Alpha Geek

(8)

$10/per page/Negotiable

About Alpha Geek

Levels Tought:
University

Expertise:
Accounting,Algebra See all
Accounting,Algebra,Architecture and Design,Art & Design,Biology,Business & Finance,Calculus,Chemistry,Communications,Computer Science,Environmental science,Essay writing,Programming,Social Science,Statistics Hide all
Teaching Since: Apr 2017
Last Sign in: 438 Weeks Ago, 1 Day Ago
Questions Answered: 9562
Tutorials Posted: 9559

Education

  • bachelor in business administration
    Polytechnic State University Sanluis
    Jan-2006 - Nov-2010

  • CPA
    Polytechnic State University
    Jan-2012 - Nov-2016

Experience

  • Professor
    Harvard Square Academy (HS2)
    Mar-2012 - Present

Category > Information Systems Posted 10 Jun 2017 My Price 5.00

Prove that the DES cipher satisfies the complementation property

1. Prove that the DES cipher satisfies the complementation property (see page 229).

2. Let k be the encipherment key for a Caesar cipher. The decipherment key differs; it is 26 – k. One of the characteristics of a public key system is that the encipherment and decipherment keys are different. Why then is the Caesar cipher a classical cryptosystem, not a public key cryptosystem? Be specific.

 

Answers

Alpha Geek
(8)
Status NEW Posted 10 Jun 2017 10:06 AM My Price 5.00

-----------

Attachments

file 1497090081-2037508_1_636325273462731587_solution.docx preview (1055 words )
C-----------MSC----------- 41-----------4 ----------- ----------- H-----------ome-----------wor-----------k #----------- 1 ----------- S-----------olu-----------tio-----------ns -----------to -----------Wri-----------tte-----------n E-----------xer-----------cis-----------es ----------- (D-----------oin-----------g t-----------he -----------pro-----------gra-----------mmi-----------ng -----------pro-----------ble-----------ms -----------fir-----------st -----------wil-----------l p-----------rob-----------abl-----------y h-----------elp----------- yo-----------u t-----------o s-----------olv-----------e -----------the----------- wr-----------itt-----------en -----------pro-----------ble-----------ms.----------- I-----------t's----------- OK----------- to----------- us-----------e y-----------our----------- pr-----------ogr-----------ams----------- to----------- so-----------lve----------- th-----------e w-----------rit-----------ten----------- p-----------rob-----------lem-----------s, -----------but----------- al-----------l s-----------tep-----------s m-----------ust----------- be----------- ex-----------pla-----------ine-----------d i-----------n o-----------rde-----------r t-----------o r-----------ece-----------ive----------- cr-----------edi-----------t. ----------- &q-----------uot-----------;Co-----------mpu-----------ter----------- pr-----------ogr-----------ams----------- sa-----------ys -----------XXX-----------X&q-----------uot-----------; i-----------s N-----------OT -----------an -----------exp-----------lan-----------ati-----------on)----------- 1-----------. -----------(Pr-----------obl-----------em -----------# 6----------- fr-----------om -----------Cha-----------pte-----------r 9----------- of----------- th-----------e t-----------ext-----------boo-----------k) -----------Dec-----------iph-----------eri-----------ng ----------- c-----------iph-----------ert-----------ext----------- ge-----------ner-----------ate-----------d b-----------y a-----------
Not Rated(0)