hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Yi Liu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-10967) Improve DefaultCryptoExtension#generateEncryptedKey performance
Date Wed, 13 Aug 2014 12:50:12 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-10967?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yi Liu updated HADOOP-10967:
----------------------------

    Attachment: HADOOP-10967.001.patch

Tested in local environment and found big performance improvement because #1

> Improve DefaultCryptoExtension#generateEncryptedKey performance 
> ----------------------------------------------------------------
>
>                 Key: HADOOP-10967
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10967
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>    Affects Versions: 2.6.0
>            Reporter: Yi Liu
>            Assignee: Yi Liu
>         Attachments: HADOOP-10967.001.patch
>
>
> This JIRA is to improve generateEncryptedKey performance:
> *1.* SecureRandom#generateSeed is very slow, we should use SecureRandom#nextBytes to
generate the {{IV}} which is much faster. 
> *2.* Define SecureRandom as threadlocal object which can improve the performance a bit.
> *3.* Use {{new SecureRandom()}} instead of SHA1PRNG, the former has better entropy.



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Mime
View raw message