Home > Resources > papers > BCD+14-ABC4Trust

D2.2 Architecture for Attribute-based Credential Technologies — Final Version (ABC4Trust) (Bichsel et al. 2014)

Last modified: 2026-10-27

URL: https://abc4trust.eu/download/Deliverable_D2.2.pdf

Summary

Final architecture deliverable of the EU ABC4Trust project, which unified Privacy-ABC systems (IBM Identity Mixer / CL signatures and Microsoft U-Prove) behind a common, mechanism-independent architecture and data formats for issuers, users, verifiers, revocation and inspection authorities. It describes the full feature set (selective disclosure, pseudonyms, inspection/conditional disclosure, revocation, key binding) and how to compose it from signatures and Schnorr-type proofs. BL26-SoK-AnonCreds presents itself as an updated, wallet-centric version of this overview.

Related resources

• A Signature Scheme with Efficient Protocols (Camenisch, Lysyanskaya 2002) (paper, 2002)
• SoK: Anonymous Credentials (Kakvi, Martin, Putman, Quaglia 2023) (paper, 2023)
• SoK: Anonymous Credentials for Digital Identity Wallets (Bormann, Lehmann 2026) (paper, 2026)
• U-Prove Cryptographic Specification V1.1 (Paquin, Zaverucha 2011) (paper, 2011)