Are blocks mined in HyperLedger Fabric?

Question

I have been reading the documentation on how HyperLedger Fabric\'s project is implementing a open source BlockChain solution: https://github.com/hyperledger/fabric/blob/mast

Answer 1

Hyperledger is an umbrella of blockchain technologies. Hyperledger Fabric, mentioned above, is one of them. Hyperledger Sawtooth also does not use mining and adds these consensus algorithms:

• PoET Proof of Elapsed Time (optional Nakamoto-style consensus algorithm used for Sawtooth). PoET with SGX has BFT. PoET Simulator has CFT. Not CPU-intensive as with PoW-style algorithms, although it still can fork and have stale blocks . See PoET specification at https://sawtooth.hyperledger.org/docs/core/release s/latest/architecture/poet.html
• RAFT Consensus algorithm that elects a leader for a term of arbitrary time. Leader replaced if it times-out. Raft is faster than PoET, but is not BFT (Raft is CFT). Also Raft does not fork.
• With unpluggable consensus, another consensus algorithm can be changed without reinitializing the blockchain or even restarting the software.

For completeness, the original consensus algorithm with bitcoin (and does use mining) is:

• PoW Proof of Work. Completing work (CPU-intensive Nakamoto-style consensus algorithm). Usually used in permissionless blockchains