Blockchain Technology for Decentralized Data Storage on P2P Network Akshay Raul, Shwetha Kalyanaraman, Kshitij Yerande and Kailas Devadkar Contents 1 Introduction ............................................................... 102 1.1 Blockchain Introduction .............................................. 102 2 Data Distribution ........................................................... 103 3 Proposed Scheme .......................................................... 103 4 Mining ................................................................... 106 5 Experimental Analysis ...................................................... 106 5.1 Communication Through Metadata Server on the Internet .................. 106 5.2 Mesh Network in a LAN .............................................. 107 6 Results ................................................................... 108 6.1 Sending Files Using Blockchain Metadata Server as a Mediator ............. 108 6.2 Sending Files Directly to Peers and Storing Metadata on Blockchain Server . . . 109 6.3 AES File Encryption Time ............................................ 109 6.4 Mining Rate ........................................................ 109 7 Conclusion ................................................................ 109 References ..................................................................... 110 Abstract Blockchain is a rapidly growing concept that can be used to store a burgeoning list of records in blocks. There is an inundation of data daily where storage becomes a cardinal problem. To maintain the list of records and by not compromising on storage space, blockchain can be adopted by storing data on a peer-to-peer network. Unutilized storage from another peer can be used to store data. Data stored on another device will be subjected to high security by encryption to abstract data from device owner. This paper uses the concept of blockchain to A. Raul (B ) · S. Kalyanaraman · K. Yerande · K. Devadkar Department of Information Technology, Sardar Patel Institute of Technology, Andheri, Mumbai, India e-mail: raulakshay@gmail.com S. Kalyanaraman e-mail: shwethakraman57@gmail.com K. Yerande e-mail: kshitijyerande@gmail.com K. Devadkar e-mail: kailas_devadkar@spit.ac.in © Springer Nature Singapore Pte Ltd. 2019 J. Wang et al. (eds.), Soft Computing and Signal Processing, Advances in Intelligent Systems and Computing 900, https://doi.org/10.1007/978-981-13-3600-3_10 101