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<span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" title="Edit this document" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/ce/ce-demo.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">应用编程</h1>
|
||
|
||
<div class="date inPage">15 Jan 2024</div><div style="color: gray;">
|
||
Read time: 3 minute(s)
|
||
</div>
|
||
<div class="- topic/body concept/conbody body conbody">
|
||
<p class="- topic/p p" data-ofbid="d94047e33__20250123155207">用户空间编程使用 CE 时，根据使用场景和需求的不同，有几层 API 可以选择：</p>
|
||
<ul class="- topic/ul ul" id="ce_demo__ul_p45_vpy_21c" data-ofbid="ce_demo__ul_p45_vpy_21c">
|
||
<li class="- topic/li li" data-ofbid="d94047e38__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e40__20250123155207"><span class="+ topic/keyword pr-d/apiname keyword apiname">AF_ALG Socket API</span></p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d94047e45__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e47__20250123155207"><span class="+ topic/keyword pr-d/apiname keyword apiname">Libkcapi API</span></p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d94047e52__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e54__20250123155207"><span class="+ topic/keyword pr-d/apiname keyword apiname">OpenSSL API</span></p>
|
||
</li>
|
||
</ul>
|
||
<figure class="- topic/fig fig fignone" id="ce_demo__fig_ndg_cqy_21c" data-ofbid="ce_demo__fig_ndg_cqy_21c">
|
||
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="ce_demo__image_q45_vpy_21c" src="../../../images/ce/ce_userpace_api.png" alt="ce_userpace_api"/></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">用户空间 API 对接</span></figcaption></figure>
|
||
<section class="- topic/section section" id="ce_demo__section_r45_vpy_21c" data-ofbid="ce_demo__section_r45_vpy_21c"><h2 class="- topic/title title sectiontitle">AF_ALG API</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d94047e77__20250123155207">相关 API 可参考头文件 <span class="+ topic/ph sw-d/filepath ph filepath">linux/if_alg.h</span></p>
|
||
<div class="- topic/p p" data-ofbid="d94047e82__20250123155207">要使用内核提供的算法和驱动，需要知道对应的算法名字。可通过下列命令获取：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ce_demo__codeblock_ysz_kc3_p1c" data-ofbid="ce_demo__codeblock_ysz_kc3_p1c"><code>cat /proc/crypto</code></pre></div>
|
||
<div class="- topic/p p" data-ofbid="d94047e87__20250123155207">例如:<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ce_demo__codeblock_aq2_bqy_21c" data-ofbid="ce_demo__codeblock_aq2_bqy_21c"><code>name : ctr(aes)
|
||
driver : ctr-aes-aic
|
||
module : kernel
|
||
priority : <span class="hl-number">400</span>
|
||
refcnt : <span class="hl-number">1</span>
|
||
selftest : passed
|
||
internal : no
|
||
type : skcipher
|
||
async : yes
|
||
blocksize : <span class="hl-number">16</span>
|
||
min keysize : <span class="hl-number">16</span>
|
||
max keysize : <span class="hl-number">32</span>
|
||
ivsize : <span class="hl-number">16</span>
|
||
chunksize : <span class="hl-number">16</span>
|
||
walksize : <span class="hl-number">16</span>
|
||
|
||
name : cbc(aes)
|
||
driver : cbc-aes-aic
|
||
module : kernel
|
||
priority : <span class="hl-number">400</span>
|
||
refcnt : <span class="hl-number">1</span>
|
||
selftest : passed
|
||
internal : no
|
||
type : skcipher
|
||
async : yes
|
||
blocksize : <span class="hl-number">16</span>
|
||
min keysize : <span class="hl-number">16</span>
|
||
max keysize : <span class="hl-number">32</span>
|
||
ivsize : <span class="hl-number">16</span>
|
||
chunksize : <span class="hl-number">16</span>
|
||
walksize : <span class="hl-number">16</span>
|
||
|
||
......</code></pre></div>
|
||
<p class="- topic/p p" data-ofbid="d94047e92__20250123155207">这里的 <span class="+ topic/ph sw-d/filepath ph filepath">/proc/crypto</span> 是目标平台上的文件</p>
|
||
<p class="- topic/p p" data-ofbid="d94047e99__20250123155207"><span class="+ topic/keyword pr-d/apiname keyword apiname">AF_ALG API</span> 的特点：</p>
|
||
