Ensure that your Amazon API Gateway APIs are using SSL certificates to verify that HTTP requests made to your backend system are from API Gateway service. This allows your HTTP backend to authorize only requests originating from Amazon API Gateway, even if the HTTP backend is publicly accessible.
To ensure that the HTTP requests made to your backend services are originating from your Amazon API Gateway APIs, it is strongly recommended to use client-side SSL certificates to verify the requester's authenticity.
To determine if your Amazon API Gateway API stages are using client-side SSL certificates, perform the following actions:
To generate an SSL certificate and associate it with your Amazon API Gateway API, perform the following actions: