title: serverless, encrypting a topic on aws
body: <p>I'm creating a topic using serverless on AWS.  This all works fine, however I want to encrypt the topic using SSE.  How do I get this done.  What should be the format of the yaml file.  So far I have </p>
  
  <pre><code>MyTopic:
    Type: AWS::SNS::Topic
    Properties:
      TopicName: MyTopic
  MyTopicPolicy:
    Type: AWS::SNS::TopicPolicy
    Properties:
      Topics:
        - Ref: MyTopic
      PolicyDocument:
        Id: MyTopicPolicy
        Version: '2012-10-17'
        Statement:
          - Sid: AllowSubscribe
            Effect: Allow
            Principal:
              AWS: &lt;ID&gt;
            Action:
              - SNS:Subscribe            
            Resource: !Ref MyTopic
  </code></pre>