ROT13 cipher: Issues in current implementation

[kobby-pentangeli]

The current implementation is quite solid and doesn't seem to have any particular vulnerabilities intrinsic to the algorithm or code. However, one could consider potential attacks not on the cipher logic itself, but on how the program interacts with its environment or handles input. Here are some considerations:

1. Input Handling:

• In the future, if we add more features, we must ensure that inputs are validated properly to avoid issues like buffer overflow or injection attacks.

2. Error Handling:

• As of now, the program doesn't have proper custom error handling. In a more comprehensive application, lack of error handling could potentially be exploited or result in unexpected behaviour.