Abstract: A multifunctional desk includes a top plate, a leg portion that supports the top plate in air, a rotating shaft provided below and parallel to the top plate, a rotating plate provided below the top plate, a first fixture, a second fixture, and a slide plate provided below the top plate and above the rotating plate. The first fixture fixes the rotating plate to the top plate or releases the rotating plate from being fixed to the top plate in a state of protruding in front of the top plat. The second fixture fixes the rotating plate to the top plate or releases the rotating plate from being fixed to the top plate in a state of being retreated below the top plate. The slide plate protrudes in front of the top plate or is retreated below the top plate by sliding in parallel to the top plate.

Abstract: Devices generate security vectors based on their own attributes. A device's security vectors compose its transformation matrix. The devices securely share copies of their transformation matrices with other devices. A transmitting device adds its unique MAC to packets, encrypts those packets using its own transformation matrix, and transmits those packets. A receiving device uses its copy of the transmitting device's transformation matrix to decrypt the data in a packet, determining whether a MAC extracted from that packet matches the transmitting device's MAC. The receiving device can permit or prevent further processing of the packet's data depending on whether the MACs match. Each device can store a copy of a same program that can be used to derive derivative security vectors from existing security vectors. Each device in the network can derive the same set of derivative vectors for any selected other device in the network, thereby “evolving” the transformation matrices.

Abstract: Devices generate security vectors based on their own attributes. A device's security vectors compose its transformation matrix. The devices securely share copies of their transformation matrices with other devices. A transmitting device adds its unique MAC to packets, encrypts those packets using its own transformation matrix, and transmits those packets. A receiving device uses its copy of the transmitting device's transformation matrix to decrypt the data in a packet, determining whether a MAC extracted from that packet matches the transmitting device's MAC. The receiving device can permit or prevent further processing of the packet's data depending on whether the MACs match. Each device can store a copy of a same program that can be used to derive derivative security vectors from existing security vectors. Each device in the network can derive the same set of derivative vectors for any selected other device in the network, thereby “evolving” the transformation matrices.

Abstract: Devices generate security vectors based on their own attributes. A device's security vectors compose its transformation matrix. The devices securely share copies of their transformation matrices with other devices. A transmitting device adds its unique MAC to packets, encrypts those packets using its own transformation matrix, and transmits those packets. A receiving device uses its copy of the transmitting device's transformation matrix to decrypt the data in a packet, determining whether a MAC extracted from that packet matches the transmitting device's MAC. The receiving device can permit or prevent further processing of the packet's data depending on whether the MACs match. Each device can store a copy of a same program that can be used to derive derivative security vectors from existing security vectors. Each device in the network can derive the same set of derivative vectors for any selected other device in the network, thereby “evolving” the transformation matrices.