Privacy Preservation for File Sharing Scheme Using Secured File Block ID with Binary Trees

Abstract

Privacy, the security of information from unauthorized access is gradually needed on the Internet and yet progressively more important while each user acts as both consumer and producer. The lack of privacy is mainly employed for peer-to peer file sharing applications, in which users in the network shared file with each other and their actions are easily monitored by the unauthorized users. Several techniques have been presented to monitor the unauthorized access of files in the network. Our previous work described the secured file sharing using cryptographic key value pairs which shares the file among the users based on the key location of the file. But it does not provide an efficient privacy preservation scheme for file sharing concepts. To enhance the study progress, in this study, we proposed the design and implementation of secured file sharing through online by assigning a secured file block and a participant id that provides users with explicit, configurable control over their file. A File Security Packet (FSP) is developed to maintain a collection of users’ file assigned with its respective file and block id without disclosing the users’ privacy data to the public. Then the file sharing is done with file block id relating to the participant id using binary trees which represents the exact location of data present in the file to be shared. Binary trees keeps all those files to be shared with a relevant file and block id for each users’ file in a form of tree pattern framework. The proposed secured file sharing using B-tree is optimized for systems that read and write large blocks of files in a chronological manner. An experimental evaluation is done with several user clients in terms of communication key round, number of participants and the size of the file for exchange to estimate the performance of the proposed privacy of file sharing using secured file block id using with Binary Trees [PFSBT].