Introducing the Lissi Mobile Wallet 2.0

TL:DR:

  • The Lissi wallet 2.0 enables you to establish private peer-to-peer connections to third parties and exchange identity information.
  • It is developed by the Lissi Team within the Main Incubator GmbH, the research and development unit of the Commerzbank group.
  • The Lissi wallet 2.0 is available for Android and iOS (via testflight).

Wallets: A tool to participate in a digital society

An identity wallet provides the user with a user interface to receive, store, manage and share credentials as well as establish trusted connections to third parties. Self-sovereign wallets store all the data on the device of the user and handle the necessary technical aspects in the background. The application empowers individuals to take back agency over their digital lives and provide choice for their interactions.

The story behind the Lissi wallet

Image for post
Image for post
Lissi Logo

The main incubator already developed a prototype called “Chain ID” in 2017, however it wasn’t user-friendly and well structured. Based on these learnings the first version of the Lissi Wallet was published early 2020. After that we conducted countless code-reviews, improvement processes, design reviews and feedback-cycles to come up with the status quo of the Lissi wallet. Additionally, we tested the Wallet in an UX-lab with experts in the field of user experience (UX) to identify potential problems and further improve the user-friendliness of the wallet.

Image for post
Image for post

A feature rich user experience

Image for post
Image for post

The application is separated in two parts. On the left side the user has the wallet, which contains the collected credentials and on the right side the contacts. This product design is not only easy to navigate, but also streamlines the user experience and decreases the initial complexity for the user.

Furthermore, the Lissi wallet also offers multiple privacy preserving features. These statements (e.g. income >= 40.000 Euro per year) are called zero knowledge proofs or predicates. They don’t reveal the actual information (e.g your exact income), but instead only confirm that the information is equal, above, under or exactly a certain threshold (e.g. 40.000 € per year). Another feature we already implemented is selective disclosure, which enables third-parties requesting information (also referred to as verifiers or relying parties) to only request a subset of attributes of a credential. When somebody wants to identify you and you show your electronic identification (eID) it’s e.g. not always necessary to also convey your address.

The status quo and the road ahead

You can now download the Lissi wallet for play store (Android) and testflight (Apple iOS) and test it with either our institutional agent or one of the many other providers. Because we don’t lock you in our ecosystem and there are many other great SSI software providers, which we are actively working together with to enable seamless data portability and interoperability between different vendors. Should you have any comments or suggestions for feature implementations let us know via feedback@lissi.id.

Written by

Let’s initiate self-sovereign identity. Wir schaffen einen neuen Standard für digitale Identitätsverwaltung.

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store