DIGICERT: A Secured Digital Certificate Application using Blockchain through Smart Contracts

Abstract

Deception of Certificates is the major issue that is faced by the educational sector. In order to prevent forgery of certificates and to provide a secure certificate verification environment an authenticated system application is developed using blockchain with smart contracts. The immutability property of blockchain prevents the data stored from being manipulated and helps in implementing a verification system. The system generates a new block for every user in the blockchain. These blockchain are replicated across all the nodes involved in a Peer-to-Peer network and thus it improves the reliability of the system. Whenever a user is validated, their certificates are digitally provided by the system to the user along with a Quick Response code. This helps in sharing of certificates between the employers. The authenticity of certificates is improved by embedding the certificates with imperceptible watermark using the alpha blending process. This helps to avoid various attacks at different phases of certificate distribution.