Which service allows secure key management?

Alibaba Cloud Key Management Service (KMS) is a secure service designed for managing cryptographic keys and sensitive credentials. KMS enables users to generate, import, rotate, and control encryption keys used to secure data at rest across various cloud services and applications.

A. RAM (Resource Access Management) is an identity management service used to control access privileges to Alibaba Cloud resources, not to manage cryptographic keys.
C. OSS (Object Storage Service) stores unstructured data objects and integrates with KMS for server-side encryption, but does not provide key management functionality itself.
D. SLB (Server Load Balancer) distributes network traffic across backend ECS instances to ensure high availability, lacking features for secure key management.

- Alibaba Cloud Documentation, "What is Key Management Service?", Section: Product Overview / Core Features, Doc ID: KMS-Overview-001. https://www.alibabacloud.com/help/en/key-management-service/latest/what-is-kms