102 lines
6.3 KiB
HTML
102 lines
6.3 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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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Save and restore considerations for signed objects" />
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<meta name="abstract" content="Learn how signed objects affect how you perform save and restore tasks for your system." />
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<meta name="description" content="Learn how signed objects affect how you perform save and restore tasks for your system." />
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<meta name="DC.Relation" scheme="URI" content="rzalzmanageobjects.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzalzsigningsystemcommands.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" />
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<meta name="DC.Identifier" content="saverestoresigned" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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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>Save and restore considerations for signed objects</title>
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</head>
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<body id="saverestoresigned"><a name="saverestoresigned"><!-- --></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">Save and restore considerations for signed objects</h1>
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<div><p>Learn how signed objects affect how you perform save and restore
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tasks for your system.</p>
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<p>There are several system values that can <a href="../rzakz/rzakzrestoreoperation.htm">affect restore operations</a> for your system. Only one of
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these system values, the <strong>verify object signatures during restore (QVFYOBJRST)</strong> <a href="rzalzsigningsystemcommands.htm#signingsystemcommands">system value</a>,
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determines how the system handles signed objects when restoring them. The
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setting that you choose for this system value lets you determine how the restore
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process handles verification of objects without signatures or with signatures
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that are not valid. </p>
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<p>Some save and restore commands affect signed objects or determine how your
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system handles signed and unsigned objects during save and restore operations.
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You need to be aware of these commands and their affect on signed objects
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so that you can better manage your system and to avoid potential problems
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that may occur. </p>
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<div class="p">These commands can verify signatures on objects during save and restore
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operations: <ul><li>The Save Licensed Program (<a href="../cl/savlicpgm.htm">SAVLICPGM</a>) command.</li>
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<li>The Restore (<a href="../cl/rst.htm">RST</a>)
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command.</li>
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<li>The Restore Library (<a href="../cl/rstlib.htm">RSTLIB</a>)
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command.</li>
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<li>The Restore Licensed Program (<a href="../cl/rstlicpgm.htm">RSTLICPGM</a>) command.</li>
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<li>The Restore object (<a href="../cl/rstobj.htm">RSTOBJ</a>)
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command.</li>
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</ul>
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</div>
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<div class="p">These commands allow you to save and restore certificate stores; certificate
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stores are security-sensitive objects that contain the certificates that you
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use to sign objects and verify signatures: <ul><li>The Save (<a href="../cl/sav.htm">SAV</a>)
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command.</li>
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<li>The Save Security Data (<a href="../cl/savsecdta.htm">SAVSECDTA</a>) command.</li>
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<li>The Save System (<a href="../cl/savsys.htm">SAVSYS</a>)
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command.</li>
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<li>The Restore (<a href="../cl/rst.htm">RST</a>)
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command.</li>
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<li>The Restore User Profiles (<a href="../cl/rstusrprf.htm">RSTUSRPRF</a>) command. </li>
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</ul>
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</div>
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<div class="p"> Some save commands, depending on the parameter values that you use, may
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lose the signature from an object on the save media, thereby negating the
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security that the signature provides. For example, <em>any</em> save operation
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that refers to a command (*CMD) object with a target release before V5R2M0
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causes the commands to be saved without signatures. Removing the signature
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might cause problems with the objects affected. At the very least, you will
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no longer be able to verify the source of the object as a trusted one and
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will not be able to verify the signature to detect changes to the object.
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Use these commands only on those signed objects that you have created (as
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opposed to signed objects that you obtain from others such as IBM<sup>®</sup> or vendors).
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<div class="note"><span class="notetitle">Note:</span> To verify whether a Save command lost an object's signature, you must
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restore the object into a different library than the one from which you saved
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it (for example, QTEMP). You can then use the DSPOBJD command to determine
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if the object on the save media lost its signature. </div>
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</div>
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<p>You need to be aware of this potential for the following specific save
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commands, as well as for save commands in general: </p>
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<ul><li>The Save (<a href="../cl/sav.htm">SAV</a>)
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command.</li>
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<li>The Save Library (<a href="../cl/savlib.htm">SAVLIB</a>)
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command.</li>
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<li>The Save Object (<a href="../cl/savobj.htm">SAVOBJ</a>)
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command.</li>
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</ul>
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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="rzalzmanageobjects.htm" title="Use this information to learn about system commands and system values that you can use to work with signed objects and how signed objects affect backup and recovery processes.">Manage signed objects</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="rzalzsigningsystemcommands.htm" title="Learn about system values and commands that you can use to manage signed objects or that have an affect on signed objects when you run them.">System values and commands that affect 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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