CN105282737A - Wireless network system and safety certification method thereof - Google Patents
Wireless network system and safety certification method thereof Download PDFInfo
- Publication number
- CN105282737A CN105282737A CN201510792038.1A CN201510792038A CN105282737A CN 105282737 A CN105282737 A CN 105282737A CN 201510792038 A CN201510792038 A CN 201510792038A CN 105282737 A CN105282737 A CN 105282737A
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- China
- Prior art keywords
- routing device
- beacon message
- wireless communication
- communication equipment
- sequence number
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a wireless network system and a safety certification method thereof. The safety certification method comprises: commanding a wireless network device to pass a serial number in a beacon message which is provided with a preset encryption algorithm and is encrypted and is to be sent; commanding the wireless network device to send the encrypted beacon message to a router; decrypting the beacon message by the router, according to the decryption algorithm corresponding to the encryption algorithm, so as to acquire the serial number; and determining whether the wireless network device accesses the related wireless network by the router according to the analysis of the serial number. The safety certification method can certificate the devices accessing the wireless network and can guarantee the safety of network.
Description
Technical field
The present invention relates to network communication field, particularly relate to the safety certifying method of a kind of Radio Network System and application thereof.
Background technology
Along with the development of the Internet and wireless network, increasing people uses wireless mode access network by router, and the safety of wireless network is also more and more subject to people's attention.WLAN wireless network is the network of an opening, wireless " administrative message " that wireless terminal and the network equipment send is all expressly send, anyone in environment can grab relevant message, if the password in message and checking number not encryption, be easy to be utilized as leak to attack, Internet resources are caused to exhaust, even network equipment paralysis.So need certification wireless network being carried out to fail safe.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide the safety certifying method of a kind of Radio Network System and application thereof, the access of Wireless Communication Equipment can not carry out the problem of safety certification in Radio Network System for solve in prior art.
For achieving the above object and other relevant objects, the invention provides a kind of safety certifying method, comprise the steps: to make a Wireless Communication Equipment by the sequence number in predetermined encryption algorithm for encryption beacon message to be sent; Make described Wireless Communication Equipment that the described beacon message after encryption is sent to a routing device; Described routing device, according to the decipherment algorithm corresponding with described cryptographic algorithm, is decrypted described beacon message, to obtain described sequence number; Described routing device, according to the analysis to described sequence number, accesses relevant wireless network to judge whether to allow described Wireless Communication Equipment.
In a specific embodiment of the present invention, described routing device sets up the database storing multiple secure serial number in advance, described routing device judges whether the described sequence number in described beacon message is present in described database, if, then judge that described Wireless Communication Equipment is legal, allow the wireless network that its access is relevant to described routing device; If not, then judge that described Wireless Communication Equipment is illegal, forbid the wireless network that its access is relevant to described routing device.
In a specific embodiment of the present invention, described cryptographic algorithm is RC4 cryptographic algorithm.
In a specific embodiment of the present invention, described RC4 cryptographic algorithm comprises initialization algorithm and pseudorandom password generating algorithm.
In a specific embodiment of the present invention, after the sequence number of described Wireless Communication Equipment in the described beacon message to be sent of encryption, added in vendorspecific field; And described routing device is after receiving described beacon message, according to the decipherment algorithm corresponding with described cryptographic algorithm, decipher the vendorspecific field in described beacon message, to obtain described sequence number.
For achieving the above object and other relevant objects, the present invention also provides a kind of Radio Network System, comprises Wireless Communication Equipment and routing device; Described beacon message after encryption in order to pass through the sequence number in predetermined encryption algorithm for encryption beacon message to be sent, and is sent to a routing device by described Wireless Communication Equipment; Described routing device receives described beacon message, and according to the decipherment algorithm corresponding with described cryptographic algorithm, is decrypted described beacon message, to obtain described sequence number; And according to the analysis to described sequence number, to judge that whether described Wireless Communication Equipment is legal.
