Abstract: A management device comprises a first authentication module, for receiving a first information and performing a first determination on whether an administrator device is correct according to the first information; an authorization module, coupled to the first authentication module, for performing a second determination on whether the administrator device comprises an access qualification for a remote device, when the first determination is positive and when receiving a first request message for accessing the remote device; a communication module, coupled to the authorization module, for transmitting a second request message for establishing a connection with a network device to the remote device, when the second determination is positive and when determining to establish the connection with the network device; an integration module, coupled to the authorization module, for transmitting a third request message for configuring a port forwarding to the network device, when the second determination is positive.

Abstract: An IoT gateway with configurable data transmission mode includes a data collector, a data capturer and a data uploader. The data collector is configured to collect the data provided by a data provider based on a first data policy. The data capturer is configured to capture the data collected by the data collector based on a second data policy. The data uploader is configured to handle the data captured by the data capturer based on a third data policy. The first data policy, the second data policy and the third data policy may be configured separately according to different IoT applications.

Abstract: A certificate management system includes an electronic device and a server. The electronic device is configured to transmit a certificate application request. The server is configured to sign a device certificate corresponding to the electronic device through an intermediate certificate device after receiving the certificate application request, and transmit the device certificate and the Internet address of the server to the electronic device. The electronic device stores the device certificate and the Internet address of the server to complete the certificate issuance operation.

Abstract: A certificate transfer system includes a first certificate management host and a certificate transfer management host. The first certificate management host is configured to generate a first certificate, sign an electronic device with the first certificate, and transmit a first Internet address to the electronic device to complete a certificate-issuance operation. The certificate transfer management host is configured to store a transfer device list and a second Internet address. When the first certificate management host receives the first certificate issued by the electronic device, the first certificate management host verifies that the first certificate is correct and determines that if the first certificate matches one of the certificates in the transfer device list, the first certificate management host returns the certificate transfer management host address to the electronic device.

Abstract: An IoT gateway with configurable data transmission mode includes a data collector, a data capturer and a data uploader. The data collector is configured to collect the data provided by a data provider based on a first data policy. The data capturer is configured to capture the data collected by the data collector based on a second data policy. The data uploader is configured to handle the data captured by the data capturer based on a third data policy. The first data policy, the second data policy and the third data policy may be configured separately according to different IoT applications.

Abstract: A certificate transfer system includes a first certificate management host and a certificate transfer management host. The first certificate management host is configured to generate a first certificate, sign an electronic device with the first certificate, and transmit a first Internet address to the electronic device to complete a certificate-issuance operation. The certificate transfer management host is configured to store a transfer device list and a second Internet address. When the first certificate management host receives the first certificate issued by the electronic device, the first certificate management host verifies that the first certificate is correct and determines that if the first certificate matches one of the certificates in the transfer device list, the first certificate management host returns the certificate transfer management host address to the electronic device.

Abstract: A certificate management system includes an electronic device and a server. The electronic device is configured to transmit a certificate application request. The server is configured to sign a device certificate corresponding to the electronic device through an intermediate certificate device after receiving the certificate application request, and transmit the device certificate and the Internet address of the server to the electronic device. The electronic device stores the device certificate and the Internet address of the server to complete the certificate issuance operation.

Abstract: The present invention provides a universal serial bus (USB) device and an operating method thereof. The USB device includes a plurality of Downstream Facing Ports (DFPs) and a control circuit. When a first external device is connected to the first DFP and the second DFP is not connected to any external device, the control circuit maintains the first DFP as one of a power source port and a power sink port according to the first external device, and maintains the second DFP as other one of the power source port and the power sink port regardless of whether the second DFP is connected to a second external device later until the first external device is removed from the first DFP.

Abstract: The present invention provides a universal serial bus (USB) device and an operating method thereof. The USB device includes a plurality of Downstream Facing Ports (DFPs) and a control circuit. When a first external device is connected to the first DFP and the second DFP is not connected to any external device, the control circuit maintains the first DFP as one of a power source port and a power sink port according to the first external device, and maintains the second DFP as other one of the power source port and the power sink port regardless of whether the second DFP is connected to a second external device later until the first external device is removed from the first DFP.