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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic topic" role="article" aria-labelledby="ariaid-title1">
<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/firmware_encryption_with_spienc.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">固件加密-SPIENC</h1>
<div class="date inPage">9 Apr 2025</div><div style="color: gray;">
Read time: 4 minute(s)
</div>
<div class="- topic/body body">
<p class="- topic/p p" data-ofbid="d99640e28__20250409171041">本节以 D13x 系列芯片为例，演示固件加密的具体流程。关于 eFuse 烧录区域，可参考对应用户手册。</p>
<p class="- topic/p p" data-ofbid="d99640e31__20250409171041">完成本节所有操作后，编译镜像直接使用 AiBurn 工具进行烧录即可。</p>
<section class="- topic/section section" data-ofbid="d99640e34__20250409171041"><h2 class="- topic/title title sectiontitle">配置 BROM 中的 SPI_ENC_EN 比特位</h2><p class="- topic/p p" data-ofbid="d99640e37__20250409171041">使能 BROM 中 SPI_ENC
功能，在开发板平台命令行执行下列命令，烧录下列 eFuse 信息中的 SPI_ENC_EN
比特位：</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_b55_14t_vcc" data-ofbid="id__pre_b55_14t_vcc">efuse writehex <span class="hl-number">0x38</span> <span class="hl-number">00000800</span></pre>
上述命令会在地址 0x38 处设置 SPI_ENC_EN 比特位为 1。<div class="table-container"><table class="- topic/table table frame-all" data-ofbid="d99640e42__20250409171041" data-cols="8"><caption></caption><colgroup><col style="width:13.885647607934654%"/><col style="width:11.785297549591599%"/><col style="width:11.90198366394399%"/><col style="width:12.135355892648775%"/><col style="width:11.668611435239207%"/><col style="width:11.668611435239207%"/><col style="width:11.90198366394399%"/><col style="width:15.052508751458577%"/></colgroup><thead class="- topic/thead thead">
<tr class="- topic/row">
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__entry__1"><p class="- topic/p p" data-ofbid="d99640e68__20250409171041">用途</p></th>
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__entry__2"><p class="- topic/p p" data-ofbid="d99640e72__20250409171041">位数</p></th>
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__entry__3"><p class="- topic/p p" data-ofbid="d99640e76__20250409171041">地址</p></th>
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__entry__4"><p class="- topic/p p" data-ofbid="d99640e80__20250409171041">禁止位</p></th>
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__entry__5"><p class="- topic/p p" data-ofbid="d99640e84__20250409171041">禁写</p></th>
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__entry__6"><p class="- topic/p p" data-ofbid="d99640e89__20250409171041">禁读</p></th>
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__entry__7"><p class="- topic/p p" data-ofbid="d99640e93__20250409171041">归属</p></th>
<th class="- topic/entry entry colsep-0 rowsep-1" id="id__entry__8"><p class="- topic/p p" data-ofbid="d99640e97__20250409171041">备注</p></th>
</tr>
</thead><tbody class="- topic/tbody tbody">
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__entry__1"><p class="- topic/p p" data-ofbid="d99640e107__20250409171041">SECURE</p></td>
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__entry__2"><p class="- topic/p p" data-ofbid="d99640e111__20250409171041">64</p></td>
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__entry__3"><p class="- topic/p p" data-ofbid="d99640e115__20250409171041">38~3F</p></td>
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__entry__4"><p class="- topic/p p" data-ofbid="d99640e119__20250409171041">14~15</p></td>
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__entry__5"><p class="- topic/p p" data-ofbid="d99640e123__20250409171041">V</p></td>
