CN109309571A - A kind of setting method of key - Google Patents
A kind of setting method of key Download PDFInfo
- Publication number
- CN109309571A CN109309571A CN201811347392.3A CN201811347392A CN109309571A CN 109309571 A CN109309571 A CN 109309571A CN 201811347392 A CN201811347392 A CN 201811347392A CN 109309571 A CN109309571 A CN 109309571A
- Authority
- CN
- China
- Prior art keywords
- key
- user
- user equipment
- factory settings
- setting section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0866—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving user or device identifiers, e.g. serial number, physical or biometrical information, DNA, hand-signature or measurable physical characteristics
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention discloses a kind of setting method of key, the key includes user's setting section and factory settings part, and user's setting section is the nfc card number of user equipment.The key is 16 keys, and wherein user's setting section is located at first 7, and factory settings part is located at latter 9, and user's setting section is the 7 byte card numbers of standard NFC.The setting method of key of the present invention is simple and effective, it ensure that the uniqueness of the key of each user equipment by the uniqueness of NCF card number, to improve the safety of user equipment communication, even if the factory settings part of key or the leakage of single nfc card number, will not threaten to other users equipment；The key of each user equipment never repeats simultaneously, to improve the stability of system operation.
Description
Technical field
The present invention relates to field of cryptography, particularly relate to a kind of cipher key setting method of symmetric encipherment algorithm.
Background technique
With universal and wireless communication technique the development of Internet of Things (IOT) product, more and more internet of things equipment
It needs wirelessly to be communicated with intelligent terminal or cloud platform.IOT equipment is typically wirelessly led to
Letter.If communication uses plaintext communication, it is easy to be listened to and be captured by third party, so general device communication all can be using encryption
Mode protect data communication.Since asymmetric encryption is complex, operation time is also long.Therefore, IOT equipment is most
It can be encrypted using symmetry algorithm.
Symmetric key encryption, also known as private key encryption or session key Encryption Algorithm, the i.e. sender and recipient of information make
Encrypting and decrypting data is gone with the same key.Its sharpest edges are that enciphering/deciphering speed is fast, are suitable for carrying out big data quantity
Encryption, but cipher key management difficult.The key of symmetry algorithm be it is fixed, by taking AES-128 as an example, come to the close of 16 bytes
Key.Presently the most common setting method is by factory settings.
The key of factory settings means that producer can decrypt the information of any one equipment, and grasps to it
Control.The equipment of client is all open for producer.If the key of producer is stolen or loses for some reason,
Any one equipment of client is all easy to be hacked, and there are great security risks.
For these reasons, some clients require that oneself sets key.But client often lacks certain profession and knows
Know, operates more complicated.Moreover, such as " 12345678... " etc. is such close if the password of setting is too simple
Key, which performs practically no function, not to be said, and has very that maximum probability is identical as the key of the other users of this system, extremely dangerous.
In view of this, the present inventor regarding to the issue above caused by many missings and inconvenience, and deeply conceive, and actively
Research improvement has a fling at and develops and design the present invention.
Summary of the invention
The purpose of the present invention is to provide a kind of setting methods of key, realize the uniqueness of each user equipment key,
To improve the safety of communication.
In order to achieve the above objectives, solution of the invention is:
A kind of setting method of key, the key include user's setting section and factory settings part, and user's setting section is
The nfc card number of user equipment.
The key is 16 keys, and wherein user's setting section is located at first 7, and factory settings part is located at latter 9, is used
Family setting section is the 7 byte card numbers of standard NFC.
The factory settings part encodes in a user device when producing user equipment；When communication, user equipment will be believed
Breath carries out encrypting and transmitting with the key, receives terminal when receiving information while obtaining the nfc card number for sending terminal, and with
The factory settings part of this terminal storage forms decruption key, and received information is decrypted, and completes communication process.
The setting method of key of the present invention is simple and effective, ensure that each user equipment by the uniqueness of NCF card number
The uniqueness of key, so that the safety of user equipment communication is improved, even if the factory settings part of key or single nfc card
Number leakage, will not threaten to other users equipment；The key of each user equipment never repeats simultaneously, to improve
The stability of system operation.
Specific embodiment
In order to further explain the technical solution of the present invention, being explained in detail below by specific embodiment the present invention
It states.
A kind of setting method of key, the key include user's setting section and factory settings part, user's setting section
For the nfc card number of user equipment.
Above-mentioned key is 16 keys, and wherein user's setting section is located at first 7, and factory settings part is located at latter 9, is used
Family setting section is the 7 byte card numbers of standard NFC.
Although user equipment may be made by different manufacturers, due to the ID coding of the nfc card number of user equipment
Rule must obey international numbering rule, therefore the whole world there is no the nfc cards of identical ID, the i.e. nfc card number of user equipment all
It is unique, to realize that the key of each user equipment is uniquely, never repeats, had both ensure that the peace of user equipment in this way
Quan Xing has also ensured the stability of whole system operation.
