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Because DynamoDB has to use this key for server-side encryption, the first step is to make a set of CreateGrant API calls. DynamoDB uses the AWS-managed CMK as the top-level key.When the CreateTable API request is received, DynamoDB authenticates the request.The owner of the table uses the CreateTable API call with server-side encryption set to AWS KMS.These are the steps in the server-side encryption process, as shown in the preceding diagram: Now that we know the ratings table is created with AWS KMS server-side encryption, let’s look at the workflow for server-side encryption.
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If you want to verify a table’s encryption method, you can use the describe-table API call or the DynamoDB console.
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Note: If you don’t see SSEDescription in the response for a table with server-side encryption, try updating to the latest AWS CLI. The attribute –sse-specification Enabled with AWS KMS as SSEType defines the method of encryption. Let’s begin by creating a DynamoDB table with the AWS-managed CMK. We also discuss tracking API calls to AWS KMS by using AWS CloudTrail and Amazon Athena to understand the distribution of calls made (GenerateGrant vs. In this blog post, we cover the mechanics of server-side encryption by using an AWS-managed CMK. In addition, you can use client-side encryption to protect data before sending it to DynamoDB. However, you can select an option to encrypt some or all of your tables by using an AWS-managed CMK. DynamoDB encrypts all existing tables that were previously unencrypted using the AWS-owned CMK. Server-side encryption at rest using the AWS-owned CMK is enabled by default on all DynamoDB tables. On the other hand, AWS-managed CMKs are keys stored in your account that are created, managed, and used on your behalf by an AWS service that integrates with AWS Key Management Service (AWS KMS). AWS-owned CMKs are not in your AWS account. The AWS-owned CMK is the default encryption type, where the key is owned by AWS as a collection of CMKs and manages use in multiple AWS accounts. You can also work with Transport Layer Security (TLS) endpoints for encryption of data in transit.įor encryption of data at rest, you can choose one of two customer master key (CMK) options to encrypt your tables. Amazon VPC endpoints also provide fine-grained access control through AWS Identity and Access Management (IAM) to regulate access to items and attributes stored in DynamoDB tables.
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Amazon VPC endpoints provide secure access to DynamoDB tables for applications running in a VPC. You can use various capabilities to run DynamoDB securely. As you adopt DynamoDB for web scale workloads, it’s important that you understand security controls available within DynamoDB. Amazon DynamoDB is a fast and flexible NoSQL database service that can provide consistent single-digit millisecond latency at scale. Using NoSQL data stores has become increasing popular because of NoSQL’s flexible data model for building modern applications. As applications evolve to be more scalable for the web, customers are adopting flexible data structures and database engines for their use cases.