How to Code an Encoder and Decoder in Python!

Publié le: 19 septembre 2020
sur la chaîne: Chris's Coding Corner

253

In this video, I show you how to program your own A1-Z26 Cypher encoder and decoder so you can send encoded messages. You could also use this as a baseline to make more elaborate encoders and decoders such as making all the letters into prime numbers and multiplying them by other prime numbers, this is also the basis for modern military encryption.

The Code (so you don't have to):

alphabet = ['', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u',
'v', 'w', 'x', 'y', 'z', ' ', '!']

while True:
hello = input("\nCode Maker and breaker:\n1. Encode a sentence\n2. Decode a sentence\n9. Exit\n: ")

if hello == '1':
word = input("Input a sentence to Incode: ")
word = word.lower()

incode = list(word)
count = (len(incode))
timecount = 0

for count in incode:
code = alphabet.index(incode[timecount])

print(code, "", end='')

timecount = timecount + 1

elif hello == "2":
cistring = input("Input a sentence to decode: ")

string = ""
data = cistring.split()

for char in data:
char = chr(int(char) + 96)

if char == '{':
print(" ", end='')
elif char == "|":
print("!", end='')
else:
string += char
print(char, end='')

elif hello == '9':
print("Thanks for using Code maker and Breaker, have a good day")
break

else:
print("404 error, command not found. Try again using 1, 2 or 9")

Sur cette page du site, vous pouvez voir la vidéo en ligne How to Code an Encoder and Decoder in Python! durée heure minute seconde en bonne qualité , qui a été Téléchargé par l'utilisateur Chris's Coding Corner 19 septembre 2020, Partagez le lien avec vos amis et connaissances, sur youtube cette vidéo a déjà été regardée 253 fois et il a aimé 8 téléspectateurs. Bon visionnage!

1,090