DynamoDB Global tables是否支持encryption at rest？相关文档咨询

Hey there,

Great question! Let me break this down clearly for you:

• DynamoDB Global Tables do support native encryption at rest — the confusion might stem from how encryption is configured for them. Unlike some AWS services, Global Tables don’t have a standalone encryption setting at the global level. Instead, encryption is managed per individual member table in each region that’s part of your Global Table replication group.

• Here’s the workflow: When you set up a Global Table, each regional table in the group inherits its encryption configuration from the source table (or you can configure each explicitly). If you enable DynamoDB’s default encryption (using AWS managed KMS keys) or specify a customer-managed KMS key for every member table, all data stored in those tables — including data replicated across regions via Global Tables — will be encrypted at rest.

• While the encryption-at-rest docs you checked might not call out Global Tables specifically, you can find relevant details in the official DynamoDB Global Tables documentation. Look for sections covering data security and encryption, which explicitly state that the encryption settings of each regional table apply to replicated data.

• A quick best practice note: If using customer-managed KMS keys, ensure each regional key has the necessary permissions to let DynamoDB encrypt/decrypt data during replication. You can also use AWS multi-region KMS keys to simplify key management across regions for your Global Tables.

内容的提问来源于stack exchange，提问作者chrisrhyno2003