Abstract: A method and a system for entity authentication in a resource-limited network are provided by the present invention. Said method comprises the following steps: 1) entity A sends an authentication request message to entity B; 2) after receiving the authentication request message, entity B sends an authentication response message to entity A; and 3) entity A determines the validity of entity B according to the received authentication response message. The authentication between entities in a resource-limited network can be implemented by the application of the present invention.

Abstract: A method and a system for network access control are provided, which are based on cipher code mechanism. After a visitor has raised an access request, an access controller in the destination network processes the access request and initiates an authentication request on the visitor identity to an authentication server through the visitor. The access controller in the destination network accomplishes the authentication on the visitor identity according to the public authentication result of the authentication server transferred by the visitor, and performs according to the authorization policy the authorization management on the successfully authenticated visitor. The present invention solves the problem of incapableness of performing the access control when the access controller can not directly use the authentication service provided by the authentication server. The present invention can sufficiently satisfy the real application requirements of access control on visitor.

Abstract: A method for implementing a convergent Wireless Local Area Network (WLAN) Authentication and Privacy Infrastructure (WAPI) network architecture in a local Medium Access Control (MAC) mode is provided and includes the following steps: the MAC function and WAPI function of Access Point (AP) are divided between Wireless Terminal Point (WTP) and Access Controller (AC) to construct a local MAC mode; the convergence of WAPI protocol and the convergent WLAN network architecture is implemented in the local MAC mode; the process of association and connection between Station (STA), WTP and AC is performed; the process of notification of the beginning of the execution of the WLAN Authentication Infrastructure (WAI) protocol between AC and WTP is performed; the process of the execution of the WAI protocol between STA and AC is performed; the process of notification of the end of the execution of the WAI protocol between AC and WTP is performed; the process of encrypted communication between WTP and STA is performed by us

Abstract: A method for identity authentication comprises: 1) a first authenticator transmitting to a second authenticator a first identity authentication message; 2) the second authenticator transmitting to the first authenticator a second identity authentication message; 3) the first authenticator transmitting to an authentication server a third identity authentication message; 4) the authentication server verifying the validity of a secure domain for the second authenticator on the basis of the third identity authentication message; 5) the authentication server transmitting to the first authenticator a fourth identity authentication message; and, 6) the first authenticator authenticating when the fourth identity authentication message is received. The identity authentication system mainly comprises: the first authenticator, the second authenticator, the secure domain for the second authenticator, and the authentication server.

Abstract: There are a terminal device capable of link layer encryption and decryption and a data process method thereof, and the terminal device includes a link layer processing module including a control module, a data frame encryption module, a data frame decryption module, a key management module, an algorithm module, a transmission port and a reception port; and the control module is connected with the transmission port through the data frame encryption module, the reception port is connected with the control module through the data frame decryption module, the control module is connected with the key management module, the data frame encryption module is connected with the data frame decryption module through the key management module, and the data frame encryption module is connected with the data frame decryption module through the algorithm module.

Abstract: A wireless personal area network access method based on the primitive, includes: a coordinator broadcasts a beacon frame to the device which requests connecting to the wireless personal area network (WPAN), the beacon frame includes the authentication request information for the device and the authentication and a key management tool supported by the coordinator; the device authenticates the authentication request information, when the coordinator has an authentication request to the device, the coordinator and the device execute the authentication based on the primitive and obtains the conversation key.

Abstract: The present invention discloses a method and system for secret communication between nodes in a wired Local Area Network (LAN). The method of secret communication between nodes in the wired LAN includes the following steps: 1) a sharing key is established; 2) the route probe is exchanged; 3) the data communication is classified; 4) the secret communication is processed among the nodes. According to the different communication situations among the nodes, the method of secret communication between nodes provided in the present invention can process the classification and select an appropriate secret communication strategy; compared with per-hop encryption, the calculation load of the exchange equipment is reduced, and the transmission delay of data packets is shortened; compared with the method that inter-station keys are established in pairs of nodes in order to protect the communication secret, the key number is reduced, and the key management is simplified.

