Authentication using blockchain

Abstract

While password-based authentication is widely used by many applications today, it has grave vulnerabilities that can make our devices and accounts prone to malicious attacks. 2-factor authentication (2FA) and Multi-factor authentication (MFA) were introduced to increase the security of the generic password-based authentication and they did enhance the security of the credential-based system by using second or multiple factors to provide additional security. However, even though the intro duction of the second factor increased the security, this approach has weaknesses as well: there are many methods through which a hacker can get access to our do main, such as SIM swap hacking, phishing attacks, ambush attacks during password recoveries, or One Time Password (OTP)-based attacks. Instead of addressing the security problems of 2FA or MFA, we aim to strengthen the security of the generic password-based authentication system by adding a layer of security to the existing first factor. In this process, the user will log in using their credentials and on suc cessful verification of the password, the blockchain-based authentication will begin. Lastly, the Di