Web pages in Amazon S3

      Each client page is an object in Amazon S3 which is addressable by a unique DNS CNAME such as https://s3.amazon.com/foo/bar.html.  Where s3.amazon.com translates to the IP address of the S3 endpoint and /foo/bar.html is the unique name given to the object in S3.

S3 client side encryption

You can build your own library that encrypts your objects data on the client side before uploading it to Amazon S3. Or you can use the AWS provided SDK. Currently, only the AWS SDK for Java supports client-side encryption.