A Digital Identity in the Hands of Swiss Citizens

Jean-Luc Beuchat; Valon Rexhepi

Paper 2023/1099

A Digital Identity in the Hands of Swiss Citizens

Jean-Luc Beuchat

, University of Applied Sciences and Arts Western Switzerland

Valon Rexhepi, University of Applied Sciences and Arts Western Switzerland

Abstract

The Swiss law on electronic identity (LSIE) was rejected on March 7, 2021. Its opponents accused it of involving private companies which could thus collect citizens' data and store them centrally. Six motions with identical wording were tabled on March 10, 2021: they all ask the Swiss Federal Council to set up a state-run system allowing citizens to prove their identity online in complete confidence. They stipulate that only necessary information is collected and stored in a decentralized manner. The Swiss Federal Council has recommended to Parliament to approve these motions on May 26, 2021, and wishes to propose a new e-ID solution responding to citizens' concerns as soon as possible. The Federal Department of Justice and Police has been asked to draw up a first draft presenting several technical solutions and specifying their respective costs. Following the publication of a working document on September 2, 2021, a public consultation was opened. It ended on October 14, 2021, with a public debate organized at the Government House in Bern and broadcasted live on a virtual platform. Self-Sovereign Identity (SSI) is one of the solutions identified during this process. It gives the citizens control of their electronic identity: they hold credentials issued by public administrations and choose the data they wish to disclose when they authenticate with a service (they can for example prove that they are over 18 without specifying their exact date of birth). We propose here a decentralized and user-centric e-ID system based on SSI principles. Our solution embraces an open-source philosophy, fostering transparency and community involvement. We employ blockchain technology as a design pattern to establish trust and ensure the immutability of identity-related data. By design, our solution ensures the right to be forgotten by exclusively storing the digests of verifiable credentials on the blockchain. To demonstrate the feasibility and effectiveness of our SSI solution, we have developed a proof of concept leveraging the Partisia blockchain.

Metadata

Available format(s): PDF
Category: Applications
Publication info: Preprint.
Keywords: Self-Sovereign Identity (SSI)blockchain SD-JWT selective disclosure
Contact author(s): jean-luc beuchat @ hevs ch
valon rexhepi @ hevs ch
History: 2024-04-15: revised; 2023-07-14: received; See all versions
Short URL: https://ia.cr/2023/1099
License: CC BY

BibTeX

@misc{cryptoeprint:2023/1099,
      author = {Jean-Luc Beuchat and Valon Rexhepi},
      title = {A Digital Identity in the Hands of Swiss Citizens},
      howpublished = {Cryptology ePrint Archive, Paper 2023/1099},
      year = {2023},
      note = {\url{https://eprint.iacr.org/2023/1099}},
      url = {https://eprint.iacr.org/2023/1099}
}