In our digital age, cryptography is essential for secure communication. From online shopping to private messaging, cryptography keeps our information safe and trusted. With Python, exploring ...

- text (str): The input text to encode or decode. - shift (int): The number of positions to shift letters by. - mode (str): Determines whether to "encode" (shift forward) or "decode" (shift backward).

Cryptography is the practice of secure communication in the presence of adversaries. Python provides powerful libraries for implementing cryptographic algorithms. In this presentation, we'll explore ...