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Dissertations / Theses on the topic 'Cloud Data Security Scheme'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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1

Bartlett, Alex Michael. "SoK: A Practical Cost Comparison Among Provable Data Possession Schemes." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1819.

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Provable Data Possession (PDP) schemes provide users with the ability to efficiently audit and verify the integrity of data stored with potentially unreliable third-parties, such as cloud storage service providers. While dozens of PDP schemes have been developed, no PDP schemes have been practically implemented with an existing cloud service. This work attempts to provide a starting point for the integration of PDP schemes with cloud storage service providers by providing a cost analysis of PDP schemes. This cost analysis is performed by implementing and analyzing five PDP schemes representati
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2

Chenette, Nathan Lee. "Symmetric schemes for efficient range and error-tolerant search on encrypted data." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/48976.

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Large-scale data management systems rely more and more on cloud storage, where the need for efficient search capabilities clashes with the need for data confidentiality. Encryption and efficient accessibility are naturally at odds, as for instance strong encryption necessitates that ciphertexts reveal nothing about underlying data. Searchable encryption is an active field in cryptography studying encryption schemes that provide varying levels of efficiency, functionality, and security, and efficient searchable encryption focuses on schemes enabling sub-linear (in the size of the database) sear
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Huang, Xueli. "Achieving Data Privacy and Security in Cloud." Diss., Temple University Libraries, 2016. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/372805.

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Computer and Information Science<br>Ph.D.<br>The growing concerns in term of the privacy of data stored in public cloud have restrained the widespread adoption of cloud computing. The traditional method to protect the data privacy is to encrypt data before they are sent to public cloud, but heavy computation is always introduced by this approach, especially for the image and video data, which has much more amount of data than text data. Another way is to take advantage of hybrid cloud by separating the sensitive data from non-sensitive data and storing them in trusted private cloud and un-trus
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4

Oduyiga, Adeshola Oyesanya. "Security in Cloud Storage : A Suitable Security Algorithm for Data Protection." Thesis, Mittuniversitetet, Avdelningen för informationssystem och -teknologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-34428.

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The purpose of this thesis work was to conduct a general research on existing security techniques and come up with a considerable algorithm for data security in cloud storage. Cloud storage is an infrastructure or is a model of computer data storage in which the digital data is stored in logical pools. It unifies object storage for both developers and enterprises, from live applications data to cloud archival. It help to save valuable space on PC computers or mobile devices and provides the easy storage and access of data anywhere in the world. However, just as the benefits of cloud computing
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Maddineni, Venkata Sravan Kumar, and Shivashanker Ragi. "Security Techniques for protecting data in Cloud Computing." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3430.

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Context: From the past few years, there has been a rapid progress in Cloud Computing. With the increasing number of companies resorting to use resources in the Cloud, there is a necessity for protecting the data of various users using centralized resources. Some major challenges that are being faced by Cloud Computing are to secure, protect and process the data which is the property of the user. Aims and Objectives: The main aim of this research is to understand the security threats and identify the appropriate security techniques used to mitigate them in Cloud Computing. The main objectives o
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Kaaniche, Nesrine. "Cloud data storage security based on cryptographic mechanisms." Thesis, Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0033/document.

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Au cours de la dernière décennie, avec la standardisation d’Internet, le développement des réseaux à haut débit, le paiement à l’usage et la quête sociétale de la mobilité, le monde informatique a vu se populariser un nouveau paradigme, le Cloud. Le recours au cloud est de plus en plus remarquable compte tenu de plusieurs facteurs, notamment ses architectures rentables, prenant en charge la transmission, le stockage et le calcul intensif de données. Cependant, ces services de stockage prometteurs soulèvent la question de la protection des données et de la conformité aux réglementations, consid
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Kaaniche, Nesrine. "Cloud data storage security based on cryptographic mechanisms." Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0033.

