PGP

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Which of the following best describes PGP?

A collection of software tools for confidentiality and authentication (correct)
A social media platform
A video game
A search engine

Who created PGP?

Mark Zuckerberg
Bill Gates
Steve Jobs
Phil Zimmerman (correct)

What is OpenPGP?

A commercial version of PGP
A social media platform
A specification for cryptographic applications developed by IETF (correct)
A search engine

What is GnuPG?

GNU Privacy Guard Equivalent and compatible with PGP (D) Signup and view all the answers

What is the purpose of creating public key/private key pair in PGP/GnuPG?

To enable secure communication with others (C) Signup and view all the answers

What is the purpose of passphrase in PGP/GnuPG?

To protect the private key (A) Signup and view all the answers

What is the purpose of symmetric cryptosystem in secure e-mail?

To encrypt the plaintext with a random key K (A) Signup and view all the answers

What is the purpose of public key cryptosystem in secure e-mail?

To encrypt the symmetric key K (A) Signup and view all the answers

What is the purpose of digital signatures in PGP?

To verify the authenticity of the message (D) Signup and view all the answers

What is the purpose of timestamps in PGP?

To authenticate time (A) Signup and view all the answers

What is the conclusion about PGP?

PGP was revolutionary when it was introduced but lacks modern trends in crypto protocols (A) Signup and view all the answers

What is the license of GnuPG?

GNU General Public License (A) Signup and view all the answers

What are some of the software tools included in PGP?

confidentiality (encryption) and authentication (digital signatures) Signup and view all the answers

Who created PGP and when?

Phil Zimmerman in the early nineties Signup and view all the answers

What is the current status of free versions of PGP?

some free versions may still be available, but mainly replaced by GnuPG Signup and view all the answers

Who currently produces commercial versions of PGP?

Symantec (previously from PGP Corporation, Network Associates/McAfee) Signup and view all the answers

What is OpenPGP and who developed it?

a specification (standard) for cryptographic applications developed by IETF (Internet Engineering Task Force, <a href="http://www.ietf.org">www.ietf.org</a> ) as RFC 4880 (previously RFC-2440) Signup and view all the answers

What is the difference between PGP and GnuPG?

GnuPG is the GNU Privacy Guard equivalent and compatible with PGP Signup and view all the answers

What does OpenPGP keys contain?

the public key and information about the owner, as well as signatures of the key owner and of other users Signup and view all the answers

What is the purpose of a passphrase in PGP/GnuPG?

to protect the private key Signup and view all the answers

What is the purpose of compressing plaintext before encryption in secure e-mail?

to decrease redundancy Signup and view all the answers

What is the purpose of a timestamp in PGP?

for authenticating time Signup and view all the answers

What are some modern end-to-end encryption protocols for secure messaging?

e.g. Signal (also used by WhatsApp) Signup and view all the answers

What is the license of GnuPG?

Free software under GNU General Public Licence Signup and view all the answers

PGP

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Questions and Answers

Which of the following best describes PGP?

Who created PGP?

What is OpenPGP?

What is GnuPG?

What is the purpose of creating public key/private key pair in PGP/GnuPG?

What is the purpose of passphrase in PGP/GnuPG?

What is the purpose of symmetric cryptosystem in secure e-mail?

What is the purpose of public key cryptosystem in secure e-mail?

What is the purpose of digital signatures in PGP?

What is the purpose of timestamps in PGP?

What is the conclusion about PGP?

What is the license of GnuPG?

What are some of the software tools included in PGP?

Who created PGP and when?

What is the current status of free versions of PGP?

Who currently produces commercial versions of PGP?

What is OpenPGP and who developed it?

What is the difference between PGP and GnuPG?

What does OpenPGP keys contain?

What is the purpose of a passphrase in PGP/GnuPG?

What is the purpose of compressing plaintext before encryption in secure e-mail?

What is the purpose of a timestamp in PGP?

What are some modern end-to-end encryption protocols for secure messaging?

What is the license of GnuPG?

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