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| <title>10.2. Miscellaneous — Plug & Trust MW v03.00.05 documentation</title> |
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| <span class="navbar-text navbar-version pull-left"><b>v03.00.05</b></span> |
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| <li class="toctree-l1"><a class="reference internal" href="../index.html">1. NXP Plug & Trust Middleware</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../organization-of-documentation.html">1.1. Organization of Documentation</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../folder-structure.html">1.2. Folder Structure</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../sw-prerequisites.html">1.3. List of Platform Prerequisites</a></li> |
| </ul> |
| </li> |
| <li class="toctree-l1"><a class="reference internal" href="../changes/index.html">2. Changes</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/pending.html">2.1. Pending Refactoring items</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/pending.html#known-limitations">2.2. Known limitations</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v03_00_05.html">2.3. Release <code class="docutils literal notranslate"><span class="pre">v03.00.05</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v03_00_04.html">2.4. Release <code class="docutils literal notranslate"><span class="pre">v03.00.04</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v03_00_03.html">2.5. Release <code class="docutils literal notranslate"><span class="pre">v03.00.03</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v03_00_02.html">2.6. Release <code class="docutils literal notranslate"><span class="pre">v03.00.02</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_16_01.html">2.7. Release <code class="docutils literal notranslate"><span class="pre">v02.16.01</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_16_00.html">2.8. Release <code class="docutils literal notranslate"><span class="pre">v02.16.00</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_15_00.html">2.9. Release <code class="docutils literal notranslate"><span class="pre">v02.15.00</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_14_00.html">2.10. Release <code class="docutils literal notranslate"><span class="pre">v02.14.00</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_12_00.html">2.11. Release <code class="docutils literal notranslate"><span class="pre">v02.12.05</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_12_00.html#release-v02-12-04">2.12. Release <code class="docutils literal notranslate"><span class="pre">v02.12.04</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_12_00.html#release-v02-12-03">2.13. Release <code class="docutils literal notranslate"><span class="pre">v02.12.03</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_12_00.html#release-v02-12-02">2.14. Release <code class="docutils literal notranslate"><span class="pre">v02.12.02</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_12_00.html#release-v02-12-01">2.15. Release <code class="docutils literal notranslate"><span class="pre">v02.12.01</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_12_00.html#release-v02-12-00">2.16. Release <code class="docutils literal notranslate"><span class="pre">v02.12.00</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_11_03.html">2.17. Release <code class="docutils literal notranslate"><span class="pre">v02.11.03</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_11_01.html">2.18. Internal Release <code class="docutils literal notranslate"><span class="pre">v02.11.01</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_11_00.html">2.19. Release <code class="docutils literal notranslate"><span class="pre">v02.11.00</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_10_00.html">2.20. Release <code class="docutils literal notranslate"><span class="pre">v02.10.00</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_09_00.html">2.21. Release <code class="docutils literal notranslate"><span class="pre">v02.09.00</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_07_00.html">2.22. Release <code class="docutils literal notranslate"><span class="pre">v02.07.00</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_06_00.html">2.23. Release <code class="docutils literal notranslate"><span class="pre">v02.06.00</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_05_00_to_v02_03_00.html">2.24. Release <code class="docutils literal notranslate"><span class="pre">v02.05.00</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_05_00_to_v02_03_00.html#release-v02-04-00">2.25. Release <code class="docutils literal notranslate"><span class="pre">v02.04.00</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../changes/v02_05_00_to_v02_03_00.html#release-02-03-00">2.26. Release <code class="docutils literal notranslate"><span class="pre">02.03.00</span></code></a></li> |
