Suppose Bob and Alice want to flip a coin over a network and decide who is the winner. Alice proposes the following protocol.

(i) Alice randomly selects a value X in {0,1} (i. e., either 0 or 1).
(ii) Alice generates a 256-bit random symmetric key K.
(iii) Using the AES cipher, Alice computes Y = E(X, R,K), where R consists of 255 randomly selected bits.
(iv) Alice sends Y to Bob.
(v) Bob guesses a value Z £ {0,1} and tells Alice.
(vi) Alice gives the key K to Bob who computes (X, R) = D(Y, K).
(vii) If X = Z then Bob wins, otherwise Alice wins.

This protocol is insecure.

a. Explain how Alice can cheat.
b. Using a cryptographic hash function h, modify this protocol so that Alice cannot cheat.

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solution:

the auto-correct option of the auto-correct tool enables you to add and delete words that do not follow abbreviation rules because:

it is a feature that allows outlook to correct common spelling and typing errors and to replace characters with symbols. we can also can use auto-correct as a shortcut, which means we can type a small string of characters and have those characters replaced by a longer string.

browsing like internet search? don't look at anything stupid. or set up restrictions on ur device's search engine. and if something suspicious comes up don't be dumb and click on it. i hope that's what ur question meant.

the correct answer is "part of speech" if the portion used is "verb, noun" there is another question similar to this with the same question but different portion. the other portion is "hand write" and the correct component for that question is "antonym".

hope this . : )