Data Privacy Protection Utilizing Homomorphic Encryption Techniques

In the current era with the rapid development of the Internet, although a variety of technologies have offered convenience to people's lives, numerous problems have arisen regarding the security of individual and collective data, Problems such as data privacy leakage occur continuously. The content of this review is data privacy protection based on homomorphic encryption. Firstly, the basic principle and formula of homomorphic encryption are briefly introduced. Then, the homomorphic encryption-based data privacy protection approach is developed in response to the importance of safeguarding data privacy. In the case of partially homomorphic encryption, the article refers to such homomorphic encryptions as PPDM, STHE, and ECC. In fully homomorphic encryption, such as DBMS, HTM-FHE, and MKFHE, are mentioned. Under the current homomorphic encryption technology, the performance of data protection has witnessed a remarkable improvement; however, there exist numerous deficiencies. The majority of algorithms are relatively complex and consume a considerable number of resources. The aim of this review lies in facilitating readers' prompt comprehension of the existing technologies and development status in this domain, as well as the merits and demerits of current technologies.