Abstract: Disclosed is a method for processing a SOCKET, a method and an apparatus for transmitting packet data, wherein, the method for processing a SOCKET comprises: a connection management application obtaining a SOCKET identifier corresponding to each service application, and transmitting the SOCKET identifier and a modification instruction to a TCP/IP (Transmission Control Protocol/Internet Protocol) protocol stack; the TCP/IP protocol stack searching for SOCKET file description information corresponding to the SOCKET identifier, and modifying the SOCKET file description information according to the modification instruction. After adopting the technical solution mentioned above, the IP binding operation across applications can be performed on a single-process or multi-process operating system, and the application level traffic selection of the different data connection can be performed according to intention of a user.

Abstract: Disclosed is a real-time transcode transfer method based on HTTP under DLNA, including: matching playing capability information with media item resource information, and according to the matching result, acquiring data of multimedia content from a digital media server. Also disclosed is a real-time transcode transfer system based on the HTTP under the DLNA. The present document can be used to realize the real-time transcoding of multimedia content and the real-time rebroadcasting of live stream based on the HTTP under the DLNA.

Abstract: A method and an apparatus for sharing a DLNA device are provided. The method includes: establishing a data channel between a first DLNA gateway in a first DLNA network and a second DLNA gateway in a second DLNA network, wherein the DLNA gateway is a DLNA device having a DMC function and capable of accessing the Internet; adding, in the second DLNA gateway, a virtual DLNA device corresponding to a DLNA device in the first DLNA network; and a DLNA device in the second DLNA network performing remote control and/or remote play for the DLNA device in the first DLNA network through the virtual DLNA device. With the provided schemes, the problem in related technologies that DLNA sharing is only limited in a local range is solved, cross-network remote control and remote play are implemented, a sharing range of the DLNA network is expanded, and the user experience is improved.

Abstract: The disclosure provides a method and system for transmitting and receiving data, and a method and device for processing message. In the method, a relay server receives an assignment request message from a first User Equipment (UE), wherein the assignment request message is used for obtaining, by the first UE, authorization from the relay server, and the authorization is used for permitting the first UE to transmit and/or receive data via the relay server; the relay server requests a service server to authenticate the first UE according to the assignment request message; in the case that the service server authenticates the first UE successfully, the relay server permits the first UE to transmit and/or receive data via the relay server. According to the technical solution provided by the disclosure, the operation complexity of a user is reduced, and the deployment and application of the relay server is improved greatly.

Abstract: Provided are a remote screen sharing method, device and system. The method includes: establishing a wireless screen sharing session with sink equipment, and acquiring capability information of the sink equipment; establishing a connection with remote equipment, and acquiring capability information of the remote equipment and network information of the remote equipment; determining an intersection of display capabilities of the sink equipment and the remote equipment according to the capability information of the sink equipment, the capability information of the remote equipment and the network information of the remote equipment; and receiving a screen content of the sink equipment via the wireless screen sharing session, and sharing the screen content of the sink equipment to the remote equipment according to the intersection of the display capabilities.

Abstract: Provided are a remote screen sharing method, device and system. The method includes: establishing a wireless screen sharing session with sink equipment, and acquiring capability information of the sink equipment; establishing a connection with remote equipment, and acquiring capability information of the remote equipment and network information of the remote equipment; determining an intersection of display capabilities of the sink equipment and the remote equipment according to the capability information of the sink equipment, the capability information of the remote equipment and the network information of the remote equipment; and receiving a screen content of the sink equipment via the wireless screen sharing session, and sharing the screen content of the sink equipment to the remote equipment according to the intersection of the display capabilities.

Abstract: The disclosure provides a method and system for transmitting and receiving data, and a method and device for processing message. In the method, a relay server receives an assignment request message from a first User Equipment (UE), wherein the assignment request message is used for obtaining, by the first UE, authorization from the relay server, and the authorization is used for permitting the first UE to transmit and/or receive data via the relay server; the relay server requests a service server to authenticate the first UE according to the assignment request message; in the case that the service server authenticates the first UE successfully, the relay server permits the first UE to transmit and/or receive data via the relay server. According to the technical solution provided by the disclosure, the operation complexity of a user is reduced, and the deployment and application of the relay server is improved greatly.

