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class="shortdesc"></p></div></div></div></li><li role="treeitem"><div data-tocid="spienc-generate-production-firmware-d3752e1597" class="topicref" data-id="spienc-generate-production-firmware" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/secure/spienc-generate-production-firmware-V2.html" id="spienc-generate-production-firmware-d3752e1597-link">生成量产固件</a><div class="wh-tooltip"><p class="shortdesc"></p></div></div></div></li><li role="treeitem"><div data-tocid="spinenc-efuse-and-firmware-combined-d3752e1613" class="topicref" data-id="spinenc-efuse-and-firmware-combined" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/secure/spinenc-efuse-and-firmware-combined-V2.html" id="spinenc-efuse-and-firmware-combined-d3752e1613-link">eFuse 与固件合并烧录</a><div class="wh-tooltip"><p class="shortdesc"></p></div></div></div></li></ul></li></ul></li></ul></li><li role="treeitem"><div data-tocid="mkfs_partition_image-d3752e1636" class="topicref" data-id="mkfs_partition_image" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/app/mkfs_partition_image.html" id="mkfs_partition_image-d3752e1636-link">制作分区镜像</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e1650" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e1650-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/burnsys/burner_offline_lite.html" id="id-d3752e1650-link">离线烧录</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="usb_display-d3752e1706" class="topicref" data-id="usb_display" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action usb_display-d3752e1706-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/app/usb-display.html" id="usb_display-d3752e1706-link">USB Display 方案</a></div></div></li><li role="treeitem"><div data-tocid="backtrace-d3752e1833" class="topicref" data-id="backtrace" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/app/backtrace.html" id="backtrace-d3752e1833-link">Backtrace 栈回溯</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e1848" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e1848-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/peripheral/peripheral-intro.html" id="id-d3752e1848-link">外设移植</a><div class="wh-tooltip"><p class="shortdesc"><span class="ph">CTP、U 盘、SD 卡、有线和无线网络</span>等外设的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e2022" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e2022-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/chapter-bringup.html" id="id-d3752e2022-link">BringUp</a><div class="wh-tooltip"><p class="shortdesc">主要描述板卡的各项配置，使 SDK 的环境和板卡匹配，并确保 SDK 编译后的固件能够在板子上正常运行。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d3752e2418" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d3752e2418-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html" id="id-d3752e2418-link">高级应用</a><div class="wh-tooltip"><p class="shortdesc">系统、存储、多媒体、接口、安全等模块的详细配置和设计说明。</p></div></div></div></li></ul></div>
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<span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://aicdocco/taskstopics/sdk/secure/spienc_function_v2.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">方案 V2</h1>
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<div class="date inPage">16 May 2025</div><div style="color: gray;">
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Read time: 2 minute(s)
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|
||
<p class="- topic/p p" data-ofbid="d187954e31__20250519091526">本节介绍了 SPI Flash 防抄板方案 V2 的详细配置说明，以 D12x 开发板为例。</p>
|
||
<p class="- topic/p p" id="id__p_ppw_qsd_jdc" data-ofbid="id__p_ppw_qsd_jdc">本方案通过使用 D12x 的 SPIENC 总线加密功能来实现防抄板，结合实际使用的需求，提供对应的软件方案。</p>
|
||
<section class="- topic/section section" id="id__section_kw2_gqx_52c" data-ofbid="id__section_kw2_gqx_52c"><h2 class="- topic/title title sectiontitle">SPIENC 总线加密</h2>
|
||
|
||
<div class="- topic/div div" id="id__div_i3t_jvp_pdc">
|
||
<div class="- topic/div div" id="id__div_v32_nsd_jdc">
|
||
<p class="- topic/p p" data-ofbid="d187954e46__20250519091526">SPIENC 总线加密功能是一个芯片硬件支持的安全功能。芯片使能了 SPIENC 后，内部的 SPIENC 模块对 SPI
|
||
总线上传输的数据进行实时的加密或解密，即对写出去的数据进行 AES 加密，读回来的数据进行 AES 解密， 使得保存在 Flash
|
||
上的数据总是密文。</p>
|
||
<p class="- topic/p p" data-ofbid="d187954e49__20250519091526">SPIENC 进行加解密时，使用芯片 eFuse 中特定密钥区域中的密钥对数据进行加密和解密，该密钥区域可以做到烧录后 CPU 不可读写，在芯片内部也仅有
|
||
SPIENC 模块能够访问，因此可以做到硬件安全保密。</p>
|
||
<div class="- topic/p p" data-ofbid="d187954e52__20250519091526">启用 SPIENC 需要：<ol class="- topic/ol ol simple" id="id__ul_bn4_dp4_fdc" data-ofbid="id__ul_bn4_dp4_fdc">
|
||
<li class="- topic/li li" data-ofbid="d187954e56__20250519091526">
|
||
<p class="- topic/p p" data-ofbid="d187954e58__20250519091526"> 在芯片中烧录特有的的 AES 密钥，并且将相关密钥区域设置为仅 SPIENC 可访问。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d187954e62__20250519091526">
|
||
