Research Article
Blockchain-Assisted Distributed Fog Computing Control Flow Attestation
Table 1
Comparison of the consensus algorithm.
| | Consensus algorithm | PoW | PoS | DPoS | PBFT | RAFT |
| | Byzantine fault tolerance | 50% | 50% | 50% | 33% | N/A | | Crash fault tolerance | 50% | 50% | 50% | 33% | 50% | | Decentralization | High | High | Low | Low | Low | | Resource consumption | High | Medium | Low | Low | Low | | Scalability | Strong | Strong | Strong | Weak | Weak | | Communication complexity | O(n) | O(n) | O(n) | O(n2) | O(n) | | Verification speed | >100 s | <100 s | <100 s | <10 s | <10 s | | Throughput (TPS) | <100 | <1000 | <1000 | <2000 | >10 k |
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