Hello, I am writing regarding development of modification which allows using One-Time Passcode (OTP) when sharing files via email. It was previously discussed, but those topics/issues are closed, therefore I am creating this.
Introducing modification which enables such functionality, but is still work in progress (WIP) and therefore it is up to you to bring it to a suitable level. Link to repository (access is limited to users, but it is open to public):
If you are interested in contributing to this, then you can answer here. Thank you in advance.
References
Also, issue number 7494:
Feature Request: TOTP sharing of files and folders
As this topic starting post was updated since your message you can now see that this feature is already introduced and there is a link to the repository. If you want to contribute, then I can add you as a collaborator.