| 11269993 |
Encryption device, encryption method, decryption device, and decryption method |
Takanori Isobe, Andrey Bogdanov |
2022-03-08 |
| 11153068 |
Encryption device, encryption method, decryption device and decryption method |
Takanori Isobe, Kyoji Shibutani |
2021-10-19 |
| 10020945 |
Information processing apparatus and to efficiently substitute coefficients of a multivariate polynomial |
Koichi Sakumoto, Taizo Shirai, Kazuya Kamio |
2018-07-10 |
| 9979549 |
Information processing to perform authentication between a prover and a verifier |
Koichi Sakumoto, Masanobu Katagi, Kazuya Kamio |
2018-05-22 |
| 9672007 |
Device for performing arithmetic operations of multivariate polynomials, control method, and program |
Toru Akishita |
2017-06-06 |
| 9602285 |
Authentication device, authentication method, and program |
Koichi Sakumoto, Taizo Shirai |
2017-03-21 |
| 9516007 |
Verifier and prover have an authentication protocol with challenge-response with the challenge from prover having identification of the verifier |
Koichi Sakumoto, Taizo Shirai |
2016-12-06 |
| 9418245 |
Encryption processing device, encryption processing method, and program |
Kyoji Shibutani, Toru Akishita, Takanori Isobe, Taizo Shirai, Atsushi Mitsuda |
2016-08-16 |
| 9276735 |
Information processing apparatus, signature generation apparatus, information processing method, signature generation method, and program |
Koichi Sakumoto, Taizo Shirai |
2016-03-01 |
| 9270458 |
Encryption processing device, encryption processing method, and program |
Kyoji Shibutani, Atsushi Mitsuda, Toru Akishita, Takanori Isobe, Taizo Shirai |
2016-02-23 |
| 9129122 |
Signature verification apparatus, signature verification method, program, and recording medium |
Koichi Sakumoto, Taizo Shirai |
2015-09-08 |
| 9123194 |
Print medium, card creation method, and program |
Koichi Sakumoto, Taizo Shirai |
2015-09-01 |
| 9083507 |
Data processing device, data processing method, and program |
Kyoji Shibutani, Toru Akishita, Takanori Isobe, Taizo Shirai, Atsushi Mitsuda |
2015-07-14 |
| 9076000 |
Authentication device, authentication method, and program |
Koichi Sakumoto, Taizo Shirai |
2015-07-07 |
| 9031230 |
Encryption processing device, encryption processing method, and program |
Toru Akishita |
2015-05-12 |
| 8983062 |
Encryption processing device, encryption processing method, and programme |
Kyoji Shibutani, Toru Akishita, Takanori Isobe, Taizo Shirai, Atsushi Mitsuda |
2015-03-17 |
| 8959355 |
Authentication device, authentication method, program, and signature generation device |
Koichi Sakumoto, Taizo Shirai |
2015-02-17 |
| 8826025 |
Authentication device, authentication method, program, and signature generation device |
Koichi Sakumoto, Taizo Shirai |
2014-09-02 |
| 8675867 |
Key generation algorithm using secret polynomial over finite ring and transformation |
Koichi Sakumoto, Taizo Shirai |
2014-03-18 |
| 8522033 |
Authentication device, authentication method, program, and signature generation device |
Koichi Sakumoto, Taizo Shirai |
2013-08-27 |
| 8433912 |
Authentication device, authentication method, program, and signature generation device |
Koichi Sakumoto, Taizo Shirai |
2013-04-30 |
| 8213609 |
Key generating device, encrypting device, receiving device, key generating method, encrypting method, key processing method, and program |
Masafumi Kusakawa, Seiichi Matsuda, Tomoyuki Asano |
2012-07-03 |