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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 18 of 18  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCC, ISEC, IT, WBS 2023-03-15
(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
ISEC, SITE, LOIS 2022-11-18
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
BioX, ISEC, SITE, ICSS, EMM, HWS, IPSJ-CSEC, IPSJ-SPT [detail] 2021-07-20
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
ISEC 2021-05-19
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
WBS, IT, ISEC 2021-03-04
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
SITE, ISEC, HWS, EMM, BioX, IPSJ-CSEC, IPSJ-SPT, ICSS [detail] 2020-07-20
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
ISEC 2020-05-20
Online Online Distinguishing, Forgery, and Plaintext Recovery Attacks against Google Adiantum
Makoto Habu, Tetsu Iwata (Nagoya Univ.) ISEC2020-2
 [more] ISEC2020-2
ISEC, IT, WBS 2020-03-11
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
ISEC 2017-09-04
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
ISEC, WBS, IT 2017-03-09
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
ISEC, IT, WBS 2014-03-10
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
EMM, ISEC, SITE, ICSS, IPSJ-CSEC, IPSJ-SPT [detail] 2013-07-19
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
ISEC 2013-05-23
Tokyo Kikai-Shinko-Kaikan Bldg. Using KCV with CTR Mode and CENC
Kazuma Iki, Tetsu Iwata (Nagoya Univ.) ISEC2013-1
 [more] ISEC2013-1
ISEC 2012-12-12
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
ISEC, IT, WBS 2011-03-03
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
WBS, IT, ISEC 2009-03-10
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
ISEC, SITE, IPSJ-CSEC 2007-07-20
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
ISEC 2007-05-18
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]
 Results 1 - 18 of 18  /   
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