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Lee Hyang-Sook

Ewha Womans University · 情報科学

研究室紹介

Professor Lee Hyang-Sook's research lab specializes in cryptography and cybersecurity, with a strong focus on pairing-based cryptography, identity-based key agreement protocols, and privacy-preserving data aggregation. The lab explores advanced mathematical constructs such as elliptic curves with specific embedding degrees and CM discriminants, contributing to the development of secure and efficient cryptographic systems. Research also extends to systemic innovation models that integrate technology, economy, and society, emphasizing policy and institutional support for technological diffusion.

pairing-based cryptographyprivacy-preserving aggregationelliptic curve cryptographysystemic innovationsecure key agreement

Research Overview

Papers
128
Total Citations
982
Papers (5y)
27
Primary Field
情報科学

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
27total
2022
2023
2024
2025
2026
Citations per year (5y)
16total
20222023202420252026

Selected Papers

15
1
Article|71 citations·2005
IDENTITY BASED AUTHENTICATED KEY AGREEMENT FROM PAIRINGS
Hyang-Sook Lee, Young-Ran Lee
SJR Q3Communications of the Korean Mathematical SocietyOA

We present a new identity based authenticated key agreement protocol from pairings satisfying the required security attributes. The security of our protocol is based on the bilinear Diffie- Hellman assumption.

Computer Networks and CommunicationsComputer Science
2
Article|39 citations·2013
3D Holographic Technology and Its Educational Potential
Hyang-Sook Lee
SJR Q1TechTrends
Computer Vision and Pattern RecognitionComputer Science
3
Article|14 citations·2003
A self-pairing map and its applications to cryptography
Hyang-Sook Lee
SJR Q1Applied Mathematics and Computation
Information SystemsComputer Science
4
Book Chapter|10 citations·2019
On the Security of Multikey Homomorphic Encryption
Hyang-Sook Lee, Jeongeun Park
SJR Q2Lecture notes in computer science
Artificial IntelligenceComputer Science
5
Article|6 citations·2004
A group key agreement protocol from pairings
Iwan Duursma, Hyang-Sook Lee
SJR Q1Applied Mathematics and Computation
Artificial IntelligenceComputer Science
6
Book Chapter|5 citations·2009
Generating Pairing-Friendly Curves with the CM Equation of Degree 1
Hyang-Sook Lee, Cheol‐Min Park
SJR Q2Lecture notes in computer science
Information SystemsComputer Science
7
Article|3 citations·2012
CONSTRUCTING PAIRING-FRIENDLY CURVES WITH VARIABLE CM DISCRIMINANT
Hyang-Sook Lee, Cheol‐Min Park
SJR Q3Bulletin of the Korean Mathematical SocietyOA

A new algorithm is proposed for the construction of Brezing-Weng-like elliptic curves such that polynomials defining the CM discriminant are linear. Using this construction, new families of curves with variable discriminants and embedding degrees of <TEX>$k{\in}\{8,16,20,24\}$</TEX>, which were not covered by Freeman, Scott, and Teske [9], are presented. Our result is useful for constructing elliptic curves with larger and more flexible discriminants.

Information SystemsComputer Science
8
Article|3 citations·2011
An efficient incomparable public key encryption scheme
Hyang-Sook Lee, Seongan Lim
SJR Q1Information Sciences
Artificial IntelligenceComputer Science
9
Article|3 citations·2023
On Insecure Uses of BGN for Privacy Preserving Data Aggregation Protocols
Hyang-Sook Lee, Hyang-Sook Lee, Seongan Lim, Ikkwon Yie, Ikkwon Yie, Aaram Yun, Aaram Yun
SJR Q3Fundamenta Informaticae

The notion of aggregator oblivious (AO) security for privacy preserving data aggregation was formalized with a specific construction of AO-secure blinding technique over a cyclic group by Shi et al. Some of proposals of data aggregation protocols use the blinding technique of Shi et al. for BGN cryptosystem, an additive homomorphic encryption. Previously, there have been some security analysis on some of BGN based data aggregation protocols in the context of integrity or authenticity of data. Ev

Artificial IntelligenceComputer Science
10
Article|2 citations·2022
Exploring the Diffusion Factors of Among Technology, Economic, and Social Innovation: Discussion for Developing the Integrated Innovation Model
Hyang-Sook Lee, Inhye Yoo, Min-Hyuk Cho, Chan-Goo Yi
Journal of Korea Technology Innovation Society

새로운 기술은 경제와 사회의 변화를 유발하는 동인이 되기도 하고 경제 및 사회 영역에서 발생하는 문제들을 해결하는 수단이 되기도 한다. 혁신은 기술, 경제, 사회 등 영역 간 연계와 확산을 통해 사회 전반의 총체적 변화를 가져온다. 따라서 혁신의 확산은 각 영역의 상호영향을 포괄하는 통합적 관점에서 분석하는 것이 필요하다. 이 연구는 개별영역의 혁신이 다른 영역으로의 연계와 확산에 영향을 주는 요인에 대해 탐색하고자 하였다. 이를 위해 통합혁신모형을 원용하여 기술, 경제, 사회의 혁신영역을 구분하고 시스템적 접근을 활용하여 환경, 주체, 과정 요인과 기술 특성 요인으로 분석범주를 유형화하여 확산요인을 구성한 후, AHP 분석을 통해 확산요인들의 중요도를 도출하였다. 그 결과, 정부의 제도변화 의지 요인의 중요도가 가장 높았다. 혁신영역을 통합한 확산요인으로는 기술변화로 인한 경제·사회적 환경 변화와 확산주체 중 기업의 역할이 중요한 것으로 나타났다. 따라서 혁신은 기업이 주축이 되어

Cultural StudiesSocial Sciences
11
Article|2 citations·1998
Induced maps in homology for p-toral compact Lie groups
Hyang-Sook Lee
SJR Q2Topology and its Applications
Mathematical PhysicsMathematics
12
Article|2 citations·2003
MULTIPARTY KEY AGREEMENT PROTOCOL BASED ON SYMMETRIC TECHNIQUES
Hyang-Sook Lee, Young-Ran Lee, Juhee Lee
SJR Q3Communications of the Korean Mathematical Society

In this paper, we propose multiparty key agreement protocols by generalizing the Blom's scheme based on 2 variable polynomials. Especially we develop three party and four party key agreement schemes with security. The advantage of the new schemes is to have small demands on storage space.

Computer Networks and CommunicationsComputer Science
13
Article|1 citations·2016
An efficient lattice reduction using reuse technique blockwisely on NTRU
Kyungmi Chung, Hyang-Sook Lee, Seongan Lim
SJR Q2Discrete Applied Mathematics
Artificial IntelligenceComputer Science
14
Article|1 citations·2017
A Study on the Derivation and Evaluation of Core Practice Competency for Occupational Therapy
Hyang-Sook Lee, Yea-Yong Yoon, Chong-Su Noh, Jae-Cheol Song
The Journal of Korean Society of Occupational Therapy
Leadership and ManagementNursing
15
Article|1 citations·2016
Families of Pairing-Friendly Elliptic Curves from a Polynomial Modification of the Dupont-Enge-Morain Method
Hyang-Sook Lee, Pa-Ra Lee
SJR Q3Applied Mathematics & Information Sciences
Computational MechanicsEngineering

Research Areas

Artificial IntelligenceInformation SystemsIndustrial and Manufacturing EngineeringMathematical PhysicsComputer Networks and CommunicationsMechanical Engineering

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