CN112235794A - WAPI module with encryption chip and transmission method - Google Patents
WAPI module with encryption chip and transmission method Download PDFInfo
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- CN112235794A CN112235794A CN202011282298.1A CN202011282298A CN112235794A CN 112235794 A CN112235794 A CN 112235794A CN 202011282298 A CN202011282298 A CN 202011282298A CN 112235794 A CN112235794 A CN 112235794A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 27
- 238000004891 communication Methods 0.000 claims abstract description 34
- 238000012795 verification Methods 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims description 22
- 239000007924 injection Substances 0.000 claims description 22
- 238000000060 site-specific infrared dichroism spectroscopy Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 102100021834 3-hydroxyacyl-CoA dehydrogenase Human genes 0.000 claims description 5
- 101000896020 Homo sapiens 3-hydroxyacyl-CoA dehydrogenase Proteins 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 22
- 238000013461 design Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
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- 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
- H04L63/0485—Networking architectures for enhanced packet encryption processing, e.g. offloading of IPsec packet processing or efficient security association look-up
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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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
Abstract
A WAPI module with an encryption chip comprises a main control chip, the main control chip is connected with the encryption chip and a radio frequency chip, and the main control chip is used for managing and configuring the connection of the whole WAPI module, a WAPI protocol stack and data communication under an IESEC encryption condition; the encryption chip stores the encryption certificate, certificate verification and key agreement and decrypts the private key data required by WAPI authentication and IPSEC authentication; the radio frequency chip is responsible for wireless data receiving and transmitting and data transmission; the main control chip of the WAPI module is provided with the following interfaces: one or all of the Ethernet interface, the USB interface or the RS232/485 interface is used for connecting a terminal; a WAPI protocol stack is installed on the WAP module and used for connecting a wireless network, WAPI authentication and IPSEC authentication, and data forwarding capability is provided for data communication of equipment. The security chip and the IPSEC are utilized to improve the security of the WAPI technology, reduce the threshold of using the WAPI technology and increase the usability of a client.
Description
Technical Field
The invention relates to a WAPI module and application, in particular to a WAPI module with an encryption chip, and design, use and application thereof.
Background
At present, Wireless Local Area Network (WLAN) based technology is widely used, the WAPI is a mandatory standard for wireless local area networks in china, and is also greatly developed in China, and a large number of terminals such as smart phones and tablet computers supporting the WAPI appear. The WAPI is the China Wireless LAN Standard. The special wireless module for the WAPI mobile phone in the prior art, such as AW-GH32, can simultaneously support WAPI/WAPI + Wi-Fi + Bluetooth, that is, the WAPI terminal can be compatible with WIFI at the same time, and can be matched with mobile phones with different specifications, such as CDMA, GSM, 3G and the like.
However, in some private communication fields, the development of the WAPI technology is slow, and the main reason is that there is a certain technical threshold for using the WAPI communication, so that some manufacturers cannot use the WAPI technology conveniently, and the operation of various certificates is complicated when the WAPI terminal is used, which affects the use experience of users, and some scenarios need higher confidentiality, and these factors limit the use and development of the WAPI technology in the private communication field.
In the prior art, CN102035797B is also referred to as a system and method for media transmission based on the WAPI, the method includes that mutual authentication is completed after a WAPI terminal, an access point and a server are started, the server encrypts service data requested by the WAPI terminal by using a privacy protocol specified by the WAPI protocol, and then sends the encrypted data to the WAPI terminal through the access point. By adopting the invention, after the WAPI terminal completes the authentication verification with the access point and the server through the digital certificate, the access point can transparently transmit the data information received from the server to the WAPI terminal, thereby improving the transmission efficiency, reducing the use cost of a user and facilitating the WAPI terminal to watch related programs under the condition of ensuring the secret transmission characteristic.