Abstract: Disclosed is a real-time transcode transfer method based on HTTP under DLNA, including: matching playing capability information with media item resource information, and according to the matching result, acquiring data of multimedia content from a digital media server. Also disclosed is a real-time transcode transfer system based on the HTTP under the DLNA. The present document can be used to realize the real-time transcoding of multimedia content and the real-time rebroadcasting of live stream based on the HTTP under the DLNA.

Abstract: A method and an apparatus for sharing a DLNA device are provided. The method includes: establishing a data channel between a first DLNA gateway in a first DLNA network and a second DLNA gateway in a second DLNA network, wherein the DLNA gateway is a DLNA device having a DMC function and capable of accessing the Internet; adding, in the second DLNA gateway, a virtual DLNA device corresponding to a DLNA device in the first DLNA network; and a DLNA device in the second DLNA network performing remote control and/or remote play for the DLNA device in the first DLNA network through the virtual DLNA device. With the provided schemes, the problem in related technologies that DLNA sharing is only limited in a local range is solved, cross-network remote control and remote play are implemented, a sharing range of the DLNA network is expanded, and the user experience is improved.

Abstract: A method for accessing a 3G network includes: a terminal accessing a wireless local area network by adopting a WAPI protocol, and notifying an AAA server of a 3G network through an AP of the wireless local area network that the terminal intends to access the 3G network; the AAA server obtaining identity information of the terminal through the AP, and performing an EAP-TLS negotiation process with the terminal through the AP after determining that the terminal is a subscription terminal of the 3G network according to the identity information; and the terminal accessing the 3G network after finishing the EAP-TLS negotiation process. A system for accessing a 3G network includes an AP of a wireless local area network and an AAA server of a 3G network. The present invention reduces unnecessary processes the message interacting, the certificate verification, the signature verification, and so on and improves the system efficiency.

Abstract: A method and system for updating and using a digital certificate, and the method comprises: a first terminal establishing a secure link with an access point and using the secure link to send a certificate updating request to the access point, where the certificate updating request includes a digital certificate to be updated which is currently used by the first terminal; and the access point sending the digital certificate to be updated to a local Authentication Service Unit which issues the certificate to be updated; and the local Authentication Service Unit which issues the digital certificate to be updated verifying the digital certificate to be updated, and after the digital certificate is verified to be valid, a local Authentication Service Unit corresponding to the access point generating a new digital certificate of the first terminal and sending the new digital certificate to the first terminal through the access point.

Abstract: A security service control method and a WLAN terminal are provided, and the method includes: stopping a WPI service between a WLAN terminal and an AP when the WLAN terminal creates a security service of an IP layer and/or a layer above the IP layer, wherein the WPI service comprises: encrypting a data link layer message to be transmitted, and decrypting a received data link layer message. After the WPI service is stopped, when the WLAN terminal cancels the security service of the IP layer and/or the layer above the IP layer, the WLAN terminal completes processes of removing association, association, user authentication and key negotiation in turn with the WLAN AP, and uses a session key obtained through the key negotiation to recover the WPI service. The calculating resources can be saved by using the present invention.

Abstract: Disclosed is a method for processing a SOCKET, a method and an apparatus for transmitting packet data, wherein, the method for processing a SOCKET comprises: a connection management application obtaining a SOCKET identifier corresponding to each service application, and transmitting the SOCKET identifier and a modification instruction to a TCP/IP (Transmission Control Protocol/Internet Protocol) protocol stack; the TCP/IP protocol stack searching for SOCKET file description information corresponding to the SOCKET identifier, and modifying the SOCKET file description information according to the modification instruction. After adopting the technical solution mentioned above, the IP binding operation across applications can be performed on a single-process or multi-process operating system, and the application level traffic selection of the different data connection can be performed according to intention of a user.

