrypted fingerprint identification information based on the first key information En-fingerData and the second key information En-keyData;
sending the encrypted fingerprint identification information to the intelligent door lock;
the symmetric key KeyData is generated by a cloud platform or acquisition equipment, the fingerprint characteristic value FingerData is acquired by the acquisition equipment, the encrypted fingerprint identification information is composed of first key information En-FingerData and second key information En-KeyData, the first key information is obtained by encrypting the fingerprint characteristic value FingerData by the symmetric key KeyData, and the second key information is obtained by encrypting the symmetric key KeyData by a public key PubKey-Lock of an encryption key pair of the intelligent door Lock.
2. The method according to claim 1, wherein the determining is performed based on a public key PubKey-Lock, a symmetric key KeyData, and a fingerprint feature value FingerData of an encryption key pair of the smart door Lock, and the obtained encrypted fingerprint identification information includes:
sending the public key PubKey-Lock of the obtained encryption key pair of the intelligent door Lock to acquisition equipment;
receiving encrypted fingerprint identification information obtained by encrypting the acquisition equipment based on a second symmetric key KeyData, a public key PubKey-Lock of an encryption key pair of the intelligent door Lock and a fingerprint characteristic value Fingerdata;
wherein the second symmetric key KeyData is generated by the acquisition device.
3. The method of claim 1, wherein before sending the encrypted fingerprint identification information to the smart door lock, further comprising:
performing equipment identity authentication on the acquisition equipment and the intelligent door lock based on the equipment digital certificate of the acquisition equipment and the equipment digital certificate of the intelligent door lock;
and if the equipment identity authentication is legal, sending the encrypted fingerprint identification information to the intelligent door lock authenticated by the cloud platform.
4. A fingerprint processing method is applied to an intelligent door lock, and comprises the following steps:
receiving encrypted fingerprint identification information sent by a cloud platform in the method of claim 1;
decrypting the encrypted fingerprint identification information based on a private key PrIKey-Lock of a built-in encryption key to obtain a symmetric key KeyData;
decrypting the encrypted fingerprint identification information again by using the symmetric key KeyData to obtain a fingerprint characteristic value Fingerdata;
and writing the fingerprint characteristic value Fingerdata.
5. A cloud platform, the cloud platform comprising:
the acquisition module is used for acquiring a public key PubKey-Lock of an encryption key pair of the intelligent door Lock;
the determining module is used for determining that encryption is performed on the basis of a public key PubKey-Lock, a symmetric key KeyData and a fingerprint characteristic value FingerData of an encryption key pair of the intelligent door Lock to obtain encrypted fingerprint identification information;
the determining module comprises:
a generating unit configured to generate a first symmetric key KeyData;
the response unit is used for responding to a request of acquisition equipment for applying for the first symmetric key KeyData, encrypting the first symmetric key KeyData based on a public key PubKey-Device of an encryption key pair of the acquisition equipment, and sending the encrypted first symmetric key KeyData to the acquisition equipment, wherein the public key PubKey-Device of the encryption key pair of the acquisition equipment is acquired from the acquisition equipment by a cloud platform;
the receiving unit is used for receiving first key information En-fingerData sent by the acquisition equipment, wherein the first key information En-fingerData is obtained by encrypting fingerprint characteristic value fingerData by the acquisition equipment based on the first symmetric key KeyData;
the encryption unit is used for encrypting the first symmetric key KeyData based on a public key PubKey-Lock of an encryption key pair of the intelligent door Lock to obtain second key information En-KeyData;
a generating unit configured to generate encrypted fingerprint identification information based on the first key information En-FingerData and the second key information En-KeyData;
and the sending module is used for sending the encrypted fingerprint identification information to the intelligent door lock.
6. The cloud platform of claim 5, wherein the cloud platform further comprises:
the authentication module is used for performing equipment identity authentication on the acquisition equipment and the intelligent door lock based on an equipment digital certificate of the acquisition equipment and an equipment digital certificate of the intelligent door lock; and if the equipment identity authentication is legal, sending the encrypted fingerprint identification information to the intelligent door lock authenticated by the cloud platform.
7. An intelligent door lock, characterized in that, intelligent door lock includes:
a receiving module, configured to receive the encrypted fingerprint identification information sent by the cloud platform according to claim 5;
the first decryption module is used for decrypting the encrypted fingerprint identification information based on a private key PrIKey-Lock of a built-in encryption key to obtain a symmetric key KeyData;
the second decryption module is used for decrypting the encrypted fingerprint identification information again by using the symmetric key KeyData to obtain a fingerprint characteristic value FingerData;
and the writing module is used for writing the fingerprint characteristic value Fingerdata.
8. A fingerprint processing system, the system comprising: an acquisition device, the cloud platform of any of claims 5-6 and the smart door lock of claim 7;
the acquisition equipment is used for acquiring fingerprint information of a user, generating a fingerprint characteristic value FingerData based on the fingerprint information, receiving a first symmetric key KeyData sent by the cloud platform, encrypting the fingerprint characteristic value FingerData based on the first symmetric key KeyData, sending the obtained first key information En-fingerData to the cloud platform, or generating a second symmetric key KeyData, receiving a public key PubKey-Lock of an encryption key pair of the intelligent door Lock sent by the cloud platform, encrypting the public key PubKey-Lock of the encryption key pair of the intelligent door Lock based on the second symmetric key KeyData and the fingerprint characteristic value FingerData, and obtaining an encrypted fingerprint identification
Identifying information and sending the encrypted fingerprint identification information to a cloud platform;
the cloud platform is used for acquiring a public key PubKey-Lock of an encryption key pair of the intelligent door Lock, sending the public key PubKey-Lock of the encryption key pair of the intelligent door Lock to the acquisition equipment, receiving the encrypted fingerprint identification information sent by the acquisition equipment, sending the encrypted fingerprint identification information to the intelligent door Lock, or acquiring the public key PubKey-Lock of the encryption key pair of the intelligent door Lock, generating a first symmetric key KeyData, sending the first symmetric key KeyData to the acquisition equipment, receiving the first key information En-FigerData sent by the acquisition equipment, encrypting the first symmetric key KeyData based on the public key PubKey-Lock of the encryption key pair of the intelligent door Lock to obtain second key information En-KeyData, and adding the first key information En-FigerData and the second key information En-KeyData to form The encrypted fingerprint identification information is sent to the intelligent door lock;
the intelligent door lock is used for receiving the encrypted fingerprint identification information sent by the cloud platform; decrypting the encrypted fingerprint identification information based on a private key PrIKey-Lock of a built-in encryption key to obtain a symmetric key KeyData; decrypting the encrypted fingerprint identification information again by using the symmetric key KeyData to obtain a fingerprint characteristic value Fingerdata; and writing the fingerprint characteristic value Fingerdata.
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