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https://issues.apache.org/jira/browse/HADOOP-10635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14012075#comment-14012075
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Alejandro Abdelnur commented on HADOOP-10635:
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Adding a method {{byte[] generateSecureRandom(int bytes)}} would do the trick,
then the impl could get a SecureRandom instance from the same provider used to
get the cipher.
> Add a method to CryptoCodec to generate SRNs for IV
> ---------------------------------------------------
>
> Key: HADOOP-10635
> URL: https://issues.apache.org/jira/browse/HADOOP-10635
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: security
> Affects Versions: fs-encryption (HADOOP-10150 and HDFS-6134)
> Reporter: Alejandro Abdelnur
> Assignee: Yi Liu
> Fix For: 3.0.0
>
>
> SRN generators are provided by crypto libraries. the CryptoCodec gives access
> to a crypto library, thus it makes sense to expose the SRN generator on the
> CryptoCodec API.
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