Best practice: AmazonS3 url sharing

I pl开发者_如何学编程anning to keep access to files on AmazonS3 as private. But I would like to share file URL with a limited group of people.

What is recommended way for doing this ?

---

Just create a signed, time limited url and share it with them in whatever way you like.

You could also look at using AWS Identity and Access Management (IAM) (currently in Beta) for other ways to control access. But, honestly, querystring authentication is going to be the simplest to implement and should be fine for the majority of use cases.