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__entry__6"><p class="- topic/p p" data-ofbid="d99640e128__20250409171041">-</p></td>
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__entry__7"><p class="- topic/p p" data-ofbid="d99640e132__20250409171041">CSTM</p></td>
<td class="- topic/entry entry colsep-0 rowsep-0" headers="id__entry__8"><p class="- topic/p p" data-ofbid="d99640e136__20250409171041">安全和调试功能开关</p></td>
</tr>
</tbody></table></div></section>
<section class="- topic/section section" id="id__secure" data-ofbid="id__secure"><h2 class="- topic/title title sectiontitle">SECURE 区域定义</h2>
<div class="table-container"><table class="- topic/table table frame-all" data-ofbid="d99640e148__20250409171041" data-cols="3"><caption></caption><colgroup><col style="width:16.33986928104575%"/><col style="width:34.64052287581699%"/><col style="width:49.01960784313725%"/></colgroup><thead class="- topic/thead thead">
<tr class="- topic/row">
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__secure__entry__1"><p class="- topic/p p" data-ofbid="d99640e163__20250409171041">比特位</p></th>
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__secure__entry__2"><p class="- topic/p p" data-ofbid="d99640e167__20250409171041">名称</p></th>
<th class="- topic/entry entry colsep-0 rowsep-1" id="id__secure__entry__3"><p class="- topic/p p" data-ofbid="d99640e171__20250409171041">描述</p></th>
</tr>
</thead><tbody class="- topic/tbody tbody">
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__1"><p class="- topic/p p" data-ofbid="d99640e181__20250409171041">31:25</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__2"><p class="- topic/p p" data-ofbid="d99640e185__20250409171041"><em class="+ topic/ph hi-d/i ph i">-</em>
</p></td>
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__secure__entry__3"><p class="- topic/p p" data-ofbid="d99640e191__20250409171041"><em class="+ topic/ph hi-d/i ph i">-</em>
</p></td>
</tr>
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__1"><p class="- topic/p p" data-ofbid="d99640e200__20250409171041">24</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__2"><p class="- topic/p p" data-ofbid="d99640e204__20250409171041">PBP_ENC_EN</p></td>
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__secure__entry__3"><p class="- topic/p p" data-ofbid="d99640e208__20250409171041">BROM 读取使用，使能 PBP 程序加密功能</p></td>
</tr>
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__1"><p class="- topic/p p" data-ofbid="d99640e215__20250409171041">23:20</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__2"><p class="- topic/p p" data-ofbid="d99640e219__20250409171041"><em class="+ topic/ph hi-d/i ph i">-</em>
</p></td>
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__secure__entry__3"><p class="- topic/p p" data-ofbid="d99640e225__20250409171041"><em class="+ topic/ph hi-d/i ph i">-</em>
</p></td>
</tr>
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__1"><p class="- topic/p p" data-ofbid="d99640e234__20250409171041">19</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__2"><p class="- topic/p p" data-ofbid="d99640e238__20250409171041">SPI_ENC_EN</p></td>
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__secure__entry__3"><p class="- topic/p p" data-ofbid="d99640e242__20250409171041">BROM 读取使用，使能 SPI 总线数据加密功能</p></td>
</tr>
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__1"><p class="- topic/p p" data-ofbid="d99640e249__20250409171041">18</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__2"><p class="- topic/p p" data-ofbid="d99640e253__20250409171041"><em class="+ topic/ph hi-d/i ph i">-</em>