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Au cours de la dernière décennie, avec la standardisation d’Internet, le développement des réseaux à haut débit, le paiement à l’usage et la quête sociétale de la mobilité, le monde informatique a vu se populariser un nouveau paradigme, le Cloud. Le recours au cloud est de plus en plus remarquable compte tenu de plusieurs facteurs, notamment ses architectures rentables, prenant en charge la transmission, le stockage et le calcul intensif de données. Cependant, ces services de stockage prometteurs soulèvent la question de la protection des données et de la conformité aux réglementations, consid
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Dlamini, Moses Thandokuhle. "Combating Data Leakage in the Cloud." Thesis, University of Pretoria, 2020. http://hdl.handle.net/2263/73245.

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The increasing number of reports on data leakage incidents increasingly erodes the already low consumer confidence in cloud services. Hence, some organisations are still hesitant to fully trust the cloud with their confidential data. Therefore, this study raises a critical and challenging research question: How can we restore the damaged consumer confidence and improve the uptake and security of cloud services? This study makes a plausible attempt at unpacking and answering the research question in order to holistically address the data leakage problem from three fronts, i.e. conflict-aware vi
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9

He, Yijun, and 何毅俊. "Protecting security in cloud and distributed environments." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B49617631.

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Encryption helps to ensure that information within a session is not compromised. Authentication and access control measures ensure legitimate and appropriate access to information, and prevent inappropriate access to such resources. While encryption, authentication and access control each has its own responsibility in securing a communication session, a combination of these three mechanisms can provide much better protection for information. This thesis addresses encryption, authentication and access control related problems in cloud and distributed environments, since these problems are ver
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Gholami, Ali. "Security and Privacy of Sensitive Data in Cloud Computing." Doctoral thesis, KTH, Parallelldatorcentrum, PDC, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-186141.

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Cloud computing offers the prospect of on-demand, elastic computing, provided as a utility service, and it is revolutionizing many domains of computing. Compared with earlier methods of processing data, cloud computing environments provide significant benefits, such as the availability of automated tools to assemble, connect, configure and reconfigure virtualized resources on demand. These make it much easier to meet organizational goals as organizations can easily deploy cloud services. However, the shift in paradigm that accompanies the adoption of cloud computing is increasingly giving rise
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11

Yahya, Farashazillah. "A security framework to protect data in cloud storage." Thesis, University of Southampton, 2017. https://eprints.soton.ac.uk/415861/.

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According to Cisco Global Cloud Index, cloud storage users will store 1.6 Gigabytes data per month by 2019, compared to 992 megabytes data per month in 2014. With this trend, it has been shown that more and more data will reside in cloud storage and it is expected to grow further. As cloud storage is becoming an option for users for keeping their data online, it comes with security concerns for protecting data from threats. This thesis addresses the need to investigate the security factors that will enable efficient security protection for data in cloud storage and the relationships that exist
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Imine, Youcef. "Cloud computing security." Thesis, Compiègne, 2019. http://www.theses.fr/2019COMP2520.

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Ces dernières années, nous assistons à une immense révolution numérique de l’internet où de nombreuses applications, innovantes telles que l’internet des objets, les voitures autonomes, etc., ont émergé. Par conséquent, l’adoption des technologies d’externalisations des données, telles que le cloud ou le fog computing, afin de gérer cette expansion technologique semble inévitable. Cependant, l’utilisation du cloud ou du fog computing en tant que plateforme d’externalisation pour le stockage ou le partage des données crée plusieurs défis scientifiques. En effet, externaliser ses données signifi
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Al, Beshri Aiiad Ahmad M. "Outsourcing data storage without outsourcing trust in cloud computing." Thesis, Queensland University of Technology, 2013. https://eprints.qut.edu.au/61738/1/Aiiad_Ahmad_M._Al_Beshri_Thesis.pdf.

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The main theme of this thesis is to allow the users of cloud services to outsource their data without the need to trust the cloud provider. The method is based on combining existing proof-of-storage schemes with distance-bounding protocols. Specifically, cloud customers will be able to verify the confidentiality, integrity, availability, fairness (or mutual non-repudiation), data freshness, geographic assurance and replication of their stored data directly, without having to rely on the word of the cloud provider.
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Lounis, Ahmed. "Security in cloud computing." Thesis, Compiègne, 2014. http://www.theses.fr/2014COMP1945/document.

