Which key management practice is critical when using public key infrastructure (PKI)?

Which key management practice is critical when using public key infrastructure (PKI)?

• A. Key rotation
• B. Key sharing
• C. Key recovery
• D. Key escrow

Answer: (A)

Key rotation is a fundamental practice in public key infrastructure (PKI) as it ensures that cryptographic keys are regularly updated and replaced. By rotating keys, organizations mitigate the risk of a compromised key being used indefinitely, thus enhancing overall security. Regular key rotation helps to limit the potential damage caused by a key that may have been exposed or otherwise compromised. Additionally, it aligns with best practices for key management, ensuring that even if a key is discovered by an unauthorized entity, the window of opportunity for misuse is minimized. This practice also supports the integrity and confidentiality of encrypted communications, as the continued use of a single key over time can create vulnerabilities. By implementing a systematic key rotation policy, organizations can maintain strong security posture in their encryption strategies, which is especially crucial in environments where sensitive data is concerned.

Key rotation is a fundamental practice in public key infrastructure (PKI) as it ensures that cryptographic keys are regularly updated and replaced. By rotating keys, organizations mitigate the risk of a compromised key being used indefinitely, thus enhancing overall security. Regular key rotation helps to limit the potential damage caused by a key that may have been exposed or otherwise compromised. Additionally, it aligns with best practices for key management, ensuring that even if a key is discovered by an unauthorized entity, the window of opportunity for misuse is minimized.

This practice also supports the integrity and confidentiality of encrypted communications, as the continued use of a single key over time can create vulnerabilities. By implementing a systematic key rotation policy, organizations can maintain strong security posture in their encryption strategies, which is especially crucial in environments where sensitive data is concerned.