| </ul> |
| </li> |
| <li class="toctree-l1"><a class="reference internal" href="../stack/index.html">3. Plug & Trust MW Stack</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/features.html">3.1. Features</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/features.html#plug-trust-mw-block-diagram">3.2. Plug & Trust MW : Block Diagram</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../sss-apis.html">3.3. SSS APIs</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/se05xfeatures.html">3.4. SSS APIs: SE051 vs SE050</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/param_checks.html">3.5. Parameter Check & Conventions</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/i2cm.html">3.6. I2CM / Secure Sensor</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/logging.html">3.7. Logging</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/feature-file.html">3.8. Feature File - <code class="docutils literal notranslate"><span class="pre">fsl_sss_ftr.h</span></code></a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/platf-scp-from-fs.html">3.9. Using Platform SCP Keys from File System</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/auth/auth-objects.html">3.10. Auth Objects</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/auth/auth-objects-userid.html">3.11. Auth Objects : UserID</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/auth/auth-objects-aeskey.html">3.12. Auth Objects : AESKey</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/auth/auth-objects-eckey.html">3.13. Auth Objects : ECKey</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/key-id-range.html">3.14. Key Id Range and Purpose</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/key-id-range.html#authentication-keys">3.15. Authentication Keys</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../stack/key-id-range.html#trust-provisioned-keyids">3.16. Trust provisioned KeyIDs</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../sss/ex/doc/puf-scp03.html">3.17. SCP03 with PUF</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../sss/doc/sss_heap_management.html">3.18. SSS Heap Management</a></li> |
| </ul> |
| </li> |
| <li class="toctree-l1"><a class="reference internal" href="../building/index.html">4. Building / Compiling</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../building/windows.html">4.1. Windows Build</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../building/frdm-k64f-sdk.html">4.2. Import MCUXPresso projects from SDK</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../building/frdm-k64f-cmake.html">4.3. Freedom K64F Build (CMake - Advanced)</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../building/imx6.html">4.4. i.MX Linux Build</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../building/rpi3.html">4.5. Raspberry Pi Build</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../building/cmake.html">4.6. CMake</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../scripts/cmake_options.html">4.7. CMake Options</a></li> |
| </ul> |
| </li> |
| <li class="toctree-l1"><a class="reference internal" href="../demos/index.html">5. Demo and Examples</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/index.html#demo-list">5.1. Demo List</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/index.html#sss-api-examples">5.2. SSS API Examples</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/index.html#cloud-demos">5.3. Cloud Demos</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/index.html#linux-specific-demos">5.4. Linux Specific Demos</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/index.html#opc-ua-example">5.5. OPC-UA Example</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/index.html#arm-psa-example">5.6. ARM PSA Example</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/index.html#se05x-examples">5.7. SE05X Examples</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/index.html#openssl-examples">5.8. OpenSSL Examples</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/index.html#tests-for-user-crypto">5.9. Tests for User Crypto</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/index.html#nxpnfcrdlib-examples">5.10. NXPNFCRDLIB examples</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/index.html#ease-of-use-examples">5.11. Ease-of-Use examples</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/index.html#semslite-examples">5.12. Semslite examples</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/index.html#puf-examples">5.13. PUF examples</a></li> |