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Le Cloud Computing, ou informatique en nuages, est un environnement de stockage et d’exécution flexible et dynamique qui offre à ses utilisateurs des ressources informatiques à la demande via internet. Le Cloud Computing se développe de manière exponentielle car il offre de nombreux avantages rendus possibles grâce aux évolutions majeures des Data Centers et de la virtualisation. Cependant, la sécurité est un frein majeur à l’adoption du Cloud car les données et les traitements seront externalisés hors de site de confiance de client. Cette thèse contribue à résoudre les défis et les issues de
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15

Buop, George Onyango. "Data storage security for cloud computing using elliptic curve cryptography." Master's thesis, University of Cape Town, 2020. http://hdl.handle.net/11427/32489.

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Institutions and enterprises are moving towards more service availability, managed risk and at the same time, aim at reducing cost. Cloud Computing is a growing technology, thriving in the fields of information communication and data storage. With the proliferation of online activity, more and more information is saved as data every day. This means that more data is being stored in the cloud than ever before. Data that is stored online often holds private information – such as addresses, payment details and medical documentation. These become the target of cyber criminals. There is therefore g
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Mxoli, Ncedisa Avuya Mercia. "Guidelines for secure cloud-based personal health records." Thesis, Nelson Mandela Metropolitan University, 2017. http://hdl.handle.net/10948/14134.

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Traditionally, health records have been stored in paper folders at the physician’s consulting rooms – or at the patient’s home. Some people stored the health records of their family members, so as to keep a running history of all the medical procedures they went through, and what medications they were given by different physicians at different stages of their lives. Technology has introduced better and safer ways of storing these records, namely, through the use of Personal Health Records (PHRs). With time, different types of PHRs have emerged, i.e. local, remote server-based, and hybrid PHRs.
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Ema, Ismat. "Sensitive Data Migration to the Cloud." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-64736.

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Sule, Mary-Jane. "Trusted cloud computing modelling with distributed end-user attestable multilayer security." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/12893.

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As cloud computing continues to gain popularity and its economies of scale continue to improve, stakeholders want to minimise the security risk, protect their data and other resources while maximising the gains of using any cloud resources and its application. It is predicted that by the end of 2017, bulk of spending on any IT infrastructure would be on cloud infrastructure and services as many critical applications – power, medical, finance among others continue to be migrated onto cloud platforms. For these sectors, the security challenges of cloud adoption continue to be of a great concern
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19

Thomas, Michael Kyle. "Implementation of the Security-Dependability Adaptive Voting Scheme." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/32542.

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As the world moves further into the 21st century, the electricity demand worldwide continues to rapidly grow. The power systems that supply this growing demand continue to be pushed closer to their limits. When those limits are exceeded, system blackouts occur that have massive societal and economical impact. Power system protection relays make up a piece of these limits and can be important factors in preventing or causing a system blackout. The purpose of this thesis is to prese
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Noman, Ali. "Addressing the Data Location Assurance Problem of Cloud Storage Environments." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37375.

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In a cloud storage environment, providing geo-location assurance of data to a cloud user is very challenging as the cloud storage provider physically controls the data and it would be challenging for the user to detect if the data is stored in different datacenters/storage servers other than the one where it is supposed to be. We name this problem as the “Data Location Assurance Problem” of a Cloud Storage Environment. Aside from the privacy and security concerns, the lack of geo-location assurance of cloud data involved in the cloud storage has been identified as one of the main reasons why
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Van, der Schyff Karl Izak. "Cloud information security : a higher education perspective." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1011607.

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In recent years higher education institutions have come under increasing financial pressure. This has not only prompted universities to investigate more cost effective means of delivering course content and maintaining research output, but also to investigate the administrative functions that accompany them. As such, many South African universities have either adopted or are in the process of adopting some form of cloud computing given the recent drop in bandwidth costs. However, this adoption process has raised concerns about the security of cloud-based information and this has, in some cases
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22

Xiong, Huijun. "Secure Data Service Outsourcing with Untrusted Cloud." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/23191.

