Japanese [www]

Tetsu Iwata

Welcome to Tetsu Iwata's web page.

I'm an Associate Professor in the Department of Computational Science and Engineering at Nagoya University.

My research interests are in cryptography and information security. I'm working on provable security of symmetric key cryptography, including encryption and message authentication.

• Email address: iwata (at) cse (dot) nagoya-u (dot) ac (dot) jp
• Mailing address:
  Department of Computational Science and Engineering,
  Nagoya University,
  Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
• Office: Integrated Building, North, Room 907.

CENC is an encryption mode for blockciphers.

• CENC page is here [www].
  

OMAC is a simple variant of the CBC MAC designed and analyzed by me and Kurosawa. It is a blockcipher-based message authentication code.
NIST is in the process of specifying blockcipher modes of operation in a series of special publications. ``NIST Special Publication 800-38B Recommendation for Block Cipher Modes of Operation: the CMAC Mode for Authentication'' has been finalized on May 18, 2005. This Recommendation specifies CMAC, which is equivalent to OMAC (OMAC1).

• OMAC page is here [www].
  
• NIST' modes page is here [www].
• ``NIST SP 800-38B Recommendation for Block Cipher Modes of Operation: The CMAC Mode for Authentication'' is availabe here [www].
  See ``Updated CMAC Examples (.pdf - 37 KB) [pdf]'' at NIST web site for updated TDES test vectors.
• ``The AES-CMAC Algorithm,'' RFC 4493, Junhyuk Song, Jicheol Lee, Radha Poovendran, and Tetsu Iwata, is available here [www].
• ``The AES-CMAC-PRF-128 Algorithm for the Internet Key Exchange Protocol (IKE),'' RFC 4615, Junhyuk Song, Radha Poovendran, Jicheol Lee, and Tetsu Iwata, is available here [www].

• DBLP is here [www].

• ISH '05, Information Security & Hiding, PC member, May 9-12, 2005, Singapore [www].
• ACIS '06, Applied Cryptography and Information Security, PC member, May 8-11, 2006, Glasgow, UK [www].
• Eurocrypt 2006, PC member, May 28-June 1, 2006, Saint Petersburg, Russia [www].
• Indocrypt 2006, PC member, December 11-13, 2006, Kolkata, India [www].
• Inscrypt (CISC) 2006, SKLOIS Conference on Information Security and Cryptology, PC member, November 29-December 1, 2006, Beijing, China [www].
• FSE 2007, Fast Software Encryption 2007, PC member, March 26-28, 2007, Luxembourg city, Luxembourg [www].
• ISPEC 2007, The 3rd Information Security Practice and Experience Conference, PC member, May 7-10, 2007, Hong Kong, China [www].
• ASWAN '07, The 2007 International Workshop on Application and Security service in Web and pervAsive eNvironments, PC member, June 16-18, 2007, HuangShan (Yellow Mountains), China [www].
• IPC-07, The 2007 International Conference on Intelligent Pervasive Computing, PC member, October 11-13, 2007, Jeju Island, Korea [www].
• SECURWARE 2007, International Conference on Emerging Security Information, Systems and Technologies, PC member, October 14-20, 2007, Valencia, Spain [www].
• IWSEC 2007, 2nd International Workshop on Security, PC member, October 29-31, 2007, Nara, Japan [www].
• Asiacrypt 2007, PC member, December 2-6, 2007, Kuching, Sarawak, Malaysia [www].
• CIS, International Conference on Computational Intelligence and Security, PC member, Decemnber 15-19, 2007, Harbin, China [www].
• FSE 2008, Fast Software Encryption 2008, PC member, February 10-13, 2008, Lausanne, Switzerland [www].
• WPS 2008, The 2nd International Workshop on Web and Pervasive Security, PC member, March 17-21, 2008, Hong Kong [www].
• ASIACCS 2008, 2008 ACM Symposium on Information, Computer and Communications Security, PC member, March 18-20, 2008, Tokyo, Japan [www].
• Africacrypt 2008, PC member, June 11-14, 2008, Casablanca, Morocco [www].
• SECURWARE 2008, International Conference on Emerging Security Information, Systems and Technologies, PC member, August 25-31, 2008, Cap Esterel, France [www].
• IWSEC 2008, The Third International Workshop on Security, PC member, November 25-27, 2008, Kagawa, Japan [www].
• The 2008 International Conference on Information Security and Assurance (ISA-08), Special Session on Security & Privacy in Pervasive Computing environments (SPPC 2008), PC member, April 24-26, 2008, Busan, Korea [www].