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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCC, ISEC, IT, WBS | 2023-03-15 16:10 |
Yamaguchi | (Primary: On-site, Secondary: Online) |
Active S-box Number Analysis with MILP of Type-2 Generalized Feistel Structure Using Sub-Block Dividing Masaya Okazaki, Tetsu Iwata (Nagoya Univ.)  IT2022-134 ISEC2022-113 WBS2022-131 RCC2022-131 |
Type-2 Generalized Feistel Structures (GFSs) are a well-known structure for constructing secure block ciphers. At Indocr... [more] | IT2022-134 ISEC2022-113 WBS2022-131 RCC2022-131 pp.419-426 |
| ISEC, SITE, LOIS | 2022-11-18 14:55 |
Online | Online | Active S-box Number Analysis with MILP of Type-2 Generalized Feistel Structure Consisting of Multiple SP Layers F-function Masaya Okazaki, Tetsu Iwata (Nagoya Univ.) ISEC2022-36 SITE2022-40 LOIS2022-20 |
Type-2 Generalized Feistel Structure (GFS) is known as a way to construct a secure block cipher. It is a $dm$-bit ($d ge... [more] | ISEC2022-36 SITE2022-40 LOIS2022-20 pp.32-38 |
| BioX, ISEC, SITE, ICSS, EMM, HWS, IPSJ-CSEC, IPSJ-SPT [detail] | 2021-07-20 14:50 |
Online | Online | Differential Path Search Using MILP against ForkSkinny Masaya Okazaki (Nagoya Univ.), Yu Sasaki (NTT), Tetsu Iwata (Nagoya Univ.) ISEC2021-35 SITE2021-29 BioX2021-36 HWS2021-35 ICSS2021-40 EMM2021-40 |
ForkSkinny is a symmetric key primitive desgined based on a tweakable block cipher called SKINNY, and it outputs two cip... [more] | ISEC2021-35 SITE2021-29 BioX2021-36 HWS2021-35 ICSS2021-40 EMM2021-40 pp.153-160 |
| ISEC | 2021-05-19 13:50 |
Online | Online | Distinguishing and Forgery Attacks against Romulus-N and Romulus-M Makoto Habu (Nagoya Univ.), Kazuhiko Minematsu (NEC), Tetsu Iwata (Nagoya Univ.) ISEC2021-6 |
Romulus is an authenticated encryption scheme based on a tweakable block cipher. It was submitted to the NIST Lightweigh... [more] | ISEC2021-6 pp.25-31 |
| WBS, IT, ISEC | 2021-03-04 09:25 |
Online | Online | Four-Block Type-2 Feistel Cipher from Tweakable Block Ciphers Kazuki Nakaya, Tetsu Iwata (Nagoya Univ.) IT2020-118 ISEC2020-48 WBS2020-37 |
A secure block cipher can be obtained from tweakable block ciphers (TBCs). In this paper, by using a TBC with $n$-bit bl... [more] | IT2020-118 ISEC2020-48 WBS2020-37 pp.37-44 |
| SITE, ISEC, HWS, EMM, BioX, IPSJ-CSEC, IPSJ-SPT, ICSS [detail] | 2020-07-20 15:45 |
Online | Online | Quantum Attacks on the Sum of Even-Mansour Pseudorandom Function Kazuo Shinagawa, Tetsu Iwata (Nagoya Univ.) ISEC2020-21 SITE2020-18 BioX2020-24 HWS2020-14 ICSS2020-8 EMM2020-18 |
At CRYPTO~2019, a method to construct a pseudorandom function from public random permutations was presented. In this pap... [more] | ISEC2020-21 SITE2020-18 BioX2020-24 HWS2020-14 ICSS2020-8 EMM2020-18 pp.47-51 |
| ISEC | 2020-05-20 10:10 |
Online | Online | Distinguishing, Forgery, and Plaintext Recovery Attacks against Google Adiantum Makoto Habu, Tetsu Iwata (Nagoya Univ.) ISEC2020-2 |
[more] | ISEC2020-2 pp.7-14 |
| ISEC, IT, WBS | 2020-03-11 10:20 |
Hyogo | University of Hyogo (Cancelled but technical report was issued) |
Security Proof of Cryptographic Permutation Based on Ideal Ciphers Ryota Nakamichi, Tetsu Iwata (Nagoya Univ.) IT2019-110 ISEC2019-106 WBS2019-59 |
Coron et al. proved the security of an iterative construction of a $2n$-bit cryptographic permutation that uses $3$ idea... [more] | IT2019-110 ISEC2019-106 WBS2019-59 pp.135-141 |