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Outsourcing data services to the cloud is a nature fit for cloud usage. However, increasing security and privacy concerns from both enterprises and individuals on their outsourced data inhibit this trend. In this dissertation, we introduce service-centric solutions to address two types of security threats existing in the current cloud environments: semi-honest cloud providers and malicious cloud customers. Our solution aims not only to provide confidentiality and access controllability of outsourced data with strong cryptographic guarantee, but, more importantly, to fulfill specific security r
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Thilakanathan, Danan. "Secure Data Sharing and Collaboration in the Cloud." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/15164.

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Cloud technology can be leveraged to enable data-sharing capabilities, which can benefit the user through greater productivity and efficiency. However, the Cloud is susceptible to many privacy and security vulnerabilities, which hinders the progress and widescale adoption of data sharing for the purposes of collaboration. Thus, there is a strong demand for data owners to not only ensure that their data is kept private and secure in the Cloud, but to also have a degree of control over their own data contents once they are shared with data consumers. Specifically, the main issues for data shari
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Bilbray, Kyle. "DSFS: a data storage facilitating service for maximizing security, availability, performance, and customizability." Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/52984.

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The objective of this thesis is to study methods for the flexible and secure storage of sensitive data in an unaltered cloud. While current cloud storage providers make guarantees on the availability and security of data once it enters their domain, clients are not given any options for customization. All availability and security measures, along with any resulting performance hits, are applied to all requests, regardless of the data's sensitivity or client's wishes. In addition, once a client's data enters the cloud, it becomes vulnerable to different types of attacks. Other cloud users may a
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Inam, ul Haq Muhammad. "The major security challenges to cloud computing." Thesis, Högskolan i Borås, Institutionen Handels- och IT-högskolan, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-17235.

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Cloud computing is the computing model in which the computing resources such as software, hardware and data are delivered as a service through a web browser or light-weight desktop machine over the internet (Wink, 2012). This computing model abolishes the necessity of sustaining the computer resources locally hence cuts-off the cost of valuable resources (Moreno, Montero &amp; Llorente, 2012). A distinctive cloud is affected by different security issues such as Temporary Denial of Service (TDOS) attacks, user identity theft, session hijacking issues and flashing attacks (Danish, 2011). The pur
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Weber, Torsten, Johannes Quaas, and Petri Räisänen. "Evaluation of the statistical cloud scheme in the ECHAM5 model using satellite data." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-189558.

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An evaluation of a statistical cloud scheme taking into account subgrid-scale variability for water vapour and cloud condensate in the ECHAM5 general circulation model of the atmosphere is presented. Three-dimensional modelled water vapour, cloud liquid water and cloud ice were distributed stochastically into subcolumns of each grid box and vertically integrated to total water path (TWP). Thus the lower atmosphere is emphasized in the evaluation of TWP due to its exponential profile. The edited model dataset was compared with the globally analyzed distribution of TWP measured by the Moderate R
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Weber, Torsten, Johannes Quaas, and Petri Räisänen. "Evaluation of the statistical cloud scheme in the ECHAM5 model using satellite data." Royal Meteorological Society, 2011. https://ul.qucosa.de/id/qucosa%3A12921.

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An evaluation of a statistical cloud scheme taking into account subgrid-scale variability for water vapour and cloud condensate in the ECHAM5 general circulation model of the atmosphere is presented. Three-dimensional modelled water vapour, cloud liquid water and cloud ice were distributed stochastically into subcolumns of each grid box and vertically integrated to total water path (TWP). Thus the lower atmosphere is emphasized in the evaluation of TWP due to its exponential profile. The edited model dataset was compared with the globally analyzed distribution of TWP measured by the Moderate R
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Akintoye, Samson Busuyi. "Quality of service in cloud computing: Data model; resource allocation; and data availability and security." University of the Western Cape, 2019. http://hdl.handle.net/11394/7066.

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Philosophiae Doctor - PhD<br>Recently, massive migration of enterprise applications to the cloud has been recorded in the Information Technology (IT) world. The number of cloud providers offering their services and the number of cloud customers interested in using such services is rapidly increasing. However, one of the challenges of cloud computing is Quality-of-Service management which denotes the level of performance, reliability, and availability offered by cloud service providers. Quality-of-Service is fundamental to cloud service providers who find the right tradeoff between Qualit
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Gustafsson, Julia, and Mariam Said. "Security Aspects of Cloud Computing – Perspectives within Organizations." Thesis, Högskolan i Borås, Akademin för bibliotek, information, pedagogik och IT, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-10458.

