@article{ART003259705},
author={Woo-Hyuk Jang and Keun-Ho Lee},
title={An Efficient Homomorphic Encryption Scheme for  Privacy-Preserving Electronic Health Records (EHRs)},
journal={Journal of Internet of Things and Convergence},
issn={2466-0078},
year={2025},
volume={11},
number={5},
pages={18}
						
					
						
							TY - JOUR
AU - Woo-Hyuk Jang
AU - Keun-Ho Lee
TI - An Efficient Homomorphic Encryption Scheme for  Privacy-Preserving Electronic Health Records (EHRs)
JO - Journal of Internet of Things and Convergence
PY - 2025
VL - 11
IS - 5
PB - The Korea Internet of Things Society
SP - 18
EP - 
SN - 2466-0078
AB - Electronic health records (EHRs) are medical data including patients' medical information and have important value in public health and clinical research. However, due to regulations such as the Personal Information Protection Act, GDPR, and HIPAA, researchers cannot directly access the original data, limiting their use. Existing studies have applied homogeneous  encryption  (HE)  to  enable group-level analysis, but their practicality has been limited due to the high amount of computation. To solve this problem, this study proposes a technique that extracts only the disease code that actually appeared in the recruitment group, constructs the same length vector with zero padding, and applies the Random Slot Permutation (RSP) method. This blocks statistical pattern exposure while ensuring HE operation compatibility, and enables researchers to efficiently  aggregate  desired  statistics  using mapping slots. The proposed technique ensures privacy while also supporting simple and practical collective data analysis.
KW - Electronic Health Records;Homomorphic Encryption;Privacy;Zero Padding;Random Slot Permutation
DO - 
UR - 
ER - 
						
					
						
							Woo-Hyuk Jang and Keun-Ho Lee. (2025). An Efficient Homomorphic Encryption Scheme for  Privacy-Preserving Electronic Health Records (EHRs). Journal of Internet of Things and Convergence, 11(5), 18.
						
					
						
							Woo-Hyuk Jang and Keun-Ho Lee. 2025, "An Efficient Homomorphic Encryption Scheme for  Privacy-Preserving Electronic Health Records (EHRs)", Journal of Internet of Things and Convergence, vol.11, no.5 18. 
						
					
						
							Woo-Hyuk Jang, Keun-Ho Lee "An Efficient Homomorphic Encryption Scheme for  Privacy-Preserving Electronic Health Records (EHRs)" Journal of Internet of Things and Convergence 11.5 18 (2025) : 18.
						
					
						
							Woo-Hyuk Jang, Keun-Ho Lee. An Efficient Homomorphic Encryption Scheme for  Privacy-Preserving Electronic Health Records (EHRs).  2025; 11(5), 18. 
						
					
						
							Woo-Hyuk Jang and Keun-Ho Lee. "An Efficient Homomorphic Encryption Scheme for  Privacy-Preserving Electronic Health Records (EHRs)" Journal of Internet of Things and Convergence 11, no.5 (2025) : 18.
						
					
						
							Woo-Hyuk Jang; Keun-Ho Lee. An Efficient Homomorphic Encryption Scheme for  Privacy-Preserving Electronic Health Records (EHRs). Journal of Internet of Things and Convergence, 11(5), 18. 
						
					
						
							Woo-Hyuk Jang; Keun-Ho Lee. An Efficient Homomorphic Encryption Scheme for  Privacy-Preserving Electronic Health Records (EHRs). Journal of Internet of Things and Convergence. 2025; 11(5) 18. 
						
					
						
							Woo-Hyuk Jang, Keun-Ho Lee. An Efficient Homomorphic Encryption Scheme for  Privacy-Preserving Electronic Health Records (EHRs).  2025; 11(5), 18. 
						
					
						
							Woo-Hyuk Jang and Keun-Ho Lee. "An Efficient Homomorphic Encryption Scheme for  Privacy-Preserving Electronic Health Records (EHRs)" Journal of Internet of Things and Convergence 11, no.5 (2025) : 18.