<ul class="- topic/ul ul" id="ce_demo__ul_x45_vpy_21c" data-ofbid="ce_demo__ul_x45_vpy_21c">
|
||
<li class="- topic/li li" data-ofbid="d94047e106__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e108__20250123155207">效率高</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d94047e112__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e114__20250123155207">接口灵活</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d94047e118__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e120__20250123155207">较为复杂</p>
|
||
</li>
|
||
</ul>
|
||
</section>
|
||
<section class="- topic/section section" id="ce_demo__section_y45_vpy_21c" data-ofbid="ce_demo__section_y45_vpy_21c"><h2 class="- topic/title title sectiontitle">Libkcapi API</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d94047e131__20250123155207">SDK 已经提供对应的 <span class="+ topic/keyword pr-d/apiname keyword apiname">libkcapi</span> 库，默认配置已经支持</p>
|
||
<ul class="- topic/ul ul" id="ce_demo__ul_ap5_vpy_21c" data-ofbid="ce_demo__ul_ap5_vpy_21c">
|
||
<li class="- topic/li li" data-ofbid="d94047e139__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e141__20250123155207">对称密钥算法</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d94047e145__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e147__20250123155207">非对称密钥算法</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d94047e151__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e153__20250123155207">消息摘要算法</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d94047e157__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e159__20250123155207">随机数读取</p>
|
||
</li>
|
||
</ul>
|
||
<p class="- topic/p p" data-ofbid="d94047e164__20250123155207">如果需要修改对应包的编译配置，可在 Luban SDK 顶层目录执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">make menuconfig</span> 或 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">make
|
||
m</span>。</p>
|
||
<div class="- topic/p p" data-ofbid="d94047e173__20250123155207">配置界面的索引如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ce_demo__codeblock_t2f_pc3_p1c" data-ofbid="ce_demo__codeblock_t2f_pc3_p1c"><code>Third-party packages --->
|
||
-*- libkcapi --->
|
||
[*] use prebuilt binary instead of building from source
|
||
[*] enable asym algorithm support
|
||
[*] build enc application
|
||
[*] build hasher application
|
||
[*] build rng read application
|
||
[*] build speed-test program
|
||
[*] build test program
|
||
</code></pre></div>
|
||
<p class="- topic/p p" data-ofbid="d94047e179__20250123155207"><span class="+ topic/keyword pr-d/apiname keyword apiname">Libkcapi</span> 的特点：</p>
|
||
<ul class="- topic/ul ul" id="ce_demo__ul_ep5_vpy_21c" data-ofbid="ce_demo__ul_ep5_vpy_21c">
|
||
<li class="- topic/li li" data-ofbid="d94047e186__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e188__20250123155207">接口简单</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d94047e192__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e194__20250123155207">效率高</p>
|
||
</li>
|
||
</ul>
|
||
<p class="- topic/p p" data-ofbid="d94047e199__20250123155207">基于 <span class="+ topic/keyword pr-d/apiname keyword apiname">Libkcapi API</span> 的参考示例
|
||
<span class="+ topic/ph sw-d/filepath ph filepath">source/artinchip/test-ce/kcapi/</span>。</p>
|
||
</section>
|
||
<section class="- topic/section section" id="ce_demo__section_gp5_vpy_21c" data-ofbid="ce_demo__section_gp5_vpy_21c"><h2 class="- topic/title title sectiontitle">OpenSSL API</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d94047e215__20250123155207">Luban SDK 通过 OpenSSL 的 Engine 机制，以实现 Engine 库的方式，已经完成了对 OpenSSL 的对接。 无论是通过 OpenSSL
|
||
的命令行，还是通过使用库编程，都可以使用到 CE。</p>
|
||
<p class="- topic/p p" data-ofbid="d94047e218__20250123155207">Engine 库有两个，根据不同的目的进行使用。</p>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="ce_demo__table_hp5_vpy_21c" data-ofbid="ce_demo__table_hp5_vpy_21c" data-cols="3"><caption></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:25.666666666666664%"/><col style="width:57.666666666666664%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="ce_demo__table_hp5_vpy_21c__entry__1">Engine</th>
