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The Global ETD Search service is a free service for researchers
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Showing 31 to 33 of 33 (0.043 seconds)Spelling suggestions: "subject:"rolebased access"" "subject:"role.based access""
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應用剖面導向技術研製網路應用程式之可設定式細緻化存取控管林經緯, Lin,Ching Wei Unknown Date (has links)
存取控管(Access Control)是網路應用程式(Web Applications)安全防護中的核心課題。貫徹存取控管的程式碼往往必須嵌入到應用系統的各個模組中，具有橫跨(cross-cutting)的特性，卻也因此常常造成系統中反覆出現類似的程式碼以及不同需求的程式碼夾雜不清的現象。所以學界業界紛紛提出了許多可設定式(configurable)的存取控管機制來解決此一問題。但這些機制都著重在一般功能性(function-level)的存取控管，對於較細緻化(fine-grained)的資料存取(data-level)控管，並未提供設定式的控管方式，還是得透過程式化(programmatic)的方式處理，所以仍然有程式橫跨性的問題。
最近興起的剖面導向程式設計(Aspect-Oriented Programming)基於關注分離的原則(Separation of Concerns)，針對像安全橫跨性的需求，倡議在原有的物件或函式模組外，另以剖面作為這些橫跨性需求的模組單位，既可集中開發又可依規則將安全程式碼整合至系統的各個模組。因此本研究將以AOP技術來設計與製作一套可設定式的細緻化存取控管服務與工具。 / Security is attracting more and more concerns in the development of Web applications. However, it is not easy to derive a robust security implementation for Web applications. The principle difficulty in designing security such as access control into an application system is that it is a concern that permeates through all the different modules of a system. As a result, security concerns in an application are often implemented with scattered and tangled code, which is not only error-prone but also makes it difficult to verify its correctness and perform the needed maintenance.
Aspect-Oriented Programming (AOP) is a relative new design method that allows a programmer to isolate some of the code that crosscuts his program modules into a separate module, and thus realizes the concept of Separation of Concerns. AOP offers significant advantages to programming over traditional OO techniques in implementing crosscutting concerns such as access control. In this thesis, we define an XML schema for specifying fine-grained access control rules for Web applications in a configuration file and devise an aspect-oriented implementation scheme. Specifically, we develop an aspect synthesis tool that generates concrete access control aspects automatically from access control rules. These aspects, after woven into the base application, will enforce proper access control in a highly modular manner. As a result, we get a configurable implementation of access control that is not only adaptive but also effective.
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Role Based Access Control (RBAC) in the context of Smart Grids : Implementing and Evaluating a Role Based Access Control System for Configuration Loading in a Substation from a Desktop / Rollbaserad åtkomstkontroll (RBAC) för smarta nät : Implementering och utvärdering av ett rollbaserat åtkomstkontrollsystem för konfigurationsinläsning i en transformatorstation från en datorapplikation.Ducornaud, Gatien January 2023 (has links)
Access control is a crucial aspect of cybersecurity, and Role Based Access Control (RBAC) is a typical framework for controlling the access to specific resources. However, in the context of Smart Grids, the usual authentication solution of using a trusted identity provider might not be possible to provide authentication of a user, as systems cannot rely on external services. This, in addition to devices in a substation being usually strictly controlled, means that having an RBAC limited to a desktop application can be necessary. Moreover, the cost of adding additional layers of security needs to be considered too, as the cost of adding specific features can vary significantly. This thesis thus looks into the existing solutions for desktop applications in substations, explains their viability and implements an RBAC system using Group Nesting in Windows user management, in the context of a configuration loading application on a main computer in a substation. It is then used to evaluate the cost of this new solution, in terms of maintainability, usability and flexibility, compared to the gained security. This is done by using static analysis of both codebases, and evaluation of usability and security. It shows that security can be added for a reasonable cost using Group Nesting in Smart Grids if the focus is to delegate some tasks to the directory, improving on the security of the application and the system as a whole. / Åtkomstkontroll är en viktig aspekt av cybersäkerhet, och rollbaserad åtkomstkontroll (RBAC) är ett typiskt ramverk för att kontrollera åtkomsten till specifika resurser. I smarta nät kan det dock hända att den vanliga autentiseringslösningen med en betrodd identitetsleverantör inte är