Notes

• OpenAC adds anonymity and selective disclosure without changing issuers.
• A Prepare–Show split moves heavy work offline to cut online cost.
• Hyrax commitments enable hiding, binding, and unlinkability via re-randomization.
• Built on transparent zk-Spartan with no trusted setup.
• Show proofs run ~100 ms and ~40 KB on mobile.
• Compatible with SD-JWT/mDL and EUDI ARF, with room for PQ upgrades.

• OpenAC 在不改 Issuer 的前提下提供匿名与选择性披露。
• Prepare–Show 结构将重计算离线化以降低在线成本。
• Hyrax 承诺用于隐藏、绑定与重随机化避免链接。
• 基于透明 zk-Spartan，无需 trusted setup。
• Show 证明移动端约 100ms、40KB。
• 兼容 SD-JWT/mDL 与 EUDI ARF，具 PQ 升级空间。