What does the revocation feature in Vault do?

The revocation feature in Vault is designed to manage the lifecycle of secrets by removing access to those that are no longer valid. This is crucial for maintaining security, as it ensures that once a secret is deemed obsolete or when a user no longer requires access, their permissions are immediately revoked. This helps prevent unauthorized access and potential security breaches.

When secrets or credentials are revoked, any users, applications, or systems that previously relied on those credentials will no longer be able to access the associated secrets, thus adding a layer of control and security. Revocation can be triggered explicitly by an administrator or automatically based on the configured policies and time-to-live settings.

Other options do not represent the revocation feature accurately. Storing credentials securely refers to Vault’s ability to manage secrets, while granting additional permissions is unrelated to revocation, which focuses on removing access rather than enhancing it. Generating new credentials is a different aspect of Vault's functionality that does not pertain to the revocation process.