In a specific embodiment of the present invention, described routing device sets up the database storing multiple secure serial number in advance, described routing device judges whether the described sequence number in described beacon message is present in described database, if, then judge that described Wireless Communication Equipment is legal, allow the wireless network that its access is relevant to described routing device; If not, then judge that described Wireless Communication Equipment is illegal, forbid the wireless network that its access is relevant to described routing device.
In a specific embodiment of the present invention, described cryptographic algorithm is RC4 cryptographic algorithm.
In a specific embodiment of the present invention, described RC4 cryptographic algorithm comprises initialization algorithm and pseudorandom password generating algorithm.
In a specific embodiment of the present invention, after the sequence number of described Wireless Communication Equipment in the described beacon message to be sent of encryption, added in vendorspecific field; And described routing device is after receiving described beacon message, according to the decipherment algorithm corresponding with described cryptographic algorithm, decipher the vendorspecific field in described beacon message, to obtain described sequence number.
As mentioned above, the safety certifying method of Radio Network System of the present invention and application thereof, makes a Wireless Communication Equipment by the sequence number in predetermined encryption algorithm for encryption beacon message to be sent; Make described Wireless Communication Equipment that the described beacon message after encryption is sent to a routing device; Described routing device, according to the decipherment algorithm corresponding with described cryptographic algorithm, is decrypted described beacon message, to obtain described sequence number; Described routing device, according to the analysis to described sequence number, accesses relevant wireless network to judge whether to allow described Wireless Communication Equipment.Certification can be carried out to the equipment of access of radio network, ensure the fail safe of network.
Accompanying drawing explanation
Fig. 1 is shown as safety certifying method of the present invention schematic flow sheet in one embodiment.
Fig. 2 is shown as Radio Network System of the present invention module diagram in one embodiment.
Fig. 3 is shown as the application schematic diagram of Wireless Communication Equipment in the present invention one specific embodiment.
Fig. 4 is shown as the application schematic diagram of routing device in the present invention one specific embodiment.
Element numbers explanation
1 Radio Network System
11 Wireless Communication Equipment
12 routing devices
S11 ~ S14 step
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.It should be noted that, when not conflicting, the feature in following examples and embodiment can combine mutually.
It should be noted that, the diagram provided in following examples only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in diagram but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Refer to Fig. 1, be shown as safety certifying method of the present invention schematic flow sheet in one embodiment.Described method comprises the steps:
S11: make a Wireless Communication Equipment by the sequence number in predetermined encryption algorithm for encryption beacon message to be sent.
S12: make described Wireless Communication Equipment that the described beacon message after encryption is sent to a routing device.
S13: described routing device, according to the decipherment algorithm corresponding with described cryptographic algorithm, is decrypted described beacon message, to obtain described sequence number.
S14: described routing device, according to the analysis to described sequence number, accesses relevant wireless network to judge whether to allow described Wireless Communication Equipment.
In a specific embodiment of the present invention, described routing device sets up the database storing multiple secure serial number in advance, described routing device judges whether the described sequence number in described beacon message is present in described database, if, then judge that described Wireless Communication Equipment is legal, allow the wireless network that its access is relevant to described routing device; If not, then judge that described Wireless Communication Equipment is illegal, forbid the wireless network that its access is relevant to described routing device.
In a specific embodiment of the present invention, after the sequence number of described Wireless Communication Equipment in the described beacon message to be sent of encryption, added in vendorspecific field; And described routing device is after receiving described beacon message, according to the decipherment algorithm corresponding with described cryptographic algorithm, decipher the vendorspecific field in described beacon message, to obtain described sequence number.
Wherein, described cryptographic algorithm can be RC4 cryptographic algorithm, RC4 cryptographic algorithm is the variable stream cipher algorithm bunch of key length, and in the present embodiment, described RC4 cryptographic algorithm comprises initialization algorithm (KSA) and pseudorandom password generating algorithm (PRGA).