<p class="- topic/p p" data-ofbid="d187954e64__20250519091526"> 提供对应的加密固件。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d187954e68__20250519091526">
|
||
<p class="- topic/p p" data-ofbid="d187954e70__20250519091526">对 AES 密钥进行妥善管理，防止泄露。</p>
|
||
</li>
|
||
</ol></div>
|
||
<p class="- topic/p p" data-ofbid="d187954e75__20250519091526">此时芯片和对应的固件就被绑定在一起，提供出去的固件，只能运行在烧录了对应加密密钥的芯片上； 烧录了密钥的芯片，也只能运行使用对应密钥加密后的固件。</p>
|
||
</div>
|
||
</div>
|
||
</section>
|
||
<section class="- topic/section section" id="id__section_m42_bfx_52c" data-ofbid="id__section_m42_bfx_52c"><h2 class="- topic/title title sectiontitle">SPI ENC 功能对应的 eFuse 烧录信息</h2>
|
||
|
||
<div class="- topic/p p" data-ofbid="d187954e86__20250519091526">D12x 使能 SPIENC 功能，需要烧录的 eFuse 信息如下：<ul class="- topic/ul ul" id="id__ol_ddj_ffx_52c" data-ofbid="id__ol_ddj_ffx_52c">
|
||
<li class="- topic/li li" data-ofbid="d187954e90__20250519091526">
|
||
<p class="- topic/p p" data-ofbid="d187954e92__20250519091526">SECURE 区域中的 SPI_ENC_EN 位。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d187954e96__20250519091526">
|
||
<p class="- topic/p p" data-ofbid="d187954e98__20250519091526">SPI_ENC KEY 区域中的密钥内容。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d187954e102__20250519091526">
|
||
<p class="- topic/p p" data-ofbid="d187954e104__20250519091526">DIS RD/DIS WR 区域中，关于 SPI_ENC KEY 的读写禁止位。</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d187954e108__20250519091526">
|
||
<p class="- topic/p p" data-ofbid="d187954e110__20250519091526">SECURE 区域中的 JTAG_LOCK 位（可选，关闭 JTAG 更安全）。</p>
|
||
</li>
|
||
</ul></div>
|
||
<div class="- topic/note note note note_note" id="id__note_fqk_3fx_52c" data-ofbid="id__note_fqk_3fx_52c"><span class="note__title">注：</span>
|
||
<p class="- topic/p p" data-ofbid="d187954e117__20250519091526">相关信息可参考芯片用户手册 > 安全 > SID 章节。</p>
|
||
</div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="id__id19" data-ofbid="id__id19" data-cols="8"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 1</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">eFuse 空间划分</span></caption><colgroup><col style="width:16.35027556644213%"/><col style="width:6.613594611145131%"/><col style="width:7.348438456827923%"/><col style="width:8.87936313533374%"/><col style="width:6.123698714023269%"/><col style="width:6.919779546846295%"/><col style="width:8.695652173913041%"/><col style="width:39.069197795468455%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__id19__entry__1">用途</th>
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__id19__entry__2">位数</th>
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__id19__entry__3">地址</th>
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__id19__entry__4">禁止位</th>
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__id19__entry__5">禁写</th>
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__id19__entry__6">禁读</th>
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__id19__entry__7">归属</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="id__id19__entry__8">备注</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__1">DIS</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__2">32</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__3">0~3</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__4">0</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__5">-</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__6">-</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__7">CSTM</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__id19__entry__8">每位对应 1 个 32bits 空间 <ul class="- topic/ul ul" id="id__ul_mfm_vgx_52c" data-ofbid="id__ul_mfm_vgx_52c">
|
||
<li class="- topic/li li" data-ofbid="d187954e206__20250519091526">15:00 eFuse 读禁止配置</li>
|
||
<li class="- topic/li li" data-ofbid="d187954e209__20250519091526">31:16 eFuse 写禁止配置</li>
|
||
</ul></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__1">BROM_SECURE</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__2">32</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__3">4~7</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__4">1</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__5">V</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__6">-</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__7">CSTM</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__id19__entry__8">BROM 参数配置区域</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__1">CALI</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__2">64</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__3">8~F</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__4">2~3</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__5">V</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__6">-</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__7">AIC</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__id19__entry__8">模拟校准使用</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__1">CHIP