ارزهای رمزنگاری شده در بلاکچین
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ارزهای رمزنگاری شده در بلاکچین

عنوان فارسی مقاله: امنیت ارزهای رمزنگاری شده در فناوری بلاکچین: وضعیت کنونی، چالش ها و چشم اندازهای آینده
عنوان انگلیسی مقاله: Security of Cryptocurrencies in blockchain technology: State-of-art, challenges and future prospects
مجله/کنفرانس: مجله کاربردهای شبکه و رایانه – Journal of Network and Computer Applications
رشته های تحصیلی مرتبط: مهندسی کامپیوتر
گرایش های تحصیلی مرتبط: امنیت اطلاعات، مهندسی الگوریتم و محاسبات
کلمات کلیدی فارسی: بلاکچین، دفتر کل توزیع ‌شده، عدم تمرکز، ارز رمزنگاری شده، ارز دیجیتال، الگوریتم های اجماع، قرارداد هوشمند، امنیت
کلمات کلیدی انگلیسی: Blockchain, Distributed Ledger, Decentralization, Cryptocurrency, Digital Currency, Consensus Algorithms, Smart Contract, Security
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus – Master Journals List – JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.jnca.2020.102635
دانشگاه: Department of Computer Science and Information Systems, Birla Institute of Technology and Science, Pilani,, India
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2020
ایمپکت فاکتور: 7.092 در سال 2019
شاخص H_index: 77 در سال 2020
شاخص SJR: 0.903 در سال 2019
شناسه ISSN: 1084-8045
شاخص Quartile (چارک): Q1 در سال 2019
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 80
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
آیا این مقاله مدل مفهومی دارد: ندارد
آیا این مقاله پرسشنامه دارد: ندارد
آیا این مقاله متغیر دارد: ندارد
کد محصول: E14997
رفرنس: دارای رفرنس در داخل متن و انتهای مقاله
فهرست انگلیسی مطالب

Abstract


۱٫ Introduction


۲٫ Overview of blockchain


۳٫ Blockchain technologies: forks and consensus methodologies


۴٫ Taxonomy of blockchain


۵٫ Blockchain platforms and ITS security challenges


۶٫ Security enhancements in blockchain


۷٫ Concluding remarks


Authors statement


Declaration of competing interest


Acknowledgement


References

نمونه متن انگلیسی مقاله

Abstract


In contemporary era of technologies, blockchain has acquired tremendous attention from various domains. It has wide spectrum of applications ranging from finance to social services and has greatly influenced the emerging business world. Since, blockchain technology is getting embedded in the e-commerce services, the cryptocurrencies are gaining huge prevalence. Bitcoin and ethereum are few suchcryptocurrencies, which have utilized decentralised nature of blockchain. Blockchain can be considered as a distributed database system containing immutable ledgers, which are prone to attack by malicious users. Although, from the initial digital currency to the present smart contract, the utilities of blockchain have been harnessed, the innovative technology has to rely on cryptography for its security. There are several reports, which emphases on the vulnerabilities and security of blockchain, however, there is a lack of a comprehensive and methodical survey in both application and technical views. In this survey article, the authors cover various aspects related to blockchain including its taxonomies and the situations in which a particular category of blockchain should be applied. The authors also focusses on the structure of blockchain and the working of the ongoing transactions in the cryptocurrency network. In addition, the authors also specify various categories of consensus protocols, smart contracts, forks, techniques for generating the consensus. A detailed taxonomy of blockchain along with their features and related real-world applications is also discussed. In addition, existing key platforms of blockchain related to the cryptocurrencies, hyperledger and multichain are also discussed. Existing emerging vulnerabilities of blockchain related to the recent attacks on bitcoin and etherum is also presented along with the defensive methodologies and future trends in blockchain.


Introduction


The blockchain technology refers to the immutable public ledgers, which are constructed using decentralized techniques and generally do not contain a trusted authority. This remarkable technique was implemented for enabling the advent of cryptocurrencies in which the exchange of digital assets was take place in decentralized systems. Subsequently, a number of digital currencies has also emerged like Ripple, Bitcoin, Litecoin, Ethereum etc. Blockchain and the cryptocurrencies involved, permitted entities to accomplish economic transactions in the absence of a central authority.It further act as a third party for authentication, while presenting a data storage technique, which is available to all and are legitimate [1]. In addition to these features, this exceptional technology hampers any change in the publicized transactions [140-141]. In the year 1991, a chain of data, containing digital signature, was utilized as an automated ledger, which signed the documents in a way to assure that any adversary did not tamper the documents in the chain in any way [2]. This was the primary concept for the emergence of blockchain technology. This stupendous technology was first implemented for electronic currency in the year 2008 in a research article which discussed Bitcoin cryptocurrency [3].

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