Abstract: A trusted network connection implementing method based on Tri-element Peer Authentication is provided in present invention, the method includes: step 1, configuring and initializing; step 2, requesting for network connection, wherein an access requester sends a network connection request to and access controller, and the access controller receives the network connection request; step 3, authenticating user ID; and step 4, authenticating a platform. The invention enhances the safety of the trusted network connection implementing method, widens the application range of the trusted network connection implementing method based on the Tri-element Peer Authentication, satisfies requirements of different network apparatuses and improves the efficiency of the trusted network connection implementing method based on the Tri-element Peer Authentication.

Abstract: A key management and node authentication method for a sensor network is disclosed. The method comprises the following steps of: 1) keys pre-distribution: before deploying the network, communication keys for establishing security connection between nodes are pre-distributed to all of nodes by a deployment server. 2) Keys establishment: after deploying the network, a pair key for the security connection is established between nodes, which includes the following steps of: 2.1) establishment of shared keys: the pair key is established between neighbor nodes in which the shared keys are existed; 2.2) path keys establishment: the pair key is established between the nodes in which there is no shared keys but there is a multi-hop security connection. 3) Node identity (ID) authentication: before formally communicating between nodes, the identity is authenticated so as to determine the legality and the validity of the identity of the other.

Abstract: A method for realizing a convergent Wireless Local Area Networks (WLAN) Authentication and Privacy Infrastructure (WAPI) network architecture with a split Medium Access Control (MAC) mode involves the steps: a split MAC mode for realizing WLAN Privacy Infrastructure (WPI) by a wireless terminal point is constructed through separating the MAC function and the WAPI function of the wireless access point apart to the wireless terminal point and an access controller; integration of a WAPI and a convergent WLAN network system architecture is realized under the split MAC mode that the wireless terminal point realizes WPI; the association connection process is performed among a station point, a wireless terminal point and an access controller; the process for announcing the start of performing the WLAN Authentication Infrastructure (WAI) protocol between the access controller and the wireless terminal point is performed; the process for performing the WAI protocol between the station point and the access controller i

Abstract: The present invention provides a secret communication method, apparatus and system. The method comprises: 1) determining a neighboring encryption switching equipment shared by a first user terminal and a second user terminal, wherein the first user terminal and the second user terminal are neighboring user terminals (1); 2) establishing, by the neighboring encryption switching equipment, an inter-station key for communication between the first user terminal and the second terminal (2); 3) performing data secret communication between the first user terminal and the second terminal by using the inter-station key (3). With the present invention, the neighboring user terminals needing to perform the secret communication can establish the inter-station key without performing identity authentication with each other, and can perform the secret communication with the inter-station key, and thereby the network load is reduced.

Abstract: A method for establishing a secure network architecture, a method and system for secure communication are provided. The method for establishing a secure network architecture includes: 1) constructing the network architecture where the identities of nodes are legal, including: neighboring node discovery; performing identities certification and shared key negotiation between a node and the neighbor node; 2) constructing a secure switching device architecture, including: establishing a shared key between every two of the switch devices.

Abstract: A method and system for establishing a secure connection between stations are disclosed. The method includes that: 1) a switch device receives an inter-station key request packet sent by a first user terminal; 2) the switch device generates an inter-station key, constructs an inter-station key announcement packet and sends it to a second user terminal; 3) the switch device receives an inter-station key announcement response packet sent by the second user terminal; 4) the switch device constructs an inter-station key announcement response packet and sends it to the first user terminal; 5) the switch device receives an inter-station key announcement response packet sent by the first user terminal. The switch device establishes an inter-station key for the two stations which are connected to the switch device directly, by which the embodiments of the present invention ensure the confidentiality and integrality of user data between the stations.

Abstract: The invention discloses a platform authentication method suitable for trusted network connect (TNC) architecture based on tri-element peer authentication (TePA). The method relates to a platform authentication protocol of tri-element peer authentication, and the protocol improves network security as compared with prior platform authentication protocols; in the platform authentication protocol of the TNC architecture based on TePA, a policy manager plays a role as a trusted third party, which is convenient for concentrated management, thus enhancing manageability; the invention relates to the platform authentication protocol of the TNC architecture based on TePA, has different implementation methods and is beneficial for different dispositions and realizations.

