Доклад разработчиков Exonum на третьем митапе сообщества блокчейн-разработчиков Санкт-Петербурга
- 1. Blockchain for Web-Applications DenisKolodin AlekseySidorov
- 2. Blockchain for Web-Applications 2 Exonum is an extensible framework for blockchain projects What is Exonum? • BFT Algorithm • Light Client • Anchoring • Rust
- 3. Blockchain for Web-Applications 3 Traditional Web-Application Architecture Admin is a King: • Can change any data • Can lose sensitive data • Absolute faith a server or two maybe...
- 4. Blockchain for Web-Applications 4 AWSAzureGCE Office Blockchain-driven Web-Application Architecture Exonum Node 1 Exonum Node 2 Exonum Node 3 Exonum Node N CONSENSUS
- 5. Blockchain for Web-Applications 5 Key pair User Authentication Public Key Private Key Exonum Node Transaction Only user modifies data. Signed User doesn’t need to pass special registration process. User creates own key pair
- 6. Blockchain for Web-Applications 6 Offline signing of transactions Create and sign transaction offline… Exonum Node and send it to Exonum Node (by another device) Only owners can change their data (depends on business logic)
- 7. Blockchain for Web-Applications 7 Exonum Node 1 Exonum Node 2 Exonum Node 3 Exonum Node N Fault! Exonum Node 3.1 CONSENSUS Fault tolerance, hardware updates, scaling Audit Node 1 Audit Node 2 Scaling up throughput
- 8. Blockchain for Web-Applications 8 Proofs are the core of integrity Exonum contains merkle-tree indices to maintain proofs • Data “fingerprints” • Shared confidence • Digital law enforcement
- 9. Blockchain for Web-Applications 9 Service Data Keys Transactions Implement all necessary services (contracts) with Exonum framework Add light client to browser application and let users derive protected keys. Configure the web-server to pass transaction to Exonum Node Migrate initial data to blockchain with a genesis block. Launch! Deploy Exonum Nodes and enjoy the blockchain in your application! Integrate to existent Web-Application
- 10. Questions?