The CN201210217744.X method and system for acquiring the WAPI certificate provide a method for acquiring the WAPI certificate, and the method comprises the following steps: the mobile terminal accesses an open access point and sends information carrying an IMSI authentication request to the open access point; the open access point sends the information carrying the IMSI verification request to an authentication server, and initiates the IMSI verification request to a network server through the authentication server; and the authentication server generates a WAPI certificate according to the information that the IMSI is valid and verifies by the network server, and sends the WAPI certificate to the mobile terminal. The invention also correspondingly provides a system for acquiring the WAPI certificate. Therefore, the invention can enable the terminal user to conveniently obtain the WAPI certificate and improve the user experience.
CN105554742B A WAPI module circuit and encryption method for realizing RFID encrypted communication, providing a WAPI module circuit for realizing RFID encrypted communication, including an application processor, a power module connected with the application processor, a wireless module, a mini UICC card and a data storage module, wherein the application processor is connected with the mini UICC card through an SPI interface, the UICC processor is connected with the wireless module through a USB interface, and the wireless module is also connected with an antenna; the application processor comprises two GPIO interfaces which are respectively connected with an SPI state signal interface and an SPI reset signal interface of the mini UICC card; the application processor comprises two groups of B communication interfaces.
The existing WiFi module is also called as a serial port WiFi module, belongs to an Internet of things transmission layer, and has the functions of converting a serial port or TTL level into an embedded module which accords with a Wi-Fi wireless network communication standard, accords with an IEEE802.11 protocol stack network standard, is internally provided with a TCP/IP protocol stack, and can realize arbitrary transparent conversion among 3 interfaces of a user serial port, an Ethernet and a wireless network (WIFI), so that the traditional serial port equipment can be better added into the wireless network and pass through the serial port WiFi module, and the traditional serial port equipment can transmit own data through the Internet network without changing any configuration. The existing module supports various wireless network encryption modes, can fully guarantee the safe transmission of user data, and comprises: WEP64/WEP128/TKIP/CCMP (AES) WEP/WPA-PSK/WPA 2-PSK. The existing WAPI or WIFI has no secondary encryption function addition completed by an encryption chip.
Disclosure of Invention
The invention aims to provide a WAPI module design and transmission method with an encryption chip function based on a WAPI wireless local area network authentication and security infrastructure security protocol module, which can simplify the threshold of a terminal device using a WAPI communication technology, simplify the operation of connecting a WAPI wireless network by a user and enhance the security of WAPI communication. Especially, the encryption chip is combined with the WAPI wireless communication technology and the IPSEC technology.
The technical scheme of the invention is as follows: a WAPI module with an encryption chip is characterized by comprising a main control chip, an encryption chip and a radio frequency chip, wherein the main control chip is used for connecting management and configuration of the whole WAPI module, a WAPI protocol stack and data communication under an IESEC encryption condition; the encryption chip stores the encryption certificate, certificate verification and key agreement and decrypts the private key data required by WAPI authentication and IPSEC authentication; the radio frequency chip is responsible for wireless data receiving and transmitting and data (encryption) transmission;
secondly, the main control chip of the WAPI module has the following interfaces: one or all of the Ethernet interface, the USB interface or the RS232/485 interface is used for connecting a terminal; a key injection port is arranged for key injection and equipment parameter configuration; the radio frequency interface of the radio frequency chip is used for connecting an antenna;
a WAPI protocol stack is installed on the WAP module and used for connecting a wireless network, WAPI authentication and IPSEC authentication, and finally, data forwarding capability is provided for data communication of equipment.
Further, the encryption chip is used for storing certificates and certificate private keys, the contents comprise WAPI ASUE certificates and keys, WAPI AS certificates, RSA client certificates and keys for IPSEC encryption and server certificates, and the certificates are imported through a key injection port of the module.
Furthermore, in the WAPI authentication and IPSEC tunnel establishment process, the certificate verification and private key encryption and decryption operations are all completed in the encryption chip, and after the authentication and tunnel establishment, the communication key is transmitted to the main control module and the radio frequency module for the encryption and decryption of normal communication data.
Furthermore, the key injection port can be used for certificate import and private key injection, and can also be used for rapidly updating the configuration of the main control chip, such as the information of the SSID (the SSID is the Wifi wireless network name, and the SSID broadcast belongs to the professional term in the wireless router setting) of the connected hotspot, so that the one-click key injection configuration function is realized.
