Publication Date

Spring 2025

Degree Type

Master's Project

Degree Name

Master of Science in Computer Science (MSCS)

Department

Computer Science

First Advisor

Thomas Austin

Second Advisor

Katerina Potika

Third Advisor

Mark Stamp

Keywords

Blockchain, Cross-chain, Data Oracle, Decentralization, FROST signatures, Cryptography

Abstract

The interoperability of heterogeneous blockchain networks is the basis for the widespread application of blockchains in various fields. Cross-chain data oracles play a significant role in enabling distributed applications to exchange data and assets across different blockchains, thereby greatly enriching and expanding the application scenarios and use of blockchains. With the continuous advancement of blockchain technology, more and more researchers and industry participants have begun to focus on developing cross-chain data oracles. Current cross-chain data oracles face issues with trust, as they rely on centralized intermediaries or limited validator networks, increasing the risk of manipulation or single points of failure. They also struggle with latency and scalability, making it challenging for real-time data transfers between blockchains. Additionally, interoperability across different consensus mechanisms and protocols adds complexity, leading to compatibility and integration issues across networks. New technologies have been proposed recently, such as decentralized networks for data verification and FROST decentralized credentials in cryptographic solutions. This paper proposes a novel approach to implement cross-chain data oracles that provide small and inexpensive data proofs using FROST signatures for a secure interoperating blockchain technology ecosystem. This FROST signature enables extremely cheap data proofs that cost only 30k gas to verify and are only 64 bytes in size.

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