Cyferio Hub

Cyferio Hub is a confidential rollup router designed to bring scalability, privacy, and interoperability to blockchain ecosystems such as Ethereum, Bitcoin, and Solana. Together with the Cyferio SDK, which complements this by simplifying the creation and management of confidential (FHE-based) rollups, offering developers a straightforward way to build privacy-preserving applications.

Overview

Cyferio Hub, built on top of Substrate, serves as a cache layer that links rollups across various blockchain networks. This integration simplifies cross-chain communication, enhances scalability, and allows developers to easily build and deploy confidential applications to different ecosystems.

Architecture of Cyferio Hub

Project Details

Overall, Cyferio Labs' solutions aim to unlock confidential applications with FHE rollups that are connected to blockchain ecosystems. We provide fundamental infrastructures for confidential applications, with Cyferio SDK serving as the FHE rollup framework and Cyferio Hub as a rollup router connecting these confidential rollups to the L1/L2 blockchains, Data Availability Layers, and other ecosystems. Since Cyferio Hub is built on top of Substrate, it is highly modular and can be easily integrated with other ecosystems. We empower developers to build applications with advanced privacy-preserving use cases beyond the capabilities of general-purpose FHE rollups.

Additionally, scalability and transaction processing speed will be significantly enhanced through our collaboration with DragonflyDB to develop an in-memory storage solution. This integration ensures robust support for cross-chain interoperability and delivers a scalable, high-performance solution tailored for large-scale transaction processing of FHE rollups.

Getting Started

Build

Use the following command to build the node without launching it:

cargo build --release

Local Single-Node Development Chain

The following command starts a single-node development chain that doesn't persist state:

./target/release/cyferio-hub-node --dev --unsafe-rpc-external

Connect rollup to Cyferio Hub

To connect a rollup to Cyferio Hub, you need to set up the rollup node and configure it to use Cyferio Hub as its router.

1. Configure the rollup node to use Cyferio Hub as its router. Specifically, you need to set the feature flag cyferio_da to default in the rollup node's Cargo.toml file. Visit Cyferio SDK for more details.

# cyferio-sdk/crates/rollup/Cargo.toml

[features]
default = ["cyferio_da", "risc0"]

2. Start the rollup node. (before starting the rollup node, make sure Cyferio Hub node is running)

3. Observe the hub's logs to see if the transaction from the rollup node is successfully routed and processed. Check the details in our demo here.