having no ACLs/Bucket owner enforced object ownership exposes owner canonical ID and displayname
You guys recommend not having ACLs on s3 buckets now, but if I create a bucket that is going to have read-only public access (ListBucket & GetObject only) from my application, then ListObjects/ListBucket on that bucket exposes both the Owner ID and DisplayName, which is not something I want public.
If I switch the bucket to Object writer ownership, the ListBucket results are nice and clean, containing only the relevant object info (key, etag, size, storage class).
It seems bad to leak the owner ID and display name like this? I'm going to keep it on Object writer I guess to avoid this even though the console has warnings all over the place about not using ACLs.
Chris
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The canonical user ID is the Amazon S3–only concept. It is a 64-character obfuscated version of the account ID. Therefore you can't get anything out of the canonical user ID because it's a one-way hash (e.g. SHA-256).
For more information, please refer to the following links: https://docs.aws.amazon.com/AmazonS3/latest/userguide/finding-canonical-user-id.html https://docs.aws.amazon.com/AmazonS3/latest/userguide/example-walkthroughs-managing-access-example4.html
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