CN104468626A - System and method for achieving wireless authentication encryption of mobile terminal - Google Patents
System and method for achieving wireless authentication encryption of mobile terminal Download PDFInfo
- Publication number
- CN104468626A CN104468626A CN201410837945.9A CN201410837945A CN104468626A CN 104468626 A CN104468626 A CN 104468626A CN 201410837945 A CN201410837945 A CN 201410837945A CN 104468626 A CN104468626 A CN 104468626A
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- mobile terminal
- access point
- network access
- imei
- mac address
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
Abstract
The invention relates to a system and method for achieving wireless authentication encryption of a mobile terminal. The system comprises the mobile terminal and a network access point. The mobile terminal is used for sending the IMEI of the mobile terminal to the network access point when communication is established between the mobile terminal and the network access point for the first time and sending an authentication request message of the IMEI of the mobile terminal to the network access point when an original wireless connecting password is failure in authentication. The network access point is used for storing the IMEI and the MAC address corresponding to the mobile terminal and carrying out authentication on the mobile terminal when the original wireless connecting password is failure in authentication. The system and method for achieving wireless authentication encryption of the mobile terminal are achieved through the structure, when the wireless connecting password in the AP is modified, if the mobile terminal is connected with the AP, the mobile terminal can carry out authentication through the IMEI, an encrypted secret key is generated again on the basis of the IMEI, a user of the mobile terminal can connect the network conveniently, the user experience is improved, and the wider application range is achieved.
Description
Technical field
The present invention relates to radio network technique field, particularly relate to mobile terminal wireless network authentication technical field, specifically refer to a kind of system and method realizing the encryption of mobile terminal wireless authentication.
Background technology
Authenticated encryption is WLAN (Wireless Local Area Network, WLAN (wireless local area network)) in conventional method for protecting, certification conventional at present has wildcard or 802.1X mode, conventional cipher mode has TKIP (Temporal Key IntegrityProtocol, temporary key integrated protocol), CCMP (Counter CBC-MAC Protocol) etc., no matter use which method, as AP (Access Point, access point) in be used for the password of authenticated encryption because of after some reasons are modified, user needs duplicate removal newly to obtain password, and re-start certification and could connect AP, this can allow user's experience be deteriorated to a certain extent.
The international identification code IMEI (International Mobile Equipment Identity, international mobile equipment identification number) of mobile device is the mark of difference mobile terminal device, and it is stored in mobile terminal device, and can not revise.It is sightless for domestic consumer, needs to be obtained from equipment by some special methods or instruction, and compared with MAC Address in wireless device, it does not belong to ICP/IP protocol bunch, cannot be obtained by the method for Network Sniffing.
Summary of the invention
The object of the invention is the shortcoming overcoming above-mentioned prior art, provide a kind of when can realize former wireless cipher authentication failed mobile device IMEI can be used to carry out certification, facilitate user network to connect, there is the system and method realizing the encryption of mobile terminal wireless authentication of broader applications scope.
To achieve these goals, the system and method realizing the encryption of mobile terminal wireless authentication of the present invention has following formation:
This realizes the system of mobile terminal wireless authentication encryption, and its main feature is, described system comprises:
Mobile terminal, in order to the IMEI that sends equipment of itself when setting up communication for the first time with Network Access Point to described Network Access Point and sends the extremely described Network Access Point of the authentication request packet that comprises equipment of itself IMEI when former wireless connections cipher authentication failure;
Network Access Point, in order to preserve IMEI corresponding to mobile terminal and MAC Address and to carry out certification when former wireless connections cipher authentication is failed to described mobile terminal.
The invention still further relates to a kind of method realizing the encryption of mobile terminal wireless authentication based on described system, its main feature is, described method comprises the following steps:
(1) mobile terminal described in sends the IMEI of equipment of itself to described Network Access Point when setting up communication for the first time with Network Access Point;
(2) Network Access Point described in preserves IMEI corresponding to mobile terminal and MAC Address;
(3) transmission when former wireless connections cipher authentication failure of the mobile terminal described in comprises the authentication request packet of equipment of itself IMEI to described Network Access Point;
(4) Network Access Point described in carries out certification according to IMEI corresponding to mobile terminal stored and MAC Address to mobile terminal.
Preferably, described mobile terminal sends the IMEI of equipment of itself to described Network Access Point when setting up communication for the first time with Network Access Point, be specially:
Described mobile terminal sends IMEI and the current timestamp comprising equipment of itself data message when setting up communication for the first time with Network Access Point is to described Network Access Point and preserve current timestamp.
