How do you let only authorized user have access contents stored in Amazon's S3?

Question

Once you stored contents in S3 and make it public, then everyone have access to it. Is there a way to let only authorized users have access to the content stored in S3? For exam

Answer 1

The link given in the above answer is no longer correct -- Amazon had it's documentation reorganized. I think these are the correct pages to read:

• http://docs.amazonwebservices.com/AmazonS3/2006-03-01/dev/index.html?RESTAuthentication.html#RESTAuthenticationQueryStringAuth
• http://s3.amazonaws.com/doc/s3-developer-guide/RESTAuthentication.html