Stellar Lumens (XLM)
|Coin Proof||Federated Byzantine Agreement|
|Algorithm||Stellar Consensus Protocol|
Byzantine agreement has long enabled distributed systems to achieve consensus with efficiency, standard cryptographic security, and flexibility in designating trusted participants.
More recently, Bitcoin introduced the revolutionary notion of decentralized consensus, leading to many new systems and research challenges.
Stellar introduces federated Byzantine agreement (FBA), a model for achieving decentralized consensus while preserving the traditional benefits of Byzantine agreement.
The key distinction between FBA and prior Byzantine agreement systems is that FBA forms quorums from participants’ individual trust decisions, allowing an organic growth model similar to that of the Internet. The Stellar Consensus Protocol (SCP) is a construction for FBA that achieves optimal safety against ill-behaved participants.
Note: Stellar (STR) and Stellar Lumens (XLM) describe the same native currency of Stellar. - source