Com2MaC Workshop
 on
 Cryptography

¡¡June 26 - June 28, 2000
POSTECH, Pohang, Korea
  

 

    Second announcement

 

 

Purpose of the Workshop

The Combinatorial and Computational Mathematics Center (Com2MaC) at Pohang University of Science and Technology (POSTECH) in Korea, will host an yearly international Workshop in an area of computational number theory and
cryptography from June 26 to June 28, 2000. It is aimed to exchange informations and study cryptography as the number theory aspects.
It is hoped that the meeting will encourage and stimulate further research on the
security and implementation of cryptosystems and related areas, and encourage collaboration between mathematicians, computer scientists and engineers in the
academic, industry and government sectors.

There will be approximately 13 invited lectures (total 22 hour lectures with the remaining time used for informal discussions.

    

Invited Speakers

 

E. Bach

U.of Wisconsin

 

G. Frey

Univ. Essen, Germany

 

D.Goldfeld

Columbia U., U.S.A

 

J. Hoffstein

Brown U., U.S.A

 

*D. Stinson

U. Waterloo, Canada

 

*S. Vanston

U. Waterloo, Canada

 

S. Arita

Japan

 

S. Hahn

KAIST, Korea

 

D. Poincheval

France

 

T. Satoh

Japan

 

E. Teske

U. of Waterloo, Canada

 

*The talks of these speakers have been cancelled due to their emergency problem.

Call for papers

Authors are invited for 30 minutes talk  to send before April 30, 2000, two copies of an extended abstract of at most twelve pages to the corresponding Program
Administrator of Com
2MaC 2000 at the address shown below:
YoungJu  Choie, Department of Mathematics, POSTECH, Pohang, 790-784,
Korea.

 

Workshop Director

Dr. Jin Ho Kwak
Director of The Combinatorial and Computational Mathematics Center
Professor of Mathematics, POSTECH, Pohang, 790-784, Korea
jinkwak@postech.ac.kr

 

Scientific Advisory Committee

G. Frey (Germany)
S. Vanston(Canada)

 

Organizing Committee

Y.Choie(POSTECH): yjc@vision.postech.ac.kr, +82 562 279-2051
H.Kim(POSTECH):
hkkim@postech.ac.kr
P.Lee(POSTECH): pjl@postech.ac.kr
H.Kim(POSTECH): piglet@euclid.postech.ac.kr

 

Workshop program

 

Speaker & title (* 2 Lectures)

 

S. Arita

Cab curve cryptosystems

E. Bach*

The Random Bisection Process and its Applications

D. Chi

Quantum Secret Sharing

R. Feng

Isomorphism Classes of Authentication Codes

G. Frey*

Discrete Logarithm Systems and their Background in Arithmetical Geometry 

  • 1st Lecture

Cryptographic Background and aim

  • 2nd Lecture

Construction of DL-Systems based on abellian varieties

D.Goldfeld*

A New Algebraic Method for Public Key Cryptography

J. Hoffstein*

Lattices and public key cryptography

S. Hahn

Combinatorial Group Theory for Cryptography-A Case of Braid Groups

D. Poincheval

Secure Designs for Public-Key Cryptography based on the Discrete Logarithm

T. Saito

The decision Diffie-Hellman assumption and its application

T. Satoh

Counting points on elliptic curves over finite fields by the canonical lift

I. Tetsuya

Generating Suitable Curves for the Elliptic Curve Method of Factorization

E. Teske

Square-root algorithms for the discrete logarithm and related problems

 

Program

 

Monday, June 26, 2000

 

09:00-09:40

Registration

09:40-10:00

Opening address by the director of Com2MaC

10:00-11:00

G. Frey
Cryptographic Background and aim

11:00-12:00

J. Hoffstein
Lattices and public key cryptography I

12:00-12:10

a souvenir picture

12:10-14:00

Lunch

14:00-15:00

S. Arita
Cab curve cryptosystems

15:00-16:00

T. Satoh
Counting points on elliptic curves over finite fields by the canonical lift

16:00-16:30

Coffee

16:30-17:30

D. Poincheval
Secure Designs for Public-Key Cryptography based on the Discrete Logarithm

 

Tuesday, June 27, 2000

 

09:00-10:00

D.Goldfeld
A New Algebraic Method for Public Key Cryptography I

10:00-11:00

E. Bach
The Random Bisection Process and its Applications I

11:00-11:30

Coffee

11:30-12:30

G. Frey
Construction of DL-Systems based on abelian varieties

12:30-14:00

Lunch

14:00-15:00

E. Teske
Square-root algorithms for the discrete logarithm and related problems

15:00-16:00

S. Hahn
Combinatorial Group Theory for Cryptography-A Case of Braid Groups

16:00-16:30

Coffee

16:30-17:00

T. Saito
The decision Diffie-Hellman assumption and its application

17:00-17:30

I. Tetsuya
Generating Suitable Curves for the Elliptic Curve Method of Factorization

18:00-20:00

reception

 

