Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 56

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 203

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 212

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 276

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 304

Warning: Undefined array key "abst" in /var/www/02search_html/bin/author.php on line 323
IEICE Trans

Tetsu IWATA

Feistel Ciphers Based on a Single Primitive
Kento TSUJI Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2024/08/01
Vol. E107-A  No. 8  pp. 1229-1240
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
feistel cipher, tweakable block cipher, ideal cipher, provable security, 
 Summary | Full Text:PDF
Indifferentiability of SKINNY-HASH Internal Functions
Akinori HOSOYAMADA Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2021/09/01
Vol. E104-A  No. 9  pp. 1156-1162
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: Cryptography and Information Security
Keyword: 
symmetric-key cryptography, provable security, sponge construction, indifferentiability, SKINNY, SKINNY-HASH, 
 Summary | Full Text:PDF
On the Design Rationale of SIMON Block Cipher: Integral Attacks and Impossible Differential Attacks against SIMON Variants
Kota KONDO Yu SASAKI Yosuke TODO Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2018/01/01
Vol. E101-A  No. 1  pp. 88-98
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
lightweight block cipher, integral attack, impossible differential attack, design rationale, rotation constant, 
 Summary | Full Text:PDF
On the Security of Non-Interactive Key Exchange against Related-Key Attacks
Hiraku MORITA Jacob C.N. SCHULDT Takahiro MATSUDA Goichiro HANAOKA Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2017/09/01
Vol. E100-A  No. 9  pp. 1910-1923
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
related-key attacks, Non-Interactive Key Exchange, Diffie-Hellman key exchange scheme, 
 Summary | Full Text:PDF
On the Security of Schnorr Signatures, DSA, and ElGamal Signatures against Related-Key Attacks
Hiraku MORITA Jacob C.N. SCHULDT Takahiro MATSUDA Goichiro HANAOKA Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2017/01/01
Vol. E100-A  No. 1  pp. 73-90
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
related-key attacks, Schnorr signatures, DSA, ElGamal signatures., 
 Summary | Full Text:PDF
Optimality of Tweak Functions in CLOC
Hayato KOBAYASHI Kazuhiko MINEMATSU Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/10/01
Vol. E98-A  No. 10  pp. 2152-2164
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
authenticated encryption scheme, CLOC, tweak functions, optimality, CAESAR competition, 
 Summary | Full Text:PDF
Type 1.x Generalized Feistel Structures
Shingo YANAGIHARA Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/04/01
Vol. E97-A  No. 4  pp. 952-963
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
blockcipher, Generalized Feistel Structure (GFS), Type 1.x GFS, permutation layer, 
 Summary | Full Text:PDF
Cryptanalysis of 249-, 250-, ..., 256-Bit Key HyRAL via Equivalent Keys
Yuki ASANO Shingo YANAGIHARA Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 371-383
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
cryptanalysis, blockcipher, HyRAL, equivalent key, 
 Summary | Full Text:PDF
Improving the Permutation Layer of Type 1, Type 3, Source-Heavy, and Target-Heavy Generalized Feistel Structures
Shingo YANAGIHARA Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/01/01
Vol. E96-A  No. 1  pp. 2-14
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Key Cryptography
Keyword: 
blockcipher, generalized Feistel structure (GFS), permutation layer, computer experiment., 
 Summary | Full Text:PDF
Security of Hash-then-CBC Key Wrapping Revisited
Yasushi OSAKI Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/01/01
Vol. E96-A  No. 1  pp. 25-34
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Key Cryptography
Keyword: 
authenticated key wrapping, hash function, CBC mode, security proof, deterministic authenticated encryption, 
 Summary | Full Text:PDF
Further More on Key Wrapping
Yasushi OSAKI Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/01/01
Vol. E95-A  No. 1  pp. 8-20
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Cryptography
Keyword: 
key wrapping scheme, universal hash function, uniform hash function, ECB mode, CBC mode, security proof, 
