Self-sovereign identity refers to a person having control of their own personal information in a digital environment. Wallet applications are based on the idea of self-sovereign identity, and the proposed legislation on wallet applications specifies that users of wallet applications must have full control over the information in the application. In the case of wallet applications, self-sovereign means that a user’s personal information will be uploaded to a wallet application on the user’s mobile device and that the user can decide how to use that information. The information is in the user’s possession in the application, and no underlying database of all the information in the application is created, for example, by the authorities.