</p></td>
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__secure__entry__3"><p class="- topic/p p" data-ofbid="d99640e259__20250409171041"><em class="+ topic/ph hi-d/i ph i">-</em>
</p></td>
</tr>
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__1"><p class="- topic/p p" data-ofbid="d99640e269__20250409171041">17</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__2"><p class="- topic/p p" data-ofbid="d99640e273__20250409171041">ENCRYPT_BOOT_EN</p></td>
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__secure__entry__3"><p class="- topic/p p" data-ofbid="d99640e277__20250409171041">BROM 读取使用，使能固件加密启动功能</p></td>
</tr>
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__1"><p class="- topic/p p" data-ofbid="d99640e284__20250409171041">16</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__2"><p class="- topic/p p" data-ofbid="d99640e288__20250409171041">SECURE_BOOT_EN</p></td>
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__secure__entry__3"><p class="- topic/p p" data-ofbid="d99640e292__20250409171041">BROM 读取使用，使能安全启动功能</p></td>
</tr>
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__1"><p class="- topic/p p" data-ofbid="d99640e299__20250409171041">15:1</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__secure__entry__2"><p class="- topic/p p" data-ofbid="d99640e303__20250409171041"><em class="+ topic/ph hi-d/i ph i">-</em>
</p></td>
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__secure__entry__3"><p class="- topic/p p" data-ofbid="d99640e309__20250409171041"><em class="+ topic/ph hi-d/i ph i">-</em>
</p></td>
</tr>
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__secure__entry__1"><p class="- topic/p p" data-ofbid="d99640e318__20250409171041">0</p></td>
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__secure__entry__2"><p class="- topic/p p" data-ofbid="d99640e322__20250409171041">JTAG_LOCK</p></td>
<td class="- topic/entry entry colsep-0 rowsep-0" headers="id__secure__entry__3"><p class="- topic/p p" data-ofbid="d99640e326__20250409171041">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</p></td>
</tr>
</tbody></table></div>
<p class="- topic/p p" data-ofbid="d99640e333__20250409171041">具体 eFuse 区域的地址，请参考芯片的数据手册。</p>
</section>
<section class="- topic/section section" id="id__bootloader" data-ofbid="id__bootloader"><h2 class="- topic/title title sectiontitle">在
BootLoader
中启用 SPIENC
驱动</h2>
<ol class="- topic/ol ol" id="id__ol_kgv_44t_vcc" data-ofbid="id__ol_kgv_44t_vcc">
<li class="- topic/li li" data-ofbid="d99640e344__20250409171041">在 <span class="- topic/ph ph">Luban-Lite</span> 根目录下执行 <code class="+ topic/ph pr-d/codeph ph codeph">bm</code>，进入 BootLoader 的 menuconfig
功能配置界面。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_sbs_r4t_vcc" data-ofbid="id__codeblock_sbs_r4t_vcc">bm</pre></li>
<li class="- topic/li li" data-ofbid="d99640e355__20250409171041">进入 menuconfig 功能配置界面，按如下选择启用 QSPI0 的加密功能，配置只打开了 QSPI0 的加密使能作为示例：
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_mqg_54t_vcc" data-ofbid="id__pre_mqg_54t_vcc">Board options ---&gt;
[*] Using Spienc
[*] Enc qspi0</pre>
</li>
<li class="- topic/li li" data-ofbid="d99640e361__20250409171041">如果需要，进入 menuconfig 功能配置界面设置 Tweak 值，否则可略过。<p class="- topic/p p" data-ofbid="d99640e363__20250409171041">SPIENC 中的 Tweak 可以影响 COUNTER
的生成，进而改变加密的结果。 如果需要让在不同的产品对相同的数据有不同的加密结果，则可以进入 menuconfig 的功能配置界面调整该值。
</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_xlw_v4t_vcc" data-ofbid="id__pre_xlw_v4t_vcc">Board options ---&gt;
[*] Using spienc ---&gt;
