In literature, various authentication protocols are developed using various cryptographic techniques such as RSA cryptosystem, ECC cryptosystem and so on. What are the most practical application areas of such protocols?
TLS in your browser is built on authentication (at least of the server), every time you log in with a password to a web service or locally it is authentication of the client as well. Every time you use password and a second factor like a one-time device that puts in a few numbers to report to a server or a ubkey authentication using a public key from a USB. These are all authentication used all the time...on the web, locally, and to apps on your phone. Authentication is teh key to having an account in anything related to computing and connecting to the right servers!!!
In era of internet of things, as long as you want to access some server to obtain private data, you must be authenticated by server.
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