Access Control Models - 1731 Words

ACCESS CONTROL MODELS An access control model is a framework that dictates how subjects access objects. There are three main types of access control model mandatory access control, discretionary access control and role-based access control. Discretionary (DAC) The creator of a file is the ‘owner’ and can grant ownership to others. Access control is at the discretion of the owner. Most common implementation is through access control lists. Discretionary access control is required for the Orange Book â€Å"C† Level. Mandatory (MAC) Much more structured. Is based on security labels and classifications. Access decisions are based on clearance level of the data and clearance level of the user, and, classification of the object. Rules are made†¦show more content†¦Network architecture – Logical controls can provide segregation and protection of an environment. I/P address ranges, subnets, routing between networks, etc. Network Access – Logical network access controls – routers, switches, NICs, bridges. Encryption and Protocols Control Zone – Technical and physical control. Surrounds and protects network devices that emit electrical signals. TEMPEST related. Access Control Types Each control method can also perform different functionality. The functionality types are Preventative Detective Corrective Deterrent Recovery Compensating For example Preventative-Administrative Policies and procedures, effective hiring practices, background checks, data classification, security awareness training. Preventative-Physical Biometrics, badges, swipe cards, guards, dogs, motion detectors, fences, mantraps, locks and alarms. Preventative-Technical Passwords, biometrics, smart cards, encryption, call-back systems, database views, antivirus software, ACLs, firewalls, IDS Auditing Accountability Auditing capabilities ensure that users are held accountable for their actions, verify that policies are enforced, deter improper actions and are an investigative tool. There are 3 main types of audit tool Audit reduction Variance detection Attack-signature detection Audit data must be protected from unauthorized viewing andShow MoreRelatedAccess Control Models And Report Essay2752 Words   |  12 PagesSecurity Research Report Lecturer: Krassie Petrova ACCESS CONTROL MODELS Report Synopsis This research is aimed at conducting a comparative study of the different access control models and report on them. The prescribed text mentions Role Based Access Control in chapter 5 but does not give details on this model and does not provide information on the other access control models. Hence this report seeks to explain the different access control models and compare them based on an analysis of academicRead MoreImportance Of IT Security Models And Access Control843 Words   |  4 Pages IT Security Models and Access Control Management – Corrective â€Å"Corrective controls exist to relieve or decrease the impacts of the danger being showed†(Northcutt,2014). At the point when a representative leaves or is ended, it can be a noteworthy security risk on the off chance that regardless they approach network and friends IT assets. This danger could bring about the unapproved access of framework assets and information. To moderate this risk suitable end controls, arrangements and methodologyRead MoreThe World Of Computer Systems1466 Words   |  6 Pagesof the organisation in other to control â€Å"who gets in†, â€Å"who does what† and â€Å"who sees what†. This duty has seemed to be one of the difficult problems faced by the admin and could turn out bad If not controlled properly (Kizza, 2009). However, due to differences in geographical locations and socio-cultural differences, the users find it challenging to achieve a balance between securing and availability of resources due to the approach of the n umerous access control implemented into distributed systemRead MoreDevelopment of Control and Confidentiality for Database Management Systems896 Words   |  4 Pagesthe area of access control and confidentiality for DBMSs focused on the development of two different classes of models, based on the unrestricted access control policy and on the mandatory access control policy. This early research was transmitting in the framework of relational database systems. The relational data model, being a declarative and high-level model for specifying the logical structure of data, made the development of simple declarative languages for specifying access control policiesRead MoreThe New Ways Of Interaction With The Iot1255 Words   |  6 Pagesopen issues that may hinder the adoption and development of the IoT. Authorization and Access Control in IoT Authorization determines whether an entity (i.e., person or object) is permitted to access a certain resource. Access control means controlling access to resources by granting or denying access according to a wide range of criteria. Authorization is typically implemented through the use of access controls. 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The functionalities of access control management include defining who should have access to what resources (Assignment of entitlements to users, and also to audit and report to verify entitlement assignments), why should the users have access to the resource they hold (Assignment of entitlementsRead MoreBasic Concepts Of Access Control System1133 Words   |  5 Pagesnumber of access control policies that need to be defined might be in billions. If only one permission is incorrectly granted, a user will be given unsupervised access to information and resources which could jeopardize the security of the entire given social network. Presently, security of information is an indispensable responsibility for all media keeping and sharing information with others. In practice, all applications employ access control methods to protect their information. Access control identifiesRead MoreThe Secrecy Controls Of The Bellla Padula Model1052 Words   |  5 Pages1)Write a set of rules combining the secrecy controls of the BellLa Padula model with the integrity controls of the Biba model. Bell-LaPadula Model is a formal state- transition model of computer security policy that describes a set of access control rules for some objects. It s an access control model for protecting confidentiality. It has been proven that as the information flows from one object to another the system remains in a secure state. We can say that information prohibited in one stateRead MoreA Report On The Cloud Industry1378 Words   |  6 Pagesinfrastructure. Introduction What is an Insider Threat? â€Å"A malicious insider threat to an organization is a current or former employee, contractor, or other business partner who has or had authorized access to an organization s network, system, or data and intentionally exceeded or misused that access in a manner that negatively affected the confidentiality, integrity, or availability of the organization s information or information systems.† Software Engineering Institute, Carnegie Mellon University