cluster_0 Design and Implementation Phase 4 cluster_4 Design and Implementation Phase 3 cluster_3 Implementation Phase 1: Simulation Codebase cluster_2 Prototype Phase 2 cluster_1 Design Phase 2 - Integrated Crosslink cluster_5 Prototype Phase 1 ECC/tfl-book#132 ECC/tfl-book#132 Does the issue about block chains not being one-shot invalidate the liveness analysis for Snap-and-Chat? ECC/tfl-book#82 ECC/tfl-book#82 Analyze Crosslink against our best known combined attacks ECC/tfl-book#132->ECC/tfl-book#82 ECC/tfl-book#84 ECC/tfl-book#84 Publish a "Design Milestone 4" release ECC/tfl-book#82->ECC/tfl-book#84 ECC/zebra-tfl#7 ECC/zebra-tfl#7 Prototype sufficient to resolve design issues for Hybrid PoS ECC/tfl-book#84->ECC/zebra-tfl#7 ECC/tfl-book#70 ECC/tfl-book#70 Adapt CometBFT (formerly TendermintBFT) into Crosslink ECC/tfl-book#5 ECC/tfl-book#5 Prototype CometBFT (formerly TendermintBFT) as the finality subprotocol. ECC/tfl-book#70->ECC/tfl-book#5 ECC/tfl-book#116 ECC/tfl-book#116 Evaluate PoS subprotocol candidates and their Crosslink adaptations ECC/tfl-book#70->ECC/tfl-book#116 ECC/tfl-book#5->ECC/tfl-book#84 ECC/tfl-book#116->ECC/tfl-book#84 ECC/tfl-book#42 ECC/tfl-book#42 Does Snap-and-Chat design split the minimum cost of attack for specific known attacks? ECC/tfl-book#49 ECC/tfl-book#49 Clarify our "weakest link" security concerns in precise questions. ECC/tfl-book#42->ECC/tfl-book#49 ECC/tfl-book#49->ECC/tfl-book#82 ECC/tfl-book#47 ECC/tfl-book#47 Ebb-and-Flow: what are the impacts of subprotocols sharing resources? ECC/tfl-book#47->ECC/tfl-book#49 ECC/tfl-book#48 ECC/tfl-book#48 Write Best-Effort / Napkin Math approximation of Min. Cost of Known Attack metric for several attacks. ECC/tfl-book#48->ECC/tfl-book#49 zcash/simtfl#11 zcash/simtfl#11 Implement combined attacks zcash/simtfl#11->ECC/tfl-book#82 zcash/simtfl#11->ECC/tfl-book#70 zcash/simtfl#17 zcash/simtfl#17 simtfl 1.0.0 (corresponding to Design and Implementation Phase 4) zcash/simtfl#11->zcash/simtfl#17 zcash/simtfl#17->ECC/tfl-book#84 ECC/tfl-book#39 ECC/tfl-book#39 Analyze Attack Scenario: Compromised Finality Oracle + Miner only finalizes that miner's blocks ECC/tfl-book#39->zcash/simtfl#11 ECC/tfl-book#111 ECC/tfl-book#111 How can HotStuff be described in Crosslink's BFT model? ECC/tfl-book#111->ECC/tfl-book#116 ECC/tfl-book#71 ECC/tfl-book#71 Analyze Crosslink against a set of known PoS attacks ECC/tfl-book#123 ECC/tfl-book#123 Explain why we're more confident in Crosslink security vs the other hybrid construction candidates ECC/tfl-book#71->ECC/tfl-book#123 ECC/tfl-book#81 ECC/tfl-book#81 Write up conclusions of analyzing Crosslink against some known attacks ECC/tfl-book#123->ECC/tfl-book#81 ECC/tfl-book#137 ECC/tfl-book#137 Improve Goals, Requirements, and Desiderata