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Posted to hdfs-dev@hadoop.apache.org by "Yi Liu (JIRA)" <ji...@apache.org> on 2014/07/01 09:04:24 UTC

[jira] [Created] (HDFS-6615) Replace java.security.SecureRandom with org.apache.hadoop.crypto.random.SecureRandom in HDFS

Yi Liu created HDFS-6615:
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             Summary: 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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