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https://issues.apache.org/jira/browse/HADOOP-10734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14052094#comment-14052094
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Yi Liu commented on HADOOP-10734:
---------------------------------
Thanks [~tucu00] for your comments.
Openssl secure random is separated functionality and is used in
{{OpensslAesCtrCryptoCodec}} and also can be used directly. We should have a
java class couple with the JNI implementation. It’s not suitable to put
{code}
private native static void initSR();
private native boolean nextRandBytes(byte[] bytes);
{code}
into {{OpensslCipher}}. Having two classes makes code more clear.
{{OpensslAesCtrCryptoCodec}} doesn't contain native methods directly, it will
use {{OpensslCipher}} and Openssl secure random.
> Implementation of true secure random with high performance using hardware
> random number generator.
> --------------------------------------------------------------------------------------------------
>
> Key: HADOOP-10734
> URL: https://issues.apache.org/jira/browse/HADOOP-10734
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: security
> Affects Versions: fs-encryption (HADOOP-10150 and HDFS-6134)
> Reporter: Yi Liu
> Assignee: Yi Liu
> Fix For: fs-encryption (HADOOP-10150 and HDFS-6134)
>
> Attachments: HADOOP-10734.patch
>
>
> This JIRA is to implement Secure random using JNI to OpenSSL, and
> implementation should be thread-safe.
> Utilize RdRand to return random numbers from hardware random number
> generator. It's TRNG(True Random Number generators) having much higher
> performance than {{java.security.SecureRandom}}.
> https://wiki.openssl.org/index.php/Random_Numbers
> http://en.wikipedia.org/wiki/RdRand
> https://software.intel.com/en-us/articles/performance-impact-of-intel-secure-key-on-openssl
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