| ISEC | 2017-09-04 16:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Invited Talk]
ZMAC: A Fast Tweakable Block Cipher Mode for Highly Secure Message Authentication Tetsu Iwata (Nagoya Univ.), Kazuhiko Minematsu (NEC), Thomas Peyrin (NTU), Yannick Seurin (ANSSI) ISEC2017-47 |
[more] | ISEC2017-47 p.43 |
| ISEC, WBS, IT | 2017-03-09 10:50 |
Tokyo | TOKAI University | The Security of 3-Round RSA-OAEP against Related-Key Attacks Gembu Ito, Hiraku Morita, Tetsu Iwata (Nagoya Univ.) IT2016-101 ISEC2016-91 WBS2016-77 |
In 2013, Jia et al. proved that RSA-OAEP is secure against related-key attacks with respect to affine functions.In relat... [more] | IT2016-101 ISEC2016-91 WBS2016-77 pp.15-22 |
| ISEC, IT, WBS | 2014-03-10 11:25 |
Aichi | Nagoya Univ., Higashiyama Campus | On the Diffusion Property of Type 1 Generalized Feistel Cipher with Multi-input Multi-output Non-linear Functions Keisuke Ito, Shingo Yanagihara, Tetsu Iwata (Nagoya Univ.) IT2013-60 ISEC2013-89 WBS2013-49 |
[more] | IT2013-60 ISEC2013-89 WBS2013-49 pp.41-48 |
| EMM, ISEC, SITE, ICSS, IPSJ-CSEC, IPSJ-SPT [detail] | 2013-07-19 13:45 |
Hokkaido | Attacks on Authenticated Encryption Based on E-MACs Hayato Kobayashi, Hiraku Morita, Tetsu Iwata (Nagoya Univ.) ISEC2013-50 SITE2013-45 ICSS2013-55 EMM2013-52 |
[more] | ISEC2013-50 SITE2013-45 ICSS2013-55 EMM2013-52 pp.403-410 |
|
| ISEC | 2013-05-23 12:55 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Using KCV with CTR Mode and CENC Kazuma Iki, Tetsu Iwata (Nagoya Univ.) ISEC2013-1 |
[more] | ISEC2013-1 pp.1-8 |
| ISEC | 2012-12-12 16:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Invited Talk]
Breaking and Repairing GCM Security Proofs (from CRYPTO 2012) Tetsu Iwata, Keisuke Ohashi (Nagoya Univ.), Kazuhiko Minematsu (NEC) ISEC2012-78 |
[more] | ISEC2012-78 p.41 |
| ISEC, IT, WBS | 2011-03-03 16:35 |
Osaka | Osaka University | RFID Identification Protocol with Reduced Reader Computational Cost Takaaki Miyoshi, Tetsu Iwata (Nagoya Univ.) IT2010-76 ISEC2010-80 WBS2010-55 |
In the general setting of the RFID system, as each tag has its unique secret key, the reader needs to exhaustively searc... [more] | IT2010-76 ISEC2010-80 WBS2010-55 pp.49-55 |
| WBS, IT, ISEC | 2009-03-10 13:50 |
Hokkaido | Hakodate Mirai Univ. | AURORA: A Cryptographic Hash Algorithm Family Tetsu Iwata (Nagoya Univ.), Kyoji Shibutani, Taizo Shirai, Shiho Moriai, Toru Akishita (Sony Corp.) IT2008-87 ISEC2008-145 WBS2008-100 |
We propose a new hash function family AURORA supporting output lengths of 224, 256, 384, and 512 bits. The AURORA fami... [more] |
IT2008-87 ISEC2008-145 WBS2008-100 pp.277-286 |
| ISEC, SITE, IPSJ-CSEC | 2007-07-20 11:35 |
Hokkaido | Future University-Hakodate | Hardware Implementations of the 128-bit Blockcipher CLEFIA Taizo Shirai, Kyoji Shibutani, Toru Akishita, Shiho Moriai (Sony), Tetsu Iwata (Nagoya Univ.) ISEC2007-49 |
This paper presents optimization techniques and evaluation results in hardware implementations of the 128-bit blockciphe... [more] | ISEC2007-49 pp.29-36 |
| ISEC | 2007-05-18 09:45 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | The 128-bit Blockcipher CLEFIA Taizo Shirai, Kyoji Shibutani, Toru Akishita, Shiho Moriai (Sony), Tetsu Iwata (Nagoya Univ.) ISEC2007-1 |
We propose a new 128-bit blockcipher CLEFIA supporting key lengths of 128, 192 and 256 bits, which is compatible with ... [more] |
ISEC2007-1 pp.1-9 |
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