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Cloud computing has become a significant and well-known term within a short period of time. Some parts of it might even be considered as unclear, including its vague definition. Cloud computing has rapidly and successfully come to perform an essential role within information technology and therefore in how organizations are managing their IT departments today. Its many advantages allure organizations to deploy a cloud solution. Despite the flourishing growth of cloud computing it still has its draw backs. One of its problems has come to be acknowledged as security issues, which has resulted in
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Xu, Cheng. "Authenticated query processing in the cloud." HKBU Institutional Repository, 2019. https://repository.hkbu.edu.hk/etd_oa/620.

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With recent advances in data-as-a-service (DaaS) and cloud computing, outsourcing data to the cloud has become a common practice. In a typical scenario, the data owner (DO) outsources the data and delegates the query processing service to a service provider (SP). However, as the SP is often an untrusted third party, the integrity of the query results cannot be guaranteed and is thus imperative to be authenticated. To tackle this issue, a typical approach is letting the SP provide a cryptographic proof, which can be used to verify the soundness and completeness of the query results by the clien
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Bernabeu, Emanuel. "Methodology for a Security-Dependability Adaptive Protection Scheme based on Data Mining." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/30131.

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The power industry is currently in the process of re-inventing itself. The unbundling of the traditional monopolistic structure that gave birth to a deregulated electricity market, the mass tendency towards a greener use of energy, the new emphasis on distributed generation and alternative renewable resources, and new emerging technologies have revolutionized the century old industry. Recent blackouts offer testimonies of the crucial role played by protection relays in a reliable power system. It is argued that embracing the paradigm shift of adaptive protection is a fundamental step towards a
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Zhang, Cong, and 張聰. "Design of Anonymity scheme for communication systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31228100.

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Backe, Anton, and Hugo Lindén. "Cloud Computing Security: A Systematic Literature Review." Thesis, Uppsala universitet, Institutionen för informatik och media, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-256426.

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This literature review seeks to identify the major security issues and their solutions in cloud computing security as well as identifying areas for future research. Utilising a modified version of the approach suggested by Okoli and Schabram (2010) 52 articles were considered for the review, of which 26 were included in the final product. Although many security issues and solutions were identified it has become apparent that much of the research being done only relates to the theoretical side. Thus this review shows that while plenty of issues have been identified future research should focus
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Wang, Ke, and 黃岢. "Designing authenication scheme for wireless sensor networks." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42841732.

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Cao, Ning. "Secure and Reliable Data Outsourcing in Cloud Computing." Digital WPI, 2012. https://digitalcommons.wpi.edu/etd-dissertations/333.

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"The many advantages of cloud computing are increasingly attracting individuals and organizations to outsource their data from local to remote cloud servers. In addition to cloud infrastructure and platform providers, such as Amazon, Google, and Microsoft, more and more cloud application providers are emerging which are dedicated to offering more accessible and user friendly data storage services to cloud customers. It is a clear trend that cloud data outsourcing is becoming a pervasive service. Along with the widespread enthusiasm on cloud computing, however, concerns on data security with cl
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Zhu, Chunsheng. "Improving sensor-cloud : energy efficiency, security, sensory data transmission, and quality of service." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/58352.

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Recently, induced by incorporating 1) the ubiquitous data gathering capabilities of wireless sensor networks (WSNs) as well as 2) the powerful data storage and data processing abilities of cloud computing (CC), Sensor-Cloud is attracting growing attention from both academia and industry. However, Sensor-Cloud is still in its infancy and a lot of research efforts are expected to emerge in this area. Improving Sensor-Cloud, this thesis first presents the important research issues that are yet to be widely investigated by other researchers regarding the energy efficiency, security, sensory data t
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Figueira, André. "Secure framework for cloud data sharing based on blockchain." Master's thesis, Universidade de Évora, 2018. http://hdl.handle.net/10174/24258.

