author | Dominic Pinkman <Dominic.Pinkman@Nokia.com> |
Thu, 21 Jan 2010 18:18:20 +0000 | |
changeset 0 | 89d6a7a84779 |
child 8 | ae94777fff8f |
permissions | -rw-r--r-- |
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<?xml version="1.0" encoding="utf-8"?> |
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. --> |
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<!-- This component and the accompanying materials are made available under the terms of the License |
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"Eclipse Public License v1.0" which accompanies this distribution, |
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". --> |
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<!-- Initial Contributors: |
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Nokia Corporation - initial contribution. |
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Contributors: |
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--> |
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<!DOCTYPE concept |
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PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
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<concept id="GUID-C893C9E6-47B8-5149-9808-0274C61CF3D7" xml:lang="en"><title>OCSP-SWI |
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Integration</title><abstract><p>The Symbian platform provides the ability to validate and manage <xref href="GUID-C676C4E6-93AF-59E9-886D-74D59F154490.dita">X.509</xref> certificates. |
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This ability is integrated into the software installation process to provide |
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Secure Software Install (SWI) with the functionality of performing certificate |
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checking at installation time. During installation, SWI checks whether the |
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certificates associated with the application to be installed have been revoked. |
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It performs this check by using Online Certificate Status Protocol (OCSP). </p><p>You |
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can configure SWI to enable or disable the revocation status check of certificates. |
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In addition, SWI can also be configured to supply the OCSP client with a default |
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Uniform Resource Identifier (URI) for the OCSP server.</p></abstract><prolog><metadata><keywords/></metadata></prolog><conbody> |
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<p>You can configure SWI to enable or disable the revocation status check |
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of certificates. In addition, SWI can also be configured to supply the OCSP |
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client with a default Uniform Resource Identifier (URI) for the OCSP server. </p> |
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<section><title>Installing software based on OCSP check</title> <p>SWI validates |
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the certificate in the install file. As part of validation, it carries out |
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revocation check, depending on the setting of the <codeph>OcspEnabled</codeph> parameter |
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in the <codeph>swipolicy.ini</codeph> file. If the revocation check option |
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is not enabled, a warning is displayed giving options to carry out revocation |
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check, to continue without revocation check or to cancel the installation. |
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If the option is enabled, all certificates in the chain except the <xref href="GUID-2800C486-2FB4-5C5C-990F-CC1A290F7E0C.dita">root</xref> are |
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checked. </p> <p> <b>Note:</b> For details on how certificates are validated, |
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see <xref href="GUID-A3B58436-07E4-565B-800B-86435D205461.dita">Certificate Validation |
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in PKIX</xref>. </p> <p>The results of revocation check decide whether the |
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application can be installed. The following are the scenarios associated with |
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the certificate revocation check: </p> <ul> |
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<li id="GUID-EE8C335A-B74D-56D3-9DC5-8E7D9D9C8EB8"><p>If the OCSP client indicates |
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that no certificates are revoked and the operation completes successfully |
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with no errors or warnings, the software can be installed. </p> </li> |
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<li id="GUID-0F861436-15DE-56C7-A06D-C93C30829313"><p>If OCSP indicates that |
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any of the certificates is revoked or if the signature on the OCSP response |
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is invalid, a security error is issued and the software cannot be installed. </p> </li> |
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<li id="GUID-F8A8F1FB-DC90-58B0-98B7-8EFE4255A2D6"><p>If the revocation status |
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of a certificate cannot be determined (because of reasons like lack of network |
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access or OCSP responder error), SWI behaves as if the software were unsigned. |
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The setting of the <codeph>AllowUnsigned</codeph> parameter in the <codeph>swipolicy.ini</codeph> file |
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determines whether the unsigned software can be installed or not. If the parameter |
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value is true, SWI issues a warning before installing but allows installation |
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of the software. Otherwise it issues an error and does not allow installation. </p> </li> |
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</ul> <p> <b>Note:</b> For details of the various parameters in <codeph>swipolicy.ini</codeph>, |
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see <xref href="GUID-F8C2E97C-35EC-5437-BC6B-E2A622D2DC4D.dita">Secure Software |
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Install Reference</xref>. </p> </section> |
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</conbody><related-links> |
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<link href="GUID-90DF40EF-7D3F-551D-9957-A3756317A254.dita"><linktext>Online Certificate |
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Status Protocol</linktext></link> |
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</related-links></concept> |