| </ul> |
| </li> |
| <li class="toctree-l1"><a class="reference internal" href="../edgelock2go-agent.html">6. NXP EdgeLock 2GO Agent</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../nxp_iot_agent/doc/introduction.html">6.1. Introduction</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../nxp_iot_agent/doc/introduction.html#building-and-running-the-edgelock-2go-agent">6.2. Building and running the EdgeLock 2GO agent</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../nxp_iot_agent/doc/introduction.html#datastore-keystore">6.3. Datastore / Keystore</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../nxp_iot_agent/doc/introduction.html#connection-to-the-edgelock-2go-cloud-service">6.4. Connection to the EdgeLock 2GO cloud service</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../nxp_iot_agent/doc/introduction.html#claim-codes">6.5. Claim Codes</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../nxp_iot_agent/doc/edgelock2go_agent_apis.html">6.6. API</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../nxp_iot_agent/doc/readme_usage_examples.html">6.7. Usage Examples</a></li> |
| </ul> |
| </li> |
| <li class="toctree-l1"><a class="reference internal" href="../semslite/doc/index.html">7. SEMS Lite Agent</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../semslite/doc/sems_lite_overview.html">7.1. SEMS Lite Overview (Only for SE051)</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../semslite/doc/sems_lite_package.html">7.2. Update Package</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../semslite/doc/sems_lite_usage.html">7.3. SEMS Lite Agent Usage</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../semslite/doc/sems_lite_mgmt_api.html">7.4. SEMS Lite management APIs</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../semslite/doc/sems_lite_process.html">7.5. SEMS Lite Agent Package Load Process</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../semslite/doc/sems_lite_api.html">7.6. APIs</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../semslite/doc/sems_lite_known_issue.html">7.7. SEMS Lite Known Issue</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../semslite/doc/demo_update.html">7.8. SEMS Lite DEMOs</a></li> |
| </ul> |
| </li> |
| <li class="toctree-l1"><a class="reference internal" href="../plugins/index.html">8. Plugins / Add-ins</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../sss/plugin/openssl/scripts/readme.html">8.1. Introduction on OpenSSL engine</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../sss/plugin/mbedtls/scripts/readme.html">8.2. Introduction on mbedTLS ALT Implementation</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../sss/plugin/psa/Readme.html">8.3. Platform Security Architecture</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../plugins/akm.html">8.4. Android Key master</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../sss/plugin/open62541/readme.html">8.5. Introduction on Open62541 (OPC UA stack)</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../plugins/wifiEAP/wifiEAP.html">8.6. WiFi EAP Demo with Raspberry Pi3</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../plugins/pkcs11.html">8.7. PKCS#11 Standalone Library</a></li> |
| </ul> |
| </li> |
| <li class="toctree-l1"><a class="reference internal" href="../cli-tool.html">9. CLI Tool</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../pycli/doc/introduction.html">9.1. Introduction</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../pycli/doc/block-diagram.html">9.2. Block Diagram</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../pycli/doc/pre-steps.html">9.3. Steps needed before running <code class="docutils literal notranslate"><span class="pre">ssscli</span></code> tool</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../pycli/doc/running.html">9.4. Running the <code class="docutils literal notranslate"><span class="pre">ssscli</span></code> tool - Windows</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../pycli/Provisioning/readme.html">9.5. CLI Provisioning</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../pycli/doc/readme_usage_examples.html">9.6. Usage Examples</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../pycli/doc/cli_commands_list.html">9.7. List of <code class="docutils literal notranslate"><span class="pre">ssscli</span></code> commands</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../pycli/doc/cli_data_format.html">9.8. CLI Data formats</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../pycli/doc/cli_object_policy.html">9.9. Object Policies Through ssscli</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../appendix/upload_se05x_using_pycli.html">9.10. Upload keys and certificates to SE05X using ssscli tool</a></li> |
