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information security planningi research paperyou will prepare a research paper that is 4 pages in length
problem 1 - general questions a which of the following is considered the first line of defense against human behavior
decode the message jpeg show that the formula b c - a x is a reasonable one for jpeg by forming linear approximations
single-side error- a source x sends 0s and 1s with probabilities pi and 1-pi respectively to a receiver y the 1s are
one error only-consider a source x that has two symbols these are coded in binary as 00 and 11 respectively each x
function suppose that the source x is mapped into the source y having values yjnbsp gxi for xinbspisin xa show that hy
binary erasure channel-consider a channel in which some bits are lost during transmission the receiver knows which bits
rectangular code-show that the parity bit in the lower-left-hand corner of the rectangular code is consistent in both
isbn correction find the missing digit in the isbn numbers belowa 0-385-49531-b 0-201-1794-2isbn codea show that the
syndrome parity bits derive the formulas for the parity bits x5 x6 x7 of the hamming 7 4 codehamming code error a
code shortening suppose a binary code of length n has m words and a minimum distance d-an n m d code the set can be
homophonic cipher- suppose that a language using an alphabet of j letters has the property that the i-th letter has a
running cipher-one method for increasing the security of vigenegravere-type encryption is to use a running text as key
how big what is the unicity point of a one-time pad chessboard unicity a transposition code is devised that permutes
secure condition-show that a necessary and sufficient condition for perfect security is hcm hc for every set of
hill cipher hill devised a cipher that extends both transposition and linear ciphers it has the formwhere a is an n
affine ciphers- let a be an integer between 1 and 26 and let x be the integer corresponding to one of the 26 letters of
vigenegravere and transpositionsuppose a vigenegravere cipher is constructed with a key that is three letters long the
beaufort cipher- let k k1 k2 kn be a keyword of length n and let p p1 p2 pn be a plaintext message of length n
transposition cipher-consider a transposition cipher that uses a five by five matrix and permutes the columns before
find an inverse find the inverse of 16 mod 101 affine code inverse consider the affine code that transforms a message x
q1 a briefly explain how an integrity check value icv may be used in network communication to detect errorsb when using
what factors might cause peak loads in a networkhow can a network manager determine if they are important and how are
what is a disaster recovery firm when and why would you establish a contract with them what is online backuppeople who
1 there are many components in a typical security policy describe three important components what are three major