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Authors:
James F. Kurose, Keith W. Ross
Chapter:
Security In Computer Networks
Exercise:
Problems
Question:20 | ISBN:9780132856201 | Edition: 6

Question

In Section 8.6.1, it is shown that without sequence numbers, Trudy (a woman- in-the middle) can wreak havoc in an SSL session by interchanging TCPsegments. Can Trudy do something similar by deleting a TCP segment? What does she need to do to succeed at the deletion attack? What effect will it have?



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Answer

Trudy is able to remove the data sent between Alice and Bob.

Reason is that  t is shown that without sequence numbers, Trudy (a woman- in-the middle) can wreak havoc in an SSL session by interchanging TCPsegments. In this case replace a dummy packet is repalced in the deleted packet and sent to some one.

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