AWS Certified Solutions Architect Associate Test 8

The encryption context is additional authenticated information AWS KMS uses to check for dataintegrity. When specified for the encryption operation, it must also be specified in the decryptionoperation or decryption will fail. AWS CodeCommit uses the AWS CodeCommit repository ID for theencryption context. You can find the repository ID by using the get-repository command or byviewing repository details in the AWS CodeCommit console. Search for the AWS CodeCommitrepository ID in AWS CloudTrail logs to understand which encryption operations were taken on whichkey in AWS KMS to encrypt or decrypt data in the AWS CodeCommit repository.
http://docs.aws.amazon.com/codecommit/latest/userguide/encryption.html