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Daniel John Debrunner commented on DERBY-2109:
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> 1) Non-delimited user identifiers:
> 1.1) I understand the User Identifier document as saying that identifiers are 
> case-INsensitive unless delimited by double-quotes.

This is where it gets somewhat complicated, that's not a blanket true 
statement. A user name can be submitted to Derby in a number of contexts, in 
some of those contexts unquoted input is case-insensitive, in others it is not.

Examples of case insensitive:
    Regular SQL identifiers
    user property in a JDBC connection request

Examples of case sensitive:
    SQL value passed to a procedure expecting a user name
    SQL value representing a user name in a system table

I was originally assuming that a user name in a policy file would be 
case-sensitive, thus
   grant DatabasePrincipal "eve", DatabasePrinicpal "EVE"
would grant the permissions to two different users.

However that may not be consistent with the usual way to input user names to 
Derby, which seems on the whole to use the rules for SQL identifiers.



> System privileges
> -----------------
>
>                 Key: DERBY-2109
>                 URL: https://issues.apache.org/jira/browse/DERBY-2109
>             Project: Derby
>          Issue Type: New Feature
>          Components: Security
>    Affects Versions: 10.3.1.4
>            Reporter: Rick Hillegas
>            Assignee: Martin Zaun
>         Attachments: DERBY-2109-02.diff, DERBY-2109-02.stat, 
> derby-2109-03-javadoc-see-tags.diff, DERBY-2109-04.diff, DERBY-2109-04.stat, 
> DERBY-2109-05and06.diff, DERBY-2109-05and06.stat, DERBY-2109-07.diff, 
> DERBY-2109-07.stat, DERBY-2109-08.diff, DERBY-2109-08.stat, 
> DERBY-2109-08_addendum.diff, DERBY-2109-08_addendum.stat, 
> SystemPrivilegesBehaviour.html, systemPrivs.html, systemPrivs.html, 
> systemPrivs.html, systemPrivs.html
>
>
> Add mechanisms for controlling system-level privileges in Derby. See the 
> related email discussion at 
> http://article.gmane.org/gmane.comp.apache.db.derby.devel/33151.
> The 10.2 GRANT/REVOKE work was a big step forward in making Derby more  
> secure in a client/server configuration. I'd like to plug more client/server 
> security holes in 10.3. In particular, I'd like to focus on  authorization 
> issues which the ANSI spec doesn't address.
> Here are the important issues which came out of the email discussion.
> Missing privileges that are above the level of a single database:
> - Create Database
> - Shutdown all databases
> - Shutdown System
> Missing privileges specific to a particular database:
> - Shutdown that Database
> - Encrypt that database
> - Upgrade database
> - Create (in that Database) Java Plugins (currently  Functions/Procedures, 
> but someday Aggregates and VTIs)
> Note that 10.2 gave us GRANT/REVOKE control over the following  
> database-specific issues, via granting execute privilege to system  
> procedures:
> Jar Handling
> Backup Routines
> Admin Routines
> Import/Export
> Property Handling
> Check Table
> In addition, since 10.0, the privilege of connecting to a database has been 
> controlled by two properties (derby.database.fullAccessUsers and 
> derby.database.defaultConnectionMode) as described in the security section of 
> the Developer's Guide (see 
> http://db.apache.org/derby/docs/10.2/devguide/cdevcsecure865818.html).

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