Preferably, the module can also realize the functions of certificate import, private key injection and equipment configuration in a network downloading mode.
Compared with the existing WAPI which is only a peripheral of a cpu, the existing WAPI chip only provides a driver of the WAPI chip, and the driver is a two-layer protocol (MAC layer) in a network layer and does not comprise a three-layer protocol (tcp/ip layer). The scheme of the method is built in the main control chip, and the terminal equipment using the scheme of the invention does not need to integrate a WAPI protocol stack, so that the threshold of the terminal equipment using the WAPI technology is reduced; the operational capability of the main control chip is combined with the encryption chip, so that certificate encryption is improved for WAPI data, and IPSEC is used for carrying out data secondary encryption, thereby improving the security of WAPI data communication; the module uses an external key injection port to inject keys and configures one-key operation, so that the usability of the equipment is improved. The technical scheme of the invention uses some existing technologies for expansion, and has good universality and expansibility.
Has the advantages that: the invention provides a design and transmission method of a WAPI module with an encryption chip, which can simplify the threshold of a terminal device using a WAPI communication technology, simplify the operation of connecting a WAPI wireless network by a user and enhance the security of WAPI communication. The invention relates to a method for realizing encrypted transmission, which can utilize an encryption chip to combine with WAPI wireless communication technology and IPSEC technology (Internet security communication protocol, which protects the network transmission protocol family of IP protocol and a set of some interrelated protocols by encrypting and authenticating IP protocol packets) to realize encrypted wireless transmission of data. The method reduces the difficulty of the terminal in using the WAPI technology, enhances the security of WAPI communication, and simplifies the steps of connecting the user with the WAPI network. The invention further improves the security of the WAPI technology by utilizing the security chip and the IPSEC technology, simultaneously, the built-in WAPI protocol stack and the software design of the key injection port configuration module reduce the threshold of the equipment using the WAPI technology, increase the usability of the customer and have good use prospect.
Drawings
Fig. 1 is a schematic diagram of a frame of a module of the present invention.
FIG. 2 is a software workflow diagram of the modules of the present invention.
Fig. 3 is a flowchart of the WAPI authentication process of the module using the cryptographic chip described in the present invention.
Detailed Description
The invention is further described below with reference to the drawings and the examples.
The invention discloses a WAPI module design and transmission method with an encryption chip, which comprises the following steps:
the method for realizing encrypted transmission by the WAPI module with the encryption chip can utilize the encryption chip to combine the WAPI wireless communication technology and the IPSEC technology. The invention relates to a WAPI module design which is mainly completed by a main control chip, an encryption chip and a radio frequency chip.A WAPI protocol stack is arranged in the main control chip, and a terminal device does not need to integrate the WAPI protocol stack (the sum of all layers of protocols reflects the process of file transmission in a network vividly, namely, the WAPI protocol stack is from an upper layer protocol to a lower layer protocol and from the lower layer protocol to the upper layer protocol), thereby reducing the threshold of the terminal device using the WAPI technology; the computing power of the main control chip is combined with the encryption chip, so that certificate encryption is improved for WAPI data, and IPSEC is used for carrying out data secondary encryption, thereby improving the security of WAPI data communication; the module uses an external key injection port to inject keys and configures one-key operation, so that the usability of the equipment is improved. The invention expands some existing technologies and has good universality and expansibility.
First, the method and system of the present invention are implemented on an embedded terminal system. The frame schematic diagram of the module is shown in fig. 1, and a main control chip of the module is provided with a USB-Host interface or an SDIO interface for connecting a radio frequency chip; an SPI or I2C interface is used for connecting the encryption chip; the system is provided with an Ethernet interface or a USB-Slave interface for connecting a computer or terminal equipment which needs to use a WAPI network, and a serial port for key injection and configuration. The WAPI protocol stack, the IPSEC protocol stack and the certificate management software are arranged in the module, when WAPI authentication and IPSEC authentication are carried out, the certificate management software is used for communicating with the encryption chip, the authentication operation is finally completed, and a safe encrypted data channel is finally provided for terminal equipment by matching with connection management and route management of the module system.
