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https://issues.apache.org/jira/browse/HADOOP-15312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16399852#comment-16399852
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LiXin Ge commented on HADOOP-15312:
-----------------------------------
Yes, only the "AES" substring is used in {{KeyGenerator.getInstance()}}.
But in the {{FSDirEncryptionZoneOp.createEncryptionZone(...)}}, the full string
of the configuration key is used to get {{CipherSuite}}, and
"AES/CTR/NoPadding" is the only case that valid for converting {{CipherSuite}}.
> Undocumented KeyProvider configuration keys
> -------------------------------------------
>
> Key: HADOOP-15312
> URL: https://issues.apache.org/jira/browse/HADOOP-15312
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Wei-Chiu Chuang
> Assignee: LiXin Ge
> Priority: Major
> Attachments: HADOOP-15312.001.patch
>
>
> Via HADOOP-14445, I found two undocumented configuration keys:
> hadoop.security.key.default.bitlength and hadoop.security.key.default.cipher
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