Encryption device, encryption method, decryption device, and decryption method

五十部 孝典 Takanori (Inventor), Andrey ボグダノフ アンドレイ (Inventor)

Research output: Patent

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Abstract

[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.

Original languageEnglish
IPCG09C 1/ 00 A I
Patent numberWO2019031026
CountryInternational Bureau of the World Intellectual Property Organization (WIPO)
Priority date10/08/2017
Priority numberJP20170156143
Publication statusPublished - 14 Feb 2019

Cite this

五十部 孝典T., & ボグダノフ アンドレイ, A. (2019). IPC No. G09C 1/ 00 A I. Encryption device, encryption method, decryption device, and decryption method. (Patent No. WO2019031026).
五十部 孝典Takanori (Inventor) ; ボグダノフ アンドレイ, Andrey (Inventor). / Encryption device, encryption method, decryption device, and decryption method. IPC No.: G09C 1/ 00 A I. Patent No.: WO2019031026.
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abstract = "[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.",
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五十部 孝典T & ボグダノフ アンドレイ, A 2019, Encryption device, encryption method, decryption device, and decryption method, Patent No. WO2019031026, IPC No. G09C 1/ 00 A I.

Encryption device, encryption method, decryption device, and decryption method. / 五十部 孝典Takanori (Inventor); ボグダノフ アンドレイ, Andrey (Inventor).

IPC No.: G09C 1/ 00 A I. Patent No.: WO2019031026.

Research output: Patent

TY - PAT

T1 - Encryption device, encryption method, decryption device, and decryption method

AU - 五十部 孝典, Takanori

AU - ボグダノフ アンドレイ, Andrey

PY - 2019/2/14

Y1 - 2019/2/14

N2 - [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.

AB - [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.

M3 - Patent

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五十部 孝典T, ボグダノフ アンドレイ A, inventors. Encryption device, encryption method, decryption device, and decryption method. G09C 1/ 00 A I. 2019 Feb 14.