완전 동형 암호 라이브러리의 성능 분석

According to the coming of era of big data, the importance of data analysis is increasing. This trend emphasizes the importance of managing and controlling confidential information such as personal information derived from nations and companies. Research for ‘Fully Homomorphic Encryption’ which is able to operate encrypted data without decryption to counter this trend is active. In this paper, we compare the features of HElib, TFHE, and SEAL, which are representative libraries of Fully Homomorphic Encryption. We also implement the addition and comparison operations of the encrypted numerical data using the libraries and compare the performance. Based on the results of these features and performance comparison, we provide basic data that can be used for selecting application fields of each library.