Security and Privacy Challenges in Cross-Chain Systems

A special issue of Blockchains (ISSN 2813-5288).

Deadline for manuscript submissions: 30 September 2025 | Viewed by 22

Special Issue Editors


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Guest Editor
School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China
Interests: applied cryptography; mobile crowdsourcing
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China
Interests: cryptography; blockchain; quantum computation
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Information Engineering, Minzu University of China, Beijing 100081, China
Interests: artificial intelligence security; federated learning; data security; privacy protection
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Cyber Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Interests: cloud computing; future network security

Special Issue Information

Dear Colleagues,

As blockchain technology continues to develop, the ability to transfer assets and data securely across multiple chains is becoming increasingly essential. To meet this growing demand, cross-chain technology has emerged as a pivotal innovation, enabling seamless interoperability between different blockchain networks. This technology allows for the connection and interaction of distinct blockchain platforms, facilitating the transfer of assets and information across various networks, and expanding the overall capabilities and applications of blockchain technology.

However, the implementation of cross-chain technology introduces a range of security and privacy challenges. The interconnection of different blockchains increases the risk of attacks, such as double-spending and replay attacks, which exploit the vulnerabilities in synchronizing and validating transactions across multiple chains. Furthermore, the diversity in consensus mechanisms and cryptographic protocols across these chains adds to the complexity, making it difficult to ensure robust security and protect user data from potential breaches. Given these challenges, there is a pressing need to develop solutions that effectively balance the security and privacy requirements with the inherent benefits of cross-chain technology.

This Special Issue focuses on exploring cutting-edge research and solutions that tackle the critical security and privacy issues in cross-chain technology. We encourage the submission of original research and comprehensive review articles that contribute to the understanding and enhancement of security in cross-chain operations. Potential topics include, but are not limited to, the following:

  • Secure transaction protocols in cross-chain environments;
  • Privacy-preserving cross-chain communication methods;
  • Cross-chain identity authentication and access control technologies;
  • Defence against malicious attack methods in cross-chain systems;
  • Design and implementation of scalable and secure cross-chain frameworks;
  • Secure and efficient consensus mechanism in cross-chain systems;
  • Regulation and auditing of cross-chain transactions and interactions;
  • Security and functionality of cross-chain smart contracts.

Dr. Chuan Zhang
Prof. Dr. Licheng Wang
Dr. Xiangyun Tang
Dr. Jianan Hong
Dr. Wenlin Han
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Blockchains is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • secure transaction protocols in cross-chain environments
  • privacy-preserving cross-chain communication methods
  • cross-chain identity authentication and access control technologies
  • defence against malicious attack methods in cross-chain systems
  • design and implementation of scalable and secure cross-chain frameworks
  • secure and efficient consensus mechanism in cross-chain systems
  • regulation and auditing of cross-chain transactions and interactions
  • security and functionality of cross-chain smart contracts

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Published Papers

This special issue is now open for submission.
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