CN112434318A - Internet of things remote equipment encryption method and system - Google Patents
Internet of things remote equipment encryption method and system Download PDFInfo
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- CN112434318A CN112434318A CN202011350515.6A CN202011350515A CN112434318A CN 112434318 A CN112434318 A CN 112434318A CN 202011350515 A CN202011350515 A CN 202011350515A CN 112434318 A CN112434318 A CN 112434318A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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Abstract
The invention provides an encryption method and system for remote equipment of the Internet of things, wherein the method comprises the following steps: receiving a calling request of target equipment; judging whether the target equipment meets a preset condition or not according to a calling request of the target equipment; if the target equipment meets the preset condition, sending information for representing successful calling to the target equipment, and acquiring identification information of the target equipment; encrypting the identification information of the target equipment by a preset encryption algorithm and a secret key to obtain encrypted data; the encrypted data is sent to the target device. According to the encryption method and system for the remote equipment of the Internet of things, the encryption process is completed by the dynamic link library, the decompilation difficulty of the dynamic link library is higher, the dynamic link library verifies the target equipment, a layer of guarantee is added indirectly to the security of the encrypted data, and therefore the obtained encrypted data is safer.
Description
Technical Field
The invention relates to the technical field of mobile security, in particular to an encryption method and system for remote equipment of the Internet of things.
Background
In the world of everything interconnection, 5G is added and is held, and thing networking equipment is more and more, and the form is also diversified, and the application scene is everywhere, and when thing networking equipment benefited the society, there was also the potential safety hazard that the information was stolen and brought, therefore thing networking equipment when communicating with other equipment, encrypt the information of equipment also is indispensable one step. In the existing method, equipment is usually encrypted through a secret key, the secret key is stored through a database, a lightweight database, a file and the like, the safety of the schemes is low, the secret key is easy to crack, the secret key is sometimes written in a program, but a JAVA language is easy to decompile, and reverse cracking can be performed through a source code, so that the problem that the equipment information is easily cracked through the secret key is solved, and great potential safety hazards exist due to the fact that the secret key is easy to crack.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect of large potential safety hazard in the prior art that equipment information is encrypted, so that an internet of things remote equipment encryption method and system are provided.
The invention provides an encryption method for remote equipment of the Internet of things, which is applied to a dynamic link library and comprises the following steps: receiving a calling request of target equipment; judging whether the target equipment meets a preset condition or not according to the calling request of the target equipment; if the target equipment meets a preset condition, sending information for representing successful calling to the target equipment, and acquiring identification information of the target equipment; encrypting the identification information of the target equipment by a preset encryption algorithm and a secret key to obtain encrypted data; and sending the encrypted data to the target device.
Optionally, in the encryption method for the remote device of the internet of things provided by the present invention, the call request of the target device includes a name and a signature of an application program of the target device, and the signature of the application program is calculated by a preset algorithm.
Optionally, in the encryption method for the remote device of the internet of things provided by the present invention, the step of determining whether the target device meets a preset condition according to the invocation request of the target device includes: judging whether the name and the signature of the application program of the target equipment conform to preset content or not; if the name and the signature of the application program of the target equipment are consistent with the preset content, the target equipment meets a preset condition; and if the name and the signature of the application program of the target equipment do not accord with the preset content, the target equipment does not meet the preset condition.
Optionally, in the encryption method for the remote device of the internet of things provided by the present invention, the step of setting the preset content includes: determining a name of at least one authorized application; calculating signatures corresponding to the names of the authorized application programs through a preset algorithm, wherein the signatures of the authorized application programs are different from each other; and correspondingly storing the name and the signature of the authorized application program to form the preset content.
Optionally, in the encryption method for the remote device of the internet of things provided by the present invention, if the target device does not satisfy the preset condition, an error warning is sent to the application program of the target device.
The invention provides an encryption method for remote equipment of the Internet of things, which is applied to target equipment and comprises the following steps: sending a calling request to the dynamic link library; if information used for representing successful calling and sent by the dynamic link library is received, sending an identifier of target equipment to the dynamic link library; and receiving encrypted data sent by the dynamic link library, wherein the encrypted data is generated by encrypting the identification information of the target equipment by the dynamic link library through a preset encryption algorithm and a secret key.
Optionally, in the encryption method for the remote device of the internet of things provided by the present invention, the call request includes a name and a signature of an application program for calling the dynamic link library, and the signature of the application program is calculated by a preset algorithm.
