1. 概念說明
Persistent and Accountable Domain Validation (PADVA) is a next-generation TLS notary service. PADVA combines the advantages of previous proposals, enhancing them, introducing novel mechanisms, and leveraging a blockchain platform which provides new features. PADVA keeps notaries auditable and accountable, introduces service-level agreements and mechanisms to enforce them, relaxes availability requirements for notaries, and works with the legacy TLS ecosystem.
PADVA 是下一代TLS notary技術服務,PAVDA包含之前投案、建議,加強它們,引入新的機制并影響區塊鏈平臺的諸多特性, PADVA使公證資料保持可審計性和責任感,引入服務級別協議和機制來執行這些協議,放寬公證人的可用性要求,并與LS生態經濟系統合作,
2. 業務流程

3. 系統架構The internal architecture of a PADVA notary

4. 擴展的公鑰機制

【參考】
- "Blockchain-based TLS Notary Service " Computer Science 2018
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