ID</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__2">128</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__3">10~1F</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__4">4~7</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__5">V</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__6">-</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__7">AIC</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__id19__entry__8">芯片编号（子编号用到 Reserved 区域）</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__1">SPI_ENC KEY</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__2">128</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__3">20~2F</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__4">8~11</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__5">V</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__6">V</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id19__entry__7">CSTM</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__id19__entry__8">安全，连接到 SPI_ENC，对称密钥</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__id19__entry__1">Reserved</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__id19__entry__2">128</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__id19__entry__3">30~3F</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__id19__entry__4">12~15</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__id19__entry__5">-</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__id19__entry__6">-</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__id19__entry__7">CSTM</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="id__id19__entry__8">OEM 可自定义使用</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="id__id20" data-ofbid="id__id20" data-cols="3"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 2</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">SECURE 区域定义</span></caption><colgroup><col style="width:15.408320493066254%"/><col style="width:15.562403697996919%"/><col style="width:69.02927580893683%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__id20__entry__1">比特位</th>
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__id20__entry__2">名称</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="id__id20__entry__3">描述</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id20__entry__1">31:29</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id20__entry__2"><em class="+ topic/ph hi-d/i ph i">-</em></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__id20__entry__3"><em class="+ topic/ph hi-d/i ph i">-</em></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id20__entry__1">28</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id20__entry__2">SPI_ENC_EN</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__id20__entry__3">BROM 读取使用，使能 SPI 总线数据加密功能</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id20__entry__1">27:25</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__id20__entry__2"><em class="+ topic/ph hi-d/i ph i">-</em></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__id20__entry__3"><em class="+ topic/ph hi-d/i ph i">-</em></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__id20__entry__1">24</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__id20__entry__2">JTAG_LOCK</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="id__id20__entry__3">逻辑组合后连接到 CPU 屏蔽 TDO，关闭 JTAG 调试功能，在安全方案中烧录为 1</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
</section>
|
||
|
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</div>
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</article></main></div>
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<div class=" wh_child_links d-print-none "><nav aria-label="Child Links" role="navigation" class="- topic/related-links related-links"><ul class="ullinks"><li class="- topic/link link ulchildlink"><strong><a href="../../../topics/sdk/secure/spienc-generate-efuse-V2.html">烧录 eFuse</a></strong><div class="- topic/desc desc"></div></li><li class="- topic/link link ulchildlink"><strong><a href="../../../topics/sdk/secure/spienc-generate-production-firmware-V2.html">生成量产固件</a></strong><div class="- topic/desc desc"></div></li><li class="- topic/link link ulchildlink"><strong><a href="../../../topics/sdk/secure/spinenc-efuse-and-firmware-combined-V2.html">eFuse 与固件合并烧录</a></strong><div class="- topic/desc desc"></div></li></ul></nav></div>
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<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#id__section_kw2_gqx_52c" data-tocid="id__section_kw2_gqx_52c">SPIENC 总线加密</a></div></li><li class="section-item"><div class="section-title"><a href="#id__section_m42_bfx_52c" data-tocid="id__section_m42_bfx_52c">SPI ENC 功能对应的 eFuse 烧录信息</a></div></li></ul></div>
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