ISRO | ISRO CS 2017 – May | Question 36

Pretty Good Privacy (PGP) is used in
(A) Browser security
(B) FTP security
(C) Email security
(D) None of the above


Answer: (C)

Explanation: PGP is a an encryption phenomena that provide cryptographic privacy and authentication for data communication over e-mails. It generates a public key to encrypt a message at sender’s end and private key to decrypt a message at receiver’s end allowing us to send files and messages securely over internet. OpenPGP is an email encryption standard.
It uses Digital Signatures to provide authentication and integrity checking basically to check if the message is actually sent by the person or entity claimed to be the sender.
So, option(C) is correct.

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