The third aspect of the invention provides an encryption system for remote equipment of the Internet of things, which comprises target equipment and a dynamic link library, wherein the target equipment sends a calling request to the dynamic link library; the dynamic link library receives the calling request, judges whether the target equipment meets a preset condition or not according to the calling request, and sends information for representing successful calling to the target equipment if the target equipment meets the preset condition; if the target equipment receives information for representing successful calling, the identification number of the target equipment is sent to the dynamic link library; the dynamic link library receives the identification number of the target equipment, encrypts the identification number of the target equipment through a preset encryption algorithm and a secret key to obtain encrypted data, and sends the encrypted data to the target equipment; the target device receives the encrypted data.
A fourth aspect of the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to perform the internet of things remote device encryption method as provided in the first or second aspect of the present invention.
The technical scheme of the invention has the following advantages:
according to the encryption method and system for the remote equipment of the Internet of things, when the identification information of the target equipment needs to be encrypted, a calling request is sent to the dynamic link library, the dynamic link library judges whether the target equipment meets the preset condition or not according to the calling request, the dynamic link library can obtain the identification information of the target equipment only when the target equipment meets the preset condition, the identification information of the target equipment is encrypted through a preset encryption algorithm and a secret key, and encrypted data obtained after encryption is sent to the target equipment. According to the encryption method and system for the remote equipment of the Internet of things, the encryption process is completed by the dynamic link library, the decompiling difficulty of the dynamic link library is high, so that an encryption algorithm and a secret key used by the dynamic link library are not easy to crack, and when the target equipment calls the dynamic link library, the dynamic link library can firstly verify the target equipment, so that the dynamic link library is prevented from being maliciously attacked by the terminal equipment, and a layer of guarantee is indirectly added on the security of encrypted data.
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 described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a block diagram illustrating a specific example of an encryption system for a remote device of the internet of things according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a specific example of an encryption system of a remote device of the internet of things in the embodiment of the present invention;
fig. 3 is a flowchart of a specific example of an internet-of-things remote device encryption method applied to a target device in the embodiment of the present invention;
fig. 4 is a flowchart of a specific example of an encryption method for an internet of things remote device applied to a dynamic link library in the embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but 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.
In the description of the present invention, it should be noted that the technical features related to the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
When the internet of things equipment communicates with other equipment, in order to guarantee the safety of information of a user of the internet of things equipment, encrypting the information of the equipment is also an indispensable step. In the existing method, equipment is usually encrypted through a secret key, the secret key is stored through a database, a lightweight database, a file and the like, the safety of the schemes is low, the secret key is easy to crack, the secret key is sometimes written in a program, but a JAVA language is easy to decompile, and reverse cracking can be performed through a source code, so that the problem that the equipment information is easily cracked through the secret key is solved, and great potential safety hazards exist due to the fact that the secret key is easy to crack.
The embodiment of the invention provides an encryption system for remote equipment of the internet of things, which comprises target equipment 1 and a dynamic link library 2, wherein the target equipment 1 is any intelligent terminal with a communication function, such as a smart phone with the communication function, an intelligent household appliance and the like, as shown in fig. 1. The dynamic link library 2 stores therein a key and a preset encryption algorithm, and the key and the encryption algorithm stored in the dynamic link library 2 are not disclosed to all users. As shown in fig. 2, the remote device encryption system of the internet of things encrypts the target device 1 by the following steps:
step S11: the target device 1 sends a call request to the dynamic link library 2. In practical applications, if the encryption process of the identification information of the target device 1 is completed in the target device 1, the user of the target device 1 can easily obtain the key used in the encryption, so in order to avoid the threat of the user of the target device 1 to the encrypted data, in the embodiment of the present invention, the encryption process is completed in the dynamic link library 2 by calling the dynamic link library 2.
Step S12: the dynamic link library 2 receives the call request, determines whether the target device 1 meets a preset condition according to the call request, and if the target device 1 meets the preset condition, executes step S13; if the target device 1 does not satisfy the preset condition, go to step S14. In a specific embodiment, the invocation request includes an identifier that can prove that the target device 1 is legitimate, and the dynamic link library 2 can determine whether the target device 1 meets the preset condition through the identifier.
Step S13: and sending information for representing successful calling to the target device 1.
Step S14: an error warning is sent to the application of the target device 1.
Step S15: and if the target device 1 receives the information for representing the successful calling, sending the identification information of the target device 1 to the dynamic link library 2. After the target device 1 successfully calls the dynamic link library 2, any data that needs to be encrypted may be sent to the dynamic link library 2, for example, the data may be identification information of the target device 1, and the identification information may specifically be an identification number that uniquely identifies the target device 1.
Step S16: and the dynamic link library 2 receives the identification information of the target equipment 1, and encrypts the identification number of the target equipment 1 through a preset encryption algorithm and a secret key to obtain encrypted data. Any algorithm that can encrypt the identification information may be used as the preset encryption algorithm, for example, in the embodiment of the present invention, the preset encryption algorithm may be set as a Hash-based Message Authentication Code (HMAC) algorithm.
