In this workshop, you will add encryption and decryption features to a simple web application that sends form data over Amazon SQS.
First, you'll enable encryption by calling KMS directly, then, you'll change your code to use the Encryption SDK to call KMS for you. You will also add data key caching to reduce calls to KMS call overhead and an encryption context. The encryption context is non-secret data that you can use for tracking and auditing, verifying the identity of an encrypted message, and as a condition for grants and policies.
Instructions on how to set up (and to shut down) the example application, as well as the actual exercises can be found here, or in the 'exercises' branch of this repository.
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