[Problem] To ensure strong security in a white-box model without the use of random numbers. [Solution] This encryption device is provided with: an encryption unit which encrypts input values by means of a black-box model, in which input and output values can be recognized from the outside and intermediate values cannot be recognized from the outside; and a key generation unit which encrypts input values of the encryption unit by means of a white-box model, in which input and output values and intermediate values can be recognized from the outside, and generates an encryption key of the encryption unit.
|IPC||G09C 1/ 00 A I|
|Country/Territory||International Bureau of the World Intellectual Property Organization (WIPO)|
|Publication status||Published - 14 Feb 2019|