Nfc card is a kind of near-field sensing card simultaneously, can not visually be replicated；Moisture-proof, waterproof simultaneously, is easy to protect
It deposits, physical security also has great guarantee.
The setting method of above-mentioned key is simple and effective, ensure that the uniqueness of the key of each user equipment, to improve
The safety of user equipment communication will not be to other use even if the factory settings part of key or the leakage of single nfc card number
Family equipment threatens；The key of each user equipment never repeats simultaneously, to improve the stability of system operation.
Producer when producing user equipment by factory settings code segment in a user device so that each user equipment
There is the factory settings part of key.In communication, user equipment can be attached to nfc card number in the communication information, and information is used
Key of the invention is encrypted, receive terminal when receiving information simultaneously obtain transmission terminal nfc card number, and with this terminal
The factory settings part of storage forms decruption key, and received information is decrypted, and completes communication process.
Above-described embodiment and non-limiting product form and style of the invention, the ordinary skill people of any technical field
The appropriate changes or modifications that member does it, all should be regarded as not departing from patent category of the invention.
Claims (3)
1. a kind of setting method of key, it is characterised in that: the key includes user's setting section and factory settings part, is used
Family setting section is the nfc card number of user equipment.
2. a kind of setting method of key as described in claim 1, it is characterised in that: the key is 16 keys, wherein
User's setting section is located at first 7, and factory settings part is located at latter 9, and user's setting section is the 7 byte card numbers of standard NFC.
3. a kind of setting method of key as claimed in claim 1 or 2, it is characterised in that: the factory settings part is in life
It is encoded in a user device when producing user equipment；When communication, information is carried out encrypting and transmitting with the key by user equipment, is connect
Terminal is received when receiving information while obtaining the nfc card number for sending terminal, and is formed with the factory settings part of this terminal storage
Received information is decrypted in decruption key, completes communication process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811347392.3A CN109309571A (en) | 2018-11-13 | 2018-11-13 | A kind of setting method of key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811347392.3A CN109309571A (en) | 2018-11-13 | 2018-11-13 | A kind of setting method of key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109309571A true CN109309571A (en) | 2019-02-05 |
Family
ID=65222070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811347392.3A Pending CN109309571A (en) | 2018-11-13 | 2018-11-13 | A kind of setting method of key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109309571A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662363A (en) * | 2008-08-30 | 2010-03-03 | 怀化学院 | Multi-layer rolling code encryption and decryption technology |
| CN101958026A (en) * | 2010-09-15 | 2011-01-26 | 宇龙计算机通信科技(深圳)有限公司 | User authentication module setting method and system |
| CN101997678A (en) * | 2010-11-18 | 2011-03-30 | 东莞宇龙通信科技有限公司 | Password acquisition method and terminal |
| CN104270244A (en) * | 2014-09-12 | 2015-01-07 | 广东安居宝数码科技股份有限公司 | NFC encryption method and system |
| CN104281954A (en) * | 2014-04-30 | 2015-01-14 | 上海高研明鉴信息技术有限公司 | Anti-counterfeiting method for product |
| US9473295B2 (en) * | 2011-09-26 | 2016-10-18 | Cubic Corporation | Virtual transportation point of sale |
| CN106789086A (en) * | 2017-01-25 | 2017-05-31 | 中钞信用卡产业发展有限公司北京智能卡技术研究院 | A kind of digital signature method and its device for mobile terminal |
-
2018
- 2018-11-13 CN CN201811347392.3A patent/CN109309571A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662363A (en) * | 2008-08-30 | 2010-03-03 | 怀化学院 | Multi-layer rolling code encryption and decryption technology |
| CN101958026A (en) * | 2010-09-15 | 2011-01-26 | 宇龙计算机通信科技(深圳)有限公司 | User authentication module setting method and system |
| CN101997678A (en) * | 2010-11-18 | 2011-03-30 | 东莞宇龙通信科技有限公司 | Password acquisition method and terminal |
| US9473295B2 (en) * | 2011-09-26 | 2016-10-18 | Cubic Corporation | Virtual transportation point of sale |
| CN104281954A (en) * | 2014-04-30 | 2015-01-14 | 上海高研明鉴信息技术有限公司 | Anti-counterfeiting method for product |
| CN104270244A (en) * | 2014-09-12 | 2015-01-07 | 广东安居宝数码科技股份有限公司 | NFC encryption method and system |
| CN106789086A (en) * | 2017-01-25 | 2017-05-31 | 中钞信用卡产业发展有限公司北京智能卡技术研究院 | A kind of digital signature method and its device for mobile terminal |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210615 Address after: No. 15, Shishan North Road, Dongfu street, Haicang District, Xiamen City, Fujian Province, 361000 Applicant after: TBB POWER (XIAMEN) Co.,Ltd. Address before: 361000 room 351, No.1, Shishan Road, Dongfu street, Haicang District, Xiamen City, Fujian Province Applicant before: XIAMEN YUNTUO ZHIWEI TECHNOLOGY Co.,Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190205 |