Description: Obtaining authorization in the context of access control refers to the process by which a subject (such as a user or a process) requests and receives permission to access a specific resource of the system, such as files, devices, or network sockets. This process is fundamental to system security, as access control mechanisms implement a policy-based access control model that defines which actions are allowed or denied. Authorization is based on the evaluation of security policies that determine the relationships between subjects and objects, ensuring that only authorized users or processes can perform certain operations. This approach helps prevent unauthorized access and protects the integrity and confidentiality of data. Obtaining authorization is a key component in security management, as it allows administrators to define and adjust access policies in a granular manner, adapting to the specific needs of the organization and security requirements.
History: The concept of access control has evolved significantly over the years, with various models being developed to enhance system security. Mandatory Access Control (MAC) and Discretionary Access Control (DAC) are two of the main models used in different systems. The implementation of access control mechanisms has become standard practice in securing IT environments and protecting sensitive information.
Uses: Access control mechanisms are primarily used in environments where security is a priority, such as web servers, databases, and sensitive information systems. They allow administrators to define security policies that control access to system resources, helping to mitigate security risks and comply with data protection regulations and standards.
Examples: A practical example of obtaining authorization is when a web server attempts to access a configuration file. If the web server process does not have the appropriate security label according to the access control policies, access will be denied, thus protecting the integrity of the system. Another example is the use of access control mechanisms in containerized environments, where security policies are applied to limit the actions that containers can perform.
