The Amazon DynamoDB Encryption Client is a software library that helps you to protect your table data before you send it to Amazon DynamoDB. Encrypting your sensitive data in transit and at rest helps ensure that your plaintext data isn't available to any third party, including AWS. This developer guide provides a conceptual overview of the DynamoDB Encryption Client, including an introduction to its architecture, details about how it protects DynamoDB table data and how it differs from DynamoDB server-side encryption, guidance on selecting critical components for your application, and examples in each programming language to help you get started.