你可以对上传到S3的文件设置权限吗？
或者如果有人知道文件的公会/网址，他们可以公开访问它？
如果是，我们可以设置什么样的权限？
Can you put permissions on files that are uploaded to S3?
Or if someone knows the guild/url to the file they can access it publicly?
If yes, what kind of permissions can we set?
最满意答案
权限是通过一个关键机制来实现的。 您可以为每个人提供可读的内容（无密码）或需要密码。 您可以通过生成一个可以限制最大带宽的密钥URI来授予上传权限。
关于访问的亚马逊FAQ
有关认证和访问控制的亚马逊文档
由于dcaunt状态， 查询字符串认证需要过期日期。
Permissions are implemented with a key mechanism. You can make content readable for everyone (no password) or require a password. You grant upload privileges by generating a keyed URI which you can limit to a maximum bandwidth.
Amazon FAQ about access
Amazon documentation on authentication and access control
As dcaunt states, query string authentication requires an expiration date.
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