K Nearest Neighbour Classification over Encrypted Relational Data

Information Technology

Data Mining is widely used in bank, medical, scientific areas. In Data mining, classification is used. Many solutions are derived for classification problem under different models, because many problems occurred regarding privacy issues. Users can outsource their data, in encrypted form, as well as the data mining tasks to the cloud because cloud computing becomes popular. Previous privacy-preserving classification techniques can not be used, because data on cloud is encrypted. In this paper classification over encrypted data is concerned firstly. In this paper a secure and simple k-NN classifier over encrypted data with paillier cryptosystem in the cloud is determined. Paillier cryptosystem is secured as compare to RSA.This protocol protects the confidentiality, privacy and hides the data access patterns.

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