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The DEXON Network - The Infrastructure of the Internet’s Decentralized Future - Popo Chen

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Consensus

  • Core of Distribution Ledger Technology (DLT)
  • A DLT is equivalent to a Replicated State Machine (RSM)
  • A DLT does not have a central administrator

Blockchain Consensus

  • Safety
    • Eventually all honest nodes will have the same ordered list of transactions added
  • Liveness
    • System will not halt because of adversarial behaviors

Blockchain Bottlenecks

  • Low Scalability
  • High Transaction Confirm Latency
  • High TX Fees
  • Not really decentralized
  • High energy consumption

DEXON Concensus Algorithm

  • Infinitely Scalable Throughput (TPS)
  • Extremely Low Latency (~1s)
  • Symmetric / Fair / Truly Decentralized
  • Low Computation / Network Bandwidth Overhead

DEXON Consensus Design

  1. Reliable broadcast - eventual consistent blocklattice
  2. Total ordering - convert a blocklattice into an ordered chain
  3. Timestamping - generate a consistent timestamp on each block

Block Gossip -> Reliable Blocklattice -> Total-Ordered Blocks -> Timestamped Con…

candidate block
potential function
NACK mechanism

tags: COSCUP2018 misc
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