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https://issues.apache.org/jira/browse/HADOOP-14507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16365960#comment-16365960
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Steve Loughran commented on HADOOP-14507:
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Note that the value of {{fs.s3a.server-side-encryption.key}} can be a simple
string to a KMS key, which is the best way to manage keys. The only time you'd
have a number in there is for SSE-C encryption, where every client must supply
a key. That's not an easy one to work with...my stance is "just use AWS KMS"
If there's an API explicitly for managing the real encryption keys, that's only
relevant for SSE-C and future client-side encryption. In which case, we could
treat those keys differently
> extend per-bucket secret key config with explicit getPassword() on
> fs.s3a.$bucket.secret.key
> --------------------------------------------------------------------------------------------
>
> Key: HADOOP-14507
> URL: https://issues.apache.org/jira/browse/HADOOP-14507
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 2.8.1
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Critical
> Attachments: HADOOP-14507-001.patch, HADOOP-14507-002.patch,
> HADOOP-14507-003.patch, HADOOP-14507-004.patch, HADOOP-14507-005.patch,
> HADOOP-14507-006.patch, HADOOP-14507-006.patch, HADOOP-14507-007.patch
>
>
> Per-bucket jceks support turns out to be complex as you have to manage
> multiple jecks files & configure the client to ask for the right one. This is
> because we're calling {{Configuration.getPassword{"fs,s3a.secret.key"}}.
> If before that, we do a check for the explict id, key, session key in the
> properties {{fs.s3a.$bucket.secret}} ( & c), we could have a single JCEKs
> file with all the secrets for different bucket. You would only need to
> explicitly point the base config to the secrets file, and the right
> credentials would be picked up, if set
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