77 lines
4.9 KiB
HTML
77 lines
4.9 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta name="DC.Type" content="task" />
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<meta name="DC.Title" content="Troubleshoot signature verification errors" />
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<meta name="abstract" content="Use the following table to find information to help you troubleshoot some of the more common problems that you may encounter when verifying digital signatures on objects." />
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<meta name="description" content="Use the following table to find information to help you troubleshoot some of the more common problems that you may encounter when verifying digital signatures on objects." />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" />
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<meta name="DC.Identifier" content="troubleverify" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Troubleshoot signature verification errors</title>
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</head>
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<body id="troubleverify"><a name="troubleverify"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Troubleshoot signature verification errors</h1>
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<div><p>Use the following table to find information to help you troubleshoot
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some of the more common problems that you may encounter when verifying digital
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signatures on objects.</p>
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<div class="section"> <div class="p">
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="border" border="1" rules="all"><thead align="left"><tr><th valign="top" width="47.474747474747474%" id="d0e22">Problem</th>
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<th valign="top" width="52.52525252525253%" id="d0e24">Possible solution</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" width="47.474747474747474%" headers="d0e22 ">Restore process fails for objects without signatures.</td>
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<td valign="top" width="52.52525252525253%" headers="d0e24 ">If the lack of a signature is not a concern, check to
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see if the <a href="../rzakz/rzakzqvfyobjrst.htm ">QVFYOBJRST</a> system
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value is set to 5. A value of 5 specifies that unsigned objects cannot be
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restored. Change the value to 3 and try the restore again. </td>
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</tr>
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<tr><td valign="top" width="47.474747474747474%" headers="d0e22 ">Restore process fails for objects with signatures.</td>
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<td valign="top" width="52.52525252525253%" headers="d0e24 ">This may happen if the *SIGNATUREVERIFICATION certificate
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store was transferred to the system and DCM was not used to change the password
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for it. In such a case, the certificates that the store contains cannot be
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used to verify the signatures on objects during the restore process. Use DCM
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to change the password for the certificate store. If you do not know the password,
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you will need to delete the certificate store; recreate it and use DCM to
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change the password.</td>
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</tr>
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<tr><td valign="top" width="47.474747474747474%" headers="d0e22 ">When restoring or installing a product, you get an error
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because a signature failed to verify.</td>
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<td valign="top" width="52.52525252525253%" headers="d0e24 ">When an object signature fails to verify correctly,
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the failure may indicate that the object has been changed since it was signed.
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If object integrity is the issue, do not change the QVFYOBJRST system value
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or perform other actions that might allow the questionable object to restore.
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Doing so can circumvent the security that signature verification provides
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and allow a harmful object onto your system. Instead, you need to contact
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the object signer to determine the appropriate action to take to resolve the
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problem. </td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzalzobjectsintrouble.htm" title="Use this information to learn about commands and system values that you can use to work with signed objects and how signed objects affect backup and recovery processes.">Troubleshooting signed objects</a></div>
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</div>
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</div>
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</body>
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</html>
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