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Security in Computing Chapter 12, Cryptography Explained Part 7

Security in Computing Chapter 12, Cryptography Explained Part 7. Summary created by Kirk Scott. This set of overheads corresponds to section 12.4 in the book The overheads for Chapter 12 roughly track the topics in the chapter Keep this in mind though:

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Overview

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Exercise 1

Exercise 1. Consider a language with the following tokens and token classes: ident ::= letter ( letter|digit )* LT ::= "<" GT ::= ">" shiftL ::= "<<" shiftR ::= ">>" dot ::= "." LP ::= "(" RP ::= ")"

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Example:

Example:. Given the following CFG S ? X | Y X ? aXb | aX | a Y ? aYb | Yb | b (1) L(G) = ? (2) Design an equivalent PDA for it. ? ={a, b}. Solution: L(S). S ? X | Y X ? a X b | a X | a Y ? a Y b | Y b | b.

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