Why digital certificate?

Published: 25 January 2018
on channel: Sunny Classroom

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Digital Signature:
   • What is digital signature?

Digital signature is used for authentication, non-repudiation and data integrity, but there is one weakness of digital signature alone: man-in-the-middle attack.

Digital certificates are electronic credentials issued by a trusted third party. A digital certificate not only verifies the identity of the owner, but also verifies that the owner owns the public key.

In this video, I will demonstrate why digital signature has weakness and how digital certificate comes in place to make sure digitally signed document must come originally from the claimed sender.

Advanced Cryptography:
   • What is digital signature?

Playlist: Basic Cryptography
   • Private Key Encryption (Symmetric Key...

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