python caesar cipher
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)
caesar cipher python
def cc_encrypt(msg: str,key: int) -> str: encrypted_msg = '' try: for char in msg: encrypted_msg += str(chr(ord(char)+int(key))) except: print(Exception) pass return encrypted_msg def cc_decrypt(msg: str,key: int) -> str: decrypted_msg = '' try: for char in msg: decrypted_msg += chr(ord(char)-int(key)) except: print(Exception) pass return decrypted_msg message = 'Hello World!' key = 9 print(f'Caesar Cipher:nEncrypted: {cc_encrypt(message,key)}nDecrypted: {cc_decrypt(cc_encrypt(message,key),key)}')
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