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https://issues.apache.org/jira/browse/DERBY-866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13178333#comment-13178333
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Knut Anders Hatlen commented on DERBY-866:
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The changes look fine to me. I noticed that the hashingscheme column contains
the hashing scheme identifier, the salt and the name of the hash function.
These parameters are also stored in the password column. I'm not sure exactly
what the hashingscheme column will be used for, but the salt will make every
user have a unique value in hashingscheme, and I think I'd expect every user
that hashed the password using the same algorithm to have the same value in
that column.
> Derby User Management Enhancements
> ----------------------------------
>
> Key: DERBY-866
> URL: https://issues.apache.org/jira/browse/DERBY-866
> Project: Derby
> Issue Type: Improvement
> Components: Services
> Affects Versions: 10.2.1.6
> Reporter: Francois Orsini
> Assignee: Rick Hillegas
> Attachments: Derby_User_Enhancement.html,
> Derby_User_Enhancement_v1.1.html, DummyAuthenticator.java,
> UserManagement.html, UserManagement.html, UserManagement.html,
> UserManagement.html, derby-866-01-aa-sysusers.diff,
> derby-866-01-ab-sysusers.diff, derby-866-02-ag-createDropUser.diff,
> derby-866-03-aa-resetModifyPassword.diff,
> derby-866-03-ab-resetModifyPassword.diff, derby-866-04-aa-fixRolesTest.diff,
> derby-866-05-aa-grantRevoke.diff, derby-866-06-aa-upgradeFrom10.1.diff,
> derby-866-07-aa-removeSQLPassword.diff, derby-866-08-aa-passwordHasher.diff,
> derby-866-08-ab-passwordHasher.diff, dummyCredentials.properties
>
>
> Proposal to enhance Derby's Built-In DDL User Management. (See proposal spec
> attached to the JIRA).
> Abstract:
> This feature aims at improving the way BUILT-IN users are managed in Derby by
> providing a more intuitive and familiar DDL interface. Currently (in
> 10.1.2.1), Built-In users can be defined at the system and/or database level.
> Users created at the system level can be defined via JVM or/and Derby system
> properties in the derby.properties file. Built-in users created at the
> database level are defined via a call to a Derby system procedure
> (SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY) which sets a database property.
> Defining a user at the system level is very convenient and practical during
> the development phase (EOD) of an application - However, the user's password
> is not encrypted and consequently appears in clear in the derby.properties
> file. Hence, for an application going into production, whether it is embedded
> or not, it is preferable to create users at the database level where the
> password is encrypted.
> There is no real ANSI SQL standard for managing users in SQL but by providing
> a more intuitive and known interface, it will ease Built-In User management
> at the database level as well as Derby's adoption.
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