3.6.1 Getting User grid cell information
Android Mobile application will send the user grid cell information to the server and the security key to decrypt the data. We will be using Advanced Symmetric encryption key. Function: user will search for information asking for the Point of interest say a shopping mall nearby or any route from source to destination The location provider will return the point of interest to the user queries by displaying nearby attraction for given query. The server will return the data based on search with its gps coordinates. The client will send a request using the server’s cell information asking for the Point of interest say a shopping mall nearby. With the knowledge about which cells are contained in the private grid, and the knowledge of the key that encrypts the data in the cell, the user can initiate a private information retrieval protocol with the location server to acquire the encrypted POI data. Assuming the server has initialized the integer e, the user ui and LS can engage in the following private information retrieval protocol using the ID, obtained from the execution of the previous protocol, as input. The ID allows the user to choose the associated prime number power πi, …show more content…
Further the connection between server and client will be secure. The request sent by the client will use the Advanced Symmetric encryption key to encrypt all the data. Further the connection between server and client will be secure. The privacy of the user is maintained by constantly changing the user’s name or pseudonym within some mix-zone. It can be shown that, due to the nature of the data being exchanged between the user and the server, the frequent changing of the user’s name provides little protection for the user’s privacy. A more recent investigation of the mix-zone approach has been applied to road