Bob has received a message from Alice. The message is encrypted with Bob's public key (that Alice has obtained from a Certification Authority (CA)). Bob can read the message after decrypting it with his private key. What does Bob and Alice now know for sure? Vælg én svarmulighed O Only Bob has read the message O Only Alice could have sent the message O Only Bob has read the message and only Alice could have sent it O It cannot be established from the text, what they can be sure of

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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hey bartleby. which one of the choices is correct in this question? question is attached in the picture. 

Bob has received a message from Alice. The message is encrypted with Bob's public key (that Alice has obtained from a Certification Authority (CA)). Bob
can read the message after decrypting it with his private key. What does Bob and Alice now know for sure?
Vælg én svarmulighed
O Only Bob has read the message
O Only Alice could have sent the message
O Only Bob has read the message and only Alice could have sent it
It cannot be established from the text, what they can be sure of
Transcribed Image Text:Bob has received a message from Alice. The message is encrypted with Bob's public key (that Alice has obtained from a Certification Authority (CA)). Bob can read the message after decrypting it with his private key. What does Bob and Alice now know for sure? Vælg én svarmulighed O Only Bob has read the message O Only Alice could have sent the message O Only Bob has read the message and only Alice could have sent it It cannot be established from the text, what they can be sure of
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