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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://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/ce/ce_design_lite.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">设计说明</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
Read time: 3 minute(s)
</div><div class="- topic/body body"><section class="- topic/section section" id="id__id2" data-ofbid="id__id2"><h2 class="- topic/title title sectiontitle">源码说明</h2>
<ul class="- topic/ul ul simple" id="id__ul_qty_tc3_bdc" data-ofbid="id__ul_qty_tc3_bdc"><li class="- topic/li li" data-ofbid="d248044e25__20250121171701">
<p class="- topic/p p" data-ofbid="d248044e27__20250121171701"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/drv/ce/drv_ce.c</span>，CE Driver 层实现</p>
</li><li class="- topic/li li" data-ofbid="d248044e32__20250121171701">
<p class="- topic/p p" data-ofbid="d248044e34__20250121171701"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/hal/ce/hal_ce.c</span>，CE HAL 层实现</p>
</li><li class="- topic/li li" data-ofbid="d248044e39__20250121171701">
<p class="- topic/p p" data-ofbid="d248044e41__20250121171701"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/include/hal/hal_ce.h</span>，CE HAL 层接口头文件</p>
</li></ul>
</section><section class="- topic/section section" id="id__id3" data-ofbid="id__id3"><h2 class="- topic/title title sectiontitle">模块架构</h2>
<p class="- topic/p p" data-ofbid="d248044e52__20250121171701">CE 驱动 Driver 层采用 RT-Thread 的 HWCRYPTO 设备驱动框架，如果只使用 HAL 层也可以支持 baremetal 方式的应用场景。</p>
<figure class="- topic/fig fig fignone" id="id__id4" data-ofbid="id__id4"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="id__image_rty_tc3_bdc" src="../../../images/sdk/sw_system7.png" alt="sw_system7"/></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">CE 驱动的软件架构图</span></figcaption></figure>
</section><section class="- topic/section section" id="id__driver" data-ofbid="id__driver"><h2 class="- topic/title title sectiontitle">Driver 层接口设计</h2>
<div class="table-container"><table class="- topic/table table frame-all" id="id__table_sty_tc3_bdc" data-ofbid="id__table_sty_tc3_bdc" data-cols="2"><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"><strong class="+ topic/ph hi-d/b ph b">drv_aes_init</strong></span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_sty_tc3_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_sty_tc3_bdc__entry__2">rt_err_t drv_aes_init(struct rt_hwcrypto_ctx *ctx)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_sty_tc3_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_sty_tc3_bdc__entry__2">AES 算法初始化</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_sty_tc3_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_sty_tc3_bdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">struct rt_hwcrypto_ctx *ctx - 上下文实例指针</div>
</div>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_sty_tc3_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_sty_tc3_bdc__entry__2">0，初始化成功；其它，初始化失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_sty_tc3_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_sty_tc3_bdc__entry__2">-</td></tr></tbody></table></div>
<div class="table-container"><table class="- topic/table table frame-all" id="id__table_tty_tc3_bdc" data-ofbid="id__table_tty_tc3_bdc" data-cols="2"><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"><strong class="+ topic/ph hi-d/b ph b">aes_ecb_crypto</strong></span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_tty_tc3_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_tty_tc3_bdc__entry__2">s32 aes_ecb_crypto(u8 *key, u8 keylen, u8 dir, u8 *in, u8 *out,
u32 len)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_tty_tc3_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_tty_tc3_bdc__entry__2">AES ECB 加解密实现</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_tty_tc3_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_tty_tc3_bdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">u8 *key - 密钥的指针</div>
<div class="- topic/div div">u8 keylen - 密钥的长度</div>
<div class="- topic/div div">u8 dir - 运算方向；0，加密；1，解密</div>
<div class="- topic/div div">u8 *in - 输入数据</div>
<div class="- topic/div div">u8 *out - 输出数据</div>
<div class="- topic/div div">u32 len - 数据长度</div>
</div>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_tty_tc3_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_tty_tc3_bdc__entry__2">0，加解密成功；其它，加解密失败。</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_tty_tc3_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_tty_tc3_bdc__entry__2">-</td></tr></tbody></table></div>
<div class="table-container"><table class="- topic/table table frame-all" id="id__table_uty_tc3_bdc" data-ofbid="id__table_uty_tc3_bdc" data-cols="2"><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"> 3</span><span class="table--title-label-punctuation">. </span></span><span class="table--title"><strong class="+ topic/ph hi-d/b ph b">aes_cbc_crypto</strong>
</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_uty_tc3_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_uty_tc3_bdc__entry__2">s32 aes_cbc_crypto(u8 *key, u8 keylen, u8 dir, u8 *iv, u8 *in, u8
*out, u32 len)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_uty_tc3_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_uty_tc3_bdc__entry__2">AES CBC 加解密实现</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_uty_tc3_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_uty_tc3_bdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">u8 *key - 密钥的指针</div>
<div class="- topic/div div">u8 keylen - 密钥的长度</div>
<div class="- topic/div div">u8 dir - 运算方向；0，加密；1，解密</div>
<div class="- topic/div div">u8 *iv - 输入 iv</div>
<div class="- topic/div div">u8 *in - 输入数据</div>
<div class="- topic/div div">u8 *out - 输出数据</div>
<div class="- topic/div div">u32 len - 数据长度</div>
</div>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_uty_tc3_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_uty_tc3_bdc__entry__2">0，加解密成功；其它，加解密失败。</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_uty_tc3_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_uty_tc3_bdc__entry__2">-</td></tr></tbody></table></div>
