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Ciphertext-Ciphertext Matrix Multiplication: Fast for Large Matrices
                
                    - 2025.06, Tech Talk at FHE.org Meetup, Virtual [slides] [video]
 
                    - 2025.06, Tech Talk, FHE.org Meetup, 온라인 [slides] [video]
 
                    - 2025.05, EUROCRYPT 2025, Madrid, Spain [slides] [video]
 
                    - 2025.05, EUROCRYPT 2025, 마드리드, 스페인 [slides] [video]
 
                    - 2025.02, Invited talk at Seoul National University, Virtual
 
                    - 2025.02, 초청강연, 서울대학교, 온라인
 
                
              
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Plaintext-Ciphertext Matrix Multiplication and FHE Bootstrapping: Fast and Fused
                
                    - 2025.02, Invited talk at École polytechnique, France
 
                    - 2025.02, 초청강연, École Polytechnique, 프랑스
 
                    - 2024.08, CRYPTO 2024, UC Santa Barbara, USA [slides] [video]
 
                    - 2024.08, CRYPTO 2024, UC Santa Barbara, 미국 [slides] [video]
 
                
              
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HERMES: Efficient Ring Packing using MLWE Ciphertexts and Application to Transciphering
                
                    - 2024.01, Crypto Winter Camp 2024, Vivaldi Park, Korea
 
                    - 2024.01, 암호겨울캠프 2024, 비발디 파크, 한국
 
                    - 2023.12, Invited talk at Dongguk University, Korea
 
                    - 2023.12, 초청강연, 동국대학교, 한국
 
                    - 2023.08, CRYPTO 2023, UC Santa Barbara, USA [slides] [video]
 
                    - 2023.08, CRYPTO 2023, UC Santa Barbara, 미국 [slides] [video]
 
                
               
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Tree-based Lookup Table on Batched Encrypted Queries using Homomorphic Encryption
                
                    - 2022.06, Tech talk at CryptoLab, Korea
 
                    - 2022.06, Tech talk, 크립토랩, 한국
 
 
                    - 2022.04, KMS Spring Meeting, Virtual
 
                    - 2022.04, 대한수학회 봄 연구발표회, 온라인
 
               
               
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Efficient Homomorphic Evaluation on Large Intervals
                
                    - 2022.01, Crypto Winter Camp 2022, Virtual
 
                    - 2022.01, 암호겨울캠프 2022, 온라인
 
                    - 2020.10, KMS Fall Meeting, Virtual
 
                    - 2020.10, 대한수학회 가을 연구발표회, 온라인
 
                
               
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Towards a Practical Cluster Analysis over Encrypted Data
                
                    - 2019.10, KMS Fall Meeting, Hong-ik University, Korea
 
                    - 2019.10, 대한수학회 가을 연구발표회, 홍익대학교, 한국
 
                    - 2019.08, SAC 2019, University of Waterloo, Canada [slides]
 
                    - 2019.08, SAC 2019, 워털루대학교, 캐나다 [slides]