The application of described RC4 cryptographic algorithm is specially: suppose that the length of S-box is 256, key length is Len.
The initialization section of algorithm:
Wherein, parameter 1 is the char type array of 256 length, is defined as: unsignedcharsBox [256];
Parameter 2 is keys, and its content can at will define: charkey [256];
Parameter 3 is the length of key, Len=strlen (key);
Voidrc4_init (unsignedchar*s, unsignedchar*key, unsignedlongLen) // initialization function
{
inti＝0,j＝0；
chark[256]＝{0}；
unsignedchartmp＝0；
for(i＝0；i<256；i++)
{
s[i]＝i；
k[i]＝key[i％Len]；
}
for(i＝0；i<256；i++)
{
j＝(j+s[i]+k[i])％256；
tmp＝s[i]；
S [i]=s [j]; // exchange s [i] and s [j]
s[j]＝tmp；
}
}
In initialized process, the major function of key is confused by sBox, and i guarantees that each element of sBox is processed, and j ensures that confusing of sBox is random.And different sBox can obtain different sub-key sequences after the process through pseudorandom password generating algorithm, sBox and plaintext are carried out xor computing, and obtain ciphertext, decrypting process is also identical.
The encryption section of algorithm:
Wherein, parameter 1 is in the rc4_init function of top, the sBox be disturbed;
Parameter 2 is the data data needing encryption;
Parameter 3 is the length of data.
Voidrc4_crypt (unsignedchar*s, unsignedchar*Data, unsignedlongLen) // encryption and decryption
{
inti＝0,j＝0,t＝0；
unsignedlongk＝0；
unsignedchartmp；
for(k＝0；k<Len；k++)
{
i＝(i+1)％256；
j＝(j+s[i])％256；
tmp＝s[i]；
S [i]=s [j]; // exchange s [x] and s [y]
s[j]＝tmp；
t＝(s[i]+s[j])％256；
Data[k]^＝s[t]；
}
}
The security hidden trouble that safety authentication method can well prevent Wireless Communication Equipment from bringing without the direct access of radio network of certification.
Refer to Fig. 2, be shown as Radio Network System of the present invention module diagram in one embodiment.Described Radio Network System 1 comprises Wireless Communication Equipment 11 and routing device 12.
Wherein, the described beacon message after encryption in order to pass through the sequence number in predetermined encryption algorithm for encryption beacon message to be sent, and is sent to a routing device by described Wireless Communication Equipment 11.
Described routing device 12 receives described beacon message, and according to the decipherment algorithm corresponding with described cryptographic algorithm, is decrypted described beacon message, to obtain described sequence number; And according to the analysis to described sequence number, to judge that whether described Wireless Communication Equipment is legal.
In a specific embodiment of the present invention, described routing device 12 sets up the database storing multiple secure serial number in advance, described routing device 12 judges whether the described sequence number in described beacon message is present in described database, if, then judge that described Wireless Communication Equipment 11 is legal, allow the wireless network that its access is relevant to described routing device 12; If not, then judge that described Wireless Communication Equipment 11 is illegal, forbid the wireless network that its access is relevant to described routing device 12.
In a specific embodiment of the present invention, after the sequence number of described Wireless Communication Equipment 11 in the described beacon message to be sent of encryption, added in vendorspecific field; And described routing device 12 is after receiving described beacon message, according to the decipherment algorithm corresponding with described cryptographic algorithm, decipher the vendorspecific field in described beacon message, to obtain described sequence number.
Wherein, described cryptographic algorithm can be RC4 cryptographic algorithm, RC4 cryptographic algorithm is the variable stream cipher algorithm bunch of key length, and in the present embodiment, described RC4 cryptographic algorithm comprises initialization algorithm (KSA) and pseudorandom password generating algorithm (PRGA).
The application of described RC4 cryptographic algorithm is specially: suppose that the length of S-box is 256, key length is Len.
