• Corpus ID: 10674564

The Stellar Consensus Protocol: A Federated Model for Internet-level Consensus

@inproceedings{Mazires2015TheSC,
  title={The Stellar Consensus Protocol: A Federated Model for Internet-level Consensus},
  author={David Mazi{\`e}res},
  year={2015}
}
This paper introduces a new model for consensus called federated Byzantine agreement (FBA). FBA achieves robustness through quorum slices—individual trust decisions made by each node that together determine system-level quorums. Slices bind the system together much the way individual networks’ peering and tran- sit decisions now unify the Internet. We also present the Stellar Consensus Protocol (SCP), a construction for FBA. Like all Byzantine agree- ment protocols, SCP makes no assumptions… 
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References

SHOWING 1-10 OF 50 REFERENCES
The Ripple Protocol Consensus Algorithm
TLDR
This work presents a novel consensus algorithm that circumvents the requirement that all nodes within the network communicate synchronously by utilizing collectively-trusted subnetworks within the larger network and shows that minimal connectivity is required to maintain agreement throughout the whole network.
Byzantine Consensus with Unknown Participants
TLDR
A solution for BFT-CUP that does not require digital signatures is presented and the algorithms are shown to be optimal in terms of synchrony and knowledge connectivity among participants in the system.
Bitcoin: A Peer-to-Peer Electronic Cash System
TLDR
This work proposes a solution to the double-spending problem using a peer-to-peer network, where the network timestamps transactions by hashing them into an ongoing chain of hash-based proof-of-work, forming a record that cannot be changed without redoing the proof- of-work.
In Search of an Understandable Consensus Algorithm
TLDR
Raft is a consensus algorithm for managing a replicated log that separates the key elements of consensus, such as leader election, log replication, and safety, and it enforces a stronger degree of coherency to reduce the number of states that must be considered.
PPCoin: Peer-to-Peer Crypto-Currency with Proof-of-Stake
TLDR
Under this hybrid design proof-of-work mainly provides initial minting and is largely non-essential in the long run thus providing an energyefficient and more cost-competitive peer-to-peer crypto-currency.
Asynchronous consensus and broadcast protocols
TLDR
The class of asynchronous systems with fair schedulers is defined, and consensus protocols that terminate with probability 1 for these systems are investigated, and it is shown that correct processes are necessary and sufficient to achieve Byzantine Agreement.
Beyond One-Third Faulty Replicas in Byzantine Fault Tolerant Systems
TLDR
This paper argues that BFT2F, an extension to the well-known Castro-Liskov PBFT algorithm, can and should bound the system behavior beyond f failures, and has the same liveness and consistency guarantees as PBFT when no more than f replicas fail.
Another advantage of free choice (Extended Abstract): Completely asynchronous agreement protocols
TLDR
This work exhibits a probabilistic solution for this problem, which guarantees that as long as a majority of the processes continues to operate, a decision will be made (Theorem 1).
NeuCoin: The First Secure, Cost-Efficient and Decentralized Cryptocurrency
TLDR
This paper demonstrates how NeuCoin’s proof-of-stake implementation addresses all commonly raised “nothing at stake” objections to generic proof- of-Stake systems, and reviews many of the flaws of proof-Of-work designs to highlight the potential for an alternate cryptocurrency that solves these flaws.
Accountable key infrastructure (AKI): a proposal for a public-key validation infrastructure
TLDR
This paper proposes AKI as a new public-key validation infrastructure, to reduce the level of trust in CAs, and proposes an architecture for key revocation of all entities through checks-and-balances.
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