(<span class="hl-number">0</span>) set qspi0 tweak</pre><p class="- topic/p p" data-ofbid="d99640e367__20250409171041">完成以上配置之后， BootLoader SPI_ENC
驱动将被使能， SPI NOR / SPI NAND 驱动在数据访问时将自动进行数据加解密。</p></li>
</ol>
</section>
<section class="- topic/section section" id="id__section_ydv_fk4_fdc" data-ofbid="id__section_ydv_fk4_fdc"><h2 class="- topic/title title sectiontitle">在 RTOS 中启用
SPIENC
驱动
</h2>
<div class="- topic/p p" data-ofbid="d99640e378__20250409171041">
<ol class="- topic/ol ol" id="id__ol_sg2_hk4_fdc" data-ofbid="id__ol_sg2_hk4_fdc">
<li class="- topic/li li" data-ofbid="d99640e382__20250409171041">在 <span class="- topic/ph ph">Luban-Lite</span> 根目录下执行以下命令，进入 RTOS 的 menuconfig
功能配置界面：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_wg2_hk4_fdc" data-ofbid="id__codeblock_wg2_hk4_fdc">scons --menuconfig</pre></li>
<li class="- topic/li li" data-ofbid="d99640e390__20250409171041">在功能配置界面，按如下选择启用 QSPI0 的加密功能，配置只打开了 QSPI0 的加密使能作为示例：
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_xg2_hk4_fdc" data-ofbid="id__codeblock_xg2_hk4_fdc">Board options ---&gt;
[*] Using Spienc
[*] Enc qspi0
</pre>
</li>
<li class="- topic/li li" data-ofbid="d99640e396__20250409171041">如果需要，进入 menuconfig 功能配置界面设置 Tweak 值，否则可略过。<p class="- topic/p p" data-ofbid="d99640e398__20250409171041">SPIENC 中的 Tweak 可以影响 COUNTER
的生成，进而改变加密的结果。 如果需要让在不同的产品对相同的数据有不同的加密结果，则可以进入 menuconfig
的功能配置界面调整该值。</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_yg2_hk4_fdc" data-ofbid="id__codeblock_yg2_hk4_fdc">Board options ---&gt;
[*] Using spienc ---&gt;
(<span class="hl-number">0</span>) set qspi0 tweak
</pre><p class="- topic/p p" data-ofbid="d99640e402__20250409171041">完成以上配置之后， RTOS SPI_ENC 驱动将被使能， SPI NOR/ SPI NAND
驱动在数据访问时将自动进行数据加解密。</p></li>
</ol>
</div>
</section>
<section class="- topic/section section" id="id__section_f14_vj4_fdc" data-ofbid="id__section_f14_vj4_fdc"><h2 class="- topic/title title sectiontitle">配置密钥及所需的
KEY 和 COUNTER 值</h2>
<div class="- topic/p p" data-ofbid="d99640e413__20250409171041">SPI_ENC 模块使用 AES-128-CTR 算法对 SPI 总线数据进行加解密，该算法在计算时的密钥有两部分：<ul class="- topic/ul ul simple" id="id__ul_w5w_vj4_fdc" data-ofbid="id__ul_w5w_vj4_fdc">
<li class="- topic/li li" data-ofbid="d99640e417__20250409171041">
<p class="- topic/p p" data-ofbid="d99640e419__20250409171041">128 bit AES 密钥(KEY)</p>
</li>
<li class="- topic/li li" data-ofbid="d99640e423__20250409171041">
<p class="- topic/p p" data-ofbid="d99640e425__20250409171041">128 bit 数据块的 COUNTER 值</p>
</li>
</ul></div>
<div class="- topic/p p" data-ofbid="d99640e430__20250409171041">其中 KEY 直接使用 eFuse 中的 <code class="+ topic/ph pr-d/codeph ph codeph">SPI_ENC_KEY</code> ，COUNTER 值则由几部分共同产生：<ul class="- topic/ul ul simple" id="id__ul_kdh_wj4_fdc" data-ofbid="id__ul_kdh_wj4_fdc">
<li class="- topic/li li" data-ofbid="d99640e437__20250409171041">
<p class="- topic/p p" data-ofbid="d99640e439__20250409171041">eFuse 中的 <code class="+ topic/ph pr-d/codeph ph codeph">SPI_ENC_NONCE</code></p>
</li>
<li class="- topic/li li" data-ofbid="d99640e445__20250409171041">
<p class="- topic/p p" data-ofbid="d99640e447__20250409171041">memuconfig 中配置的 <code class="+ topic/ph pr-d/codeph ph codeph">tweak</code></p>
</li>
<li class="- topic/li li" data-ofbid="d99640e453__20250409171041">
<p class="- topic/p p" data-ofbid="d99640e455__20250409171041">访问数据所在的地址 <code class="+ topic/ph pr-d/codeph ph codeph">address</code></p>
</li>
</ul></div>
<figure class="- topic/fig fig fignone" id="id__id2" data-ofbid="id__id2">
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="id__image_inr_wj4_fdc" src="../../../images/secure/spienc_counter_value1.png" alt="spienc_counter_value1"/></div><br/>
