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Date: Wed, 20 May 2009 13:58:46 -0700 (PDT)
From: "Kim Haase (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Updated: (DERBY-4229) encryptionKeyLength connection
 attribute should be documented
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     [ https://issues.apache.org/jira/browse/DERBY-4229?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kim Haase updated DERBY-4229:
-----------------------------

    Attachment: cdevcsecure67151.html
                DERBY-4229.diff

Attaching DERBY-4229.diff and cdevcsecure67151.html, which I hope provide the information needed here. The topic where the information seems to belong is "Specifying an alternate encryption algorithm."

I've added one sentence that I hope also fixes DERBY-2821, an issue filed a long time ago.

> encryptionKeyLength connection attribute should be documented
> -------------------------------------------------------------
>
>                 Key: DERBY-4229
>                 URL: https://issues.apache.org/jira/browse/DERBY-4229
>             Project: Derby
>          Issue Type: Bug
>          Components: Documentation
>            Reporter: Kathey Marsden
>            Assignee: Kim Haase
>         Attachments: cdevcsecure67151.html, DERBY-4229.diff
>
>
> The developer guide says:
> The length of the encryption key depends on the algorithm used:
> AES (128, 192, and 256 bits) 
> DES (the default) (56 bits) 
> DESede (168 bits) 
> All other algorithms (128 bits) 
> Note: The boot password should have at least as many characters as number of bytes in the encryption key (56 bits=8 bytes, 168 bits=24 bytes, 128 bits=16 bytes). The minimum number of characters for the boot password allowed by Derby is eight.
> For AES, however,  it does not tell how to change the default key length  of 128.  This can be changed with the encryptionKeyLength connection attribute.  The documentation should also specify that special policy files for the JRE may be necessary to accomodate the longer length.
> Also note that there is an outstanding issue DERBY-3710 regarding length of 192 for AES.

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