Decrypt using Vigenere cipher – What is the key?

Use www.cryptool.org for this exercise

Exercise 1

1. Close the Announcement Window

2. On the TOP Menu. Select File –> New and Type  “University of The Cumberlands is located in Florence, KY”

2. On the TOP menu. click on Encrypt/Decrypt

3. Select Symmetric (Classic)

4. Select Caesar/ROT13

Read the description

Click on the Radio Button for Caesar

Click on the Alphabet and type E (you want an A to be substituted with an E (It is a “4” shift)

5. Click on ENCRYPT

Save your output as you will need it later for the QUIZ

6. Click on CANCEL

Exercise 2

1. Now from the TOP menu, select Symmetric –> Vigenere

2. In the Key box, type “APPLE”

3. Click on Encrypt

4. Save your output as you will need it later for the QUIZ

Exercise 3

Use Cryptool to Decrypt the following. The encryption algorithm is Caesar Cipher.

mbizdyyv sc k mywzboroxcsfo pboo onemkdsyxkv zbyqbkw
klyed mbizdyqbkzri kxn mbizdkxkvicsc
yppobsxq ohdoxcsfo yxvsxo rovz kxn wkxi fscekvsjkdsyxc.

Remember the answer for your QUIZ

Exercise 4

Decrypt using Vigenere cipher – What is the key?

Rtsciv kevki jfsg veucc zyiq zrgvig tsrbig