Seongkwang Kim (김성광)

Professional Experience

  • Senior Engineer in Samsung SDS, Seoul, Korea (Mar 2022 - Present)

Education

  • Ph.D. in GSIS, KAIST (Mar 2018 - Feb 2022)
    • Research area: Cryptography
    • Advisor: Jooyoung Lee
  • M.S. in Mathematical Sciences, KAIST (Mar 2016 - Feb 2018)
    • Research area: Cryptography
    • Advisor: Sanggeun Han
  • B.S. in Mathematics, POSTECH (Mar 2012 - Feb 2016)

Patent

  • S. Kim, D. Moon, J. Kwon, S. Lee, J. Lee, M. Son, B. Lee, and J. Ha. "Method for Calculating using an One-Way Function Efficient in a Zero Knowledge Proof, and Apparatus Implementing the Same Method". KR1020220155427. Nov 2022.
  • D. Moon, J. Lee, J. Lee, Y. Son, S. Kim, J. Ha, M. Son, and B. Lee. "Method for Calculating Using a Zero Knowledge Proof-Friendly One-Way Function, and Apparatus Implementing the Same Method". KR1020220060914. May 2022.
  • J. Lee, D. Moon, H. Yoon, J. Cho, S. Kim, J. Lee, and J. Ha. "Method and Apparatus for Generating Key Stream". US17514135. Oct 2021.
  • J. Lee, D. Moon, H. Yoon, J. Cho, S. Kim, J. Lee, and J. Ha. "Method and Apparatus for Generating Key Stream". KR1020210052987. Apr 2021.
  • D. Moon, H. Yoon, J. Cho, S. Kim, J. Lee, J. Ha, and W. Choi. "Symmetric Cipher Suitable for Homomorphic Encryption Schemes over Modular Domains". KR1020200103887. Aug 2020.
  • J. Lee, H. Yoon, D. Moon, J. Cho, E. Kim, S. Kim, J. Lee, J. Ha, and W. Choi. "Method for Converting Symmetric Key Encryption Based Ciphertext into Homomorphic Encryption Based Ciphertext". KR1020200047585. Apr 2020.

Talk

  • (Invited)"Reducing the Overhead of Approximate Homomorphic Encryption", 2022 KMS Fall Meeting, Oct 2022, Seoul, Korea
  • "Rubato: Noisy Ciphers for Approximate Homomorphic Encryption", Eurocrypt 2022, Jun 2022, Trondheim, Norway, YouTube
  • (Invited)"Transciphering Framework for Approximate Homomorphic Encryption", Dec 2021, CryptoLab, Seoul, Korea
  • "Transciphering Framework for Approximate Homomorphic Encryption", Asiacrypt 2021, Dec 2021, Online, YouTube
  • "Transciphering Framework for Approximate Homomorphic Encryption", Security @ KAIST, Nov 2021, Online
  • "Hybrid Framework for Approximate Computation over Encrypted Data", 2021 KMS Spring Meeting, Apr 2021, Online

Research Project

  • "Research on the security and the efficiency of digital signatures based on zero-knowledge proof", Supported by National Security Research Institute (NSRI), Apr 2021 - Oct 2021
  • "Development of privacy-preserving symmetric key cryptography", Supported by Samsung SDS, Feb 2020 - Nov 2020
  • "Research on symmetric key primitives for homomorphic encryption", Supported by National Security Research Institute (NSRI), Apr 2019 - Oct 2019
  • "Generic attacks on block ciphers", Supported by National Security Research Institute (NSRI), Apr 2018 - Oct 2018
  • "Analysis of LWE problem and its variants", Supported by National Security Research Institute (NSRI), Apr 2017 - Oct 2017

Repository

  • RtF framework with HERA, and Rubato: GitHub

Other Experience

  • Counseling Assistant: Sep 2016 - Feb 2021
  • Teaching Assistant
    • IS511 Information Security: 2018 Spring, 2019 Spring
    • CS204 Discrete Mathematics: 2019 Fall, 2021 Spring
  • Exchange Student at NUS, Singapore: 2015 Spring

Honor & Award

  • The 3rd Award at iDash Competition (Track 4: Secure Record Linkage) in 2022
  • The 2nd Award at Korea Cryptography Contest (hosted by Korea Cryptography Forum) in 2019

Service

  • External Reviewer
    • Asiacrypt 2020
    • Asiacrypt 2019
    • ProvSec 2018
    • ICISC 2018

Language

  • Korean: Native
  • English: Fluent
  • Familiar with C, C++, x86 intrinsics, Python, Mathematica, and LaTeX