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Listar por autor "Sayeed, Sarwar"

RiuNet: Repositorio Institucional de la Universidad Politécnica de Valencia

Listar por autor "Sayeed, Sarwar"

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    Assessing Blockchain Consensus and Security Mechanisms Against the 51% Attack 
    Sayeed, Sarwar; Marco-Gisbert, Héctor (MDPI AG, 2019-05-01)
    [EN] The 51% attack is a technique which intends to fork a blockchain in order to conduct double-spending. Adversaries controlling more than half of the total hashing power of a network can perform this attack. In a similar ...
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    Control-Flow Integrity: Attacks and Protections 
    Sayeed, Sarwar; Marco-Gisbert, Héctor; Ripoll-Ripoll, Ismael; Birch, Miriam (MDPI AG, 2019-10-10)
    [EN] Despite the intense efforts to prevent programmers from writing code with memory errors, memory corruption vulnerabilities are still a major security threat. Consequently, control-flow integrity has received significant ...
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    DNS-IdM: A Blockchain Identity Management System to Secure Personal Data Sharing in a Network. 
    Kassem, Jamila Alsayed; Sayeed, Sarwar; Marco-Gisbert, Héctor; Pervez, Zeeshan; Dahal, Keshav (MDPI AG, 2019-08-01)
    [EN] Identity management (IdM) is a method used to determine user identities. The centralized aspect of IdM introduces a serious concern with the growing value of personal information, as well as with the General Data ...
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    Proof of Adjourn (PoAj): A Novel Approach to Mitigate Blockchain Attacks. 
    Sayeed, Sarwar; Marco-Gisbert, Héctor (MDPI AG, 2020-09-22)
    [EN] The blockchain is a distributed ledger technology that is growing in importance since inception. Besides cryptocurrencies, it has also crossed its boundary inspiring various organizations, enterprises, or business ...
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    Smart Contract: Attacks and Protections 
    Sayeed, Sarwar; Marco-Gisbert, Héctor; Caira, Tom (Institute of Electrical and Electronics Engineers, 2020)
    [EN] Smart contracts are programs that reside within decentralized blockchains and are executed pursuant to triggered instructions. A smart contract acts in a similar way to a traditional agreement but negates the necessity ...