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Do you want to be able to use your calculator for 2FA?
Yes
 28%  [ 2 ]
No
 71%  [ 5 ]
Total Votes : 7

So I've been researching how two-factor authentication works and turns out it's pretty simple and can be even implemented on a TI-84+CE since it has a real-time clock and a CPU fast enough to compute the necessary hashes.

Should I get started with implementing that?
If you are using 2FA anywhere, you'll know that the application on your phone generates a 6-digit temporary password - and basically, your calculator can do the same with my proposed program.

Of course, my approach would probably be less secure and you shouldn't trust it for sensitive purposes, but I suppose it'll work well enough.

It would use the 16-character code that is shown when registering with Google Authenticator (sometimes separately, but mostly in a QR code - you'd need something to scan that with).

What do you think?
SopaXorzTaker wrote:
So I've been researching how two-factor authentication works and turns out it's pretty simple and can be even implemented on a TI-84+CE since it has a real-time clock and a CPU fast enough to compute the necessary hashes.

Should I get started with implementing that?
If you are using 2FA anywhere, you'll know that the application on your phone generates a 6-digit temporary password - and basically, your calculator can do the same with my proposed program.

Of course, my approach would probably be less secure and you shouldn't trust it for sensitive purposes, but I suppose it'll work well enough.

It would use the 16-character code that is shown when registering with Google Authenticator (sometimes separately, but mostly in a QR code - you'd need something to scan that with).

What do you think?


Wouldn't you need internet connection to use 2FA?
I wish my CE had internet connection
No

This program uses the Google Authenticator algorithm. All you need to do is input the code that google uses. Besides, the CE does not have internet protocols yet.
  
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