What does "PKI policy" primarily govern?

The correct answer highlights that "PKI policy" primarily governs the management and usage of PKI components and processes. This aspect of PKI policy is crucial because it establishes guidelines and standards for how Public Key Infrastructure should be implemented, maintained, and utilized within an organization.

PKI policies define the roles and responsibilities of various stakeholders, procedures for certificate issuance and management, and security measures to protect the integrity and confidentiality of the cryptographic materials involved. It covers everything from how keys are created and stored to how certificates are revoked or renewed, ensuring a consistent and secure approach to cryptographic practices.

By having a robust PKI policy in place, organizations can effectively mitigate risks associated with unauthorized access, data breaches, and other cyber threats, ensuring that cryptographic systems support their security objectives effectively.

Other aspects, such as network hardware usage, software application design, and IT personnel training, may be guided by different policies or frameworks but are not the primary focus of PKI policy itself. Thus, understanding the governance framework provided by PKI policy is essential for anyone involved in managing digital security through cryptography.