Abstract: The embodiment of the present invention relates to a method and a system for switching station in centralized wireless local area network (WLAN) when the WLAN privacy infrastructure (WPI) is performed by an access controller (AC). The method includes: step 1: the station re-associates with the AC through the destination wireless terminal point (WTP); step 2: the AC informs the associated WTP to delete the station; step 3: the AC informs the destination WTP to join the station. The invention implements the operation of joining station and deleting station between the AC and the WTP based on the control and provisioning of wireless access points protocol (CAPWAP) control message during the process of switching station. Therefore, the invention can quickly and safely implement the station switching among the WTPs under the same AC.

Abstract: A method for realizing a convergent Wireless Local Area Networks (WLAN) Authentication and Privacy Infrastructure (WAPI) network architecture with a split Medium Access Control (MAC) mode involves the steps: a split MAC mode for realizing WLAN Privacy Infrastructure (WPI) by an access controller is constructed through splitting the MAC function and the WAPI function of the wireless access point apart to a wireless terminal point and the access controller; integration of a WAPI and a convergent WLAN network system architecture is realized under the split MAC mode that the access controller realizes WPI; the association connection process is performed among a station point, a wireless terminal point and an access controller; the process for announcing the start of performing the WLAN Authentication Infrastructure (WAI) protocol between the access controller and the wireless terminal point is performed; the process for performing the WAI protocol between the station point and the access controller is performed;

Abstract: The present invention discloses a multicast key negotiation method suitable for group calling system and a system thereof. The method includes that: a user terminal (UT) negotiates about a unicast key with a base station (BS), derives an information encryption key and an integrity verifying key according to the unicast key, and registers a service group identifier that the UT belongs to at the BS; the BS notifies the UT the multicast key of the service group that the UT needs to apply, constructs a multicast key notification packet, and sends it to the UT; after receiving the multicast key notification packet sent by the BS, the UT obtains the multicast key of the service group that the UT needs to apply by decrypting a service group key application list, constructs a multicast key confirmation packet, and sends it to the BS; the BS confirms that the multicast key of the UT service group is built successfully according to the multicast key confirmation packet sent by the UT.

Abstract: The present invention provides a method for establishing the trusted network connect framework of tri-element peer authentication. The method includes: the implement of trusted network transport interface (IF-TNT); the implement of authentication policy service interface (IF-APS); the implement of trusted network connect (TNC) client-TNC access point interface (IF-TNCCAP); the implement of evaluation policy service interface (IF-EPS); the implement of integrity measurement collector interface (IF-IMC); the implement of integrity measurement verifier interface (IF-IMV); and the implement of integrity measurement (IF-IM). The embodiments of the present invention can establish the trust of the terminals, implement the trusted network connect of the terminals, implement the trusted authentication among the terminals, implement the trusted management of the terminals, and establish the TNC framework based on tri-element peer authentication (TePA) by defining the interfaces.

Abstract: An entity authentication method by introducing an online third party includes the following steps: 1) an entity B sends a message 1 to an entity A; 2) the entity A sends a message 2 to a trusted third party TP after receiving the message 1; 3) the trusted third party TP checks the validity of the entity A after receiving the message 2; 4) the trusted third party TP returns a message 3 to the entity A after checking the validity of the entity A; 5) the entity A sends a message 4 to the entity B after receiving the message 3; 6) and the entity B performs validation after receiving the message 4. The online retrieval and authentication mechanism of the public key simplifies the operating condition of a protocol, and realizes validity identification of the network for the user through the authentication of the entity B to the entity A.

Abstract: A method and system for establishing a secure connection between stations are disclosed. The method includes that: 1) a switch device receives an inter-station key request packet sent by a first user terminal; 2) the switch device generates an inter-station key, constructs an inter-station key announcement packet and sends it to a second user terminal; 3) the switch device receives an inter-station key announcement response packet sent by the second user terminal; 4) the switch device constructs an inter-station key announcement response packet and sends it to the first user terminal; 5) the switch device receives an inter-station key announcement response packet sent by the first user terminal. The switch device establishes an inter-station key for the two stations which are connected to the switch device directly, by which the embodiments of the present invention ensure the confidentiality and integrality of user data between the stations.