Abstract: An information processing device converts a plurality of original data arranged on a preset n-dimensional map into a plurality of new data arranged on a map according to a conversion rule. In the conversion rule, when an original datum at a target position on the map has a value of out-of-criterion, a new datum at the target position is set to the value of the original datum at the target position, and when the original datum at the target position has a value of within-criterion, each of values of one or more original data excluding an original datum having a value of the out-of-criterion from original data included in a reference region is selected to perform majority voting with the values of the one or more original data selected, and the new datum at the target position is set to a value determined by the majority voting.

Abstract: An information processing apparatus according to an embodiment includes one or more hardware processor. The one or more hardware processor divides original data into a plurality of pieces of division data, each piece of the division data including a non-overlap with one another, and executes alteration processing in mutually different manners on the plurality of pieces of division data, the mutually different manners corresponding one-to-one to the plurality of pieces of division data.

Abstract: According to an embodiment, an information processing device includes one or more processors configured to: receive first connected information including first information and first authentication information to authenticate the first information; add, to the first connected information, guarantee information to guarantee an anteroposterior relation of reception of the first connected information; and generate second authentication information to authenticate the first information, the guarantee information, and the first authentication information, the second authentication information being generated using the first information or the first authentication information and using the guarantee information.

Abstract: According to an embodiment, an information processing device includes one or more processors configured to: receive first connected information including first information and first authentication information to authenticate the first information; add, to the first connected information, guarantee information to guarantee an anteroposterior relation of reception of the first connected information; and generate second authentication information to authenticate the first information, the guarantee information, and the first authentication information, the second authentication information being generated using the first information or the first authentication information and using the guarantee information.

Abstract: According to an embodiment, an information processing apparatus includes one or more processors. The one or more processors are configured to store, in a storage, communication data of nodes connected via a network and authentication information that is used for authentication between the nodes in communication of the communication data so that the communication data and the authentication information are associated with each other.