Thanks!

Thanks for joining!

There is also the many months long visa processes…

Big congratulations!

In real-life applications, each key share typically is held by a different entity and become its key. So compromising an entity’s key does not compromise the secret message

To add, there is also an approach called Threshold Cryptography where the main secret key is split into multiple “shares” and comprising one key share basically does not help. Access to sufficiently many key shares is needed to infer something meaningful (like recovering the message)

Where do we email to have our competitors’ papers rejected for publication? :)

Not sure about QR-code bills, but here in Australia I believe most people just set up direct debit where the biller is automatically paid from the customer’s bank card/account (after initial authorisation). Very convenient imo