the name of the bucket should correspond to list name defined in bug 1145365 - possibly shumway-allow-digest256
The name of the bucket shouldn't matter. In fact, this should be something that is read from a config file. If you lock the app to a specific bucket, you eliminate the possibility of being able to test against the list in a stage v. prod scenario.
An additional S3 bucket isn't needed and would probably be a hindrance. Closing.