ClaveChain

Blockchain retrieving trusted outer source data through intel SGX.

Introduction

• Blockchain is using Ethereum and retrieving outer source data based on TLS.
• Use Intel SGX as trusted middle man.
• Use curl for http request to call blockchain.
• Use mbedTLS for SGX ported by fanz for TLS and ecdsa stuff.
• Use keccak sha3 hash implementation here.

Source code structure

• Chain: Ethereum smart contracts
• Clave: Middle man monitor
• Geth: Ethereum geth config and starting command
• GethViewer: Single page for local geth data viewer
• OuterData: Stub server for retrieving trusted outer source data
• Tools: Helping tools

Related work

• Town Crier: An Authenticated Data Feed for Smart Contracts