Privacy and Applied Cryptography Lab.

Overview

Privacy and Applied Cryptography Lab (PACL) is a research group in the Department of Electrical Engineering and Computer Science and The Interdisciplinary Studies of Artificial Intelligence at DGIST.

Our central research topics are various applications based on cryptographic primitives. With the recent development of quantum computers, conventional public-key cryptosystems such as RSA or ECC (elliptic curve cryptography) are being threatened. Therefore, secure cryptographic algorithms under quantum computing environments have significant practical and industrial importance. We devise, analyze, and implement a new class of cryptographic schemes known as quantum-safe cryptography or post-quantum cryptography. 

Using cryptographic toolsets, we study technologies to preserve privacy in data process outsourcing. To this end, we develop and implement fully homomorphic encryption efficiently. Then, we investigate efficient and practical technologies that preserve privacy in the AI as a service (AIaaS) application. 

Another research application area for us is vehicle security technology. We develop quantum-resistant encryption for V2X and research technologies to detect abnormalities in intra/inter-vehicle networks and detect/tolerate intrusions. 

Open Positions

We are looking for self-motivated graduate students, interns, and/or postdocs. Please email me (ysk@dgist.ac.kr) if you are interested in our research. 

InnoCORE Postdoc Opportunity (https://sites.google.com/view/dgist-innocore)

The InnoCORE Research Group at DGIST is inviting exceptional Postdoctoral Researchers to join a globally competitive research team in the emerging field of Bio-Embodied Physical AI.

Research Area: Security- and Trust-Embedded AI

• Secure and Privacy-Preserving AI

• Biosignal Protection and Explainable AI (XAI)

Position Highlights

• Annual Salary: KRW 90M (approx. USD 65,000) (inclusive of statutory employer contributions)

• Performance Incentives: Up to KRW 30M (for the multi-mentorship position)

• Contract: 1-year term, renewable annually

함께 연구를 수행할 박사후 연구원, 대학원생, 학부 인턴을 모집 중에 있습니다. 연구실 지원에 관심이 있는 분들은 Openings을 확인하기 바랍니다.

• 2026학년도 대학원 봄학기 전형 (전기전자컴퓨터공학과, 학제학과 인공지능전공, 학제학과 양자정보과학전공) 

• 비정기 인턴 등 연구실에 관심이 있는 학생들은 ysk@dgist.ac.kr 로 면담 신청 바랍니다.

News

[NEW] InnoCORE 사업 선정: "바이오 체화형 피지컬 AI 연구단" (연구단장) [2025.6.15] [관련기사][관련기사]

[NEW] 자율주행 V2X 보안 과제 신규 선정 (41.25억/3년, 총괄책임자) [2024.7.30] 

[NEW] 2024년 과학기술·정보통신의 날 기념식 국무총리표창 수상 (정보통신유공) [2024.4.22] [관련기사][관련기사]

[NEW] 양자내성암호 전환기술과제 신규 선정 (90억/4년, 총괄책임자) [2024.4.20] 

[NEW] 암호분야 우수학술대회인 ASIACRYPT 2023에 완전동형암호 Hierarchical Rotation Key 논문이 Accept됨(Accept된 논문 중 유일하게 한국에서 제출된 논문) (Cryptology ePrint Archive 2022/532) [2023.9.12] 

[NEW] 인공지능분야 최우수학술대회인 ICML 2022에 완전동형암호 기반 인공지능 보안 논문이 Accept됨(Cryptology ePrint Archive 2021/1688) [2022.5.15] 

[NEW] 암호분야 최우수학술대회인 EUROCRYPT 2022에 완전동형암호 Bootstrapping 논문이 2년 연속 Accept됨(Cryptology ePrint Archive 2020/1549) [2022.2.2] 

[NEW] 암호분야 최우수학술대회인 EUROCRYPT 2021에 완전동형암호 Bootstrapping 논문이 Accept됨(Cryptology ePrint Archive 2020/552) [2021.1.25] Accept 된 논문 중 유일하게 한국에서 제출된 논문. Bootstrapping의 정확도를 높인 기술로 암호화된 데이터의 Training 및 Inference가 가능하여 Privacy Preserving Machine Learning을 위한 기반 기술을 확보함 [관련기사]

[NEW] 양자내성암호 최적 구현 기사 [관련기사]