Collective Authorities: Transparency & Decentralized Trust...
summary
Claims a working system for collective signatures that aggregates many witness attestations into one compact, efficiently verifiable signature. Uses a distributed signing protocol with commit/challenge/response rounds, public logs and reproducible-build checks to back decentralized software update integrity. Reports scaling results: signature creation with 8,000 nodes in ~2s and constant-time verification. Shows applications: non‑probabilistic BFT consensus raising throughput to ~700 transactions per second (vs ~7 for Bitcoin), and a bias‑resistant randomness beacon via secret sharing.
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chapters (16)
- 0:00Intro
- 0:21Deep Dependence on Internet Authorities
- 1:05Authorities Make and Sign Statements
- 2:08Authority Compromise
- 2:43Technical Threats
- 3:10Legal Threats
- 5:19Fact: No Individual Entity is Immune to Compromise or Coercion
- 5:44Legal Self-Defense
- 8:27Towards Ulysses Pacts for Internet Authorities
- 9:49Decentralized Witness Cosigning
- 10:34Regular Versus Collective Signing Excerpt of a public petition from 1866
- 12:34CoSi Features
- 14:55Security / Transparency Levels
- 15:43Scalable Strongly Consistent Blockchains
- 16:53Scalable Bias-Resistant Distributed Randomness
- 17:33Software Update Transparency
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