The initialization section of algorithm:
Wherein, parameter 1 is the char type array of 256 length, is defined as: unsignedcharsBox [256];
Parameter 2 is keys, and its content can at will define: charkey [256];
Parameter 3 is the length of key, Len=strlen (key);
Voidrc4_init (unsignedchar*s, unsignedchar*key, unsignedlongLen) // initialization function
{
inti＝0,j＝0；
chark[256]＝{0}；
unsignedchartmp＝0；
for(i＝0；i<256；i++)
{
s[i]＝i；
k[i]＝key[i％Len]；
}
for(i＝0；i<256；i++)
{
j＝(j+s[i]+k[i])％256；
tmp＝s[i]；
S [i]=s [j]; // exchange s [i] and s [j]
s[j]＝tmp；
}
}
In initialized process, the major function of key is confused by sBox, and i guarantees that each element of sBox is processed, and j ensures that confusing of sBox is random.And different sBox can obtain different sub-key sequences after the process through pseudorandom password generating algorithm, sBox and plaintext are carried out xor computing, and obtain ciphertext, decrypting process is also identical.
The encryption section of algorithm:
Wherein, parameter 1 is in the rc4_init function of top, the sBox be disturbed;
Parameter 2 is the data data needing encryption;
Parameter 3 is the length of data.
Voidrc4_crypt (unsignedchar*s, unsignedchar*Data, unsignedlongLen) // encryption and decryption
{
inti＝0,j＝0,t＝0；
unsignedlongk＝0；
unsignedchartmp；
for(k＝0；k<Len；k++)
{
i＝(i+1)％256；
j＝(j+s[i])％256；
tmp＝s[i]；
S [i]=s [j]; // exchange s [x] and s [y]
s[j]＝tmp；
t＝(s[i]+s[j])％256；
Data[k]^＝s[t]；
}
}
Further, refer to Fig. 3, be shown as the application schematic diagram of Wireless Communication Equipment described in the present embodiment, be specially, send beacon message, judge whether that opening AP detects (the Wireless Communication Equipment safety certification preset detects), if, then by No. SN, RC4 algorithm for encryption, and add VendorSpecific field to; If not, then directly beacon message is sent.
Accordingly, refer to Fig. 4, be shown as the application schematic diagram of routing device described in the present embodiment, be specially, receive described beacon message, judge whether that opening AP detects, if yes, then decipher VendorSpecific field, obtain corresponding No. SN, and judge whether according to described No. SN legal, if legal, then terminate authentication operation, make Wireless Communication Equipment access of radio network, if illegal, then add the record of the illegal wireless network equipment.
The security hidden trouble that this Radio Network System can well prevent Wireless Communication Equipment from bringing without the direct access of radio network of certification.
In sum, the safety certifying method of Radio Network System of the present invention and application thereof, makes a Wireless Communication Equipment by the sequence number in predetermined encryption algorithm for encryption beacon message to be sent; Make described Wireless Communication Equipment that the described beacon message after encryption is sent to a routing device; Described routing device, according to the decipherment algorithm corresponding with described cryptographic algorithm, is decrypted described beacon message, to obtain described sequence number; Described routing device according to the analysis to described sequence number, to judge whether the wireless network allowing the access of described Wireless Communication Equipment relevant.Certification can be carried out to the equipment of access of radio network, ensure the fail safe of network.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. a safety certifying method, is characterized in that, comprises the steps:
Make a Wireless Communication Equipment by the sequence number in predetermined encryption algorithm for encryption beacon message to be sent;
Make described Wireless Communication Equipment that the described beacon message after encryption is sent to a routing device;
Described routing device, according to the decipherment algorithm corresponding with described cryptographic algorithm, is decrypted described beacon message, to obtain described sequence number;
Described routing device, according to the analysis to described sequence number, accesses relevant wireless network to judge whether to allow described Wireless Communication Equipment.