Preferably, described Network Access Point preserves IMEI corresponding to mobile terminal and MAC Address, is specially:
The IMEI of the mobile terminal of acquisition and MAC Address compare with the storage data in database and IMEI corresponding for the mobile terminal do not stored and MAC Address are preserved by described Network Access Point.
Preferably, the transmission when former wireless connections cipher authentication failure of described mobile terminal comprises the authentication request packet of equipment of itself IMEI to described Network Access Point, comprises the following steps:
(3-1) mobile terminal described in sends former wireless connections password to described Network Access Point, if certification is passed through, then continues follow-up connection, then terminates to exit, if authentification failure, then continue step (3-2);
(3-2) authentication request packet of the MAC Address and IMEI that comprise equipment of itself is sent to described Network Access Point by the mobile terminal described in.
More preferably, described Network Access Point carries out certification according to IMEI corresponding to mobile terminal stored and MAC Address to mobile terminal, is specially:
The data stored in MAC Address in described authentication request packet and IMEI and database compare by described Network Access Point, if unanimously, then by certification, otherwise authentification failure.
More preferably, the authentication request packet of the MAC Address and IMEI that comprise equipment of itself is sent to described Network Access Point by described mobile terminal, comprises the following steps:
(3-2-1) MAC Address of equipment of itself and IMEI are carried out MD5 algorithm and are added in authentication request packet by the MD5 algorithm of the MD5 value of acquisition and use by the mobile terminal described in;
(3-2-2) described authentication request packet is sent to described Network Access Point by the mobile terminal described in.
Further, described Network Access Point carries out certification according to IMEI corresponding to mobile terminal stored and MAC Address to mobile terminal, comprises the following steps:
(4-1) MAC Address in the authentication request packet described in the Network Access Point described in extracts also compares with the MAC Address in database;
(4-2) MAC Address in database and IMEI are carried out MD5 algorithm by the MD5 algorithm in the authentication request packet described in the Network Access Point described in adopts;
(4-3) the MD5 value in the MD5 value of acquisition and described authentication request packet compares by the Network Access Point described in, if unanimously, by certification, otherwise authentification failure.
Have employed the system and method realizing the encryption of mobile terminal wireless authentication in this invention, there is following beneficial effect:
(1) after the wireless connections password in AP is modified, if this mobile terminal device had connected this AP, and also retains the relevant information of this mobile device in AP, this mobile device can use IMEI to carry out certification, and based on IMEI, regenerate the key of encryption, facilitate the interconnection network of mobile phone users, improve user's experience, there is range of application widely;
(2) method of the present invention is supplementing known 802.11 authentication encryption methods, do not affect known 802.11 authenticated encryption flow processs, when the side in mobile terminal or AP does not support method of the present invention, known flow process can be still used to carry out certification and encryption; Simultaneously in order to convenient management, AP keeper can carry out deletion action to the database having the information such as MAC and IMEI in AP; When information of mobile terminal corresponding in AP is deleted, can again builds product entry, and perform the flow process of the method.
Accompanying drawing explanation
Fig. 1 is the flow chart realizing the method for mobile terminal wireless authentication encryption of the present invention.
Fig. 2 is the flow chart that the method realizing the encryption of mobile terminal wireless authentication of the present invention is applied to specific embodiment.
Embodiment
In order to more clearly describe technology contents of the present invention, conduct further description below in conjunction with specific embodiment.
The present invention relates generally to wireless local WLAN (Wireless Local Area Network) Network Communication field, especially the authenticated encryption technology of mobile terminal of IEEE802.11 standard.The present invention discloses a kind of method and system of wireless authentication encryption of mobile terminal, its method is after the wireless connections password in AP is modified, if this mobile terminal device had connected this AP, and also retains the relevant information of this mobile device in AP, this mobile device can use IMEI to carry out certification, and based on IMEI, regenerates the key of encryption, facilitate the interconnection network of mobile phone users, and reliable security assurance information is provided.Its system comprises two parts, is the mobile terminal and the AP equipment that realize the method respectively.Mobile terminal, in order to the IMEI that sends equipment of itself when setting up communication for the first time with Network Access Point to described Network Access Point and sends the extremely described Network Access Point of the authentication request packet that comprises equipment of itself IMEI when former wireless connections cipher authentication failure; Network Access Point, in order to preserve IMEI corresponding to mobile terminal and MAC Address and to carry out certification when former wireless connections cipher authentication is failed to described mobile terminal.
