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The objective of this research was to suggest some simple solution to increase database manipulation security. Based on advantage of Homomorphic encryption, user's data in database is always encrypted by Homomorphic encryption algorithm such as Paillier. User's data is manipulated or processed on many times such as addition, subtraction, multiplication and division. By the advantage of Homomorphic encryption algorithm, user's data were no need to decrypt while it was manipulated thereforedoi:10.3991/ijim.v13i12.11396 fatcat:vluic5ezirahjp5d2uji4gwjty