The Application of Private Blockchain to Increase Security in IoT

محورهای موضوعی : مجله بین المللی ریاضیات صنعتی

R. Mahmoudie ¹ , S. Parsa ² , A. M. Rahmani ³

1 - Department of Computer Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.
2 - Department of Computer Engineering, Iran University of Science and Technology, Tehran, Iran.
3 - Department of Computer Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

تاریخ دریافت : 1400/11/04 تاریخ پذیرش : 1400/12/23 تاریخ انتشار : 1401/04/10

کلید واژه: Blockchain, Internet of Things, Security, Block Manager, Scalability, Overlay Network,

چکیده مقاله :

BlockChain (BC) has gotten a lot of interest because of its immutability and accompanying security and privacy benefits. BC has the potential to address the Internet of Things' security and privacy issues (IoT). BC, on the other hand, is computationally expensive, has limited scalability, and incurs significant bandwidth overheads and delays, making it unsuitable for use in the IoT. In this study, we propose a method that optimizes BC for use in IOT environment. we present a hierarchical structure that uses a private BC to increase scalability, reduce network overhead and delay. In the proposed method, devices with high-level resources build a network referred to as the overlay network on devices with low-level resources. The members of the overlay network manage the BC. The arrangement of the block managers at the overlay network level is two-dimensional which removes the focus from IOT management. We use trust technique and voting from direct neighbors to reduce network traffic and overhead costs. The use of factors such as trust, encouragement and penalty of block managers in the overlay network ensures accurate transactions in IOT. We use the new block manager authentication algorithm for authentication in the overlay network. The simulation results show that the proposed algorithm reduces packet overhead and delay in service delivery and increases the scalability of the BC in comparison to the system that uses the base BC. Furthermore, because in the proposed algorithm, the number of effective block managers in voting is limited to direct neighbors, the average time to confirm a block is significantly reduced.

چکیده انگلیسی:

بلاک چین (BC) به دلیل تغییر ناپذیری و مزایای امنیتی و حفظ حریم خصوصی مورد توجه زیادی قرار گرفته است. BC پتانسیل رسیدگی به مسائل امنیتی و حریم خصوصی اینترنت اشیا (IoT) را دارد. از سوی دیگر، BC از نظر محاسباتی گران است، مقیاس پذیری محدودی دارد و هزینه های سربار و تاخیرهای پهنای باند قابل توجهی را متحمل می شود که آن را برای استفاده در اینترنت اشیا نامناسب می کند. در این مطالعه، ما روشی را پیشنهاد می کنیم که BC را برای استفاده در محیط IOT بهینه می کند. ما یک ساختار سلسله مراتبی ارائه می کنیم که از یک BC خصوصی برای افزایش مقیاس پذیری، کاهش سربار شبکه و تاخیر استفاده می کند. در روش پیشنهادی، دستگاه‌هایی با منابع سطح بالا، شبکه‌ای به نام شبکه همپوشانی بر روی دستگاه‌هایی با منابع سطح پایین ایجاد می‌کنند. اعضای شبکه همپوشانی BC را مدیریت می کنند. چیدمان مدیران بلوک در سطح شبکه همپوشانی دو بعدی است که تمرکز را از مدیریت IOT حذف می کند. ما از تکنیک اعتماد و رای گیری از همسایگان مستقیم برای کاهش ترافیک شبکه و هزینه های سربار استفاده می کنیم. استفاده از عواملی مانند اعتماد، تشویق و جریمه مدیران بلاک در شبکه همپوشانی، تراکنش های دقیق در IOT را تضمین می کند. ما از الگوریتم جدید احراز هویت مدیر بلوک برای احراز هویت در شبکه همپوشانی استفاده می کنیم. نتایج شبیه‌سازی نشان می‌دهد که الگوریتم پیشنهادی سربار بسته و تاخیر در ارائه خدمات را کاهش می‌دهد و مقیاس‌پذیری BC را در مقایسه با سیستمی که از پایه BC استفاده می‌کند، افزایش می‌دهد. علاوه بر این، از آنجا که در الگوریتم پیشنهادی، تعداد مدیران بلوک موثر در رای‌گیری به همسایگان مستقیم محدود می‌شود، میانگین زمان تایید یک بلوک به میزان قابل توجهی کاهش می‌یابد.

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