4.2.3. KMS Integration with AWS Services

First Principle: AWS KMS integrates seamlessly with hundreds of AWS services, simplifying data encryption at rest and enhancing security by centralizing key management and auditing cryptographic operations.

AWS Key Management Service (KMS) is a critical component of AWS security infrastructure due to its deep integration with a wide range of other AWS services. This integration makes it easy for users to encrypt their data at rest without managing complex encryption processes.

Key KMS Integration with AWS Services:

• Amazon S3: Encrypts objects at rest using SSE-KMS with KMS Customer Managed Keys (CMKs) or AWS-managed keys.
• Amazon EBS: Encrypts EBS volumes and their snapshots using KMS CMKs or AWS-managed keys.
• Amazon RDS: Encrypts RDS database instances and their snapshots/backups using KMS CMKs or AWS-managed keys.
• Amazon DynamoDB: Encrypts DynamoDB tables at rest, with KMS as the default or using customer-provided CMKs.
• AWS Lambda: Encrypts environment variables at rest using KMS. Can use KMS to encrypt/decrypt data within function code.
• AWS CloudTrail: Encrypts CloudTrail logs stored in S3 using KMS.
• AWS Systems Manager Parameter Store: Stores secrets and configuration data encrypted by KMS.

Scenario: You need to ensure all sensitive data stored in Amazon S3 buckets, EBS volumes, and RDS databases is encrypted at rest using customer-managed keys for consistent key management and auditing.

Reflection Question: How does AWS KMS's seamless integration with hundreds of AWS services (e.g., S3, EBS, RDS) simplify data encryption at rest and enhance security by centralizing key management and auditing cryptographic operations?