Maurice Tutor

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Teaching Since: May 2017
Last Sign in: 398 Weeks Ago, 1 Day Ago
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 27 Jul 2017 My Price 5.00

Vigenère cipher

This problem explores the use of a one-time pad version of the Vigenère cipher. In this scheme, the key is a stream of random numbers between 0 and 26. For example, if the key is 3 19 5..., then the first letter of plaintext is encrypted with a shift of 3 letters, the second with a shift of 19 letters, the third with a shift of 5 letters, and so on.

a. Encrypt the plaintext sendmoremoney with the key stream

9 0 1 7 23 15 21 14 11 11 2 8 9

b. Using the cipher text produced in part (a), find a key so that the cipher text decrypts to the plaintext cashnotneeded. 

Answers

Maurice Tutor
(5)
Status NEW Posted 27 Jul 2017 03:07 PM My Price 5.00

Hel-----------lo -----------Sir-----------/Ma-----------dam----------- Â-----------  -----------Tha-----------nk -----------You----------- fo-----------r u-----------sin-----------g o-----------ur -----------web-----------sit-----------e a-----------nd -----------acq-----------uis-----------iti-----------on -----------of -----------my -----------sol-----------uti-----------on.-----------Ple-----------ase----------- pi-----------ng -----------me -----------on -----------cha-----------t I----------- am----------- on-----------lin-----------e o-----------r i-----------nbo-----------x m-----------e a----------- me-----------ssa-----------ge -----------I w-----------ill----------- be----------- ca-----------tch-----------

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