Which of the following BEST represents the principle of open design?

The correct answer is D. The security of a mechanism should not depend on the secrecy of its design or implementation.. This is the principle of open design, which states that the security of a system or mechanism should rely on the strength of its key or algorithm, rather than on the obscurity of its design or implementation. This principle is based on the assumption that the adversary has full k

Submitted by kavita_s· Mar 5, 2026Security Architecture and Engineering

Question

Which of the following BEST represents the principle of open design?

Options

ADisassembly, analysis, or reverse engineering will reveal the security functionality of the computer
BAlgorithms must be protected to ensure the security and interoperability of the designed system.
CA knowledgeable user should have limited privileges on the system to prevent their ability to
DThe security of a mechanism should not depend on the secrecy of its design or implementation.

How the community answered

(38 responses)

A
3% (1)
C
5% (2)
D
92% (35)

Explanation

This is the principle of open design, which states that the security of a system or mechanism should rely on the strength of its key or algorithm, rather than on the obscurity of its design or implementation. This principle is based on the assumption that the adversary has full knowledge of the system or mechanism, and that the security should still hold even if that is the case.

Topics

#Security principles#Open design#Security through obscurity

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