Which AWS service provides a hardware security model for encryption?

AWS CloudHSM provides a hardware security model for encryption through dedicated hardware security modules (HSMs). This service is designed to help customers manage cryptographic keys and perform cryptographic operations securely. By utilizing hardware-based security, AWS CloudHSM ensures that sensitive operations, such as key generation and encryption processing, are protected from unauthorized access or tampering.

The service allows organizations to maintain control over their encryption keys, ensuring compliance with stringent regulatory requirements that often dictate the use of hardware-based security measures. It supports various cryptographic standards and protocols, allowing for integration with existing applications and workflows.

In contrast, while AWS Nitro Enclaves offers a secure environment to run applications and workloads that require strong isolation, it does not specifically address the management of cryptographic keys through a dedicated hardware security model like CloudHSM does. AWS KMS is more focused on key management and provides a software-based solution for encrypting data, and AWS Secrets Manager is mainly used for managing secrets like API keys and database credentials rather than encryption key management.