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At present a considerable amount of training courses are being held accompanied by the issuance of certificates. Unfortunately there is no proper means of verifying these digital certificates. To overcome this issue a new system must be implemented wherein customized digital certificates can be produced. In this system users can securely store their certificates in a digital locker while other organizations can validate them. This can be achieved through the use of open-source software and blockchain technology. The prevalence of counterfeit certificates in our society has become a significant and troublesome issue. It has now become a lucrative business driven by the demand for employment opportunities. As a result legitimate graduates with authentic credentials are often overlooked for job opportunities. To combat this problem various researchers have proposed a certificate authentication system that ensures tamper-proof and reliable management of digital certificates. Ultimately this will benefit both the issuers and recipients of these certificates.
R et al. (Sun,) studied this question.