#Python keypad layout password

I can encrypt a file with a password, and then retrieve its contents by inputting the password again it supports symmetric encryption, i.e.Reading up a bit more, I’ve noticed that GNU privacy guard, the battle-tested solution for encrypted data communication, may be the answer to my problems, as: Solution 3: GNU privacy guard (GPG)Īs mentioned earlier, one of the requirements I have is to minimize the number of times I get prompted for credentials, as these things quickly become a source of friction. This means that, if I open a new terminal window, echo $MY_VARIABLE will show nothing, so I would have to revert back to inputting the credentials again.Īs explained in this unix.SE answer, the only way to make the environmental variable visible to other processes is, you guessed it, by writing it to a file, which is the exact issue I was trying to avoid in the first place, so environmental variables are a no-go. Unfortunately, this doesn’t work, since the above shell command only sets the environmental variable for the current shell and its subshells, but not anything else. Initially, I didn’t have a lot of info to go with, so I decided to prompt for the credentials in the CLI every time using input.įor sensitive data, such as passwords, I didn’t want to make the text visible on input this can be achieved using the getpass Python module, as follows: Solution 1: ask for credentials every time In any case, here’s a brief outline of the different solutions I’ve tried out.

Of course, people’s security requirements vary, so what works for me may not work for someone else. after a reboot I should be prompted for them again)

I should only have to input the credentials once (or as few times as possible) per user session (by session, I mean the one spawned by the operating system, i.e.

Alternatively, if this cannot be achieved, the credentials should not be stored unencrypted (i.e.

the credentials should not be stored on the disk.I don’t just need a hash of them or something the credentials themselves should be recoverable in plaintext, i.e.I had the following requirements in mind for handling the credentials: With a bit of bumbling around, I managed to get the interface to work, so I could now easily access the account from the CLI, though I still had the problem of inputting the login credentials every single time I called the script, so I decided to look around for ways to streamline that part of the process as well.

I can only assume this was done because of a “mobile first” attitude (read: they don’t want to maintain both a desktop and a mobile version of the site), making it extremely annoying to do something as simple as checking the current account balance.įortunately, after some googling, I found out that this particular bank actually does provide an API, and that someone has developed a Python interface for it. The layout of the keypad is always randomized, and, to add insult to injury, it’s impossible to paste anything into the input field, so I need to click on the numbers one by one with the mouse every single time. To provide an example, one of my banks provides a login form with a numerical keypad for password entry, but where the buttons are unordered, like this: 7 6 2 5 8 Logins to online services, and online banking in particular, seem to be becoming increasingly more elaborate depending on the particular service I’m dealing with, I always run into (in my opinion) nonsensical security measures and obfuscation attempts that just make the login procedure as cumbersome as possible.

Python keypad layout