Wednesday, June 28, 2000

 

09:00-10:00

E. Bach
The Random Bisection Process and its Applications II

10:00-11:00

J. Hoffstein
Lattices and public key cryptography II

11:00-11:30

Coffee

11:30-12:30

D.Goldfeld
A New Algebraic Method for Public Key Cryptography II

12:30-14:00

Lunch

14:00-14:30

S. Lee & D. Chi
Quantum Secret Sharing

14:30-15:00

R. Feng
Isomorphism Classes of Authentication Codes

 

Workshop Proceedings

All speakers are invited to submit a complete version of their work to the workshop Proceedings, a Special Issue of the journals Discrete Mathematics and Discrete Applied Mathematics devoted to the Com2MaC Workshop. The planned issues will not be comprehensive "proceedings" issues, but will be thoroughly refereed at the same level as in any of the major publications in
the area, and will consist of selections of the best contributions presented at the Workshop.

 

Location

The workshop will take place in the buliding at the POSTECH, Pohang, Korea. Pohang is located approximately 250 miles south of Seoul (or about 40-minute fly from Kimpo International Airport).

 

Participant support

Limited funds are available for partial support of participants, in particular for graduate students and junior researchers. Requests should include a statement of interest, the intended duration of workshop participation and a statement that no other support is available. All requests should be sent it in duplicate by May 15, 2000 to the following address :
Dr. YoungJu Choie, Department of Mathematics, POSTECH, Pohang, 790-784,
Korea.

 

Registration

There will be a registration fee of $100 U.S or 120,000 Won. ($50 or 60,000 won for students). PLEASE REGISTER AS SOON AS POSSIBLE AS SPACE IS LIMITED FOR THIS WORKSHOP;  REGISTRATION IS ON A FIRST-COME FIRST - SERVE BASIS.  We cannot process a registration until all fees are paid in full. The deadline for all fees to be paid and registration completed has been set for the 31th of  May, 2000. To register, complete, in full, the attached REGISTRATION FORM and return it along with your payment to: H.S.Ahn, Com2mac, Pohang University of Science and Technology, Pohang, Korea. Confirmation of your registration will be sent by e-mail when payment is received in full.

 

Payment:

  • Alien participants
    : All payment must be made in US dollars, either by international money order or bank checks payable to the Com
    2MaC - POSTECH
  • Korean participants
    : HANVIT Bank 494-045358-02-001 (ÇѺûÀºÇà, ¿¹±ÝÁÖ:¾ÈÇý¼÷)

 

Accommodations

Rooms will be blocked for the participants of the workshop at local hotels.
Registration and reservations must be made by May 31, 2000.
The participants who travel with family and/or who wish to stay at a hotel
on their own, they should indicate this on the registration form and contact
an organizer if they need local information or any assistance. Also, disability accommodations will be provided upon request.

 

Further Information

All travel related information as well as further information on workshop may be found via Internet and our workshop web site http: //com2mac. postech.ac.kr Questions regarding the technical program and/or regarding travel and local
arrangements should be directed to e-mail:
com2mac@postech.ac.kr

 

 

Registration form -- Com2MaC Workshop
:June 26-28, 2000

 

PLEASE MAIL OR FAX THIS FORM BY MAY 31, 2000 to Com2MaC, Department of Mathematics,  POSTECH, Pohang, 790-784, Korea or
E-MAIL com2mac@postech.ac.kr or FAX : 82-562-279-5511. 

 

First Name : _______________________________

Family Name:_______________________________

Affiliation : _____________________________________________

Address : _______________________________________________

_____________________________________________________________________
City        State/Province          Zip/Postal Code          Country

Telephone : ________________________________

FAX : ________________________________

E-mail : ________________________________

Male : _______      Female : ________

 

Duration of the Participation: I will attend the workshop from June___to June__.

 

Registration fee:

 

 

Accommodations

All accommodations are located within twenty-minute drive from the workshop site. If you wish to reserve an accommodation, please check the appropriate blank below.

 

Information on Accommodations

 

1. Hotel Royal Cygnus

   ______ A. Suite (approx. US$130/night)

   _______ B. Twin (approx. US$65/night)

   _______ C. Double (approx. US$65/night)

Tel : 82-562-275-2000 Fax : 82-562-275-2218

 

2. Ocean Park Tourist Hotel

   ______ A. Suite (approx. US$90/night)

   _______ B. Twin (approx. US$45/night)

   _______ C. Double (approx. US$45/night)

Tel : 82-562-277-5555 Fax : 82-562-273-5355

 

 

I wish to make a hotel reservation for a room from June ___ to June ___.
 (I will be accompanied by ___ persons.)

 

Number of nights : _______________
Female _____ Male _____

 

Payment : Payment for lodging may be made upon arrival.