As shown in Figure 1, the method realizing the encryption of mobile terminal wireless authentication of the present invention comprises the following steps:
(1) mobile terminal described in sends the IMEI of equipment of itself to described Network Access Point when setting up communication for the first time with Network Access Point;
(2) Network Access Point described in preserves IMEI corresponding to mobile terminal and MAC Address;
(3) transmission when former wireless connections cipher authentication failure of the mobile terminal described in comprises the authentication request packet of equipment of itself IMEI to described Network Access Point;
(4) Network Access Point described in carries out certification according to IMEI corresponding to mobile terminal stored and MAC Address to mobile terminal.
In one preferably execution mode, described mobile terminal sends the IMEI of equipment of itself to described Network Access Point when setting up communication for the first time with Network Access Point, be specially:
Described mobile terminal sends IMEI and the current timestamp comprising equipment of itself data message when setting up communication for the first time with Network Access Point is to described Network Access Point and preserve current timestamp.
In one preferably execution mode, described Network Access Point preserves IMEI corresponding to mobile terminal and MAC Address, is specially:
The IMEI of the mobile terminal of acquisition and MAC Address compare with the storage data in database and IMEI corresponding for the mobile terminal do not stored and MAC Address are preserved by described Network Access Point.
In one preferably execution mode, the transmission when former wireless connections cipher authentication failure of described mobile terminal comprises the authentication request packet of equipment of itself IMEI to described Network Access Point, comprises the following steps:
(3-1) mobile terminal described in sends former wireless connections password to described Network Access Point, if certification is passed through, then continues follow-up connection, then terminates to exit, if authentification failure, then continue step (3-2);
(3-2) authentication request packet of the MAC Address and IMEI that comprise equipment of itself is sent to described Network Access Point by the mobile terminal described in.
In a kind of better execution mode, described Network Access Point carries out certification according to IMEI corresponding to mobile terminal stored and MAC Address to mobile terminal, is specially:
The data stored in MAC Address in described authentication request packet and IMEI and database compare by described Network Access Point, if unanimously, then by certification, otherwise authentification failure.
In a kind of better execution mode, the authentication request packet of the MAC Address and IMEI that comprise equipment of itself is sent to described Network Access Point by described mobile terminal, comprises the following steps:
(3-2-1) MAC Address of equipment of itself and IMEI are carried out MD5 algorithm and are added in authentication request packet by the MD5 algorithm of the MD5 value of acquisition and use by the mobile terminal described in;
(3-2-2) described authentication request packet is sent to described Network Access Point by the mobile terminal described in.
In one further execution mode, described Network Access Point carries out certification according to IMEI corresponding to mobile terminal stored and MAC Address to mobile terminal, comprises the following steps:
(4-1) MAC Address in the authentication request packet described in the Network Access Point described in extracts also compares with the MAC Address in database;
(4-2) MAC Address in database and IMEI are carried out MD5 algorithm by the MD5 algorithm in the authentication request packet described in the Network Access Point described in adopts;
(4-3) the MD5 value in the MD5 value of acquisition and described authentication request packet compares by the Network Access Point described in, if unanimously, by certification, otherwise authentification failure.
The present invention is introduced further below with a specific embodiment.
As shown in Figure 2, the specific implementation flow process of method realizing the encryption of mobile terminal wireless authentication of the present invention is as follows:
(1) mobile terminal device with WIFI function scans corresponding AP equipment;
(2) mobile terminal device enters certification with AP and associates, and therefore process belongs to known field, and the present invention is not described in detail;
(3), after mobile terminal and AP set up and communicate, send a data message stabbed with oneself IMEI and current time to AP, mobile terminal retains this timestamp simultaneously;
(4) AP is after receiving the data message that mobile terminal sends over IMEI, extract IMEI and timestamp, and from message, obtain the MAC Address of current mobile terminal, existing entry in MAC, IMEI and database is compared, as do not found respective conditions, then MAC, IMEI and timestamp are kept in corresponding database;
(5) mobile terminal and AP set up normal data communication;
During wireless connections password as unmodified in AP, mobile terminal uses normal authenticated encryption flow process to carry out data cube computation, and after AP have modified connection password, it is as follows that it connects flow process:
(1) mobile terminal device with WIFI function scans corresponding AP equipment;
(2) mobile terminal device uses original wireless connections password to carry out certification, as certification is passed through, then proceed follow-up connection, after as obstructed in certification, the MAC Address of mobile device and IMEI are carried out MD5 algorithm, and the MD5 value of acquisition and the MD5 algorithm that uses are sent to AP by a special authentication request packet.