Step S17: the dynamic link library 2 transmits the encrypted data to the target device 1.
Step S18: the target device 1 receives the encrypted data. When the target device 1 communicates with other terminals or servers, only the encrypted data transmission value needs to be transmitted to other terminals or servers, the whole process of encrypting the identification information is carried out in the dynamic link library 2, and the target device 1 cannot acquire the encryption algorithm and the secret key during encryption, so that the security of the encrypted data can be ensured even if the target device 1 is attacked.
According to the encryption system for the remote equipment of the Internet of things, which is provided by the embodiment of the invention, the encryption process is completed by the dynamic link library 2, the decompiling difficulty of the dynamic link library 2 is higher, so that an encryption algorithm and a secret key used by the dynamic link library 2 are not easy to crack, and when the target equipment 1 calls the dynamic link library 2, the dynamic link library 2 firstly verifies the target equipment 1, so that the dynamic link library 2 is prevented from being maliciously attacked by terminal equipment, and a layer of guarantee is indirectly added on the security of encrypted data.
In an alternative embodiment, in step S11, the target device 1 sends the call request to the dynamic link library 2, where the call request includes the name and the signature of the application program of the target device 1, the application program is the program in the target device 1 for calling the dynamic link library 2, and the signature of the application program is calculated by using a preset algorithm.
In an optional embodiment, when the calling request includes the name and the signature of the application program of the target device 1, in step S12, the dynamic link library 2 determines whether the target device 1 meets the preset condition according to the name and the signature of the application program, and specifically includes:
firstly, judging whether the name and the signature of the application program of the target device 1 conform to preset content or not, and if the name and the signature of the application program of the target device 1 conform to the preset content, indicating that the target device 1 meets preset conditions; if the name and the signature of the application program of the target device 1 do not conform to the preset content, it indicates that the target device 1 does not satisfy the preset condition.
In an optional embodiment, the preset content includes names and signatures of authorized applications that allow the dynamic link library 2 to be called, the names and signatures of the authorized applications are stored correspondingly, the names and signatures of the authorized applications are different from each other, and the signatures of the authorized applications in the preset content are calculated by a preset algorithm.
Example 2
The embodiment of the invention provides an encryption method for remote equipment of the internet of things, which is applied to target equipment and comprises the following steps of:
step S21: a call request is sent to the dynamic link library, and the details are described in embodiment 1 above for step S11.
Step S22: receiving information, which is sent by the dynamic link library and used for characterizing the success of the call, and sending identification information of the target device to the dynamic link library, for details, see the description of step S15 in embodiment 1 above.
Step S23: receiving encrypted data sent by the dynamic link library, where the encrypted data is generated by encrypting, by the dynamic link library, the identification information of the target device through a preset encryption algorithm and a key, and details of the encryption of the identification information by the dynamic link library are described in the above embodiment 1 with respect to step S16.
According to the encryption method for the remote equipment of the Internet of things, which is provided by the embodiment of the invention, the encryption process is completed by the dynamic link library, the decompiling difficulty of the dynamic link library is higher, so that an encryption algorithm and a secret key used by the dynamic link library are not easy to crack, and when the target equipment calls the dynamic link library, the dynamic link library firstly verifies the target equipment, so that the dynamic link library is prevented from being maliciously attacked by the terminal equipment, and a layer of guarantee is indirectly added on the security of encrypted data.
Example 3
The embodiment of the invention provides an encryption method for remote equipment of the Internet of things, which is applied to a dynamic link library and comprises the following steps of:
step S31: a call request of the target device is received, and details are described in embodiment 1 above with respect to step S12.
Step S32: determining whether the target device satisfies the preset condition according to the invocation request of the target device, the details of which are described in the above embodiment 1 for step S12, executing step S33 if the target device satisfies the preset condition, and sending an error warning to the application program of the target device if the target device does not satisfy the preset condition.
Step S33: and sending information for representing successful calling to the target equipment, and acquiring the identification information of the target equipment.
Step S34: the identification information of the target device is encrypted by a preset encryption algorithm and a key to obtain encrypted data, and details are described in embodiment 1 with respect to step S16.
Step S35: and sending the encrypted data to the target device.
According to the encryption method for the remote equipment of the Internet of things, which is provided by the embodiment of the invention, the encryption process is completed by the dynamic link library, the decompiling difficulty of the dynamic link library is higher, so that an encryption algorithm and a secret key used by the dynamic link library are not easy to crack, and when the target equipment calls the dynamic link library, the dynamic link library firstly verifies the target equipment, so that the dynamic link library is prevented from being maliciously attacked by the terminal equipment, and a layer of guarantee is indirectly added on the security of encrypted data.
