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HTML
161 lines
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<title>Create and operate a Local CA</title>
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<body id="rzahu4an-acting_own_ca"><a name="rzahu4an-acting_own_ca"><!-- --></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">Create and operate a Local CA</h1>
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<div><p>This information explains how to create and operate
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a Local Certificate Authority (CA) to issue private certificates for your
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applications.</p>
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<div class="section"> <p>After careful review of your security needs and policies, you
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have decided to operate a Local Certificate Authority (CA) to issue private
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certificates for your applications. You can use Digital Certificate Manager
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(DCM) to create and operate your own Local CA. DCM provides you with a guided
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task path that takes you through the process of creating a CA and using it
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to issue certificates to your applications. The guided task path ensures that
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you have everything you need to begin using digital certificates to configure
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applications to use SSL and to sign objects and verify object signatures. </p>
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<div class="note"><span class="notetitle">Note:</span> To
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use certificates with the <span class="keyword">IBM<sup>®</sup> HTTP Server for i5/OS™</span> ,
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you must create and configure your Web server before working with DCM. When
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you configure a Web server to use SSL, an application ID is generated for
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the server. You must make a note of this application ID so that you can use
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DCM to specify which certificate this application will use for SSL. <p>Do
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not end and restart the server until you use DCM to assign a certificate to
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the server. If you end and restart the *ADMIN instance of the Web server before
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assigning a certificate to it, the server will not start and you will not
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be able to use DCM to assign a certificate to the server. </p>
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</div>
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<p>To
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use DCM to create and operate a Local CA, follow these steps: </p>
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</div>
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<ol><li class="stepexpand"><span><a href="rzahurzahu66adcmstart.htm#rzahu66a-dcm_start">Start
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DCM</a>.</span></li>
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<li class="stepexpand"><span>In the navigation frame of DCM, select Create a Certificate Authority
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(CA) to display a series of forms. These forms guide you through the process
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of creating a Local CA and completing other tasks needed to begin using digital
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certificates for SSL, object signing, and signature verification. </span> <div class="note"><span class="notetitle">Note:</span> If
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you have questions about how to complete a specific form in this guided task,
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select the question mark (?) button at the top of the page to access the online
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help.</div>
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</li>
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<li class="stepexpand"><span>Complete all the forms for this guided task. In using these forms
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to perform all the tasks that you need to set up a working Local Certificate
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Authority (CA), you: </span><ol type="a"><li class="substepexpand"><span>Choose how to store the private key for the Local CA certificate.
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(This step is provided only if you have an IBM Cryptographic Coprocessor installed
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on your system. If your system does not have a cryptographic coprocessor,
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DCM automatically stores the certificate and its private key in the Local
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Certificate Authority (CA) certificate store.)</span></li>
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<li class="substepexpand"><span>Provide identifying information for the Local CA. </span></li>
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<li class="substepexpand"><span>Install the Local CA certificate on your PC or in your browser
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so that your software can recognize the Local CA and validate certificates
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that the CA issues.</span></li>
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<li class="substepexpand"><span>Choose the policy data for your Local CA.</span></li>
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<li class="substepexpand"><span>Use the new Local CA to issue a server or client certificate
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that your applications can use for SSL connections. (If your system has an IBM Cryptographic
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Coprocessor installed, this step allows you to select how to store the private
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key for the server or client certificate. If your system does not have a coprocessor,
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DCM automatically places the certificate and its private key in the *SYSTEM
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certificate store. DCM creates the *SYSTEM certificate store as part of this
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subtask.) </span></li>
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<li class="substepexpand"><span>Select the applications that can use the server or client certificate
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for SSL connections.</span> <div class="note"><span class="notetitle">Note:</span> If you used DCM previously to create
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the *SYSTEM certificate store to manage certificates for SSL from a public
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Internet CA, you do not perform this or the previous step.</div>
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</li>
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<li class="substepexpand"><span>Use the new Local CA to issue an object signing certificate
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that applications can use to digitally sign objects. This subtask creates
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the *OBJECTSIGNING certificate store; this is the certificate store that you
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use to manage object signing certificates.</span></li>
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<li class="substepexpand"><span>Select the applications that can use the object signing certificate
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to place digital signatures on objects.</span> <div class="note"><span class="notetitle">Note:</span> If you used DCM previously
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to create the *OBJECTSIGNING certificate store to manage object signing certificates
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from a public Internet CA, you do not perform this or the previous step.</div>
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</li>
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<li class="substepexpand"><span>Select the applications that will trust your Local CA.</span></li>
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</ol>
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</li>
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</ol>
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<div class="section"> <p>When you finish the guided task, you have everything that you
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need to begin <a href="../rzain/rzainoverview.htm">configuring
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your applications to use SSL</a> for secure communications. </p>
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<p>After
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you configure your applications, users that access the applications through
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an SSL connection must use DCM to obtain a copy of the Local CA certificate.
