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From "Andrew Jaquith (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JSPWIKI-20) Password hash should be salted
Date Wed, 28 Nov 2007 05:56:43 GMT

    [ https://issues.apache.org/jira/browse/JSPWIKI-20?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12546125
] 

Andrew Jaquith commented on JSPWIKI-20:
---------------------------------------

I should have said, "it raises the workfactor for an attacker by many many orders of magnitude."
The additional /developer/ workfactor is pretty low. :) 

> Password hash should be salted
> ------------------------------
>
>                 Key: JSPWIKI-20
>                 URL: https://issues.apache.org/jira/browse/JSPWIKI-20
>             Project: JSPWiki
>          Issue Type: Improvement
>          Components: Authentication&Authorization
>    Affects Versions: 2.5.139-beta
>            Reporter: Janne Jalkanen
>            Assignee: Janne Jalkanen
>         Attachments: jspwiki-20.patch
>
>
> The password hash is calculated as a direct SHA1-digest of the password.  Unfortunately
this means that it's vulnerable to brute-force attacks - there are many web sites which store
SHA1 hashes of common passwords.  The key space in most languages is pretty small... So the
password should really be properly salted with preferably a long, random string.

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