Master Thesis

Solana Consensus Protocol

Multiple deployed permissionless blockchains today are based on consensus protocols such as proof-of-work (Bitcoin) or proof-of-stake (Ethereum, Cardano, Algorand). The former is based on the idea of solving computationally hard problems in order to publish a block with transactions, while the latter is based on the idea of “stake”, which denotes either the total wealth (amount of coins/tokens) that a participant holds or an amount of wealth that a participant invests into keeping the platform secure by voting with it in the consensus protocol.

Solana [1] introduces a new blockchain architecture based on Proof of History (PoH) - a proof for verifying order and passage of time between events. When used together with proof-of-work or proof-of-stake, PoH can reduce messaging overhead in a Byzantine Fault Tolerant replicated state machine.

The goal of this thesis is to better formalize the protocol described in the white paper [1] by inspecting the available source code [2]. This should lead to an improved insight, (under which conditions it performs better than already existing consensus protocol, which attacks can be prevented and potential pitfalls).


[1] Solana

[2] Solana source code

Contact Luca Zanolini for more information.

Nature of the project: Theory 80%, Systems 20%.