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Computer Engineering
Alice receives an email, apparently signed using a PGP private key by Bob. she does not know Bob’s public key, but she knows and has signed the public keys of Carol and -Dave. Dave has signed the keys of Alice, Bob and Eve. Eve has signed Carols and Dave’s keys. Alice has “complete trust” in Dave, and “part trust” in carol and Eve. Should Alice accept the signature on Bob’s email? Explain your answer, specifying any assumptions you make about PGP.

Alice receives an email, apparently signed using a PGP private key by Bob. she does not know Bob’s public key, but she knows and has signed the public keys of Carol and -Dave. Dave has signed the keys of Alice, Bob and Eve. Eve has signed Carols and Dave’s keys. Alice has “complete trust” in Dave, and “part trust” in carol and Eve. Should Alice accept the signature on Bob’s email? Explain your answer, specifying any assumptions you make about PGP.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Alice receives an email, apparently signed using a PGP private key by Bob. she does not know Bob’s public key, but she knows and has signed the public keys of Carol and -Dave. Dave has signed the keys of Alice, Bob and Eve. Eve has signed Carols and Dave’s keys. Alice has “complete trust” in Dave, and “part trust” in carol and Eve. Should Alice accept the signature on Bob’s email? Explain your answer, specifying any assumptions you make about PGP. 

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