Next, the software flow chart of the present invention refers to fig. 2: the module device automatically searches a network after starting, after searching an access point of a required SSID, wireless association operation is carried out, authentication is carried out by using a WAPI certificate and a private key stored by an encryption chip, an IP address is obtained after the authentication is successful, then IPSEC certificate and the private key stored by the encryption chip are used for carrying out IPSEC authentication according to the configuration of IPSEC, an IPSEC tunnel is created after the authentication is successful, then a data forwarding function of the module is opened, and data communication is started.
Thirdly, the WAPI authentication flow using the encryption chip in the present invention refers to fig. 3: after the module is associated with a wireless network, an authentication activation request of equipment is received, the module software acquires a certificate from an encryption chip and generates data challenge content, then the certificate is sent to an AP, after the AP passes verification, the module receives an access authentication response of the AP, the module software sends a certificate signature of the response content to the encryption chip for verification, if the certificate signature does not pass verification, the module software reenters an associated network flow, if the certificate signature passes verification, the encryption chip generates ECHD seed data through a private key and sends the ECHD seed data to the AP for a key negotiation flow, and after the negotiation is completed, the module software acquires a communication key from the encryption chip for normal data encryption communication.
The following is further illustrated by an example:
the hardware comprises:
the system comprises an embedded development board (in the embodiment, an ARM9 chip is used, the chip is provided with a USB-Host used for connecting a radio frequency module, a USB-Slave interface used for connecting a computer), a radio frequency module, an encryption chip module, a testing computer, a set of AP and AS equipment supporting a WAPI protocol, a server, a network cable and a plurality of serial port lines. Typical cryptographic chip model: najie RJGT102 or Dingxin CSGDX-SEC-201701. The protocol version number of the WAPI is GB 15629.1104-2006, and the WAPI certificate and private key version numbers are both 1; the cryptographic chip generates the ECHD seed is a software algorithm program running on the cryptographic chip.
Second, detailed procedure
The embedded equipment is connected with various chips as shown in the attached figure 1, and the software of the invention is compiled and installed in a crossed way, the network port of the equipment is connected with the network port of the testing computer, and the key injection port of the equipment is connected with the serial port of the testing computer; the AP is configured in a WAPI certificate mode, the AS issues a related client certificate and installs the client certificate to the AP, and the certificate of the equipment is copied to the computer; the server installs the IPSEC service and releases the related certificate to the testing computer; the server installs the WEB service for network testing.
Thirdly, the specific operation process is as follows:
1. and starting the equipment, after the equipment is started, injecting an installation certificate into the equipment through the key injection port by the computer through the configuration software, updating relevant equipment configuration information, and restarting the equipment.
2. Waiting for the equipment to start, finishing WAPI authentication and IPSEC authentication by the equipment, and creating a secure encrypted data channel.
3. The ethernet port of the computer is configured to dynamically obtain an address and then an IP address from the device.
4. And opening browser software of the computer to access the WEB address of the server, wherein WEB content on the server can be seen at the moment.
The above is only a preferred embodiment of the present invention, and a person skilled in the art can make several modifications and embellishments without departing from the principle of the present invention, and these modifications and embellishments should also be regarded as the protection scope of the present invention.
Claims (7)
1. A WAPI module with an encryption chip is characterized by comprising a main control chip, an encryption chip and a radio frequency chip, wherein the main control chip is used for connecting management and configuration of the whole WAPI module, a WAPI protocol stack and data communication under an IESEC encryption condition; the encryption chip stores the encryption certificate, certificate verification and key agreement and decrypts the private key data required by WAPI authentication and IPSEC authentication; the radio frequency chip is responsible for wireless data receiving and transmitting and data (encryption) transmission;
secondly, the main control chip of the WAPI module has the following interfaces: one or all of the Ethernet interface, the USB interface or the RS232/485 interface is used for connecting a terminal; a key injection port is arranged for key injection and equipment parameter configuration; the radio frequency interface of the radio frequency chip is used for connecting an antenna; and a WAPI protocol stack is installed on the WAP module and used for connecting a wireless network, WAPI authentication and IPSEC authentication, and finally, data forwarding capability is provided for equipment data communication.