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="ce_demo__table_hp5_vpy_21c__entry__2">库和路径</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="ce_demo__table_hp5_vpy_21c__entry__3">说明</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ce_demo__table_hp5_vpy_21c__entry__1">aic engine</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ce_demo__table_hp5_vpy_21c__entry__2"><span class="+ topic/ph sw-d/filepath ph filepath">usr/lib/libengine_aic.so</span></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ce_demo__table_hp5_vpy_21c__entry__3">实现 CE 所提供的对称密钥算法、RSA 算法和消息摘要算法该 Engine 实现的都是标准算法。</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ce_demo__table_hp5_vpy_21c__entry__1">huk engine</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ce_demo__table_hp5_vpy_21c__entry__2"><span class="+ topic/ph sw-d/filepath ph filepath">usr/lib/libengine_huk.so</span></td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ce_demo__table_hp5_vpy_21c__entry__3">实现了 HUK 保护的 AES 算法，可用于本地数据保护。使用该 Engine 时，输入的密钥会被 HUK
|
||
进行一次解密，然后才用于 AES 加解密。HUK 每一颗芯片不同，因此使用该 Engine
|
||
加密后的数据，仅当前平台可解密。</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<p class="- topic/p p" data-ofbid="d94047e277__20250123155207">命令行中使用指定 Engine 的示例:</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ce_demo__codeblock_ip5_vpy_21c" data-ofbid="ce_demo__codeblock_ip5_vpy_21c"><code>openssl enc -engine aic -p -nosalt -nopad -aes-<span class="hl-number">128</span>-ecb -e -K <span class="hl-number">0123</span> -in data.bin -out enc.bin</code></pre>
|
||
<p class="- topic/p p" data-ofbid="d94047e284__20250123155207">上述示例中，通过 <span class="+ topic/keyword pr-d/parmname keyword parmname">-engine aic</span> 指定了使用 <span class="+ topic/keyword pr-d/parmname keyword parmname">aic</span> engine。</p>
|
||
<p class="- topic/p p" data-ofbid="d94047e293__20250123155207">当在 <span class="+ topic/ph sw-d/filepath ph filepath">openssl.cnf</span> 文件中配置了默认的 Engine 之后，命令行中可以忽略 <span class="+ topic/keyword pr-d/parmname keyword parmname">-engine</span>
|
||
参数。 具体配置可参考 <span class="+ topic/ph sw-d/filepath ph filepath">/etc/ssl/openssl_aic.cnf</span> 文件。</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ce_demo__codeblock_jp5_vpy_21c" data-ofbid="ce_demo__codeblock_jp5_vpy_21c"><code>openssl_conf = openssl_def
|
||
|
||
[openssl_def]
|
||
engines = engine_section
|
||
|
||
[engine_section]
|
||
aic = aic_section
|
||
|
||
[aic_section]
|
||
engine_id = aic
|
||
dynamic_path = /usr/lib/libengine_aic.so
|
||
default_algorithms = CIPHERS,DIGESTS,RSA
|
||
</code></pre>
|
||
<p class="- topic/p p" data-ofbid="d94047e308__20250123155207">Libopenssl API 的特点：</p>
|
||
<ul class="- topic/ul ul" id="ce_demo__ul_lp5_vpy_21c" data-ofbid="ce_demo__ul_lp5_vpy_21c">
|
||
<li class="- topic/li li" data-ofbid="d94047e313__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e315__20250123155207">功能强大</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d94047e319__20250123155207">
|
||
<p class="- topic/p p" data-ofbid="d94047e321__20250123155207">调用效率稍差</p>
|
||
</li>
|
||
</ul>
|
||
<p class="- topic/p p" data-ofbid="d94047e327__20250123155207">基于 Libopenssl API 的参考示例: <span class="+ topic/ph sw-d/filepath ph filepath">source/artinchip/test-ce/openssl/</span></p>
|
||
</section>
|
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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="#ce_demo__section_r45_vpy_21c" data-tocid="ce_demo__section_r45_vpy_21c">AF_ALG API</a></div></li><li class="section-item"><div class="section-title"><a href="#ce_demo__section_y45_vpy_21c" data-tocid="ce_demo__section_y45_vpy_21c">Libkcapi API</a></div></li><li class="section-item"><div class="section-title"><a href="#ce_demo__section_gp5_vpy_21c" data-tocid="ce_demo__section_gp5_vpy_21c">OpenSSL API</a></div></li></ul></div>
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