Order Flow Encryption
Order Flow Encryption is the practice of obfuscating the details of pending trade orders as they travel from a user interface to a matching engine or mempool. This technique is vital in preventing predatory actors from observing incoming liquidity and front-running or sandwiching transactions.
By masking the size, direction, and price of orders, encryption ensures that market microstructure remains fair and efficient. It acts as a defense against information leakage that could otherwise be exploited by high-frequency trading bots.
This is particularly relevant in decentralized exchanges where the public nature of the mempool often exposes pending trades to exploitation. Implementing such encryption is a key step in reducing systemic risk associated with adversarial order front-running.