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https://issues.apache.org/jira/browse/HADOOP-10713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14033447#comment-14033447
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Yi Liu commented on HADOOP-10713:
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Great, thanks [~andrew.wang], this can save some allocations.
+1 to use byte[] as parameter.
> Document thread-safety of CryptoCodec#generateSecureRandom
> ----------------------------------------------------------
>
> Key: HADOOP-10713
> URL: https://issues.apache.org/jira/browse/HADOOP-10713
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: security
> Affects Versions: fs-encryption (HADOOP-10150 and HDFS-6134)
> Reporter: Andrew Wang
> Assignee: Andrew Wang
> Priority: Trivial
> Fix For: 3.0.0
>
> Attachments: HADOOP-10713.001.patch
>
>
> Random implementations have to deal with thread-safety; this should be
> specified in the javadoc so implementors know to do this for CryptoCodec
> subclasses.
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