IEEE Access • Vol 13
Efficient Verifiable Credential Aggregation With Blockchain Anchoring and zk-SNARKs
January 2025 • Istiaque Ahmed, Kentaroh Toyoda, Tadashi Nakano, Thi Hong Tran
Traditional digital identity systems struggle with centralization, vulnerability to manipulation, and a lack of transparency. In distributed identity, different cryptographic methods are used for issuing credentials, which create challenges during presentation. It suffers from a fundamental interoperability barrier with heterogeneous digital-signature schemes, forcing each verifier either to implement every scheme or to trust a central translation gateway. We propose a signature-agnostic verification framework tha…