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https://issues.apache.org/jira/browse/JAMES-3674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benoit Tellier closed JAMES-3674.
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Fix Version/s: 3.7.0
Resolution: Fixed
> Support password salting and hash scheme upgrading
> --------------------------------------------------
>
> Key: JAMES-3674
> URL: https://issues.apache.org/jira/browse/JAMES-3674
> Project: James Server
> Issue Type: Improvement
> Components: UsersStore & UsersRepository
> Affects Versions: master
> Reporter: Karsten Otto
> Priority: Major
> Fix For: 3.7.0
>
> Time Spent: 7h 20m
> Remaining Estimate: 0h
>
> Currently, James does not use salt during password hashing, so its password
> database is vulnerable to rainbow table cracking if someone ever manages to
> steal it. Furthermore, there is no mechanism to upgrade user passwords to
> stronger/different hashing once they are created (cf. legacy hashing mode).
> This is a problem for any installation that does not employ an external LDAP
> user database.
> A simple solution is to include the user name as salt in the password hash.
> For this purpose, the {{hashingMode}} choices in {{usersrepository.xml}}
> should include an new mode "salted" in addition to "legacy" and "default".
> Additionally, the database should include an explicit column in the user
> table, which specifies the {{hashingMode}} of the stored password, and is
> used during verification. However, when a user changes the password, the
> configured {{algorithm}} and {{hashingMode}} from {{usersrepository.xml}}
> will be used instead. This way, the database gradually upgrades over time to
> the preferred setting.
> T-Shirt size L.
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