use caesar cipher dictionary python

def caesar_encrypt(): word = input('Enter the plain text: ') c = '' for i in word: if (i == ' '): c += ' ' else: c += (chr(ord(i) + 3)) return c def caesar_decrypt(): word = input('Enter the cipher text: ') c = '' for i in word: if (i == ' '): c += ' ' else: c += (chr(ord(i) - 3)) return c plain = 'hello' cipher = caesar_encrypt(plain) decipher = caesar_decrypt(cipher)

python caesar cipher

plaintext = input("Please enter your plaintext: ")
shift = input("Please enter your key: ")
alphabet = "abcdefghijklmnopqrstuvwxyz"
ciphertext = ""

# shift value can only be an integer
while isinstance(int(shift), int) == False:
  # asking the user to reenter the shift value
  shift = input("Please enter your key (integers only!): ")

shift = int(shift)
  
new_ind = 0 # this value will be changed later
for i in plaintext:
  if i.lower() in alphabet:
    new_ind = alphabet.index(i) + shift
    ciphertext += alphabet[new_ind % 26]
  else:
    ciphertext += i    
print("The ciphertext is: " + ciphertext)

Posted by: Guest on June-07-2020

Code answers related to "use caesar cipher dictionary python"

Code answers related to "Python"

Browse Popular Code Answers by Language

Answers for "use caesar cipher dictionary python"

Code answers related to "use caesar cipher dictionary python"

Code answers related to "Python"

Python Answers by Framework

Browse Popular Code Answers by Language

Popular Programming Languages

Advertisements

Company

Compilers

Help

Connect with us