(3) AP is after receiving this authentication request packet, first the MAC Address in taking-up message identifying and the MAC Address in database compare, then use identical MD5 algorithm that the MAC Address in database and IMEI are carried out MD5, and the value obtained in value and message compares, if two groups more all can be found identical value, then respond certification to pass through, and proceed encrypted negotiation.Otherwise response authentification failure.
(4) when being encrypted negotiation, PMK (the Pairwise Master Key that mobile terminal uses, pairwise master key) be the MD5 value of the timestamp that retains before and IMEI, the PMK of AP is the MD5 value of IMEI and timestamp in the entry that in database, certification is passed through, when negotiation by after, can normal data communication being carried out, as consulted not pass through, then disconnecting.
Table 1 is IMEI message identifying form, belongs to the certification subtype in 802.11 management frames, and this message when mobile terminal uses original code certification unsuccessful, uses IMEI to carry out the message format of certification after being used for AP amendment connection authentication password:
Table 1
| Auth type | Identification sequences number | Conditional code | Challenge content |
| 2 bytes | 2 bytes | 2 bytes | 32 bytes |
Table 2 is IMEI authentication request packet, wherein type of message is 0xFF00, sequence number is 1, and conditional code retains not certified use, and challenge content is the MD5 value that MAC and the IMEI of mobile terminal generates, this type makes the auth type of view in this invention by oneself, when mobile terminal uses original code authentification failure, this message identifying will be sent to AP, AP when receiving the message identifying of this type, the identifying procedure in Fig. 2 flow process can be performed, and return the message of the response shown in table 3.
Table 2
| Auth type | Identification sequences number | Conditional code | Challenge content |
| 0xFF00 | 1 | Retain | MD5 value |
Table 3 is IMEI authentication response message, wherein AP wherein type of message be 0xFF00, sequence number is 2, and conditional code is 0 or 1, and wherein 0 is authentication success, and 1 is authentification failure, challenge content be sky.AP receive that mobile terminal sends over make view authentication request by oneself after, the identifying procedure in Fig. 2 flow process can be performed, and return this message.
Table 3
| Auth type | Identification sequences number | Conditional code | Challenge content |
| 0xFF00 | 2 | 0 or 1 | Nothing |
Two formula are challenge content and PMK generating algorithm below, wherein CHALLENGETEXT is the challenge content that algorithm generates, MAC is the wireless MAC address of mobile terminal, IMEI is the international identification code of mobile device of wireless terminal, and the TIMESTAMP in PMK generating algorithm is the timestamp in database.
CHALLENGETEXT＝MD5(MAC，IMEI)；
PMK＝MD5(IMEI，TIMESTAMP)。
Have employed the system and method realizing the encryption of mobile terminal wireless authentication in this invention, there is following beneficial effect:
(1) after the wireless connections password in AP is modified, if this mobile terminal device had connected this AP, and also retains the relevant information of this mobile device in AP, this mobile device can use IMEI to carry out certification, and based on IMEI, regenerate the key of encryption, facilitate the interconnection network of mobile phone users, improve user's experience, there is range of application widely;
(2) method of the present invention is supplementing known 802.11 authentication encryption methods, do not affect known 802.11 authenticated encryption flow processs, when the side in mobile terminal or AP does not support method of the present invention, known flow process can be still used to carry out certification and encryption; Simultaneously in order to convenient management, AP keeper can carry out deletion action to the database having the information such as MAC and IMEI in AP; When information of mobile terminal corresponding in AP is deleted, can again builds product entry, and perform the flow process of the method.
In this description, the present invention is described with reference to its specific embodiment.But, still can make various amendment and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (8)
1. realize a system for mobile terminal wireless authentication encryption, it is characterized in that, described system comprises:
Mobile terminal, in order to the IMEI that sends equipment of itself when setting up communication for the first time with Network Access Point to described Network Access Point and sends the extremely described Network Access Point of the authentication request packet that comprises equipment of itself IMEI when former wireless connections cipher authentication failure;
Network Access Point, in order to preserve IMEI corresponding to mobile terminal and MAC Address and to carry out certification when former wireless connections cipher authentication is failed to described mobile terminal.
