Add support for TOTP defined in URI format

[Nu11u5]

Per the feature list and #7, #8 KeePassium supports TOTP.

I have a KDBX file created in https://app.keeweb.info/ that has been imported into KeePassium. Entries have records labeled "otp" with data in the standard URI format "otpauth://totp/{label}?secret=...". This shows the rotating TOTP code correctly in KeeWeb but in KeePassium all I see is the protected URI text.

Additionally I cannot see how to create a new TOTP record in KeePassium. Am I supposed to enter the URI manually - no support for QR codes?

How is TOTP supposed to be setup and used?

[SyntaxDragon]

If we have a TOTP feature where is it located?

I also suggest a option to store Private Keys or generate them (with an option to export)

[keepassium]

@Nu11u5, yes, since beta 16 KeePassium can show TOTP codes stored in KeePassXC format (TOTP Seed and TOTP Settings fields). I thought it was the only format used by KeePass apps. Guess I was wrong :)

At the moment TOTP support is view-only (so the readme is a bit misleading). Anyway, creating/scanning them is certainly in my backlog.

@Dragonblitz10, you can already store key pairs as entry attachments. Generating them, however, is beyond the scope of a password manager — this is better done by specialized utilities.

[Nu11u5]

@keepassium This should be the documentation on the URI format (looks to be created by Google):

https://github.com/google/google-authenticator/wiki/Key-Uri-Format

All of the TOTP QR codes that I've scanned into Keeweb have used this format.