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From "Andrew Sherman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-17226) Use strong hashing as security improvement
Date Wed, 02 Aug 2017 21:32:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-17226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16111758#comment-16111758
] 

Andrew Sherman commented on HIVE-17226:
---------------------------------------

Hi [~taoli-hwx] I have no idea, sorry. That's why I'm asking, in the hope of learning something.


> Use strong hashing as security improvement
> ------------------------------------------
>
>                 Key: HIVE-17226
>                 URL: https://issues.apache.org/jira/browse/HIVE-17226
>             Project: Hive
>          Issue Type: Improvement
>          Components: Security
>            Reporter: Tao Li
>            Assignee: Tao Li
>
> There have been 2 places identified where weak hashing needs to be replaced by SHA256.
> 1. CookieSigner.java uses MessageDigest.getInstance("SHA"). Mostly SHA is mapped to SHA-1,
which is not secure enough according to today's standards. We should use SHA-256 instead.
> 2. GenericUDFMaskHash.java uses DigestUtils.md5Hex. MD5 is considered weak and should
be replaced by DigestUtils.sha256Hex.



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