My Cipher

coder.py

import sys

import decoder
import encoder

if __name__ == "__main__":
    if sys.argv[1] == "encode":
        print(encoder.encode(sys.argv[2]))
    elif sys.argv[1] == "decode":
        print(decoder.decode(sys.argv[2]))
    else:
        print("Unknown option: " + sys.argv[1])

decoder.py

import sys
import random


def decode(code: str):
    cod = list(map(int, code.split(".")))

    out: str = ''

    random.seed(cod[0])

    for i in range(1, len(code)):
        out += chr(cod[i] // random.randint(1, 1000))

    return out


if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("USAGE: py decoder.py <message>")
        exit(1)
    print(decode(sys.argv[1]))

encoder.py

import sys
import random


def encode(msg: str):
    out: list[str] = []

    seed = random.randint(0, 10000)

    random.seed(seed)
    out.append(str(seed))

    for i in range(len(msg)):
        out.append(str(random.randint(1, 1000) * ord(msg[i])))

    return '.'.join(map(str, out))


if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("USAGE: py encoder.py <message>")
        exit(1)
    print(encode(sys.argv[1]))