Truxen: A Trusted Computing Enhanced Blockchain
This addresses security and scalability issues in blockchain systems for applications requiring trusted computing, though it appears incremental as it builds on existing Trusted Computing concepts.
The authors tackled the problem of enhancing blockchain security and functionality by introducing Truxen, a blockchain that uses a Proof of Integrity protocol based on Trusted Computing to verify node identity and integrity, resulting in a system that enables secure remote calls to off-chain applications and handles in-deterministic tasks.
Truxen is a Trusted Computing enhanced blockchain that uses Proof of Integrity protocol as the consensus. Proof of Integrity protocol is derived from Trusted Computing and associated Remote Attestations, that can be used to vouch a node's identity and integrity to all of the other nodes in the blockchain network. In this paper we describe how Trusted Computing and Proof of Integrity can be used to enhance blockchain in the areas of mining block, executing transaction and smart contract, protecting sensitive data. Truxen presents a Single Execution Model, that can verify and execute transaction and smart contract in a solo node, consequently enables remote calls to off-chain applications and performs in-deterministic tasks.