Work with DynamoDB table encryption using Amazon Command Line Interface v2

Create a table with default encryption.

# Create a table with default encryption (AWS owned key)
aws dynamodb create-table \
    --table-name CustomerData \
    --attribute-definitions \
        AttributeName=CustomerID,AttributeType=S \
    --key-schema \
        AttributeName=CustomerID,KeyType=HASH \
    --billing-mode PAY_PER_REQUEST \
    --sse-specification Enabled=true,SSEType=KMS

Create a table with a customer managed CMK.

# Step 1: Create a customer managed key in KMS
aws kms create-key \
    --description "Key for DynamoDB table encryption" \
    --key-usage ENCRYPT_DECRYPT \
    --customer-master-key-spec SYMMETRIC_DEFAULT

# Store the key ID for later use
KEY_ID=$(aws kms list-keys --query "Keys[?contains(KeyArn, 'Key for DynamoDB')].KeyId" --output text)

# Step 2: Create a table with the customer managed key
aws dynamodb create-table \
    --table-name SensitiveData \
    --attribute-definitions \
        AttributeName=RecordID,AttributeType=S \
    --key-schema \
        AttributeName=RecordID,KeyType=HASH \
    --billing-mode PAY_PER_REQUEST \
    --sse-specification Enabled=true,SSEType=KMS,KMSMasterKeyId=$KEY_ID

Update table encryption.

# Update a table to use a different KMS key
aws dynamodb update-table \
    --table-name CustomerData \
    --sse-specification Enabled=true,SSEType=KMS,KMSMasterKeyId=$KEY_ID

Describe table encryption.

# Describe the table to see encryption settings
aws dynamodb describe-table \
    --table-name CustomerData \
    --query "Table.SSEDescription"