| </ul> |
| </li> |
| <li class="toctree-l1 current"><a class="reference internal" href="../a71ch.html">10. A71CH</a><ul class="current"> |
| <li class="toctree-l2"><a class="reference internal" href="a71ch_sss.html">10.1. A71CH and SSS API</a></li> |
| <li class="toctree-l2 current"><a class="current reference internal" href="#">10.2. Miscellaneous</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="a71ch_legacy_host_api.html">10.3. A71CH Legacy API</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="a71ch_legacy_hlse_api.html">10.4. A71CH Legacy HLSE (Generic) API</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="a71ch_configure_tool.html">10.5. A71CH Legacy Configure Tool</a></li> |
| </ul> |
| </li> |
| <li class="toctree-l1"><a class="reference internal" href="../appendix.html">11. Appendix</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../appendix/glossary.html">11.1. Glossary</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../appendix/vcom.html">11.2. APDU Commands over VCOM</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../appendix/vs2019-setup.html">11.3. Visual Studio 2019 Setup</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../appendix/ide_mcux.html">11.4. Setting up MCUXPresso IDE</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../dev-platforms.html">11.5. Development Platforms</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../appendix/se_uid.html">11.6. How to get SE Platform Information and UID</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../appendix/version_info.html">11.7. Version Information</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../demos/Certificate_Chains/Readme.html">11.8. Certificate Chains</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../appendix/rjct_server.html">11.9. JRCP_v1 Server</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../appendix/platfscp.html">11.10. Using own Platform SCP03 Keys</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../appendix/apdu_write_to_buffer.html">11.11. Write APDU to buffer</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../api/api_list.html">11.12. Plug & Trust MW APIs</a></li> |
| </ul> |
| </li> |
| </ul> |
| </ul> |
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| <li class="toctree-l1"><a class="reference internal" href="../index.html">1. NXP Plug & Trust Middleware</a></li> |
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| <li class="toctree-l1 current"><a class="reference internal" href="../a71ch.html">10. A71CH</a><ul class="current"> |
| <li class="toctree-l2"><a class="reference internal" href="a71ch_sss.html">10.1. A71CH and SSS API</a></li> |
| <li class="toctree-l2 current"><a class="current reference internal" href="#">10.2. Miscellaneous</a><ul> |
| <li class="toctree-l3"><a class="reference internal" href="#demos-and-examples-supported-on-a71ch">10.2.1. Demos and examples supported on A71CH</a></li> |
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| <li class="toctree-l3"><a class="reference internal" href="#a71ch-and-scp03">10.2.3. A71CH and SCP03</a></li> |
| <li class="toctree-l3"><a class="reference internal" href="#a71ch-on-raspberry-pi">10.2.4. A71CH on Raspberry Pi</a></li> |
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| <div class="section" id="miscellaneous"> |
| <span id="se05x-a71ch-miscellaneous"></span><h1><span class="section-number">10.2. </span>Miscellaneous<a class="headerlink" href="#miscellaneous" title="Permalink to this headline">¶</a></h1> |
| <div class="section" id="demos-and-examples-supported-on-a71ch"> |
| <h2><span class="section-number">10.2.1. </span>Demos and examples supported on A71CH<a class="headerlink" href="#demos-and-examples-supported-on-a71ch" title="Permalink to this headline">¶</a></h2> |
| <p>Refer to <a class="reference internal" href="../demos/demo-list.html#demo-list"><span class="std std-ref">DEMO List</span></a> to see the list of demo applications supported on A71CH. Make the following changes when testing with A71CH.</p> |
| <ol class="arabic"> |
| <li><p>Set the Applet to A71CH and SMCOM to SCI2C in the build configuration and rebuild the middleware.</p></li> |