Example 4
Embodiments of the present invention provide a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and the computer-readable storage medium stores computer-executable instructions, where the computer-executable instructions may execute an encryption method for an internet of things remote device in any of the above method embodiments. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. An encryption method for remote equipment of the Internet of things is applied to a dynamic link library, and comprises the following steps:
receiving a calling request of target equipment;
judging whether the target equipment meets a preset condition or not according to the calling request of the target equipment;
if the target equipment meets a preset condition, sending information for representing successful calling to the target equipment, and acquiring identification information of the target equipment;
encrypting the identification information of the target equipment by a preset encryption algorithm and a secret key to obtain encrypted data;
and sending the encrypted data to the target device.
2. The Internet of things remote device encryption method of claim 1,
the calling request of the target device comprises the name and the signature of the application program of the target device, and the signature of the application program is obtained through calculation of a preset algorithm.
3. The encryption method for the remote device of the internet of things according to claim 2, wherein the step of determining whether the target device meets a preset condition according to the call request of the target device comprises:
judging whether the name and the signature of the application program of the target equipment conform to preset content or not;
if the name and the signature of the application program of the target equipment are consistent with the preset content, the target equipment meets a preset condition;
and if the name and the signature of the application program of the target equipment do not accord with the preset content, the target equipment does not meet the preset condition.
4. The encryption method for the remote device of the internet of things as claimed in claim 3, wherein the step of setting the preset content comprises:
determining a name of at least one authorized application;
calculating signatures corresponding to the names of the authorized application programs through a preset algorithm, wherein the signatures of the authorized application programs are different from each other;
and correspondingly storing the name and the signature of the authorized application program to form the preset content.
5. The Internet of things remote device encryption method of claim 1,
and if the target equipment does not meet the preset condition, sending an error warning to an application program of the target equipment.
6. An encryption method for remote equipment of the internet of things is applied to target equipment, and comprises the following steps:
sending a calling request to the dynamic link library;
if information used for representing successful calling and sent by the dynamic link library is received, sending identification information of target equipment to the dynamic link library;
and receiving encrypted data sent by the dynamic link library, wherein the encrypted data is generated by encrypting the identification information of the target equipment by the dynamic link library through a preset encryption algorithm and a secret key.
7. The Internet of things remote device encryption method of claim 6,
the calling request comprises a name and a signature of an application program for calling the dynamic link library, and the signature of the application program is obtained through calculation of a preset algorithm.
8. An encryption system for remote equipment of the Internet of things is characterized by comprising target equipment and a dynamic link library,
the target equipment sends a calling request to the dynamic link library;
the dynamic link library receives the calling request, judges whether the target equipment meets a preset condition or not according to the calling request, and sends information for representing successful calling to the target equipment if the target equipment meets the preset condition;
if the target equipment receives information for representing successful calling, the identification information of the target equipment is sent to the dynamic link library;
the dynamic link library receives the identification information of the target equipment, encrypts the identification information of the target equipment through a preset encryption algorithm and a secret key to obtain encrypted data, and sends the encrypted data to the target equipment;
the target device receives the encrypted data.
9. A computer-readable storage medium storing computer instructions for causing a computer to perform the internet of things remote device encryption method of any one of claims 1-7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011350515.6A CN112434318A (en) | 2020-11-26 | 2020-11-26 | Internet of things remote equipment encryption method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011350515.6A CN112434318A (en) | 2020-11-26 | 2020-11-26 | Internet of things remote equipment encryption method and system |
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| CN108243176A (en) * | 2016-12-27 | 2018-07-03 | 腾讯科技（深圳）有限公司 | Data transmission method and device |
| CN108628611A (en) * | 2018-04-20 | 2018-10-09 | 无锡盈达聚力科技有限公司 | A kind of data calling method and data call device |
| WO2019210471A1 (en) * | 2018-05-02 | 2019-11-07 | 无锡盈达聚力科技有限公司 | Data invoking method and data invoking apparatus |
| US20200028672A1 (en) * | 2017-03-29 | 2020-01-23 | Yunding Network Technology (Beijing) Co., Ltd. | Secure communication method and smart lock system based thereof |
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2020
- 2020-11-26 CN CN202011350515.6A patent/CN112434318A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101908964A (en) * | 2010-08-17 | 2010-12-08 | 公安部第三研究所 | Method for authenticating remote virtual cryptographic equipment |
| CN105554001A (en) * | 2015-12-23 | 2016-05-04 | 北京奇虎科技有限公司 | Communication method and system based on encryption |
| CN108243176A (en) * | 2016-12-27 | 2018-07-03 | 腾讯科技（深圳）有限公司 | Data transmission method and device |
| US20200028672A1 (en) * | 2017-03-29 | 2020-01-23 | Yunding Network Technology (Beijing) Co., Ltd. | Secure communication method and smart lock system based thereof |
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