2. realize a method for mobile terminal wireless authentication encryption based on system according to claim 1, it is characterized in that, described method comprises the following steps:
(1) mobile terminal described in sends the IMEI of equipment of itself to described Network Access Point when setting up communication for the first time with Network Access Point;
(2) Network Access Point described in preserves IMEI corresponding to mobile terminal and MAC Address;
(3) transmission when former wireless connections cipher authentication failure of the mobile terminal described in comprises the authentication request packet of equipment of itself IMEI to described Network Access Point;
(4) Network Access Point described in carries out certification according to IMEI corresponding to mobile terminal stored and MAC Address to mobile terminal.
3. the method realizing the encryption of mobile terminal wireless authentication according to claim 2, is characterized in that, described mobile terminal sends the IMEI of equipment of itself to described Network Access Point when setting up communication for the first time with Network Access Point, be specially:
Described mobile terminal sends IMEI and the current timestamp comprising equipment of itself data message when setting up communication for the first time with Network Access Point is to described Network Access Point and preserve current timestamp.
4. the method realizing the encryption of mobile terminal wireless authentication according to claim 2, is characterized in that, described Network Access Point preserves IMEI corresponding to mobile terminal and MAC Address, is specially:
The IMEI of the mobile terminal of acquisition and MAC Address compare with the storage data in database and IMEI corresponding for the mobile terminal do not stored and MAC Address are preserved by described Network Access Point.
5. the method realizing the encryption of mobile terminal wireless authentication according to claim 2, it is characterized in that, the transmission when former wireless connections cipher authentication failure of described mobile terminal comprises the authentication request packet of equipment of itself IMEI to described Network Access Point, comprises the following steps:
(3-1) mobile terminal described in sends former wireless connections password to described Network Access Point, if certification is passed through, then continues follow-up connection, then terminates to exit, if authentification failure, then continue step (3-2);
(3-2) authentication request packet of the MAC Address and IMEI that comprise equipment of itself is sent to described Network Access Point by the mobile terminal described in.
6. the method realizing the encryption of mobile terminal wireless authentication according to claim 5, is characterized in that, described Network Access Point carries out certification according to IMEI corresponding to mobile terminal stored and MAC Address to mobile terminal, is specially:
The data stored in MAC Address in described authentication request packet and IMEI and database compare by described Network Access Point, if unanimously, then by certification, otherwise authentification failure.
7. the method realizing the encryption of mobile terminal wireless authentication according to claim 5, it is characterized in that, the authentication request packet of the MAC Address and IMEI that comprise equipment of itself is sent to described Network Access Point by described mobile terminal, comprises the following steps:
(3-2-1) MAC Address of equipment of itself and IMEI are carried out MD5 algorithm and are added in authentication request packet by the MD5 algorithm of the MD5 value of acquisition and use by the mobile terminal described in;
(3-2-2) described authentication request packet is sent to described Network Access Point by the mobile terminal described in.
8. the method realizing the encryption of mobile terminal wireless authentication according to claim 7, is characterized in that, described Network Access Point carries out certification according to IMEI corresponding to mobile terminal stored and MAC Address to mobile terminal, comprises the following steps:
(4-1) MAC Address in the authentication request packet described in the Network Access Point described in extracts also compares with the MAC Address in database;
(4-2) MAC Address in database and IMEI are carried out MD5 algorithm by the MD5 algorithm in the authentication request packet described in the Network Access Point described in adopts;
(4-3) the MD5 value in the MD5 value of acquisition and described authentication request packet compares by the Network Access Point described in, if unanimously, by certification, otherwise authentification failure.
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| CN107484171A (en) * | 2017-09-11 | 2017-12-15 | 宇龙计算机通信科技(深圳)有限公司 | Focus cut-in method and system |
| CN107872076A (en) * | 2016-09-27 | 2018-04-03 | 环达电脑(上海)有限公司 | wireless encryption charging system and method |
| CN109361682A (en) * | 2018-11-12 | 2019-02-19 | 深圳鳍源科技有限公司 | A kind of communication means, device, equipment and storage medium |
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| CN107872076A (en) * | 2016-09-27 | 2018-04-03 | 环达电脑(上海)有限公司 | wireless encryption charging system and method |
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| CN114513300B (en) * | 2021-12-27 | 2023-09-29 | 广州广哈通信股份有限公司 | Authentication method, access equipment and system |
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