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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-5970) Check that connection attributes have legal values.
Date Sun, 11 Nov 2012 19:31:13 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13494944#comment-13494944

Knut Anders Hatlen commented on DERBY-5970:

DERBY-5907 suggests that we move that logic from ij. After support for warnings on connect
calls is added to the client, that is.
> Check that connection attributes have legal values.
> ---------------------------------------------------
>                 Key: DERBY-5970
>                 URL: https://issues.apache.org/jira/browse/DERBY-5970
>             Project: Derby
>          Issue Type: Bug
>          Components: Services
>    Affects Versions:
>            Reporter: Rick Hillegas
>         Attachments: AttributeChecks.html, derby-5970-01-aa-vetDecryptDatabaseValue.diff,
derby-5970-01-ab-vetDecryptDatabaseValue.diff, derby-5970-02-aa-vetDataEncryptionValue.diff
> At boot time, Derby does not check whether connection attributes are set to legal values.
This can cause them to be silently ignored. In the case of security operations like re(un)encryption,
these silent failures deceive the DBO into thinking that the security behavior of the database
has changed when, in fact, it hasn't. We should do the following:
> 1) Prevent decryptDatabase from being set to an illegal value. Since this is a new attribute,
there are no backward compatibility issues.
> 2) Evaluate other attributes on a case-by-case basis to determine which ones should raise
exceptions if they are set to illegal values. Technically, this may result in backwardly incompatible
behavior. However, I think that for most attributes, we will decide that the incompatibility
is minor and is a welcome bugfix.

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