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| title | tags | date | authors |
|---|---|---|---|
| YAC — BFT Consensus Algorithm for Blockchain |
link: https://doi.org/10.48550/arXiv.1809.00554
Summary
This is the algorthm used in Hyperledger Iroha.
Extracts
- A client forms a transaction with commands and signs it with their private key.
- The client sends the transaction to a peer. The peer receives the transaction, performs stateless validation (i.e., verifies that it is not malformed), and relays it to the OS.
- The OS generates a proposal and sends it to the peers. The proposal contains an ordered list of transactions that will be potentially added to the blockchain in this round.
- The proposal is sent to the voting peers. Peers enter the collaboration phase, during which they exchange votes across the network and decide on a block. More details on the collaboration phase are provided in Section V.
- The peer commits the block to their local block store.
Notes
Consensus [7] should guarantee liveness of the system, security, and convergence (consistency) of data stored in the ledger