Add support for encrypting TOTP secrets

[jeffpaul]

Add support for encrypting TOTP secrets (if a constant is defined).

More details to be shared.

[calvinalkan]

@jeffpaul Ping me here or in PR's.

Whats the minimum version for this project?

[calvinalkan]

Strongly vote for https://github.com/defuse/php-encryption/blob/master/composer.json

Supports the minimum PHP version required here.

[calvinalkan]

Or libsodium which is in php7.2 core and WP core includes sodium_compat.

https://paragonie.com/book/pecl-libsodium/read/04-secretkey-crypto.md

[jeffpaul]

@calvinalkan not sure what minimum version you're referencing but this plugin requires WordPress 4.3 and PHP 5.6. If those are not what you were referencing, please restate so someone can chime in and help... thanks!

[calvinalkan]

@calvinalkan not sure what minimum version you're referencing but this plugin requires WordPress 4.3 and PHP 5.6. If those are not what you were referencing, please restate so someone can chime in and help... thanks!

Yes im refering to the PHP Version.

Defuse/encryption supports PHP5.6