We have looked at protocols for distributing and establishing keys used for authentication and confidentiality
But who should you give these keys to? Who should you trust? What are the rules governing when to and not to give out security credentials
In this lecture, we will look at the broad area of secure and trusted systems
We will focus on access control models
These methods are often used to abstract the requirements for a computer system
But, they hold for general systems where security is a concern (e.g. networks, computers, companies…)
Overview Access Control Matrix model Discretionary Access Control (DAC) Mandatory Access Control (MAC) and an example model Role Based Access Control (RBAC) Access Control in Unix
Information Security by Van K Nguyen Hanoi University of Technology
.What is AC
Quote from Ross Anderson (text “Security Engineering”)
Its function is to control which principals (persons, processes, machines, …) have access to which resources in the system -- which files they can read, which programs they can execute, and how they share data with other principals, and so on....
Bài giảng "Bảo mật cơ sở dữ liệu - Chương 4: Role based access control models (Điều khiển truy cập dựa trên vai trò)" trình bày các nội dung: Role-Based Access control, các tiêu chuẩn RBAC do NIST đề xuất, core RBAC, operations, permissions assignment, the role hierarchy,... Mời các bạn cùng tham khảo.
Security in Information Systems: Chapter 3 - Mandatory access control Introduction to Mandatory Access Control (Security Classes, MAC properties, Multilevel relation, Pros and cons of MAC), Proposed Models for MAC, MAC in Oracle Oracle Label Security.
Computer Security: Chapter 7 - Using Trust for Role-Based Access Control (RBAC) includes Access Control in Open Systems, Proposed Access Control Architecture, TERM server (Basic, Evidence Model, Architecture, Prototype TERM server).
Discretionary access controls includes about Discretionary Access Controls (DAC, Access Matrix Model), DAC in Relational Database (DAC, Privileges, The System R Access Control, Content–Based Access Control, Demo).
Bài giảng "Bảo mật cơ sở dữ liệu - Chương 3: Bảo mật theo cơ chế MAC" cung cấp cho người học các kiến thức: Define Mandatory Access Control Models, secrecy-preserving models, integrity-preserving models, multi-Level security, multi-level databases access control models,... Mời các bạn cùng tham khảo.
Bài giảng "Bảo mật cơ sở dữ liệu: Security models" trình bày các nội dung: Access control, types of Access control, mandatory access control, rules based access control, authentication methods, operating system authentication,... Mời các bạn cùng tham khảo.
This manual describes configuration steps to be taken for implementation of Kerio Control
in a model network. This network includes most elements present in a real-life Kerio
Control network — Internet access from the local network, protection against attacks from
the Internet, access to selected services on the LAN from the Internet, user access control,
automatic configuration of clients on the LAN, user authentication in the Active Directory
domain, user browsing behavior control, etc.
.CompTIA SY0-201: Practice Exam QUESTION NO: 1 Who is responsible for establishing access permissions to network resources in the DAC access control model? A. The system administrator. B. The owner of the resource. C. The system administrator and the owner of the resource. D. The user requiring access to the resource.
Content: LAN Features & Purposes,
Layered Model of LAN,
Media Access Control: CSMA/CD | Ethernet,
LAN Devices. References:
Data- Computer Communication handbook- William Stallings,
TCP/IP Illustrated, Volume I - W.R. Stevens,
THREE ESSAYS ON FINANCIAL DISTRESS AND CORPORATE CONTROL Chapter One develops this idea and implements tests of the hypothesis that school
effectiveness is an important determinant of residential choices among local-monopoly
school districts. I model a Tiebout-style housing market in which house prices ration
access to desirable schools, which may be desirable either because they are particularly
effective or because they enroll a desirable set of students.
This work contains numerous arguments, sketches, views, and
theories and not all are central to the main thesis. I have tried to
make the model of intellectual and intangible property presented in
these pages accessible while maintaining a fair amount of rigor and
depth. I thus skirt the line of boring the expert and overwhelming
the novice. My hope is that I have done neither.
After completing this lesson, you should be able to
do the following:
Create roles to ease setup and maintenance of the security model
Use the GRANT and REVOKE statements to grant and revoke object privileges
Create and access database links
Q: What type of authentication system does the OS (Security Kernel) determined who is allowed access to a resource
Q: What access control model helps fight “authorization creep”
Q: Biometrics are an example of “What you ____”
Q: What is a better security model, network based or host based? Justify your answer.
This paper describes a system for managing: dialogue in a natural language interface. The proposed approach uses a dialogue manager as the overall control mechanism. The dialogue manager accesses domain independent resources for interpretation, generation and background system access. It also uses information from domain dependent knowledge sources, which are customized for various applications.