FUNCTION CIPHER APPLICATION SYSTEM

摘要

In accordance with a rule defined for respective protocols according to a function cipher system, or a rule defined for respective combinations of the protocols, an information output device specifies a type of identifier or a plurality of types of identifiers corresponding to a specific protocol in accordance with the function cipher system or a combination of the specific protocols, sets specific first correspondence information corresponding to the identifier/identifiers, and outputs first information which is a cryptogram or key information of the function cipher system corresponding to the specific first correspondence information. The information processing device inputs the first information and second information to a decryption function of the function cipher system, the second information being key information or a cryptogram of the function cipher system corresponding to specific second correspondence information; and generates a decryption result when a truth-value of a logical expression corresponding to a combination of the specific first correspondence information corresponding to the first information and the specific second correspondence information corresponding to the second information is true.