In recent years, the emergence of quantum computing has created substantial problems to the security of cryptographic methods often utilized in blockchain technology. As quantum computers become more powerful, the possibility of them breaking classical cryptography algorithms such as ECDSA grows, forcing researchers to look for quantum-resistant alternatives. Post-quantum cryptographic algorithms, such as Falcon, have emerged as possible alternatives for long-term blockchain security. This study examines the performance and security of classical (ECDSA) and post-quantum (Falcon) blockchains under a variety of attack scenarios, including DDoS, replay, and Sybil attacks. Our research will evaluate the computational and resource needs of several cryptographic approaches, as well as examine how these infrastructures respond under various attack situations and emphasize the trade-offs between higher security and resource consumption. Our results show that, while post-quantum blockchains are more resistant to quantum computing threats, they need much more CPU and memory than their classical equivalents. This increased resource requirement affects scalability and efficiency, especially in high-load scenarios. Despite their resistance to quantum attacks, post-quantum blockchains are still vulnerable to traditional attack vectors, as demonstrated by the significant computing cost seen throughout our testing. These research results underscore the need of balanced blockchain systems that successfully handle the trade-offs between security and performance.

Hajar Dahhak

Nadia Afifi

Imane Hilal

Journal of Computer Information Systems

计算机信息系统杂志 (JCIS) 旨在发表探索信息系统和技术研究的手稿，从而在全球范围内开发计算机信息系统。我们鼓励涵盖以下主题领域的手稿：-计算机信息中的分析、商业智能、决策支持系统系统 - 移动技术、移动应用程序 - 人机交互 - 信息和/或技术管理、组织行为与文化 - 数据管理、数据挖掘、数据库设计和开发 - 电子商务技术和计算机信息系统中的问题 - 计算机系统企业架构、企业资源规划 - IT 的伦理和法律问题 - 健康信息学 - 信息保障和安全 - 网络安全、网络取证 - IT 项目管理 - 计算机信息系统中的知识管理- 网络和/或电信 - 系统分析、设计和/或实施 - 网络编程和开发 - 课程问题、教学问题、顶峰课程、专业课程认证 - 电子学习技术、分析、未来

The Journal of Computer Information Systems aims to publish manuscripts that explore research in information systems and technology, thereby advancing the development of computer information systems globally. We encourage submissions covering the following areas: - Analytics and business intelligence in computer information - Decision support systems - Mobile technologies and applications - Human-computer interaction - Information and technology management, organizational behavior, and culture - Data management, data mining, database design, and development - E-commerce technologies and issues in computer information systems - Computer system architecture and enterprise resource planning - Ethical and legal issues in IT - Health informatics - Information assurance and security - Cybersecurity and digital forensics - IT project management - Knowledge management in computer information systems - Networking and telecommunications - Systems analysis, design, and implementation - Web programming and development - Curriculum issues, teaching issues, capstone courses, and professional course accreditation - E-learning technologies, analytics, and future trends.

《Journal of Computer Information Systems》旨在发表关于信息系统和技术研究的手稿，以推动全球计算机信息系统的发展。我们鼓励涵盖以下主题领域的稿件：- 计算机信息中的分析与商业智能 - 决策支持系统 - 移动技术与应用 - 人机交互 - 信息与技术管理、组织行为与文化 - 数据管理、数据挖掘、数据库设计与开发 - 电子商务技术及其在计算机信息系统中的应用 - 企业架构与企业资源规划 - IT伦理与法律问题 - 健康信息学 - 信息保障与安全 - 网络安全与网络取证 - IT项目管理 - 计算机信息系统中的知识管理 - 网络与电信 - 系统分析、设计与实施 - 网络编程与开发 - 课程问题、教学问题、顶峰课程与专业课程认证 - 电子学习技术、分析与未来发展

Category	Quartile
管理学	4
管理学, 计算机信息系统	4

Security Analysis of Classical and Post-Quantum Blockchains

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Journal Info

Category	Quartile
COMPUTER SCIENCE, INFORMATION SYSTEMS	2