| <li><p>To provision A71CH for cloud application, change the <cite>subsystem</cite> to <cite>a71ch</cite> in …/simw-top/pycli/src/Provision/Provision_config.py file.</p> |
| <div class="highlight-text notranslate"><div class="highlight"><pre><span></span>SUBSYSTEM = "a71ch" |
| </pre></div> |
| </div> |
| </li> |
| <li><p>When testing cloud application on linux platform, set the OPENSSL_CONF to A71CH specific openssl config files - openssl_sss_a71ch.cnf (for openssl 1.0) / openssl11_sss_a71ch.cnf (for openssl 1.1).</p></li> |
| </ol> |
| </div> |
| <div class="section" id="openssl-engine"> |
| <h2><span class="section-number">10.2.2. </span>OpenSSL Engine<a class="headerlink" href="#openssl-engine" title="Permalink to this headline">¶</a></h2> |
| <p>The Plug&Trust MW comes with two OpenSSL Engine implementations, both implementations support OpenSSL 1.1.1:</p> |
| <ul class="simple"> |
| <li><p>SSS API based (A71CH SSS OpenSSL Engine)</p></li> |
| <li><p>A71CH Legacy API based (A71CH Legacy OpenSSL Engine)</p></li> |
| </ul> |
| <p>The reference key format and the tools supporting the reference keys are <strong>different and incompatible</strong>.</p> |
| <p>The implementation using the SSS API is documented in <a class="reference internal" href="../sss/plugin/openssl/scripts/readme.html#intro-openssl-engine"><span class="std std-ref">Introduction on OpenSSL engine</span></a> and resides in |
| <code class="docutils literal notranslate"><span class="pre">.../sss/plugin/openssl</span></code>. The functionality of the engine is restricted to EC NIST P-256 keys.</p> |
| <p>The implementation using the A71CH Legacy API resides in <code class="docutils literal notranslate"><span class="pre">.../hostlib/hostlib/embSeEngine</span></code>.</p> |
| <p>The reference key format used by the SSS OpenSSL Engine refers to the stored EC key by SSS Object |
| Identifier. |
| It relies upon the <code class="docutils literal notranslate"><span class="pre">SSS</span> <span class="pre">Object</span> <span class="pre">Identifier</span> <span class="pre">to</span> <span class="pre">A71CH</span> <span class="pre">Internal</span> <span class="pre">storage</span> <span class="pre">mapping</span> <span class="pre">table</span></code> (<a class="reference internal" href="a71ch_sss.html#se05x-a71ch-sss"><span class="std std-ref">A71CH and SSS API</span></a>) |
| to locate the stored EC key in the attached A71CH.</p> |
| <p>The reference key format used by the A71CH Legacy OpenSSL Engine refers to the stored EC key by |
| key class and key index. Both key class and index are specific to the A71CH secure element. |
| The following provides an example of reference key format used by the A71CH Legacy OpenSSL Engine. |
| The value reserved for the private key has been used to contain:</p> |
| <ul class="simple"> |
| <li><p>a pattern of <code class="docutils literal notranslate"><span class="pre">0x10..00</span></code> to fill up the datastructure MSB side to the desired key length</p></li> |
| <li><p>a 64 bit magic number (always <code class="docutils literal notranslate"><span class="pre">0xA5A6B5B6A5A6B5B6</span></code>)</p></li> |
| <li><p>a byte (0xkk) to contain the key class (<code class="docutils literal notranslate"><span class="pre">0x10</span></code> for key pair and <code class="docutils literal notranslate"><span class="pre">0x20</span></code> for public key)</p></li> |
| <li><p>a byte (0xii) to contain the key index (<code class="docutils literal notranslate"><span class="pre">0x00</span> <span class="pre">to</span> <span class="pre">0x03</span></code> for key pair and <code class="docutils literal notranslate"><span class="pre">0x00</span> <span class="pre">to</span> <span class="pre">0x02</span></code> for public key)</p></li> |
| </ul> |
| <div class="highlight-text notranslate"><div class="highlight"><pre><span></span>Private-Key: (256 bit) |
| priv: |
| 10:00:00:00:00:00:00:00:00:00:00:00:00:00:00: |
| 00:00:00:00:00:00:00:A5:A6:B5:B6:A5:A6:B5:B6: |
| kk:ii |
| pub: |
| 04:1C:93:08:8B:26:27:BA:EA:03:D1:BE:DB:1B:DF: |
| 8E:CC:87:EF:95:D2:9D:FC:FC:3A:82:6F:C6:E1:70: |
| A0:50:D4:B7:1F:F2:A3:EC:F8:92:17:41:60:48:74: |
| F2:DB:3D:B4:BC:2B:F8:FA:E8:54:72:F6:72:74:8C: |
| 9E:5F:D3:D6:D4 |
| ASN1 OID: prime256v1 |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="a71ch-and-scp03"> |
| <h2><span class="section-number">10.2.3. </span>A71CH and SCP03<a class="headerlink" href="#a71ch-and-scp03" title="Permalink to this headline">¶</a></h2> |
| <p>Enabling SCP03 channel encryption on the A71CH is a two step process:</p> |
| <ul class="simple"> |