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Blockchain is a relatively new and disruptive technology that is considered a distributed database working as a ledger, with the ability to facilitate the recording of transactions and tracking of assets. It is a growing list of records called blocks linked together by the hash of the previous block, where each block contains the most recent transactions in the network. Smart contracts are agreements between entities that are written in code, and, when associated with Blockchain they will operate without interference, censorship or malicious intentions. Data Sharing on Clouds is common but req
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Prakash, Aravind. "Confidential Data Dispersion using Thresholding." Scholarly Repository, 2009. http://scholarlyrepository.miami.edu/oa_theses/232.

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With growing trend in "cloud computing" and increase in the data moving into the Internet, the need to store large amounts of data by service providers such as Google, Yahoo and Microsoft has increased over time. Now, more than ever, there is a need to efficiently and securely store large amounts of data. This thesis presents an implementation of a Ramp Scheme that confidentially splits a data file into a configurable number of parts or shares of equal size such that a subset of those shares can recover the data entirely. Furthermore, the implementation supports a threshold for data compromise
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Wonjiga, Amir Teshome. "User-centric security monitoring in cloud environments." Thesis, Rennes 1, 2019. http://www.theses.fr/2019REN1S080.

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Les fournisseurs de services reconnaissent le problème de confiance et fournissent une garantie par le biais d'un contrat appelé Service Level Agreement (SLA). Presque tous les SLAs existants ne traitent que des fonctionnalités du nuage informatique et ne garantissent donc pas l'aspect sécurité des services hébergés pour les locataires. Comme le nuage informatique continue d'être de plus en plus intégré, il est nécessaire d'avoir des services de supervision de la sécurité propres a l'utilisateur, qui sont fondés sur les exigences des locataires. Cet aspect de supervision de la sécurité du syst
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SENIGAGLIESI, LINDA. "Information-theoretic security techniques for data communications and storage." Doctoral thesis, Università Politecnica delle Marche, 2019. http://hdl.handle.net/11566/263165.

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Negli ultimi anni il bisogno di sicurezza e privacy è cresciuto in maniera esponenziale in molti aspetti delle comunicazioni, parallelamente allo sviluppo tecnologico. La maggior parte dei sistemi di sicurezza attualmente implementati sono basati sulla nozione di sicurezza computazionale, e devono essere continuamente tenuti aggiornati per affrontare il miglioramento degli attacchi e l’avanzamento tecnologico. Allo scopo di soddisfare requisiti sempre più stringenti e rigorosi, di recente è cresciuto l’interesse verso soluzioni appartenenti al paradigma della teoria dell’informazione a support
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Duarte, Coscia Bruno Marcel. "Evaluation of Network-Layer Security Technologies for Cloud Platforms." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-290293.

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With the emergence of cloud-native applications, the need to secure networks and services creates new requirements concerning automation, manageability, and scalability across data centers. Several solutions have been developed to overcome the limitations of the conventional and well established IPsec suite as a secure tunneling solution. One strategy to meet these new requirements has been the design of software-based overlay networks. In this thesis, we assess the deployment of a traditional IPsec VPN solution against a new secure overlay mesh network called Nebula. We conduct a case study b
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Forde, Edward Steven. "Security Strategies for Hosting Sensitive Information in the Commercial Cloud." ScholarWorks, 2017. https://scholarworks.waldenu.edu/dissertations/3604.

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IT experts often struggle to find strategies to secure data on the cloud. Although current security standards might provide cloud compliance, they fail to offer guarantees of security assurance. The purpose of this qualitative case study was to explore the strategies used by IT security managers to host sensitive information in the commercial cloud. The study's population consisted of information security managers from a government agency in the eastern region of the United States. The routine active theory, developed by Cohen and Felson, was used as the conceptual framework for the study. The
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43

Quint, Ryan David. "Practical Implementation of a Security-Dependability Adaptive Voting Scheme Using Decision Trees." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/35667.

