Maurice Tutor

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Expertise:
Algebra,Applied Sciences See all
Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 398 Weeks Ago, 3 Days Ago
Questions Answered: 66690
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Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 12 Sep 2017 My Price 5.00

password scheme

33.    Lamport’s one-time password scheme uses the passwords in reverse order. Would it not be simpler to use f (s) the first time, f (f(s)) the second time, and so on?

34.    Is there any feasible way to use the MMU hardware to prevent the kind of overflow at- tack shown in Fig. 9-21? Explain why or why not.

35.    Describe how stack canaries work and how they can be circumvented by the attackers.

36.    The TOCTOU attack exploits race condition between the attacker and the victim. One way to prevent race conditions is make file system accesses transactions. Explain how this approach might work and what problems might arise?

37.    Name a C compiler feature that could eliminate a large number of security holes. Why is it not more widely implemented?

 

Answers

Maurice Tutor
(5)
Status NEW Posted 12 Sep 2017 08:09 PM My Price 5.00

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