| <li><p>[Phase-0] First the SCP03 keys must be set on the A71CH. The SCP03 keys can only be set once!</p></li> |
| <li><p>[Phase-1] Once the SCP03 keys are set on the A71CH an SCP03 channel can be established between Host and A71CH. In case an SCP03 channel |
| has been established successfully, the use of SCP03 becomes mandatory for all subsequent communication between Host and A71CH.</p></li> |
| </ul> |
| <p>In the SSS API based example applications, two utility functions are used to support SCP03 channel encryption:</p> |
| <ul class="simple"> |
| <li><p><code class="docutils literal notranslate"><span class="pre">ex_a71ch_SetSeScp03Keys</span></code> is used to set the keys as required for [Phase-0]</p></li> |
| <li><p><code class="docutils literal notranslate"><span class="pre">SCP_Authenticate</span></code> is used to establish the SCP03 channel [Phase-1]</p></li> |
| </ul> |
| <p>The example code (<code class="docutils literal notranslate"><span class="pre">sss/ex/inc/ex_sss_main_inc.h</span></code>) always combines these two steps and depends on the ‘Debug Reset’ command for this. |
| In a product deployment the two phases must be distinct. |
| [Phase-0] is only executed once. Ensure that the SCP03 keys are securely and persistently stored on the host.</p> |
| <p>To enable SCP03 in the SSS API examples one must set the following Cmake options:</p> |
| <div class="highlight-text notranslate"><div class="highlight"><pre><span></span>-DA71CH_AUTH=SCP03 |
| -DSCP=SCP03_HostCrypto |
| </pre></div> |
| </div> |
| <p>Please refer to <a class="reference internal" href="../scripts/cmake_options.html#se05x-cmake-options"><span class="std std-ref">CMake Options</span></a> for more details and an overview of all available Cmake options.</p> |
| <div class="admonition note"> |
| <p class="admonition-title">Note</p> |
| <p>The Plug&Trust MW also contains example code illustrating the setting up of an SCP03 channel between Host and Secure Element |
| for applications based upon the A71CH API: please refer to <code class="docutils literal notranslate"><span class="pre">hostlib/a71ch/ex/mainA71CH.c</span></code></p> |
| </div> |
| </div> |
| <div class="section" id="a71ch-on-raspberry-pi"> |
| <h2><span class="section-number">10.2.4. </span>A71CH on Raspberry Pi<a class="headerlink" href="#a71ch-on-raspberry-pi" title="Permalink to this headline">¶</a></h2> |
| <p>When building the stack for A71CH on Raspberry Pi, set the following cmake options</p> |
| <div class="highlight-text notranslate"><div class="highlight"><pre><span></span>cmake -DApplet=A71CH -DSMCOM=SCI2C . |
| </pre></div> |
| </div> |
| <p>The default i2c master of Raspberry Pi doesn’t support the SMBUS ‘block read’ feature |
| required for the sci2c protocol. |
| As a workaround a software implementation of an i2c master must be used.</p> |
| <p>Add the following line to <code class="docutils literal notranslate"><span class="pre">/boot/config.txt</span></code> on the Raspberry Pi SD card and reboot:</p> |
| <div class="highlight-text notranslate"><div class="highlight"><pre><span></span>dtoverlay=i2c-gpio,bus=4,i2c_gpio_delay_us=1,_i2c_gpio_sda=23,i2c_gpio_scl=24 |
| </pre></div> |
| </div> |
| <p>This will create a <code class="docutils literal notranslate"><span class="pre">/dev/i2c-4</span></code> i2c port on Raspberry Pi.</p> |
| <p>Modify <code class="docutils literal notranslate"><span class="pre">.../simw-top/hostlib/hostLib/platform/linux/i2c_a7.c</span></code> for correct i2c port</p> |
| <div class="highlight-text notranslate"><div class="highlight"><pre><span></span>static char* default_axSmDevice_name = "/dev/i2c-4"; |
| </pre></div> |
| </div> |
| <p>The following table illustrates the connections to make between the Raspberry Pi Header and the A71CH.</p> |
| <table class="docutils align-default" id="id1"> |
| <caption><span class="caption-text">A71CH pin connections</span><a class="headerlink" href="#id1" title="Permalink to this table">¶</a></caption> |
| <colgroup> |
| <col style="width: 65%" /> |
| <col style="width: 35%" /> |
| </colgroup> |
| <thead> |
| <tr class="row-odd"><th class="head"><p>Raspberry Pi Header</p></th> |
| <th class="head"><p>A71CH</p></th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="row-even"><td><p>Pin# 1</p></td> |
| <td><p>Power</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Pin# 6</p></td> |
| <td><p>Ground</p></td> |
| </tr> |
| <tr class="row-even"><td><p>Pin# 16</p></td> |
| <td><p>I2C Data</p></td> |
| </tr> |
| <tr class="row-odd"><td><p>Pin# 18</p></td> |
| <td><p>I2C Clock</p></td> |
| </tr> |
| </tbody> |
| </table> |
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