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Todayâ s electric power system is operated under increasingly stressed conditions. As electrical demand increases, the existing grid is operated closer to its stable operating limits while maintaining high reliability of electric power delivery to its customers. Protective schemes are designed to account for pressures towards unstable operation, but there is always a tradeoff between security and dependability of this protection. Adaptive relaying schemes that can change or modify their operation based on prevailing system conditions are an example of a protective scheme increasing reliabi
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44

Kumar, Virendra. "Provable security support for kerberos (and beyond)." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44722.

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Kerberos is a widely-deployed network authentication protocol that is being considered for standardization. Like other standard protocols, Kerberos is no exception to security flaws and weaknesses, as has been demonstrated in several prior works. Provable security guarantees go a long way in restoring users' faith, thus making a protocol an even stronger candidate for standards. In this thesis, our goal was thus to provide provable security support for Kerberos and other practical protocols. Our contributions are three-fold: We first look at the symmetric encryption schemes employed in the cu
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45

Li, F. "Context-aware attribute-based techniques for data security and access control in mobile cloud environment." Thesis, City University London, 2015. http://openaccess.city.ac.uk/11891/.

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The explosive growth of mobile applications and Cloud computing has enabled smart mobile devices to host various Cloud-based services such as Google apps, Instagram, and Facebook. Recent developments in smart devices‟ hardware and software provide seamless interaction between the users and devices. As a result, in contrast to the traditional user, the mobile user in mobile Cloud environment generates a large volume of data which can be easily collected by mobile Cloud service providers. However, the users do not know the exact physical location of their personal data. Hence, the users cannot c
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46

Vasilopoulos, Dimitrios. "Reconciling cloud storage functionalities with security : proofs of storage with data reliability and secure deduplication." Electronic Thesis or Diss., Sorbonne université, 2019. http://www.theses.fr/2019SORUS399.

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Dans cette thèse, nous étudions en profondeur le problème de la vérifiabilité des systèmes de stockage en nuage. Suite à notre étude des preuves de stockage et nous avons identifié des limitations par rapport à deux caractéristiques essentielles aux systèmes de stockage en nuage: la fiabilité du stockage des données avec une maintenance automatique et la déduplication des données. Pour faire face à la première limitation, nous introduisons la notion de preuve de fiabilité des données, un schéma de vérification complet visant à résoudre le conflit entre la vérification fiable du stockage des do
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Tang, Yuzhe. "Secure and high-performance big-data systems in the cloud." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53995.

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Cloud computing and big data technology continue to revolutionize how computing and data analysis are delivered today and in the future. To store and process the fast-changing big data, various scalable systems (e.g. key-value stores and MapReduce) have recently emerged in industry. However, there is a huge gap between what these open-source software systems can offer and what the real-world applications demand. First, scalable key-value stores are designed for simple data access methods, which limit their use in advanced database applications. Second, existing systems in the cloud need automa
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Skolmen, Dayne Edward. "Protection of personal information in the South African cloud computing environment: a framework for cloud computing adoption." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/12747.

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Cloud Computing has advanced to the point where it may be considered an attractive proposition for an increasing number of South African organisations, yet the adoption of Cloud Computing in South Africa remains relatively low. Many organisations have been hesitant to adopt Cloud solutions owing to a variety of inhibiting factors and concerns that have created mistrust in Cloud Computing. One of the top concerns identified is security within the Cloud Computing environment. The approaching commencement of new data protection legislation in South Africa, known as the Protection of Personal Info
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Tan, Yue. "Stochastic Modeling, Optimization and Data-Driven Adaptive Control with Applications in Cloud Computing and Cyber Security." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1431098853.

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Adeka, Muhammad I. "Cryptography and Computer Communications Security. Extending the Human Security Perimeter through a Web of Trust." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/11380.

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This work modifies Shamir’s algorithm by sharing a random key that is used to lock up the secret data; as against sharing the data itself. This is significant in cloud computing, especially with homomorphic encryption. Using web design, the resultant scheme practically globalises secret sharing with authentications and inherent secondary applications. The work aims at improving cybersecurity via a joint exploitation of human factors and technology; a human-centred cybersecurity design as opposed to technology-centred. The completed functional scheme is tagged CDRSAS. The literature on secret s
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