Publications

Signature Schemes Using Braid Groups
	K.H.Ko, M.S.Cho, D.H.Choi, J.W.Lee, S.J.Lee
	Submitted.	[Full Article]
Provably Secure Public-Key Encryption Scheme Based on Braid Groups
	K.H.Ko, M.S.Cho, D.H.Choi, J.W.Han
	Submitted.	[Full Article]
Complexity of the Generalized Conjugacy Problem
	S.G.Hahn, E.Lee, J.H.Park
	Accepted at Discrete Applied Mathematics.	[Full Article]
An Efficient Broadcast Scheduling Algorithm for TDMA Ad-hoc Networks
	J.Yeo, H.Lee, S.Kim
	Computers and Operations Research, Vol. 29, No. 13, pp. 1793-1806, 2002.
Fast Elliptic Curve Point Counting Using Gaussian Normal Basis
	H.Y.Kim J.Y.Park, J.H.Cheon, J.H.Park, J.H.Kim, S.G.Hahn
	Algorithmic Number Theory - ANTS V, LNCS 2369, pp. 292-307.      [Implementation Data]	[Full Article]
Potential Weaknesses of the Commutator Key Agreement Protocol Based on Braid Groups
	S.J.Lee and E. Lee
	EUROCRYPT 2002, LNCS 2332, pp.14-28.	[Full Article]
Gauss sums and binomial coefficients
	D.H.Lee, S.G.Hahn
	Journal of Number Theory, Vol. 92, No.2, pp.257-271, 2002.	[Full Article]
An Efficient Implementation of Braid Groups
	J.C.Cha, K.H.Ko, S.J.Lee, J.W.Han, J.H.Cheon
	ASIACRYPT 2001, LNCS 2248, pp.144-156.	[Full Article]
A Probabilistic Elliptic Curve Cryptosystem as Secure as Factoring
	J.H.Cheon, D.H.Lee, S.G.Hahn
	Preprint.	[Full Article]
Elliptic Curve Discrete Logarithms and Wieferich Primes
	J.H.Cheon, D.H.Lee, S.G.Hahn
	Preprint.	[Full Article]
Pseudorandomness from Braid Groups
	E.Lee, S.J.Lee, S.G.Hahn
	CRYPTO 2001, LNCS 2139, pp.486-502.	[Full Article]
Optimal Locations of Switches and Interconnections for ATM LANs
	H.S.Choi, H.Lee, K.D.Lee, S. Kim
	Computers and Operations Research, Vol. 28, No.13, pp.1347-1366, 2001.
Some Congruences for Binomial Coefficients
	S.G.Hahn, D.H.Lee
	Advanced Studies in Pure Mathematics 30,(Class Field Theory - Its Centenary and Prospect). pp. 445-461, 2001.	[Full Article]
Modelling User Mobility in Microcellular Systems
	S.Kim, G.D.Lee
	Journal of Modelling and Simulation, Vol.21, No.2, pp.132-137, 2001.
New Type of Optimal Extension Fields and Its Applications
	J.H.Park, J.H.Cheon, S.G.Hahn
	Preprint.	[Full Article]
New Public-key Cryptosystem using Braid Groups
	K.H.Ko, S.J.Lee, J.H.Cheon, J.W.Han, S.J.Kang, C.S.Park
	CRYPTO 2000, LNCS 1880, pp. 166-183.	[Full Article]
A Channel Allocation for Cellular Mobile Radio Systems Using Simulated Annealing
	S.H.Kim, K.N.Chang, S.Kim
	Telecommunication Systems 14, pp. 95-106, 2000.
On Remarks of  Lifting Problems for Elliptic Curves
	H.J.Kim, J.H.Cheon, S.G.Hahn
	Advanced studies in Contemporary Mathematics, 2 (2000), pp. 21-36.	[Full Article]
Some Congruences for Binomial Coefficients II
	D.H.Lee, S.G.Hahn
	Proc. Japan Acad. Ser. A Math. Sci. Vol. 76 (2000), no. 7, pp.104-107.	[Full Article]
An Adaptive Time slot Assignment Algorithm for Variable Bandwidth Switching Systems
	J.I.Kim, S.Kim
	Computers and Operations Research 27, No.5, pp.423-435, 2000.
A Syndrome-Distribution Decoding of MOLS L_p Codes
	S.G.Hahn, D.G.Kim, Y.S.Kim
	Ars Combinatoia, 56 (2000), pp. 113-120.	[Full Article]
Elliptic Curve Discret Logarithms and Wieferich Primes
	J.H.Cheon, D.H.Lee, S.G.Hahn, S.T.Chee
	Proc. JW-ISC2000, pp. 25-26, 2000.	[Full Article]
Elliptic Curve Lifting Problem and Its Applications
	H.J.Kim, J.H.Cheon, S.G.Hahn
	Proc. Japan Acad. Ser. A Math. Sci, Vol. 75, No. 9, pp.166--169, 1999.	[Full Article]
Elliptic Curve Point Counting [korean]
	H.Y.Kim, J.H.Park, S.G.Hahn
	Submitted.	[Full Article]
McEliece Type PKC Based on Algebraic Geometry Code over Hyperelliptic Curve [korean]
	B.K.Kang, S.G.Hahn
	Journal of The Korea Institute of Information Security and Cryptology, Vol. 12, No. 1, pp. 43-53, 2002.	[Full Article]
A Provably Secure Pseudorandom Generator from Braid Groups [korean]
	E.Lee, S.G.Hahn
	Journal of The Korea Institute of Information Security and Cryptology, Vol. 11, No. 3, pp. 13-22, 2001.	[Full Article]
A fast construction of Elliptic Curves suitable for the Elliptic Curve Cryptosystem.[Korean]
	H.J.Kim, H.Y.Kim, S.G.Hahn
	Proc. Pure Math. 20, Part 1, Algebra and Cryptography, pp. 101-112.	[Full Article]
Elliptic Curve Discrete Logarithm and Lifting Problem [korean]
	H.J.Kim, J.H.Cheon, S.G.Hahn
	Comm. Korean Math. Soc. 14 (1999), No. 4, pp. 649-679	[Full Article]
Elliptic Curve Lifting and Its Application
	H.J.Kim, J.H.Cheon, S.G.Hahn
	WISC'99 excellent paper specification	[Full Article]
A New Elliptic Curve Cryptosystem as Secure as Factoring
	J.H.Cheon, D.H.Lee, S.G.Hahn
	WISC'99	[Full Article]