2. The WAPI module with the encryption chip of claim 1, wherein the encryption chip is used for storing a certificate and a certificate private key, the contents comprise a WAPI ASUE certificate and a secret key, a WAPI AS certificate, an RSA client certificate and a secret key for IPSEC encryption, and a server certificate, and the certificate is imported through a key injection port of the module.
3. The WAPI module with the encryption chip as claimed in claim 1, wherein the key injection port is used for certificate import and private key injection, and can also be used for rapidly updating configuration of the main control chip, such as information of SSID (SSID is Wifi wireless network name, SSID broadcast belongs to professional term in wireless router setting) of a connected hotspot, and the like, so as to realize one-click key injection configuration function; or the WAPI module can also realize the functions of certificate import, private key injection and equipment configuration in a network downloading mode.
4. The transmission method of the WAPI module with the encryption chip as claimed in one of claims 1 to 3, wherein the certification verification and the private key encryption and decryption operations involved in the WAPI authentication and IPSEC tunnel establishment process of the WAPI module are both completed in the encryption chip, and after the authentication and the tunnel establishment, the communication key is transmitted to the main control module and the radio frequency module for the encryption and decryption of normal communication data; the WAPI module realizes the functions of certificate import, private key injection and equipment configuration in a network downloading mode.
5. The transmission method of the WAPI module with the encryption chip as claimed in claim 4, wherein the computer device with the WAPI module is started, after the completion of the start, the computer injects the installation certificate to the device through the key injection port by the configuration software, updates the related device configuration information, and restarts the computer device.
6. The transmission method of the WAPI module with the encryption chip as claimed in claim 4, wherein a security encryption data channel is created after the computer equipment is started and the equipment completes WAPI authentication and IPSEC authentication;
the Ethernet port of the computer equipment is configured to dynamically acquire an address, and then an IP address is acquired from the computer equipment;
the WPAI module device automatically searches a network after being started, performs wireless association operation after searching an access point of a required SSID, performs authentication by using a WAPI certificate and a private key stored in an encryption chip, acquires an IP address after the authentication is successful, performs IPSEC authentication by using an IPSEC certificate and a private key stored in the encryption chip according to the configuration of IPSEC, creates an IPSEC tunnel after the authentication is successful, and then opens the data forwarding function of the module to start data communication.
7. The transmission method of the WAPI module with the encryption chip as claimed in claim 4, wherein the WAPI authentication process using the encryption chip comprises: after the WPAI module is associated with a wireless network, an authentication activation request of equipment is received, the module software acquires a certificate from an encryption chip and generates data challenge content, the certificate is sent to an AP, after the AP passes verification, the module receives an access authentication response of the AP, the module software sends a certificate signature of the response content to the encryption chip for verification, if the certificate signature does not pass verification, the module software reenters an associated network flow, if the certificate signature passes verification, the encryption chip generates ECHD seed data through a private key and sends the ECHD seed data to the AP for a key negotiation flow, and after the negotiation is completed, the module software acquires a communication key from the encryption chip for normal data encryption communication.
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| CN202011282298.1A CN112235794A (en) | 2020-11-17 | 2020-11-17 | WAPI module with encryption chip and transmission method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113490208A (en) * | 2021-06-28 | 2021-10-08 | 锐迪科创微电子（北京）有限公司 | Connection method, configuration method, device, medium and equipment of wireless access point |
| CN115913565A (en) * | 2022-10-19 | 2023-04-04 | 南方电网科学研究院有限责任公司 | Method for improving communication transmission security of encryption chip and encryption chip |
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| CN105141415A (en) * | 2015-09-15 | 2015-12-09 | 北京三未信安科技发展有限公司 | Remote management method and system of password equipment |
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| CN115913565A (en) * | 2022-10-19 | 2023-04-04 | 南方电网科学研究院有限责任公司 | Method for improving communication transmission security of encryption chip and encryption chip |
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