Revoking certificates that are no longer valid and automatically renewing certificates aids in maintaining the integrity and trustworthiness of secure communications between services. Revocation of certificates ensures that compromised or obsolete certificates cannot be used to establish unauthorized connections, while renewal prevents communication disruptions due to expired certificates. Leaving certificates unchanged might lead to security risks once they expire or are compromised. Increasing certificate lifespan may reduce renewal overhead but can increase security risks if the private key is compromised. Decreasing the certificate’s bit length will result in weaker encryption and increased vulnerability to cryptographic attacks.