As the name suggests, Azure Key Vault is used to store and manage keys securely. Key Vault can be used to store the cryptographic secrets and keys such as authentication keys, storage account keys, data encryption keys, passwords and certificates.
Azure Key Vault enables developers to create the keys for development and testing in minutes, and they can further migrate this setup seamlessly onto the production environment.
The centralized key store/vault can be securely managed by the Key Vault owner who manages permissions to this key store and would be responsible for keeping the secrets secure.
Key Vault becomes quite useful in managing secrets in tools like Azure Databricks and Azure Data Factory without saving a bunch of keys in configuration files. And it’s a lot safer than that option, too.