<figcaption data-caption-side="bottom" class="- topic/title title figcapcenter"><span class="figtitleprefix fig--title-label">图<span class="fig--title-label-number"> 1</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">COUNTER 值的生成</span></figcaption></figure>
<div class="- topic/p p" data-ofbid="d99640e474__20250409171041">因此在使用 SPI_ENC 时，需要设置以下的 eFuse 信息：<div class="table-container"><table class="- topic/table table frame-all" id="id__table_unx_wj4_fdc" data-ofbid="id__table_unx_wj4_fdc" 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"></span></caption><colgroup><col style="width:13.924050632911392%"/><col style="width:10.654008438818565%"/><col style="width:11.181434599156118%"/><col style="width:11.181434599156118%"/><col style="width:10.548523206751053%"/><col style="width:10.548523206751053%"/><col style="width:10.864978902953586%"/><col style="width:21.097046413502106%"/></colgroup><thead class="- topic/thead thead">
<tr class="- topic/row">
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_unx_wj4_fdc__entry__1"><p class="- topic/p p" data-ofbid="d99640e504__20250409171041">用途</p></th>
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_unx_wj4_fdc__entry__2"><p class="- topic/p p" data-ofbid="d99640e508__20250409171041">位数</p></th>
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_unx_wj4_fdc__entry__3"><p class="- topic/p p" data-ofbid="d99640e512__20250409171041">地址</p></th>
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_unx_wj4_fdc__entry__4"><p class="- topic/p p" data-ofbid="d99640e516__20250409171041">禁止位</p></th>
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_unx_wj4_fdc__entry__5"><p class="- topic/p p" data-ofbid="d99640e520__20250409171041">禁写</p></th>
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_unx_wj4_fdc__entry__6"><p class="- topic/p p" data-ofbid="d99640e525__20250409171041">禁读</p></th>
<th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_unx_wj4_fdc__entry__7"><p class="- topic/p p" data-ofbid="d99640e529__20250409171041">归属</p></th>
<th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_unx_wj4_fdc__entry__8"><p class="- topic/p p" data-ofbid="d99640e533__20250409171041">备注</p></th>
</tr>
</thead><tbody class="- topic/tbody tbody">
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__1"><p class="- topic/p p" data-ofbid="d99640e543__20250409171041">DIS RD</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__2"><p class="- topic/p p" data-ofbid="d99640e547__20250409171041">64</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__3"><p class="- topic/p p" data-ofbid="d99640e551__20250409171041">0~7</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__4"><p class="- topic/p p" data-ofbid="d99640e555__20250409171041">0~1</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__5"><p class="- topic/p p" data-ofbid="d99640e559__20250409171041">V</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__6"><p class="- topic/p p" data-ofbid="d99640e564__20250409171041">-</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__7"><p class="- topic/p p" data-ofbid="d99640e568__20250409171041">CSTM</p></td>
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_unx_wj4_fdc__entry__8"><p class="- topic/p p" data-ofbid="d99640e572__20250409171041">eFuse 读禁止配置区域</p></td>
</tr>
