Academic Journal
A Blockchain-Enabled Group Covert Channel against Transaction Forgery
| العنوان: | A Blockchain-Enabled Group Covert Channel against Transaction Forgery |
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| المؤلفون: | Tongzhou Shen, Liehuang Zhu, Feng Gao, Zhuo Chen, Zijian Zhang, Meng Li |
| المصدر: | Mathematics, Vol 12, Iss 2, p 251 (2024) |
| بيانات النشر: | MDPI AG |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | blockchain network, steganography, covert communication, covert channel, Mathematics, QA1-939 |
| الوصف: | As a decentralized network infrastructure, the data sent to the blockchain are public and temper-evident. The cover of massive normal transactions in a blockchain network is ideal for constructing a stable and reliable covert channel to achieve one-to-many group covert communication. Existing blockchain-based covert communication schemes face challenges in balancing concealment, embedding rate and filtering efficiency, making them unsuitable for direct extension to group scenarios. Adopting a key-leakage scheme can increase the channel capacity while maintaining high concealment from external adversaries. However, it will also expose more knowledge to the receiver. A malicious receiver has the ability to steal a sender’s identity or replay historical transactions to control the entire channel. In this paper, we define the capabilities of malicious receivers in blockchain-based group covert communication scenarios and propose a group covert communication scheme resistant to transaction forgery attacks. Theoretical analysis and experiments prove that our covert transactions do not have any transaction correlativity, ensuring the unique authenticity of the sender’s identity while maintaining supreme concealment compared with the existing schemes. The precision and recall of machine learning detection results can reach 0.57–0.62 (0.5 is the ideal value). |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2227-7390 |
| Relation: | https://www.mdpi.com/2227-7390/12/2/251; https://doaj.org/toc/2227-7390; https://doaj.org/article/bd59e9cfd15546fc8f4b8ed361b9aa5c |
| DOI: | 10.3390/math12020251 |
| الاتاحة: | https://doi.org/10.3390/math12020251 https://doaj.org/article/bd59e9cfd15546fc8f4b8ed361b9aa5c |
| رقم الانضمام: | edsbas.CCF4A4D6 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 22277390 |
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| DOI: | 10.3390/math12020251 |