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https://issues.apache.org/jira/browse/HDFS-6615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14048896#comment-14048896
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Uma Maheswara Rao G commented on HDFS-6615:
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+1 for doing this. We need to wait until the branch merge if we want to target 
this on trunk directly.

> Replace java.security.SecureRandom with 
> org.apache.hadoop.crypto.random.SecureRandom in HDFS
> --------------------------------------------------------------------------------------------
>
>                 Key: HDFS-6615
>                 URL: https://issues.apache.org/jira/browse/HDFS-6615
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: security
>    Affects Versions: 3.0.0
>            Reporter: Yi Liu
>            Assignee: Yi Liu
>             Fix For: 3.0.0
>
>
> In java, {{SecureRandom}} is slow and is *pseudo* random bytes.
> In HADOOP-10734, we implement *true* secure random using hardware random 
> number generator, it has high performance about 22x speedup. 
> If the server doesn't support rdrand, use java {{SecureRandom}} as fallback.



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