<div class="table-container"><table class="- topic/table table frame-all" id="id__table_vty_tc3_bdc" data-ofbid="id__table_vty_tc3_bdc" data-cols="2"><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"> 4</span><span class="table--title-label-punctuation">. </span></span><span class="table--title"><strong class="+ topic/ph hi-d/b ph b">drv_sha_init</strong></span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_vty_tc3_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_vty_tc3_bdc__entry__2">rt_err_t drv_sha_init(struct rt_hwcrypto_ctx *ctx)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_vty_tc3_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_vty_tc3_bdc__entry__2">SHA 算法初始化</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_vty_tc3_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_vty_tc3_bdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">struct rt_hwcrypto_ctx *ctx - 上下文实例指针</div>
</div>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_vty_tc3_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_vty_tc3_bdc__entry__2">0，初始化成功；其它，初始化失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_vty_tc3_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_vty_tc3_bdc__entry__2">-</td></tr></tbody></table></div>
<div class="table-container"><table class="- topic/table table frame-all" id="id__table_wty_tc3_bdc" data-ofbid="id__table_wty_tc3_bdc" data-cols="2"><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"> 5</span><span class="table--title-label-punctuation">. </span></span><span class="table--title"><strong class="+ topic/ph hi-d/b ph b">drv_sha_start</strong></span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_wty_tc3_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_wty_tc3_bdc__entry__2">rt_err_t drv_sha_start(struct rt_hwcrypto_ctx *ctx)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_wty_tc3_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_wty_tc3_bdc__entry__2">SHA 算法启动</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_wty_tc3_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_wty_tc3_bdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">struct rt_hwcrypto_ctx *ctx - 上下文实例指针</div>
</div>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_wty_tc3_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_wty_tc3_bdc__entry__2">0，初始化成功；其它，初始化失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_wty_tc3_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_wty_tc3_bdc__entry__2">-</td></tr></tbody></table></div>
<div class="table-container"><table class="- topic/table table frame-all" id="id__table_xty_tc3_bdc" data-ofbid="id__table_xty_tc3_bdc" data-cols="2"><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"> 6</span><span class="table--title-label-punctuation">. </span></span><span class="table--title"><strong class="+ topic/ph hi-d/b ph b">drv_sha_update</strong></span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_xty_tc3_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_xty_tc3_bdc__entry__2">rt_err_t drv_sha_update(aic_sha_context_t *context, const void
*input, uint32_t size)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_xty_tc3_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_xty_tc3_bdc__entry__2">更新一笔 SHA 算法数据</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_xty_tc3_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_xty_tc3_bdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">struct rt_hwcrypto_ctx *ctx - 上下文实例指针</div>
<div class="- topic/div div">void *input - 输入数据</div>
<div class="- topic/div div">uint32_t size - 输入数据长度</div>
</div>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_xty_tc3_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_xty_tc3_bdc__entry__2">0，运算成功；其它，运算失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_xty_tc3_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_xty_tc3_bdc__entry__2">-</td></tr></tbody></table></div>
<div class="table-container"><table class="- topic/table table frame-all" id="id__table_yty_tc3_bdc" data-ofbid="id__table_yty_tc3_bdc" data-cols="2"><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"> 7</span><span class="table--title-label-punctuation">. </span></span><span class="table--title"><strong class="+ topic/ph hi-d/b ph b">drv_sha_finish</strong></span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_yty_tc3_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_yty_tc3_bdc__entry__2">rt_err_t drv_sha_finish(struct hwcrypto_hash *ctx, void *output,
rt_size_t *out_size)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_yty_tc3_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_yty_tc3_bdc__entry__2">SHA 算法运算结束，获取结果</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_yty_tc3_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_yty_tc3_bdc__entry__2">
<div class="- topic/div div">
<div class="- topic/div div">struct hwcrypto_hash *ctx - 上下文 HASH 实例指针</div>
<div class="- topic/div div">void *output - 输出数据</div>
<div class="- topic/div div">rt_size_t *out_size - 输出数据长度</div>
</div>
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_yty_tc3_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_yty_tc3_bdc__entry__2">0，获取结果成功；其它，获取结果失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_yty_tc3_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_yty_tc3_bdc__entry__2">-</td></tr></tbody></table></div>
</section><section class="- topic/section section" id="id__hal" data-ofbid="id__hal"><h2 class="- topic/title title sectiontitle">HAL 层接口设计</h2>
<div class="- topic/p p" data-ofbid="d248044e408__20250121171701">HAL 层的函数接口声明存放在 hal_ce.h
中，主要接口有：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_srp_5h4_fdc" data-ofbid="id__codeblock_srp_5h4_fdc">s32 hal_crypto_init(<strong class="hl-keyword">void</strong>);
s32 hal_crypto_deinit(<strong class="hl-keyword">void</strong>);
<strong class="hl-keyword">void</strong> hal_crypto_irq_handler();
s32 hal_crypto_start_symm(<strong class="hl-keyword">struct</strong> crypto_task *task);
s32 hal_crypto_start_asym(<strong class="hl-keyword">struct</strong> crypto_task *task);
s32 hal_crypto_start_hash(<strong class="hl-keyword">struct</strong> crypto_task *task);
u32 hal_crypto_poll_finish(u32 alg_unit);
<strong class="hl-keyword">void</strong> hal_crypto_pending_clear(u32 alg_unit);
u32 hal_crypto_get_err(u32 alg_unit);
s32 hal_crypto_bignum_byteswap(u8 *bn, u32 len);
s32 hal_crypto_bignum_le2be(u8 *src, u32 slen, u8 *dst, u32 dlen);
s32 hal_crypto_bignum_be2le(u8 *src, u32 slen, u8 *dst, u32 dlen);</pre></div>
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