E-DOC Wallet Using Blockchain

Abstract

As technology develops, there arises a need to take control of personal data. One of the most important benefits of block chain is that, it can store data permanently and in an immutable manner. And another one aspect is that block chain is decentralized i,e there is no central hub to store data. Using this technology to store important documents of an individual makes the documents more secured and they cannot be tampered once uploaded and the individual can have the advantage of accessing their documents anytime without the need of middle men. Smart contracts are used to exchange data in a transparent and in a trusted manner. Documents of the users are converted into e-docs along with a unique quick response code. Each individual's code forms a block with a specific hashed value and helps in forming a continuous blocks. These blocks cannot be altered once formed and hence it is not possible to retrieve the documents unless the user's permission. It is secured using the user's fingerprint which is dissolved into text using steganography. Thus the documents are kept secure and can be used whenever needed without any constraints and can also be never tampered or manipulated.