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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-11891) OsSecureRandom should lazily fill its reservoir
Date Fri, 06 Jan 2017 01:18:58 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-11891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Junping Du updated HADOOP-11891:
--------------------------------
    Fix Version/s: 2.8.0

> OsSecureRandom should lazily fill its reservoir
> -----------------------------------------------
>
>                 Key: HADOOP-11891
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11891
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 2.7.0
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>             Fix For: 2.8.0, 2.7.1, 3.0.0-alpha1
>
>         Attachments: HADOOP-11891.1.patch, HADOOP-11891.2.patch
>
>
> The {{OsSecureRandom}} class that is initialized by on the the {{CryptoCodec}} implementations
eagerly fills its reservoir of random bits. This will result in too many file descriptors
being opened simply and is not really required if the client already has a random IV and key
needed for decryption.



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