tillräcklig för att autentisera en användare, eftersom systemen inte kan förlita sig på externa tjänster. Detta, förutom att enheterna i en transformatorstation vanligtvis är strikt kontrollerade, innebär att det kan vara nödvändigt att ha en RBAC som är begränsad till en datorapplikation. Dessutom måste kostnaden för att lägga till ytterligare säkerhetslager också beaktas, eftersom kostnaden för att lägga till specifika funktioner kan variera avsevärt. Denna avhandling omfattar därför dels undersökning av de befintliga lösningarna för datorapplikation i transformatorstationer, dels redogörelse av genomförbarheten och dels implementeringen av ett RBAC-system. Implementationen använder funktionen Group Nesting i Windows-användarhantering och integrerades i en applikation för konfigurationsinläsning på en huvuddator i en transformatorstation. Därefter utvärderas kostnaden för denna nya lösning i fråga om underhållbarhet, användbarhet och flexibilitet i förhållande till den ökade säkerheten. Detta görs med hjälp av statisk analys av de båda mjukvarulösningarna och utvärdering av användbarhet och säkerhet. Det visar att säkerheten kan ökas till en rimlig kostnad med hjälp av Group Nesting i smarta nät, om fokus ligger på att delegera vissa uppgifter till en katalog, vilket förbättrar säkerheten i applikationen och systemet som helhet. / Le contrôle ’daccès est un aspect essentiel de la cybersécurité, et utiliser des rôles pour implémenter cela est souvent le modèle recommandé. Pour autant, dans le contexte des réseaux électriques intelligents, il ’nest pas toujours possible de posséder un parti tiers fiable qui puisse faire autorité car il ne faut pas dépendre de systèmes extérieurs. ’Cest particulièrement vrai dans une sous-station où les ordinateurs connectés ont un rôle strictement défini. Ainsi il peut être nécessaire ’davoir un système de contrôle ’daccès basé sur les rôles (RBAC, Role-Based Access Control) uniquement contenu sur un ordinateur. Il faut de plus pouvoir estimer le coût de cette sécurité supplémentaire. Ce rapport évalue les solutions existantes dans cette situation et leur viabilité, et implémente un RBAC grâce à ’limbrication de groupe ’dutilisateur Windows, pour une application desktop pour le chargement de configuration pour l´ordinateur central ’dune sous-station. Cette implémentation est ensuite utilisée pour estimer les coûts associés à ’lajout ’dun RBAC en termes de maintenabilité, ’dutilisabilité et de flexibilité par rapport aux gains de sécurité. Cela est fait à travers des outils ’danalyse statique sur le code avant et après implémentation et ’dautres techniques ’danalyse de la sécurité et de la maintenabilité. Cela permet de montrer que, avec ’limbrication de groupes, il est possible ’dobtenir un niveau de sécurité satisfaisant tout en limitant les coûts associés, grâce au fait de déléguer les fonctions de gestion ’dutilisateur à un système de directory (répertoire).
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Streamlining Certification Management with Automation and Certification Retrieval : System development using ABP Framework, Angular, and MongoDB / Effektivisering av certifikathantering med automatisering och certifikathämtning : Systemutveckling med ABP Framework, Angular och MongoDBHassan, Nour Al Dine January 2024 (has links)
This thesis examines the certification management challenge faced by Integrity360. The decentralized approach, characterized by manual processes and disparate data sources, leads to inefficient tracking of certification status and study progress. The main objective of this project was to construct a system that automates data retrieval, ensures a complete audit, and increases security and privacy. Leveraging the ASP.NET Boilerplate (ABP) framework, Angular, and MongoDB, an efficient and scalable system was designed, developed, and built based on DDD (domain-driven design) principles for a modular and maintainable architecture. The implemented system automates data retrieval from the Credly API, tracks exam information, manages exam vouchers, and implements a credible authentication system with role-based access control. With the time limitations behind the full-scale implementation of all the planned features, such as a dashboard with aggregated charts and automatic report generation, the platform significantly increases the efficiency and precision of employee certification management. Future work will include these advanced functionalities and integrations with external platforms to improve the system and increase its impact on operations in Integrity360.
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