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The Role of Blockchain in Cyber Security

Semiconductor Science and Information Devices 2021年第1期3卷 1-9页

作者： Dylan Rafferty kevin curran School of Computing Engineering&Intelligent SystemsUlster UniversityUK

2021 Cyber security breaches are on the rise globally.Due to the introduction of legislation like the EU’s General Data Protection Regulation(GDPR),companies are now subject to further financial penalties if they fail to meet requirements in protecting user information.In 2018,75%of CEOs and board members considered cyber security and technology acquisitions among their top priorities,and blockchain based solutions were among the most considered options.Blockchain is a decentralised structure that offers multiple security benefits over traditional,centralised network architectures.These two approaches are compared in this chapter in areas such as data storage,the Internet of Things(IoT)and Domain Name System(DNS)in order to determine blockchain’s potential in the future of cyber security.

关键词： Blockchain Cybersecurity Distibuted ledgers Bitcoin Cryptocurrencies

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The Role of Multi-factor Authentication for Modern Day Security

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Semiconductor Science and Information Devices 2021年第1期3卷 16-23页

作者： Joseph Williamson kevin curran School of Computing Engineering&Intelligent SystemsUlster UniversityUK

Multi-factor Authentication(MFA)often referred to as Two-factor Authentication(2FA),which is a subset of MFA,is the practice of implementing additional security methods on top of a standard username and password to help authenticate the identity of a user and increase the security of data.This chapter will investigate the problem with username and password logins,the different types of authentication,current best practice for multi-factor authentication and interpretations about how the technology will grow in the upcoming years.

关键词： Multi-factor authentication Cybersecurity 2FA

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Security Vulnerabilities in Microprocessors

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Semiconductor Science and Information Devices 2021年第1期3卷 24-32页

作者： Benjamin Ashby Smith kevin curran School of Computing Engineering&Intelligent SystemsUlster UniversityUK

Microprocessors such as those found in PCs and smartphones are complex in their design and nature.In recent years,an increasing number of security vulnerabilities have been found within these microprocessors that can leak sensitive user data and information.This report will investigate microarchitecture vulnerabilities focusing on the Spectre and Meltdown exploits and will look at what they do,how they do it and,the real-world impact these vulnerabilities can cause.Additionally,there will be an introduction to the basic concepts of how several PC components operate to support this.

关键词： Microprocessors Cybersecurity Microarchitecture security

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Extracting Cryptographic Keys *** Applications

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Semiconductor Science and Information Devices 2021年第2期3卷 1-11页

作者： Shaun Mc Brearty william Farrelly kevin curran Institute of Technology SligoIreland Letterkenny Institute of Technology LetterkennyIreland Ulster University DerryUnited Kingdom

In the absence of specialized encryption hardware,cryptographic operationsmust be performed in main memory.As such,it is common place for cybercriminals to examine the content of main memory with a view to retrievinghigh-value data in plaintext form and/or the associated decryption key.Inthis paper,the author presents a number of simple methods for identifyingand extracting crypfographic keys from memory dumps of softwareapplications that utilize the *** Framework,as well as source-code level countermeasures to protect against same.Given the EXE file ofan application and a basic knowledge of the cryptographic libraries utilizedin the NET Framework,the author shows how to create a memory dumpof a running application and how to extract cryptographic keys from sameusing WinDBG-without any prior knowledgel of the cryptographic keyutilized.Whilst the proof-of-concept application utilized as part of thispaper uses an implementation of the DES cipher,it should be noted that thesteps shown can be utilized against all three generations of symmetric andasymmetric ciphers supported within the NET Framework.

关键词： Cryptography Cryptanalysis Memory dump analysis Memory hygiene Key finding attack Secure coding .NET framework

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