2. safety certifying method according to claim 1, it is characterized in that: described routing device sets up the database storing multiple secure serial number in advance, described routing device judges whether the described sequence number in described beacon message is present in described database, if, then judge that described Wireless Communication Equipment is legal, allow the wireless network that its access is relevant to described routing device; If not, then judge that described Wireless Communication Equipment is illegal, forbid the wireless network that its access is relevant to described routing device.
3. safety certifying method according to claim 1, is characterized in that: described cryptographic algorithm is RC4 cryptographic algorithm.
4. safety certifying method according to claim 3, is characterized in that: described RC4 cryptographic algorithm comprises initialization algorithm and pseudorandom password generating algorithm.
5. safety certifying method according to claim 1, is characterized in that: after the sequence number of described Wireless Communication Equipment in the described beacon message to be sent of encryption, added in vendorspecific field; And described routing device is after receiving described beacon message, according to the decipherment algorithm corresponding with described cryptographic algorithm, decipher the vendorspecific field in described beacon message, to obtain described sequence number.
6. a Radio Network System, is characterized in that, comprises Wireless Communication Equipment and routing device;
Described beacon message after encryption in order to pass through the sequence number in predetermined encryption algorithm for encryption beacon message to be sent, and is sent to a routing device by described Wireless Communication Equipment;
Described routing device receives described beacon message, and according to the decipherment algorithm corresponding with described cryptographic algorithm, is decrypted described beacon message, to obtain described sequence number; And according to the analysis to described sequence number, to judge that whether described Wireless Communication Equipment is legal.
7. Radio Network System according to claim 6, it is characterized in that: described routing device sets up the database storing multiple secure serial number in advance, described routing device judges whether the described sequence number in described beacon message is present in described database, if, then judge that described Wireless Communication Equipment is legal, allow the wireless network that its access is relevant to described routing device; If not, then judge that described Wireless Communication Equipment is illegal, forbid the wireless network that its access is relevant to described routing device.
8. Radio Network System according to claim 6, is characterized in that: described cryptographic algorithm is RC4 cryptographic algorithm.
9. Radio Network System according to claim 8, is characterized in that: described RC4 cryptographic algorithm comprises initialization algorithm and pseudorandom password generating algorithm.
10. Radio Network System according to claim 6, is characterized in that: after the sequence number of described Wireless Communication Equipment in the described beacon message to be sent of encryption, added in vendorspecific field; And described routing device is after receiving described beacon message, according to the decipherment algorithm corresponding with described cryptographic algorithm, decipher the vendorspecific field in described beacon message, to obtain described sequence number.
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| CN201510792038.1A CN105282737A (en) | 2015-11-17 | 2015-11-17 | Wireless network system and safety certification method thereof |
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| CN201510792038.1A CN105282737A (en) | 2015-11-17 | 2015-11-17 | Wireless network system and safety certification method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111462866A (en) * | 2020-03-27 | 2020-07-28 | 深圳开立生物医疗科技股份有限公司 | Medical diagnosis system, image processing apparatus, and encryption protection method and system for the same |
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|---|---|---|---|---|
| CN101346001A (en) * | 2008-08-29 | 2009-01-14 | 华为技术有限公司 | Clock synchronization process, equipment and system |
| CN102420689A (en) * | 2010-10-21 | 2012-04-18 | 微软公司 | Provisioning techniques |
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2015
- 2015-11-17 CN CN201510792038.1A patent/CN105282737A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101346001A (en) * | 2008-08-29 | 2009-01-14 | 华为技术有限公司 | Clock synchronization process, equipment and system |
| CN102420689A (en) * | 2010-10-21 | 2012-04-18 | 微软公司 | Provisioning techniques |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111462866A (en) * | 2020-03-27 | 2020-07-28 | 深圳开立生物医疗科技股份有限公司 | Medical diagnosis system, image processing apparatus, and encryption protection method and system for the same |
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