Wonhee Cho

Wonhee Cho

PhD candidate in Seoul National University

Publications

Authors are listed in alphabetical order by last name, unless an asterisk(*) is indicated.

Conference

  1. “Fast and accurate homomorphic softmax evaluation”
    • Wonhee Cho, Guillaume Hanrot, Taeseong Kim, Minje Park, and Damien Stehlé
    • ACM SIGSAC Conference on Computer and Communications Security (CCS 2024) [paper]
  2. “Accelerating Homomorphic Comparison Operations for Thresholding Using an Asymmetric Input Range and Input Scaling”
    • *Sunwoong Kim, Wonhee Cho
    • Great Lakes Symposium on VLSI 2024 (GLSVLSI 2024) [paper]
  3. “Homomorphic Multiple Precision Multiplication for CKKS and Reduced Modulus Consumption”
    • Jung Hee Cheon, Wonhee Cho, Jaehyung Kim, and Damien Stehlé
    • ACM SIGSAC Conference on Computer and Communications Security (CCS 2023) [paper]
  4. “Meta-bts: Bootstrapping precision beyond the limit”
    • Youngjin Bae, Jung Hee Cheon, Wonhee Cho, Jaehyung Kim, and Taekyung Kim
    • ACM SIGSAC Conference on Computer and Communications Security (CCS 2022) [paper]
  5. “Adventures in crypto dark matter: Attacks and fixes for weak pseudorandom functions”
    • Jung Hee Cheon, Wonhee Cho, Jeong Han Kim, and Jiseung Kim
    • IACR International Conference on Public-Key Cryptography (PKC 2021) [paper]
  6. “Hardware architecture of a number theoretic transform for a bootstrappable RNS-based homomorphic encryption scheme”
    • *Sunwoong Kim, Keewoo Lee, Wonhee Cho, Yujin Nam, Jung Hee Cheon, and Rob A Rutenbar
    • IEEE 28th Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM 2020) [paper]
  7. “FPGA-based accelerators of fully pipelined modular multipliers for homomorphic encryption”
    • *Sunwoong Kim, Keewoo Lee, Wonhee Cho, Jung Hee Cheon, and Rob A Rutenbar
    • International Conference on ReConFigurable Computing and FPGAs (ReConFig 2019) [paper]
  8. “Statistical zeroizing attack: cryptanalysis of candidates of BP obfuscation over GGH15 multilinear map”
    • Jung Hee Cheon, Wonhee Cho, Minki Hhan, Jiseung Kim, and Changmin Lee
    • Annual International Cryptology Conference (CRYPTO 2019) [paper]

Journal

  1. “Improved Universal Thresholdizer from Iterative Shamir Secret Sharing”
    • Jung Hee Cheon, Wonhee Cho, and Jiseung Kim
    • Journal of Cryptology, 2025
    • Eprint, [paper]
  2. “Secure tumor classification by shallow neural network using homomorphic encryption”
    • *Seungwan Hong, Jai Hyun Park, Wonhee Cho, Hyeongmin Choe, and Jung Hee Cheon
    • BMC genomics, 2022 [paper]
  3. “Adventures in crypto dark matter: attacks, fixes and analysis for weak pseudorandom functions”
    • Jung Hee Cheon, Wonhee Cho, Jeong Han Kim, and Jiseung Kim
    • Designs, Codes and Cryptography, 2022 [paper]
  4. “Ultra-Fast Homomorphic Encryption Models enable Secure Outsourcing of Genotype Imputation”
    • *Miran Kim, *Arif Harmanci, Jean-Philippe Bossuat, Sergiu Carpov, Jung Hee Cheon, Ilaria Chillotti, Wonhee Cho, David Froelicher, Nicolas Gama, Mariya Georgieva, Seungwan Hong, Jean-Pierre Hubaux, Duhyeong Kim, Kristin Lauter, Yiping Ma, Lucila Ohno-Machado, Heidi Sofia, Yongha Son, Yongsoo Song, Juan Troncoso-Pastoriza, and Xiaoqian Jiang
    • Cell Systems, 2021 [paper]
  5. “Extension of simultaneous Diophantine approximation algorithm for partial approximate common divisor variants”
    • Wonhee Cho, Jiseung Kim, and Changmin Lee
    • IET Information Security, 2021 [paper]
  6. “(In) security of concrete instantiation of Lin17’s functional encryption scheme from noisy multilinear maps”
    • Wonhee Cho, Jiseung Kim, and Changmin Lee
    • Designs, Codes and Cryptography, 2021 [paper]
  7. “Algorithms for CRT-variant of approximate greatest common divisor problem”
    • Jung Hee Cheon, Wonhee Cho, Minki Hhan, Jiseung Kim, and Changmin Lee
    • Journal of Mathematical Cryptology, 2020 [paper]

Manuscript

  1. (In) Security of Threshold Fully Homomorphic Encryption based on Shamir Secret Sharing
    • Wonhee Cho, Jiseung Kim, and Changmin Lee
  2. A Distinguishing Attack and a Correlation Attack on a Reduced Variant of SNOW 3G
    • Jung Hee Cheon, Wonhee Cho, and Minsik Kang
  3. Note on IND-CPA+ Security of CKKS
    • Jung Hee Cheon, Wonhee Cho, and Duhyeong Kim
  4. Efficient Homomorphic Max algorithm for Multivariables
    • Jung Hee Cheon, Wonhee Cho, Seungwan Hong, and Chaewon Kim