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__1"><p class="- topic/p p" data-ofbid="d99640e579__20250409171041">DIS WR</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__2"><p class="- topic/p p" data-ofbid="d99640e583__20250409171041">64</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__3"><p class="- topic/p p" data-ofbid="d99640e587__20250409171041">8~F</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__4"><p class="- topic/p p" data-ofbid="d99640e591__20250409171041">2~3</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__5"><p class="- topic/p p" data-ofbid="d99640e595__20250409171041">-</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__6"><p class="- topic/p p" data-ofbid="d99640e600__20250409171041">-</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__7"><p class="- topic/p p" data-ofbid="d99640e604__20250409171041">-</p></td>
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_unx_wj4_fdc__entry__8"><p class="- topic/p p" data-ofbid="d99640e608__20250409171041">eFuse 写禁止配置区域</p></td>
</tr>
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__1"><p class="- topic/p p" data-ofbid="d99640e615__20250409171041">SPI ENC KEY</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__2"><p class="- topic/p p" data-ofbid="d99640e619__20250409171041">128</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__3"><p class="- topic/p p" data-ofbid="d99640e623__20250409171041">A0~AF</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__4"><p class="- topic/p p" data-ofbid="d99640e627__20250409171041">40~43</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__5"><p class="- topic/p p" data-ofbid="d99640e631__20250409171041">V</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__6"><p class="- topic/p p" data-ofbid="d99640e636__20250409171041">V</p></td>
<td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_unx_wj4_fdc__entry__7"><p class="- topic/p p" data-ofbid="d99640e640__20250409171041">CSTM</p></td>
<td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_unx_wj4_fdc__entry__8"><p class="- topic/p p" data-ofbid="d99640e644__20250409171041">安全，连接到 SPI ENC，对称密钥</p></td>
</tr>
<tr class="- topic/row">
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_unx_wj4_fdc__entry__1"><p class="- topic/p p" data-ofbid="d99640e651__20250409171041">SPI ENC NONCE</p></td>
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_unx_wj4_fdc__entry__2"><p class="- topic/p p" data-ofbid="d99640e655__20250409171041">64</p></td>
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_unx_wj4_fdc__entry__3"><p class="- topic/p p" data-ofbid="d99640e659__20250409171041">B0~B7</p></td>
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_unx_wj4_fdc__entry__4"><p class="- topic/p p" data-ofbid="d99640e663__20250409171041">44~45</p></td>
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_unx_wj4_fdc__entry__5"><p class="- topic/p p" data-ofbid="d99640e667__20250409171041">V</p></td>
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_unx_wj4_fdc__entry__6"><p class="- topic/p p" data-ofbid="d99640e672__20250409171041">V</p></td>
<td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_unx_wj4_fdc__entry__7"><p class="- topic/p p" data-ofbid="d99640e676__20250409171041">CSTM</p></td>
<td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_unx_wj4_fdc__entry__8"><p class="- topic/p p" data-ofbid="d99640e680__20250409171041">安全，连接到 SPI ENC，随机数</p></td>
</tr>
</tbody></table></div></div>
<p class="- topic/p p" data-ofbid="d99640e688__20250409171041">具体 eFuse 区域的地址，请参考芯片的数据手册。</p>
</section>
<section class="- topic/section section" id="id__spi-enc-key" data-ofbid="id__spi-enc-key"><h2 class="- topic/title title sectiontitle">烧写 SPI_ENC KEY</h2>
<strong class="+ topic/ph hi-d/b ph b">到 eFuse