ECC/tfl-book#123->ECC/tfl-book#137 ECC/tfl-book#136 ECC/tfl-book#136 Design Phase 3 - tfl-book v0.3.0 - simtfl results & PoS Goals / Reqs ECC/tfl-book#81->ECC/tfl-book#136 ECC/tfl-book#137->ECC/tfl-book#136 ECC/tfl-book#136->ECC/tfl-book#42 ECC/tfl-book#136->ECC/tfl-book#47 ECC/tfl-book#136->ECC/tfl-book#48 ECC/tfl-book#136->ECC/tfl-book#39 ECC/tfl-book#72 ECC/tfl-book#72 Analyze Crosslink against a set of known PoW attacks. ECC/tfl-book#72->ECC/tfl-book#123 ECC/tfl-book#134 ECC/tfl-book#134 Decide on slashing requirements from the economic, security, and UX trade-offs around slashing or no-slashing staking protocols ECC/tfl-book#117 ECC/tfl-book#117 Define PoS Subprotocol goals, requirements, and desiderata ECC/tfl-book#134->ECC/tfl-book#117 ECC/tfl-book#117->ECC/tfl-book#137 ECC/tfl-book#140 ECC/tfl-book#140 Analyse and improve Crosslink's security against combined eclipse / validator key compromise attacks ECC/tfl-book#140->ECC/tfl-book#72 zcash/simtfl#14 zcash/simtfl#14 simtfl 0.2.0 (corresponding to Implementation Phase 1: Simulation Codebase) zcash/simtfl#14->ECC/tfl-book#71 zcash/simtfl#14->ECC/tfl-book#72 zcash/simtfl#10 zcash/simtfl#10 Implement some known BFT and/or PoS attacks zcash/simtfl#10->zcash/simtfl#14 zcash/simtfl#7 zcash/simtfl#7 Define BC abstractions and PoW (honest behaviour only) zcash/simtfl#8 zcash/simtfl#8 Define Crosslink (honest behaviour only) zcash/simtfl#7->zcash/simtfl#8 zcash/simtfl#9 zcash/simtfl#9 Implement some known PoW attacks zcash/simtfl#7->zcash/simtfl#9 zcash/simtfl#8->zcash/simtfl#14 zcash/simtfl#9->zcash/simtfl#14 zcash/simtfl#20 zcash/simtfl#20 Add test coverage that ensures edge cases lead to invalid blocks zcash/simtfl#20->zcash/simtfl#9 zcash/simtfl#15 zcash/simtfl#15 Design/document the network layer used in the simulation zcash/simtfl#16 zcash/simtfl#16 Implement network layer zcash/simtfl#15->zcash/simtfl#16 zcash/simtfl#16->zcash/simtfl#10 zcash/simtfl#16->zcash/simtfl#8 zcash/simtfl#16->zcash/simtfl#9 zcash/simtfl#25 zcash/simtfl#25 Finish Streamlet zcash/simtfl#25->zcash/simtfl#10 zcash/simtfl#25->zcash/simtfl#8 ECC/zebra-tfl#4 ECC/zebra-tfl#4 Prototype release 0.x (for phase 2) ECC/zebra-tfl#4->ECC/tfl-book#70 ECC/zebra-tfl#11 ECC/zebra-tfl#11 Consider putting bft- proposals in bc-block- headers ECC/zebra-tfl#11->ECC/zebra-tfl#4 ECC/tfl-book#86 ECC/tfl-book#86 Define macros so that we can easily use Crosslink notation in the book ECC/tfl-book#142 ECC/tfl-book#142 Write up Crosslink 2 ECC/tfl-book#86->ECC/tfl-book#142 ECC/tfl-book#99 ECC/tfl-book#99 Design Milestone 2 - tfl- book v0.2.0 - Integrated Crosslink ECC/tfl-book#142->ECC/tfl-book#99 ECC/tfl-book#99->ECC/tfl-book#71 ECC/tfl-book#99->ECC/tfl-book#72 ECC/tfl-book#99->ECC/zebra-tfl#4 ECC/tfl-book#77 ECC/tfl-book#77 Add "Avoided Terms" section in "Terminology" ECC/tfl-book#77->ECC/tfl-book#99 ECC/tfl-book#25 ECC/tfl-book#25 Add style guide / textual conventions. ECC/tfl-book#25->ECC/tfl-book#99 ECC/tfl-book#119 ECC/tfl-book#119 Clarify the distinctions between pure PoW, the PoW subprotocol, NU5, and fork-choice vs all of transaction semantics. ECC/tfl-book#119->ECC/tfl-book#99 ECC/zebra-tfl#3 ECC/zebra-tfl#3 Add test harness ECC/zebra-tfl#1 ECC/zebra-tfl#1 Prototype release 0.1 ECC/zebra-tfl#3->ECC/zebra-tfl#1 ECC/zebra-tfl#1->ECC/zebra-tfl#4 ECC/zebra-tfl#6 ECC/zebra-tfl#6 Create a testnet ECC/zebra-tfl#6->ECC/zebra-tfl#1 ECC/tfl-book#150 ECC/tfl-book#150 Design staking for Hybrid PoS ECC/zebra-tfl#7->ECC/tfl-book#150 ECC/tfl-book#152 ECC/tfl-book#152 Design activation logic for Hybrid PoS ECC/zebra-tfl#7->ECC/tfl-book#152 ECC/tfl-book#153 ECC/tfl-book#153 Design interaction of BFT and PoW components of Hybrid PoS ECC/zebra-tfl#7->ECC/tfl-book#153 ECC/tfl-book#151 ECC/tfl-book#151 Initial documentation of all elements of the Hybrid PoS design ECC/tfl-book#150->ECC/tfl-book#151 ECC/tfl-book#152->ECC/tfl-book#151 ECC/tfl-book#153->ECC/tfl-book#151 ECC/tfl-book#156 ECC/tfl-book#156 Finalize details of Hybrid PoS deployment on Mainnet ECC/tfl-book#143 ECC/tfl-book#143 Deploy a Hybrid PoS protocol on Mainnet ECC/tfl-book#156->ECC/tfl-book#143 ECC/tfl-book#149 ECC/tfl-book#149 Finalize documentation of Hybrid PoS protocol ECC/tfl-book#151->ECC/tfl-book#149 ECC/zebra-tfl#8 ECC/zebra-tfl#8 Prototype of in-principle deployable Hybrid PoS design using Zebra ECC/tfl-book#151->ECC/zebra-tfl#8 ECC/tfl-book#146 ECC/tfl-book#146 Create a feature Testnet for Hybrid PoS deployment ECC/tfl-book#145 ECC/tfl-book#145 Deploy initial candidate for a Hybrid PoS protocol on a feature Testnet ECC/tfl-book#146->ECC/tfl-book#145 ECC/tfl-book#147 ECC/tfl-book#147 Make sure other concurrently developed features are merged into Hybrid PoS Testnet ECC/tfl-book#145->ECC/tfl-book#147 ECC/tfl-book#148 ECC/tfl-book#148 Integration audit of Hybrid PoS protocol plus other concurrent features, as deployed to feature Testnet ECC/tfl-book#145->ECC/tfl-book#148 ECC/zebra-tfl#10 ECC/zebra-tfl#10 Working toolchain for all features of Hybrid PoS ECC/tfl-book#145->ECC/zebra-tfl#10 ECC/tfl-book#154 ECC/tfl-book#154 Obtain community consensus to deploy Hybrid PoS on public Testnet and (if successful) Mainnet ECC/tfl-book#147->ECC/tfl-book#154 ECC/tfl-book#148->ECC/tfl-book#154 ECC/zebra-tfl#10->ECC/tfl-book#148 ECC/tfl-book#144 ECC/tfl-book#144 Deploy Hybrid PoS protocol on public Testnet ECC/tfl-book#154->ECC/tfl-book#144 ECC/tfl-book#144->ECC/tfl-book#156 ECC/tfl-book#149->ECC/tfl-book#147 ECC/zebra-tfl#8->ECC/zebra-tfl#10 ECC/zebra-tfl#9 ECC/zebra-tfl#9 Merge Hybrid PoS implementation into Zebra behind a feature flag ECC/zebra-tfl#8->ECC/zebra-tfl#9