BlackBook

Black-Book is an advanced decentralized exchange (DEX) designed to offer unmatched trading privacy and security by leveraging Trusted Execution Environments (TEEs). Unlike conventional DEX platforms, Black-Book protects user orders and trading activities within secure, hardware-isolated environments, significantly reducing risks such as front-running and market manipulation, while giving access to classic order book like web2 experience native to crypto.

https://www.canva.com/design/DAGWkF4wNxY/7UI0wRU2-VimyphYWoyiWA/edit?utm_content=DAGWkF4wNxY&utm_campaign=designshare&utm_medium=link2&utm_source=sharebutton

We leverage SGX intel TEE technology, to proccess orders on a secure but fast manner with a troughtput and match time comparable to a standard cex orderbook, but with all the security and simplicity provided by on chain settlement, and the privacy and trust of TEE, Only Level 2 order book data is exposed, and the trade matching remains private. we did not use many libraries aside from the basics and build all raw logic

On chain, we have a contract for handling orders, funds, and settlement.

On the SGX

We handle trade matching, trade execution, and a in memory order book.

Outside on the machine running the TEE, we there's also the crucial task of handling, the read-write from our trusted enviroment.

The backend has multiple components,

A listner that reads every block, looking for the contract events, a handler passing the info to the TEE api, and back to our backend, an executor, to sign and broadcast the on chain settelement.