What can best be defined as the sum of protection mechanisms inside the computer, including hardware, firmware and software?
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A. B. C. D.C.
The Trusted Computing Base (TCB) is defined as the total combination of protection mechanisms within a computer system.
The TCB includes hardware, software, and firmware.
These are part of the TCB because the system is sure that these components will enforce the security policy and not violate it.
The security kernel is made up of hardware, software, and firmware components at fall within the TCB and implements and enforces the reference monitor concept.
The correct answer is C. Trusted Computing Base.
Trusted Computing Base (TCB) can be best defined as the sum of protection mechanisms inside the computer, including hardware, firmware, and software. The TCB is responsible for enforcing the security policy of a computer system. It comprises of all the components necessary to enable a computer to provide a secure computing environment.
The TCB includes the hardware, such as the CPU, memory, and input/output devices, firmware such as BIOS, and the operating system, which is the software that manages the hardware resources and provides a platform for applications to run. Additionally, it also includes the security mechanisms, such as access control, authentication, and encryption.
A Trusted Computing Base is designed to ensure that all access to resources and data is controlled and audited. It provides a secure and reliable computing environment that can be trusted to perform critical operations without fear of compromise.
Trusted systems are often used in military, government, and financial institutions where security is of utmost importance. These systems are subject to rigorous testing and certification to ensure that they meet strict security standards.
Security Kernel, on the other hand, is a subset of the TCB and is responsible for enforcing the rules and policies of the operating system. It is the part of the operating system that controls access to resources and enforces security policies. The security kernel is also responsible for controlling access to the TCB itself.
The security perimeter is the boundary that separates the secure environment from the unsecured environment. It includes physical barriers such as fences, walls, and guards, as well as logical barriers such as firewalls and access controls.
In conclusion, the TCB is the sum of protection mechanisms inside a computer system that enforces the security policy of the system. It includes hardware, firmware, and software components, as well as access control, authentication, and encryption mechanisms.