Keynote Speakers ( more will be updated )

Keynote Speaker I

Prof.Yoshifumi Manabe, Kogakuin University, Japan


Secure computation using physical cards



Computers are commonly used for encryption and decryption in cryptography.

In 1990, a new kind of cryptographic protocol has been proposed in which physical cards are used instead of computers to securely calculate values.They are useful when we cannot trust software on computers.Also, people who do not know about cryptography can execute and  understand the protocols.

den Boer first showed a five-card protocol to securely calculate logical AND of two inputs. Since then, many protocols have been proposed to calculate logical functions and specific computations such as millionaires' problem, voting, random permutation, grouping and so on. This talk shows several protocols and recent results using private operations.

The number of cards used in the protocol is the most important criteria to evaluate card-based cryptographic protocols.Using private operations, the theoretically minimum number of cards is achieved in many problems.


Yoshifumi Manabe was born in Osaka, Japan, on December 7, 1960.

He received B. E. and M. E. degrees in information engineering from Osaka University, Japan in 1983 and 1985. He received Ph. D. degree from Osaka University in 1993.

He worked for Nippon Telegraph and Telephone Corporation(NTT) from 1985 to 2013. He was a group leader of NTT Communication science Laboratories during 2000-2003 and 2007-2011.

In 1994-95, he was a visiting researcher of Department of Computer Science, The Johns Hopkins University.
He was also a guest associate professor of Graduate School of Informatics, Kyoto University from 2001 to 2013.
From 2013 to 2016, he was a Professor, Department of Computer Science, Faculty of Informatics, Kogakuin University.
Since 2016, he is a Professor, Department of Information Systems and Applied Mathematics, Faculty of Informatics, Kogakuin University.

His research interests include distributed algorithms, cryptography, and game theory.
He is a member of the ACM, IEEE, IPSJ(Information Processing Society of Japan), IEICE(The Institute of Electronics, Information and Communication Engineers(Japan)), and JSIAM(The Japan Society for Industrial and Applied Mathematics).


Keynote Speaker II

Prof. Christopher Nwosisi, The College of Westchester & Pace University New York, USA


Bio: Dr. Nwosisi graduated with a Bachelors Degree in Computer Science from Hunter College of CUNY, a diploma of Application Design from Columbia University, an M.S. degree in Management of Technology from Polytechnic University, and a D.P.S. in Computing from Pace University.  At all of these institutions, he was awarded a number of honors for academic excellence and for unusual achievement in basic research. Currently, he is a senior member of the Institute of Electrical Electronic Engineer Computer Society (IEEE).


He has served as Research Chair, Education Chair, Membership Chair, Certification Systems Professional Coordinator, and a member of the Board of Directors for the Association for System Management (ASM) - New York Chapter.  He has also served as a member of the Planning Committee, Treasurer, Secretary and a member of the executive committee for the Institute of Electrical Electronic Engineer Computer Society (IEEE) - New York Chapter. 

Dr. Nwosisi was an outstanding communicator in his over 20-year tenure in vascular surgery at Montefiore Medical Center and Albert Einstein College of Medicine in New York (USA).  He was an outstanding research coordinator as a result of his outstanding ability to communicate with various members of the research team at all levels within the organization. Much of this research dealt with the underlying mechanisms of computing to predict bypass graft patency, abdominal aortic aneurysm rupture, deep venous thrombosis, vascular laboratory workflow and patient centered care in healthcare systems.

During his tenure at Montefiore Medical Center and the several years immediately following it, Dr. Nwosisi engaged in a large number of clinical research projects, numbering more than 250+.  Almost all of these projects resulted in presentations at important international, national and regional meetings.  Most of these projects resulted in the publication of over 200 articles in major peer-reviewed journals. 

To date, Dr. Nwosisi has been the foundation for allowing the research team at Montefiore Medical Center to author or co-author various vascular textbooks, review articles, book chapters, and new research ideas changing the treatment options of patients afflicted with vascular disease. 

In addition, Dr. Nwosisi is a charismatic teacher and mentor who is admired and respected by his trainees/colleagues at the college level, medical/nursing/administrative level, medical/surgical resident level and physician level.  He is a most articulate speaker who presents extremely well at international, national and regional conferences.  He is a talented researcher and computer technologist who is commonly asked to tackle complex research problems in members of our faculty and by other physicians.