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sander / hierarchical-deterministic-keys

Hierarchical Deterministic Keys for the European Digital Identity Wallet
https://github.com/eu-digital-identity-wallet/eudi-doc-architecture-and-reference-framework/discussions/282
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Consider secret sharing for blinding factors #66

Open sander opened 1 month ago

sander commented 1 month ago

In An HSM-based EUDI wallet using Split-ECDSA (SECDSA) providing verifiable “sole control” § 5 the author proposes having blinding factors b1 * b2 where b1 lives in a local WSCA agent and b2 on a WSCA service (#60). This may improve security and cover some compliance risks. Should we consider including this in HDK?