中</strong><ol class="- topic/ol ol" id="id__ol_rxg_fqt_vcc" data-ofbid="id__ol_rxg_fqt_vcc">
<li class="- topic/li li" data-ofbid="d99640e700__20250409171041">主机端执行 <code class="+ topic/ph pr-d/codeph ph codeph">opensslrand-hex16</code> 生成 SPI_ENC KEY。
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_g2b_gqt_vcc" data-ofbid="id__pre_g2b_gqt_vcc"><span class="hl-number">52e0</span>ef932d755b69f7a93dd7485748d8</pre>
</li>
<li class="- topic/li li" data-ofbid="d99640e709__20250409171041">
<div class="- topic/p p" data-ofbid="d99640e711__20250409171041">在开发板平台命令行执行下列命令，烧录 SPI_ENC KEY 到 eFuse 中。
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_cnl_gqt_vcc" data-ofbid="id__pre_cnl_gqt_vcc">efuse writehex <span class="hl-number">0xA0</span> <span class="hl-number">52e0</span>ef932d755b69f7a93dd7485748d8</pre>
</div>
</li>
<li class="- topic/li li" data-ofbid="d99640e718__20250409171041">
<p class="- topic/p p" data-ofbid="d99640e720__20250409171041">禁止 SPI_ENC KEY 读写</p>
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_vvr_gqt_vcc" data-ofbid="id__pre_vvr_gqt_vcc">efuse writehex <span class="hl-number">0x04</span> <span class="hl-number">000f</span>0000
efuse writehex <span class="hl-number">0x0c</span> <span class="hl-number">000f</span>0000</pre>
</li>
</ol>
</section>
<section class="- topic/section section" id="id__spi-enc-nonce" data-ofbid="id__spi-enc-nonce"><h2 class="- topic/title title sectiontitle">烧写 SPI_ENC
NONCE 到 eFuse
中</h2>
<ol class="- topic/ol ol" id="id__ol_of4_3qt_vcc" data-ofbid="id__ol_of4_3qt_vcc">
<li class="- topic/li li" data-ofbid="d99640e736__20250409171041">主机端执行 <code class="+ topic/ph pr-d/codeph ph codeph">opensslrand-hex8</code> 生成 SPI_ENC NONCE。
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_z1w_3qt_vcc" data-ofbid="id__pre_z1w_3qt_vcc">bb99eb4ababc43dc</pre>
</li>
<li class="- topic/li li" data-ofbid="d99640e745__20250409171041">
<div class="- topic/p p" data-ofbid="d99640e747__20250409171041">在开发板平台命令行执行下列命令，烧录 SPI_ENC NONCE 到 eFuse 中。
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_ij2_jqt_vcc" data-ofbid="id__pre_ij2_jqt_vcc">efuse writehex <span class="hl-number">0xB0</span> bb99eb4ababc43dc</pre>
</div>
</li>
<li class="- topic/li li" data-ofbid="d99640e754__20250409171041">
<p class="- topic/p p" data-ofbid="d99640e756__20250409171041">禁止 SPI_ENC NONCE 读写</p>
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__pre_hdz_jqt_vcc" data-ofbid="id__pre_hdz_jqt_vcc">efuse writehex <span class="hl-number">0x04</span> <span class="hl-number">00300000</span>
efuse writehex <span class="hl-number">0x0c</span> <span class="hl-number">00300000</span></pre>
</li>
</ol>
</section>
</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__secure" data-tocid="id__secure">SECURE 区域定义</a></div></li><li class="section-item"><div class="section-title"><a href="#id__bootloader" data-tocid="id__bootloader">在
BootLoader
中启用 SPIENC
驱动</a></div></li><li class="section-item"><div class="section-title"><a href="#id__section_ydv_fk4_fdc" data-tocid="id__section_ydv_fk4_fdc">在 RTOS 中启用
SPIENC
驱动
</a></div></li><li class="section-item"><div class="section-title"><a href="#id__section_f14_vj4_fdc" data-tocid="id__section_f14_vj4_fdc">配置密钥及所需的
KEY 和 COUNTER 值</a></div></li><li class="section-item"><div class="section-title"><a href="#id__spi-enc-key" data-tocid="id__spi-enc-key">烧写 SPI_ENC KEY</a></div></li><li class="section-item"><div class="section-title"><a href="#id__spi-enc-nonce" data-tocid="id__spi-enc-nonce">烧写 SPI_ENC
NONCE 到 eFuse
中</a></div></li></ul></div>
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