Which encryption technique connects the instance to the encryption instance that handles all crypto operations?

The correct answer is Proxy. This encryption technique acts as an intermediary that connects the instance that requires encryption to the encryption instance responsible for handling all cryptographic operations. By utilizing a proxy approach, you can centralize and manage encryption processes, providing an additional layer of security and abstraction.

This structure allows for efficient handling of encryption keys and processes while maintaining the necessary performance for the application. The proxy can facilitate communication between different system components and manage cryptographic tasks without placing the burden directly on the instance that requires encryption.

This method is particularly advantageous in cloud environments, where scalability and flexibility are crucial, as it enables seamless integration of encryption services without the need for each instance to perform its own encryption tasks. Centralized management through a proxy model simplifies compliance with security standards and policies, as well.