Preventing the Data Over-Collection in Smart City via Secure Protection

The smart city is meant to be the next generation of Urbanization. The most arduous challenge about the cyber security and privacy of smart city to ensure the precise data secure. The smart device not only stores users' data but also generates data. These data may consist of users' accounting numbers and passwords, emails and house addresses, photos, and other kinds of precise data. The most serious possible security hazard is that applications collect data more than enough on its original function while in permission scope, which to call it data over-collection. Cloud services are in charge of managing users' data and provide fine-grained access control and encryption/ decryption services. To solve the problem of quantifying security risk to score application mainly focusing about the data over-collection behaviors. To prove that the framework improves the security of Smartphone's significantly. Keyword: