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Cross-Chain Interoperability

Moving value and messages between blockchains without trusting a single bridge or relay.

Independent blockchains increasingly need to talk to each other, yet most bridges still concentrate trust in a small committee or a single operator. We design protocols where that trust is minimized or removed altogether.

Our work spans hash time-locked contracts, light-client verification and market-based multi-relay architectures, with an eye on liveness, cost and resistance to linkability attacks.

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  1. 012026JournalDOI

    zk-HTLCA formally verified defense against linkability attacks in trust-minimized cross-chain networks

    Tuan-Dung Tran, Bao Huynh, Van-Hau Pham

    Computer Networks

  2. 022026JournalDOI

    AcheronA market-based multi-relay architecture for adaptive and secure cross-chain communication

    Tuan-Dung Tran, Quang Vu, Bao Huynh, Van-Hau Pham

    Internet of Things

  3. 032026JournalDOI

    CrossGuardA multi-modal few-shot learning framework for detecting cross-chain smart contract vulnerabilities

    Tuan-Dung Tran, Khoi Le Quoc, Van-Hau Pham

    Cluster Computing

  4. 042026JournalDOI

    CrossTrust-IoTAn Adaptive Reinforcement Learning Framework for Cross-Chain Trust in Resource-Constrained IoT Networks

    Tuan-Dung Tran, Phuong-Dai Bui, Nguyen Tan Cam, Van-Hau Pham

    IEEE Internet of Things Journal

  5. 052026JournalDOI

    Evolutionary soft computing for interpretable exploit generation in cross-chain bridges

    Tuan-Dung Tran, Phuong-Dai Bui, Van-Hau Pham

    Applied Soft Computing

  6. 062026JournalDOI

    EdgeTrust-ShardHierarchical blockchain architecture for federated learning in cross-chain IoT ecosystems

    Tuan-Dung Tran, Phuong-Dai Bui, Van-Hau Pham

    Journal of Systems Architecture

  7. 072026JournalDOI

    PoVIChainLightweight and verifiable cross-chain interoperability for heterogeneous edge networks

    Tuan-Dung Tran, Tam Truong Ha Huy, Van-Hau Pham

    Internet of Things

  8. 082026JournalDOI

    Navigating and orchestrating Web 3.0 innovation challenges: A theory of cross-chain ecosystem strategy

    Tuan-Dung Tran, Phuong-Dai Bui, Van-Hau Pham

    Journal of Engineering and Technology Management

  9. 092026JournalDOI

    Zk-InterChainPrivacy-preserving protocol for cross-chain interactions between consortium and public blockchains

    Tuan-Dung Tran, Trung-Kien Tran, Bao Huynh

    The Journal of Supercomputing

  10. 102026ConferenceDOI

    DynaGuardA Dynamic Trust-Weighted Mechanism for BFT Attack Resilience in Cross-Shard Blockchain Networks

    Tuan-Dung Tran, Phuong-Dai Bui, Thinh Le, Van-Hau Pham

    Communications in Computer and Information Science (Computational Intelligence in Engineering Science)

  11. 112025JournalDOI

    DAVE-CCA decentralized, access-controlled, verifiable ecosystem for cross-chain academic credential management

    Tuan-Dung Tran, Huynh Phan Gia Bao, Nguyen Tan Cam, Van-Hau Pham

    Journal of Information Security and Applications

  12. 122025ConferenceDOI

    LotusA Hybrid Cross-Chain Framework for Privacy-Preserving Digital Identity

    TD Tran, HPG Bao, TM Trong, NT Cam, VH Pham

    24th Intl. Symposium on Communications and Information Technologies (ISCIT, IEEE)

  13. 132024ConferenceDOI

    Zk-AuctionA Cross-Blockchain System for Efficient Auctions combining Zero-Knowledge Proof and NFT

    Tuan-Dung Tran, Phong Khuu Minh, Chuong Le Bao Dang, Cam Nguyen Tan, Van-Hau Pham

    Proceedings of the 2024 9th International Conference on Intelligent Information Technology

  14. 142024ConferenceDOI

    ChainSniperA Machine Learning Approach for Auditing Cross-Chain Smart Contracts

    Tuan-Dung Tran, Kiet Anh Vo, Duy The Phan, Cam Nguyen Tan, Van-Hau Pham

    Proceedings of the 2024 9th International Conference on Intelligent Information Technology

  15. 152024ConferenceDOI

    MedichainA Multi-chain Based System for Managing Prescription Medications Using Zero Knowledge Proofs

    Tuan-Dung Tran, Minh Tran Duc, Trang Le Tran Thuy, Phan The Duy, Nguyen Tan Cam, Van-Hau Pham

    Lecture Notes in Networks and Systems (Intl. Conf. on Intelligent Systems and Networks)

  16. 162024ConferenceDOI

    MIDASA Multi-chain Interoperable Data and Access System for Healthcare

    Bui Kim Ngan Nguyen, Binh Thuc Tram Nguyen, Tuan-Dung Tran, Phan The Duy, Van-Hau Pham

    Lecture Notes in Computer Science (Computational Data and Social Networks)

  17. 172024ConferenceDOI

    CrossCertA Privacy-Preserving Cross-Chain System for Educational Credential Verification Using Zero-Knowledge Proof

    Tuan-Dung Tran, Phong Khuu Minh, Trang Le Tran Thuy, Phan The Duy, Nguyen Tan Cam, Van-Hau Pham

    LNICST (Industrial Networks and Intelligent Systems)

  18. 182023ConferenceDOI

    Enhancing Blockchain Interoperability Through Sidechain Integration and Valid-Time-Key Data Access Control

    Tuan-Dung Tran, Kiet Anh Vo, Nguyen Binh Thuc Tram, Ngan Nguyen Bui Kim, Phan The Duy, Van-Hau Pham

    LNDECT (Intelligence of Things: Technologies and Applications)