Below is an idea diagram:
- It is imperative that everyone understands that using a bank application for numbers is transient, temporarily acceptable, but the goal is a separate user application of the issuer itself and nothing else.
- This separate application must be installed on the device and data exchanged directly with the issuer, without intermediary banks.
- then a separate, compact device specially adapted for this single application.
- This device stores in its built-in media, which is linked to its specific account, information about its account and in an encrypted form, some of the information received from other such devices directly, using a distributed data storage technology, the so-called blockchain, which allows it not to depend on Internet access and make payments offline, by matching with any other device (by analogy - you took money from your bank and handed it to the seller, he put it in the wallet).
- All these devices, when it is possible to communicate with other similar devices or with the Internet, replace their part with encrypted data about the status of other accounts, update information about the current status of accounts on the issuing server after the fact and make the necessary updates to their software.
- The device is linked to the owner with biometric data, with the possibility of replacing and blocking a lost device using an ID card so, in general, an image of a normal digital wallet can be seen for the average person and then nuances begin that he is not aware of, but it's better for us to find out in advance and if we can tell people it's clearer? Or are you not interested?