A Safe Netdisk's Design And Implementation

Network disk is launched an online storage service by the Internet company and provided users with file storage,access,backup,sharing,document management and other functions.Users can take network drive as a hard disk or on a network,U-disk.Whether you are at home or any other place,you can manage and edit the network disk files as long as you connect to the Internet.However,there are dysfunction,large differences,security,privacy issues between different companies.And they can not effectively achieve safe storage resource management and sharing et al other shortcomings.This paper uses encryption technology to design and develop an approach to the advanced encryption,take decryption as guidance,organize resources effectively and safely to achieve security management and data sharing.Platform improves functionality and ease of operation,greatly reducing the different companies in the security maintenance costs.This article focuses on solving the traditional network disk encryption,decryption inconvenient problem of inadequate security.The main works are as follows:For the network security weaknesses of traditional dish,the paper analysis needs and design system,giving secure network disk system security model which based on hybrid encryption and decryption.Using application encryption,decryption technology,jsp technology,oracle databases and programming to achieve a secure network disk system security.Testing the system-related functional modules,and do validate the analysis to the results and test run.This Safe Net disk enables users to login in their network spaces after strict authentication,and then safely upload and download files as long as they have access to the Internet.Before uploading,the client encrypts the files.And after downloading,the client decrypts the encrypted files.During the authentication,the important information such as the user's private key needs not to be transmitted through the Internet,which can effectively prevent the listening from the network.The authentication can also verify the integrity of the information,as well as prevent playback and dictionary attack.While registing,the ActiveX running by the client generate ECC public and private key.During the authentication,the user must enter the correct private key,then he can login in the Safe Net disk successfully.While operating the files,the encryption and decryption are both undertaken at the client side.There will be no private key being transmitted through the Internet.Even the server can not decrypt the files.The operation of the system become more concise compared with the traditional network disk system operations,secure network security disk platform has the following characteristics:a good design structure,simple and perfect operating functions.This can facilitate users to upload and download in all aspects operation,reducing the complexity of the operation.