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Each user must have a copy of the certificate so that the user's client software
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can use it to authenticate the identity of the server as part of the SSL negotiation
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process. Users can use DCM either to copy the Local CA certificate to a file
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or to download the certificate into their browser. How the users store the
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Local CA certificate depends on the client software that they use to establish
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an SSL connection to an application .</p>
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<p>Also, you can use this Local CA
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to issue certificates to applications on other <span class="keyword">iSeries™</span> systems
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in your network. </p>
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<p>To learn more about using DCM to manage user certificates
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and how users can obtain a copy of the Local CA certificate to authenticate
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certificates the Local CA issues, review these topics: </p>
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</div>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzahurzahu404selectingusercatasks.htm">Manage user certificates</a></strong><br />
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You can use Digital Certificate Manager (DCM) to obtain certificates
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with SSL or associate existing certificates with their <span class="keyword">iSeries</span> user
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profiles.</li>
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<li class="ulchildlink"><strong><a href="rzahuissuepublicusercerts.htm">Use APIs to programmatically issue certificates to non-iSeries users</a></strong><br />
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Use this information to learn how you can use your Local CA to
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issue private certificates to users without associating the certificate
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with an <span class="keyword">iSeries</span> user profile.</li>
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<li class="ulchildlink"><strong><a href="rzahurzahu461installcacert.htm">Obtain a copy of the private CA certificate</a></strong><br />
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Review this information to learn how to obtain a copy of the private CA certificate and install it on your PC so that you can authenticate any server certificates that the CA issues.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzahudcmfirsttime.htm" title="Use this information to learn how to get started managing certificates from a public Internet Certificate Authority (CA) or how to create and operate a private Local CA to issue certificates.">Set up certificates for the first time</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="rzahurzahu4afinternetvsprivcert.htm" title="Review this information to learn how to determine which type of certificate (public or private) best suits your business needs.">Public certificates versus private certificates</a></div>
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<div><a href="rzahurzahu404selectingusercatasks.htm" title="You can use Digital Certificate Manager (DCM) to obtain certificates with SSL or associate existing certificates with their iSeries user profiles.">Manage user certificates</a></div>
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</div>
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<div class="reltasks"><strong>Related tasks</strong><br />
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<div><a href="rzahurzahu4apcaanotherdcm.htm" title="Review this information to learn how to use a private Local CA on one system to issue certificates for use on other iSeries systems.">Use a Local CA to issue certificates for other iSeries systems</a></div>
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<div><a href="rzahurzahu461installcacert.htm" title="Review this information to learn how to obtain a copy of the private CA certificate and install it on your PC so that you can authenticate any server certificates that the CA issues.">Obtain a copy of the private CA certificate</a></div>
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</div>
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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="rzahuissuepublicusercerts.htm" title="Use this information to learn how you can use your Local CA to issue private certificates to users without associating the certificate with an iSeries user profile.">Use APIs to programmatically issue certificates to non-iSeries users</a></div>
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</div>
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</div>
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