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This RoundCube plugin adds the 2-step verification(OTP) to the login proccess

Results 60 twofactor_gauthenticator issues
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I get the following warnings when using Roudcube 1.5.2 and the plugin: twofactor_gauthenticator_login along with PHP 8.0.14. [02-Jan-2022 20:51:58 Europe/Berlin] PHP Warning: Undefined array key "twofactor_gauthenticator" in /var/www/html/webmail/plugins/twofactor_gauthenticator/twofactor_gauthenticator.php on line...

1. https://www.php.net/manual/en/function.mt-rand.php > **Caution** This function does not generate cryptographically secure values, and should not be used for cryptographic purposes. If you need a cryptographically secure value, consider using random_int(),...

![image](https://user-images.githubusercontent.com/94662414/142557183-48837657-f328-4bf2-85c9-f065484ea873.png) Can we show the recovery code up again after we have save the 2FA settings

How could this happen? I just activated the plugin, created a secret and immediately got logged out. I had no chance to scan the QR, nor to enter a code...

Roundcube 1.4.9 with elastic Last version of plugin download from git, config file ok Scan = Unrecognized key

Does this work with Roundcube 1.5-beta and PHP 8 ?

Getting this error with Roundcube 1.5-RC and PHP 8: `PHP Fatal error: Array and string offset access syntax with curly braces is no longer supported in /path/to/my/site/roundcube/plugins/twofactor_gauthenticator/twofactor_gauthenticator.php on line 475...

Hi, I'm using elastic theme. Here are some small suggestions, as I'm a brand new user with a fresh view ;) ![2FA](https://user-images.githubusercontent.com/13604424/76955130-e70d7200-6911-11ea-8f99-46139799460c.png) ![2FA2](https://user-images.githubusercontent.com/13604424/76955132-e83e9f00-6911-11ea-9ada-91da0aea813c.png) ![2FA3](https://user-images.githubusercontent.com/13604424/76955134-e83e9f00-6911-11ea-87c7-7cdd8476fc0a.png) I would also add a line...

enhancement

I'm using the [roundcubemail docker setup](https://hub.docker.com/r/roundcube/roundcubemail) and I'm struggle to configure the plugin. What's the best way to set the settings for your plugin when using the docker setup? Especially...

Got an error on the php logs. PHP Fatal error: Uncaught ArithmeticError: Bit shift by negative number in C:\pathto\roundcubemail\plugins\twofactor_gauthenticator\CIDR.php:194