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https://issues.apache.org/jira/browse/HADOOP-15006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16342920#comment-16342920
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Steve Loughran commented on HADOOP-15006:
-----------------------------------------

I'm going to touch this right now as its at the too raw stage, but progressing. 
I'll let yetus be the style police, including rejecting files for lack of ASF 
copyright, line endings etc.

Ignoring that
 * what's your proposal for letting the client encryption be an optional 
feature, with key? Config
 * Once its configurable, the test would need to use two FS instances, one 
without encryption, one with.
 * Is the file length as returned in listings 100% consistent with the amount 
of data you get to read?

> Encrypt S3A data client-side with Hadoop libraries & Hadoop KMS
> ---------------------------------------------------------------
>
>                 Key: HADOOP-15006
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15006
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: fs/s3, kms
>            Reporter: Steve Moist
>            Priority: Minor
>         Attachments: S3-CSE Proposal.pdf, s3-cse-poc.patch
>
>
> This is for the proposal to introduce Client Side Encryption to S3 in such a 
> way that it can leverage HDFS transparent encryption, use the Hadoop KMS to 
> manage keys, use the `hdfs crypto` command line tools to manage encryption 
> zones in the cloud, and enable distcp to copy from HDFS to S3 (and 
> vice-versa) with data still encrypted.



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