Abstract: According to a first aspect of the present invention, therein is provided a method of determining or generating a unique identifier for a device, the device exhibiting quantum mechanical confinement, the method comprising: measuring a unique quantum mechanical effect of the device that results from the quantum mechanical confinement; and using the measurement to determine or generate the unique identifier.

Abstract: According to a first aspect of the present invention, therein is provided a method of determining or generating a unique identifier for a device, the device exhibiting quantum mechanical confinement, the method comprising: measuring a unique quantum mechanical effect of the device that results from the quantum mechanical confinement; and using the measurement to determine or generate the unique identifier.

Abstract: Unique Identifier According to a first aspect of the present invention, therein is provided a method of determining or generating a unique identifier for a device, the device exhibiting quantum mechanical confinement, the method comprising: measuring a unique quantum mechanical effect of the device that results from the quantum mechanical confinement; and using the measurement to determine or generate the unique identifier.

Abstract: Unique Identifier According to a first aspect of the present invention, therein is provided a method of determining or generating a unique identifier for a device, the device exhibiting quantum mechanical confinement, the method comprising: measuring a unique quantum mechanical effect of the device that results from the quantum mechanical confinement; and using the measurement to determine or generate the unique identifier.

Abstract: A wireless network (1) comprises a base station (2) and sensor nodes (3). The base station (2) comprises a network interface (10), an application interface (11), topology control functions (12) a timer (13), and a buffer (14). Each sensor node (3) comprises a network interface (20), route control functions (21), processing functions (22), sensors (23), flood mechanism programs (24), tree mechanism programs (25), and data forwarding programs (26). The network operates by establishing a conventional routing tree from the sink node that is used when the network is stable. But when a sending node detects a node or link failure it dynamically switches to sending its data packets using a flooding mechanism, rather than waiting for the routing tree to be re-established. This reduces the latency for data delivery. Also, when flooding the data packets, it allows the packets to be flooded to nodes that are an equal number of hops from the sink node as the send node is from the sink node.

Abstract: A wireless network (1) comprises a base station (2) and sensor nodes (3). The base station (2) comprises a network interface (10), an application interface (11), topology control functions (12) a timer (13), and a buffer (14). Each sensor node (3) comprises a network interface (20), route control functions (21), processing functions (22), sensors (23), flood mechanism programs (24), tree mechanism programs (25), and data forwarding programs (26). The network operates by establishing a conventional routing tree from the sink node that is used when the network is stable. But when a sending node detects a node or link failure it dynamically switches to sending its data packets using a flooding mechanism, rather than waiting for the routing tree to be reestablished. This reduces the latency for data delivery. Also, when flooding the data packets, it allows the packets to be flooded to nodes that are an equal number of hops from the sink node as the send node is from the sink node.

Abstract: In a method and an arrangement, data are supplied by a firewall computing device to a further computing device when the firewall computing device can not process the utilized data protocol, and the further computing device takes over the functions of the firewall computing device during testing of the transmitted data pack and during performing the access readiness, wherein a data exchange is established from the further computing device again through the firewall computing device to a protected region, and an increased flexibility of the firewall operation is provided.