 Summary | Full Text:PDF
MPP Characteristics of Variants of Merkle-Damgård Iterated Hash Functions
Shungo NAKAMURA Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/01/01
Vol. E93-A  No. 1  pp. 93-101
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Hash Function
Keyword: 
Merkle-Damgård iterated hash function, multi-property-preserving characteristics, security proof, 
 Summary | Full Text:PDF
Tweakable Pseudorandom Permutation from Generalized Feistel Structure
Atsushi MITSUDA Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/01/01
Vol. E93-A  No. 1  pp. 13-21
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Cryptography
Keyword: 
Luby-Rackoff theory, tweakable blockcipher, generalized feistel structure, security proofs, 
 Summary | Full Text:PDF
Security of the Five-Round KASUMI Type Permutation
Tetsu IWATA Tohru YAGI Kaoru KUROSAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/01/01
Vol. E91-A  No. 1  pp. 30-38
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Cryptography
Keyword: 
blockcipher, KASUMI, adaptive chosen plaintext and chosen ciphertext attacks, provable security, 
 Summary | Full Text:PDF
How to Construct Super-Pseudorandom Permutations with Short Keys
Tetsu IWATA Kaoru KUROSAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/01/01
Vol. E90-A  No. 1  pp. 2-13
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Cryptography
Keyword: 
Luby-Rackoff theory, super-pseudorandomness, Feistel permutation, MISTY-type permutation, 
 Summary | Full Text:PDF
On the Security of a MAC by Mitchell
Tetsu IWATA Kaoru KUROSAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/01/01
Vol. E88-A  No. 1  pp. 25-32
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Key Cryptography
Keyword: 
message authentication code, OMAC, security proofs, security gap, pseudorandom permutation, 
 Summary | Full Text:PDF
How to Improve Interpolation Attack
Kaoru KUROSAWA Tetsu IWATA Quang Viet DUONG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/01/01
Vol. E88-A  No. 1  pp. 9-15
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Key Cryptography
Keyword: 
block cipher, interpolation attack, root finding algorithm, resultant, 
 Summary | Full Text:PDF
On the Correctness of Security Proofs for the 3GPP Confidentiality and Integrity Algorithms
Tetsu IWATA Kaoru KUROSAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/05/01
Vol. E87-A  No. 5  pp. 1110-1118
Type of Manuscript:  Special Section LETTER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
cryptography, f 8, f 9, modes of operation, provable security, block cipher, pseudorandom permutation, 
 Summary | Full Text:PDF
On the Pseudorandomness of KASUMI Type Permutations
Tetsu IWATA Tohru YAGI Kaoru KUROSAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/05/01
Vol. E87-A  No. 5  pp. 1098-1109
Type of Manuscript:  Special Section LETTER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
cryptography, block cipher, KASUMI, pseudorandomness, provable security, 
 Summary | Full Text:PDF
TMAC: Two-Key CBC MAC
Kaoru KUROSAWA Tetsu IWATA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/01/01
Vol. E87-A  No. 1  pp. 46-53
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Cipher
Keyword: 
cryptography, CBC MAC, block cipher, provable security, 
 Summary | Full Text:PDF
On the Universal Hash Functions in Luby-Rackoff Cipher
Tetsu IWATA Kaoru KUROSAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/01/01
Vol. E87-A  No. 1  pp. 60-66
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Cipher
Keyword: 
cryptography, block cipher, Feistel permutation, super-pseudorandomness, 
 Summary | Full Text:PDF
Inclusion Relations of Boolean Functions Satisfying PC(l) of Order k
Tetsu IWATA Kaoru KUROSAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/01/01
Vol. E86-A  No. 1  pp. 47-53
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Ciphers and Hash Functions
Keyword: 
cryptography, Boolean function, propagation characteristic, inclusion relations, 
 Summary | Full Text:PDF
Round Security and Super-Pseudorandomness of MISTY Type Structure
Tetsu IWATA Tomonobu YOSHINO Tomohiro YUASA Kaoru KUROSAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/01/01
Vol. E85-A  No. 1  pp. 2-10
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
cryptography, block cipher, round security, super-pseudorandomness, MISTY type structure, 
 Summary | Full Text:PDF