otpauth | Implements two-step verification | Authentication library

Hello all and thank you in advance for your help,

I have a list of same links in a txt file and need to replace one string 'username' in multiple lines in it : example of one line in a file (string to replace in bold)

https://www.google.com/chart?chs=200x200&chld=M|0&cht=qr&chl=otpauth://totp/**username**@svgauth%3Fsecret%3D

List of users from file : example C:\Temp\names.txt . File structure like : john bob merry and so on...

output to the txt file should be like :

https://www.google.com/chart?chs=200x200&chld=M|0&cht=qr&chl=otpauth://totp/**bob**@svgauth%3Fsecret%3D https://www.google.com/chart?chs=200x200&chld=M|0&cht=qr&chl=otpauth://totp/**john**@svgauth%3Fsecret%3D https://www.google.com/chart?chs=200x200&chld=M|0&cht=qr&chl=otpauth://totp/**merry**@svgauth%3Fsecret%3D

all the replacements should be taken from a txt file

This code isn't working, it is just an example :

I'm building a 2FA application, which scans a QR code. Then it parses the uri inside QR code and returns a totp code. However, I have a problem closing the CupertinoActionSheet using Navigator.of(context).pop().

I want it to work like that:

1. When a user taps on "add" button, the Action Sheet shows up.
2. When user clicks on "Scan QR code", the Action Sheet must close and then proceed with scanning.

Here's what it looks like:

Here's the error that shows ups when I have the code below: "Looking up a deactivated widget's ancestor is unsafe. At this point the state of the widget's element tree is no longer stable. To safely refer to a widget's ancestor in its dispose() method, save a reference to the ancestor by calling dependOnInheritedWidgetOfExactType() in the widget's didChangeDependencies() method."

I'm doing a small web project to generate OTP online (like Google authenticator). I'm currently using otpauth library to generate OTP code. It can't generate code if secret key is wrong. So how do I check if entered secret key is correct?

I am trying to open following URL in WKWebview,

https://chart.googleapis.com/chart?chs=200x200&chld=M|0&cht=qr&chl=otpauth://totp/mynameisanthony@gmail.com?secret=B6S2LGJTQHIDKIMU&issuer=someapp+Auth

I'm using this package: https://github.com/RobThree/TwoFactorAuth and I'm trying to follow the part of the guide where you can use your own QR code provider.

I downloaded the phpqrcode.php file and placed it in the directory where TwoFactorAuth.php is located.

When require_once is at the top like in the guide, I get the error:

Fatal error: Namespace declaration statement has to be the very first statement or after any declare call in the script in /var/www/public/vendor/robthree/twofactorauth/lib/Providers/Qr/MyProvider.php on line 4

So, in the directory with TwoFactorAuth.php I added myprovider.php with the following code:

If I create a BaseController in my Asp.Net Core 2.0 web application that capsulizes some of the common dependencies are they still necessary in the actual controllers.

For Example, the standard Account and Manage controllers in a default MVC 6 web application.

So i'm having a problem with google authenticator and my PHP.

So i'm using this library to generate QR codes: https://github.com/PHPGangsta/GoogleAuthenticator

So when I use my username to generate a code it works fine. I get something along the lines of: otpauth://totp/username?secret=aCodeInBase32&issuer=Mysite

For my case it is: otpauth://totp/NoahNok?secret=aCodeInBase32&issuer=JukeHost

however when doing this for any other use I get an invalid token error on the Google Authenticator app. It doesnt matter what else I put I always seem to get this error, yet it works fine for my account.

E.g this one doesn't work: otpauth://totp/Test?secret=KRSX&issuer=JukeHost

Is there something obvious im doing wrong?

Code im using: Some queries before to get data

Currently, I'm struggling with the HOTP implementation in Java for Android. I'm trying to generate an OTP code to match them with the user input to sign in to the app. For that, I use this script. When I create some test values from the moving factor 0 to 19 I get the following codes:

I'm using this library to generate a QR code for Google Authenticator.

Unfortunately when I then scan the QR code, it's incorrect. Uploading the QR code to this website provides the following:

OTPAUTH%3A%2F%2FTOTP :0000000000000000000000000000000000000000000000000000000000000000000000000000000

Something seems to go wrong after totp but the next part of the input is %2F which has already appeared twice and been handled correctly.

When I put the input string into this online generator, the QR code is correctly generated.

Here is my code: