Abstract: A communication device includes a communicator that is mounted in a mobile body and functions as a wireless access point, a power supplier configured to supply electric power at least to a driver that causes the mobile body to travel, a detector configured to detect the electric energy of the power supplier, and a controller configured to control at least one of communication strength and communication quality of the communicator based on the electric energy detected by the detector.

Abstract: A communication device includes a communicator controller. The communication controller configured to cause a communicator to communicate with a terminal device in a first mode or a second mode, in which the first mode is a mode in which communication conditions are better than in the second mode, and, when the communication controller has acquired permission information indicating that communication in the first mode is permitted according to completion of processing of a first procedure different from a second procedure required for communication in the second mode in response to a request from the terminal device, the communication controller causes the communicator to communicate with a terminal device associated with the permission information in the first mode.

Abstract: There is provided a chatbot system including a plurality of user terminals, a chatbot, and a chat server. The chatbot includes a memory and a processor configured to create a message from data which is acquired from an external service, receive, as an input, a list including a user ID of a user terminal which has utilization authority for the data, generate a policy-equipped ciphertext by an encryption algorithm of ciphertext policy attribute-based encryption, and transmit the policy-equipped ciphertext to the chat server, and each of the user terminals includes a memory and a processor configured to receive a policy-equipped ciphertext from the chat server and decrypt the policy-equipped ciphertext using an attribute-equipped secret key which is generated on the basis of a user ID of the user terminal.

Abstract: An authentication and authorization system according to one embodiment includes: a plurality of devices that perform mutual authentication and authorization by an authentication protocol using ID-based encryption; and an authentication and authorization infrastructure that generates an ID and a private key used for the mutual authentication and authorization, in which the authentication and authorization infrastructure includes: an ID generation unit configured to generate an ID including at least an identifier of the device and information regarding the device; a generation unit configured to generate a private key of the device from the ID; and a distribution unit configured to distribute the ID and the private key to a device corresponding to the identifier included in the ID, and the device includes: a mutual authentication unit configured to perform mutual authentication with another device by using the ID and the private key of the own device; a verification unit configured to verify whether or not a pr

Abstract: A method for introducing a genome editing enzyme into a plant cell includes: treating the cell with plasma; and then bringing the cell into contact with the genome editing enzyme in the presence of a di- or higher-valent metal cation.

Abstract: There is provided a chatbot system including a plurality of user terminals, a chatbot, and a chat server. The chatbot includes a memory and a processor configured to create a message from data which is acquired from an external service, receive, as an input, a list including a user ID of a user terminal which has utilization authority for the data, generate a policy-equipped ciphertext by an encryption algorithm of ciphertext policy attribute-based encryption, and transmit the policy-equipped ciphertext to the chat server, and each of the user terminals includes a memory and a processor configured to receive a policy-equipped ciphertext from the chat server and decrypt the policy-equipped ciphertext using an attribute-equipped secret key which is generated on the basis of a user ID of the user terminal.