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The online lottery system can be implemented in a secure manner through four desirable properties which include accuracy, privacy, transparency, and verifiability. The system is accurate since it is not possible for the sold lottery numbers to be modified. The privacy of the player is protected since no personally identifiable information is included in the lottery information. The system is transparent since it does not allow anyone to obtain the information of sold lottery numbers or to add new lottery tickets after the drawing. Finally, the system is verifiable since the buyer can claim the winning number even the data in the system is completely destroyed. Therefore, through this system, the lottery operation of the government can be transparent.