Encryption/decryption exercises smt415 | Computer Science homework help

SMT415 – Week 5 Homework Assignment

Encryption/Decryption Exercises

Student Name:

1. Encrypt the following message using the keyword CAUTION and the transposition method:
MARCH FORWARD INTO THE NIGHT TUESDAY NEXT

Answer:

2. Using the shared secret: PRIVACY, encrypt the following message with the transposition method:
ANYONE CAN HIDE MESSAGES  

Answer:

3. Decrypt the following message using the keyword CAUTION and the transposition method:
RAU CRM TYF GSN OIU PHH YPC

Answer:

4. Decrypt the following message using the keyword CAUTION with the transposition method:
OYES NTRE ECMG UNMS BAYE NUDA OOAS

Answer:

5.  Encrypt the following using the substitution method with a rotate value of 13:
ALL GOOD MEN SHOULD COME TO THE AID OF THEIR COUNTRY

Answer:

6. Decrypt the following using the substitution method with a rotate value of 13:
PELCGBTENCUL VF SHA

 

Answer: