Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"51% attack"”.
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Shell Game: Randomized representative based election to defend against 51% attacks in Crowd sensing frameworks
… efficient fabric for impeding activities like 51% attack, maintaining the integrity of the data and reduce monetary loss for the data aggregator during such attacks. This has been achieved by implementing a moving target defense in a Randomized representative based election with a proof of …
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Blockchain and Distributed Consensus: From Security Analysis to Novel Applications
… metrics, providing insights on the actual "51% attack" threshold (safety) and mining revenue distribution (fairness). The external data truthfulness challenge is another fundamental challenge concerning the decentralized applications running on top of blockchain. The validity of external …
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Security and Privacy for Internet of Things: Authentication and Blockchain
… a major issue especially in the light of current attacks on Facebook and Uber. Research efforts in both the academic and the industrial fields have been focused on providing security and privacy solutions that are specific to IoT systems. These solutions include systems to manage keys, systems to …
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Blockchain Security: Double-Spending Attack and Prevention
… are vulnerable to hashrate-based double-spending attacks due to abuse of majority rule. Through building a private fork of Litecoin and executing a double-spending attack this thesis examines the mechanics and principles behind the attack. This thesis also conducts a survey of preventative …