Abstract: The present invention discloses a network security HTTP negotiation method and related devices.

Abstract: The present invention discloses a security management method and a security management system for a WAPI terminal accessing an IMS network. The method comprises: an authentication service unit (ASU) sending, under the circumstance that an access point and the WAPI terminal pass the verification of the ASU, a security information request message to a home subscriber server (HSS) (S302); the HSS setting security information corresponding to the IMS account information of the WAPI terminal as access layer security after receiving the security information request message from the ASU (S304); a proxy-call session control function (P-CSCF) receiving an IMS login request message from the WAPI terminal, inquiring about the security information of the WAPI terminal through the HSS, and allowing the WAPI terminal to execute an IMS service flow under the circumstance that the security information of the WAPI terminal is the access layer security (S306).

Abstract: An IMS multimedia communication method and system, terminal and IMS core network, wherein the IMS multimedia communication method includes signal negotiation performed between the terminal and the IMS core network, and during the process of signal negotiation, an IPSec-ESP security association for media transmission is established between the terminal and the IMS core network; the media content is transmitted between the terminal and the IMS core network via the IPSec-ESP security association for media transmission. The security of media content transmitted between the terminal and the IMS core network is maintained solving the safety problem of multimedia communication under IMS in related technology, and preventing the media content from being maliciously stolen and tampered by others when transmitted between the terminal and the IMS core network.

Abstract: A method for pre-authenticating a wireless local area network terminal and a wireless local area network system. The pre-authentication method includes after a current access point (AP) which has set up security association with a station (STA) receiving a pre-authentication start packet sent by the STA, the current AP interacting with a destination AP to verify certificates of the current AP and the destination AP for each other. If a certificate of the destination AP is verified to be valid, the current AP sending key information of the security association set up with the STA by the current AP to the destination AP, and the destination AP saving the key information, the key information including a basic key generated by negotiation between the STA and the current AP.

Abstract: A for accessing a 3G network. includes: a terminal accessing a wireless local area network by adopting a WAPI protocol, and notifying an AAA server of a 3G network through an AP of the wireless local area network that the terminal intends to access the 3G network; the AAA server obtaining identity information of the terminal through the AP, and performing an EAP-TLS negotiation process with the terminal through the AP after determining that the terminal is a subscription terminal of the 3G network according to the identity information; and the terminal accessing the 3G network after finishing the EAP-TLS negotiation process. A system for accessing a 3G network includes an AP of a wireless local area network and an AAA server of a 3G network. The present invention reduces unnecessary processes (the message interacting, the certificate verification, the signature verification, and so on) and improves the system efficiency.

Abstract: A security service control method and a WLAN terminal are provided, and the method includes: stopping a WPI service between a WLAN terminal and an AP when the WLAN terminal creates a security service of an IP layer and/or a layer above the IP layer, wherein the WPI service comprises: encrypting a data link layer message to be transmitted, and decrypting a received data link layer message. After the WPI service is stopped, when the WLAN terminal cancels the security service of the IP layer and/or the layer above the IP layer, the WLAN terminal completes processes of removing association, association, user authentication and key negotiation in turn with the WLAN AP, and uses a session key obtained through the key negotiation to recover the WPI service. The calculating resources can be saved by using the present invention.

Abstract: A method for pre-authenticating a wireless local area network terminal and a wireless local area network system. The pre-authentication method includes after a current access point (AP) which has set up security association with a station (STA) receiving a pre-authentication start packet sent by the STA, the current AP interacting with a destination AP to verify certificates of the current AP and the destination AP for each other. If a certificate of the destination AP is verified to be valid, the current AP sending key information of the security association set up with the STA by the current AP to the destination AP, and the destination AP saving the key information, the key information including a basic key generated by negotiation between the STA and the current AP.