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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1">
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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_data_struct.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">数据结构设计</h1>
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<div class="date inPage">15 Jan 2024</div><div style="color: gray;">
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Read time: 5 minute(s)
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</div>
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<div class="- topic/body concept/conbody body conbody">
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<section class="- topic/section section" id="ce_data_structure_design__section_g5w_fby_21c" data-ofbid="ce_data_structure_design__section_g5w_fby_21c"><h2 class="- topic/title title sectiontitle">设备结构体</h2>
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<div class="- topic/p p" data-ofbid="d71310e38__20250123155204">CE 设备结构体用来保存 CE 基地址等相关信息，除此之外，还包含了三个不同类型的算法加速器结构体， 以及安全 SRAM
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的分配管理信息等。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ce_data_structure_design__codeblock_iz4_nby_21c" data-ofbid="ce_data_structure_design__codeblock_iz4_nby_21c"><code><strong class="hl-keyword">struct</strong> aic_alg_accelerator {
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<strong class="hl-keyword">struct</strong> crypto_engine *engine;
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<strong class="hl-keyword">struct</strong> mutex alock;
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DECLARE_KFIFO_PTR(req_fifo, <strong class="hl-keyword">void</strong> *);
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};
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<strong class="hl-keyword">struct</strong> aic_crypto_dev {
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<strong class="hl-keyword">struct</strong> device *dev;
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<strong class="hl-keyword">void</strong> __iomem *base;
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<strong class="hl-keyword">struct</strong> clk *clk;
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<strong class="hl-keyword">struct</strong> reset_control *reset;
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<strong class="hl-keyword">struct</strong> mutex mlock;
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<strong class="hl-keyword">struct</strong> aic_alg_accelerator sk_accel;
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<strong class="hl-keyword">struct</strong> aic_alg_accelerator ak_accel;
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<strong class="hl-keyword">struct</strong> aic_alg_accelerator hash_accel;
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u64 ssram_bitmap;
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u32 irq_status;
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u32 err_status;
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};</code></pre></div>
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<p class="- topic/p p" data-ofbid="d71310e43__20250123155204">其中：</p>
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<ul class="- topic/ul ul" id="ce_data_structure_design__ul_j5w_fby_21c" data-ofbid="ce_data_structure_design__ul_j5w_fby_21c">
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<li class="- topic/li li" data-ofbid="d71310e48__20250123155204">
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<p class="- topic/p p" data-ofbid="d71310e50__20250123155204">sk_accel</p>
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<p class="- topic/p p" data-ofbid="d71310e53__20250123155204">对称密钥算法加速器结构体，用于管理对称密钥算法所使用的 crypto_engine 实例，以及正在处理的请求 FIFO。</p>
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</li>
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<li class="- topic/li li" data-ofbid="d71310e57__20250123155204">
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<p class="- topic/p p" data-ofbid="d71310e59__20250123155204">ak_accel</p>
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<p class="- topic/p p" data-ofbid="d71310e62__20250123155204">非对称密钥算法加速器结构体，用于管理非对称密钥算法所使用的 crypto_engine 实例，以及正在处理的请求 FIFO。</p>
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</li>
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<li class="- topic/li li" data-ofbid="d71310e66__20250123155204">
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<p class="- topic/p p" data-ofbid="d71310e68__20250123155204">hash_accel</p>
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<p class="- topic/p p" data-ofbid="d71310e71__20250123155204">消息摘要算法加速器结构体，用于管理消息摘要算法所使用的 crypto_engine 实例，以及正在处理的请求 FIFO。</p>
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</li>
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<li class="- topic/li li" data-ofbid="d71310e75__20250123155204">
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<p class="- topic/p p" data-ofbid="d71310e77__20250123155204">ssram_bitmap</p>
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<p class="- topic/p p" data-ofbid="d71310e80__20250123155204">安全 SRAM 空间的分配位图。安全 SRAM 按照 32 字节为单位进行分配管理，这里每一个比特对应一个 32 字节的安全 SRAM 空间。</p>
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</li>
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<li class="- topic/li li" data-ofbid="d71310e84__20250123155204">
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<p class="- topic/p p" data-ofbid="d71310e86__20250123155204">irq_status</p>
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<p class="- topic/p p" data-ofbid="d71310e89__20250123155204">记录最新的 IRQ 状态寄存器的值。</p>
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</li>
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<li class="- topic/li li" data-ofbid="d71310e94__20250123155204">
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|
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<p class="- topic/p p" data-ofbid="d71310e96__20250123155204">err_status</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e99__20250123155204">记录最新的错误状态寄存器的值。</p>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
</section>
|
|||
|
|
<section class="- topic/section section" id="ce_data_structure_design__section_k5w_fby_21c" data-ofbid="ce_data_structure_design__section_k5w_fby_21c"><h2 class="- topic/title title sectiontitle">对称密钥算法</h2>
|
|||
|
|
|
|||
|
|
<div class="- topic/p p" data-ofbid="d71310e110__20250123155204">aic_skcipher_tfm_ctx 是一个对称密钥算法实例对应的上下文结构体，当用户使用 API
|
|||
|
|
接口<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ce_data_structure_design__codeblock_dfd_mby_21c" data-ofbid="ce_data_structure_design__codeblock_dfd_mby_21c"><code><strong class="hl-keyword">struct</strong> crypto_skcipher *
|
|||
|
|
crypto_alloc_skcipher(<strong class="hl-keyword">const</strong> <strong class="hl-keyword">char</strong> *alg_name, u32 type, u32 mask);</code></pre></div>
|
|||
|
|
<div class="- topic/p p" data-ofbid="d71310e115__20250123155204">创建一个实例时，自动创建对应的上下文。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ce_data_structure_design__codeblock_kyp_mby_21c" data-ofbid="ce_data_structure_design__codeblock_kyp_mby_21c"><code><strong class="hl-keyword">struct</strong> aic_skcipher_tfm_ctx {
|
|||
|
|
<strong class="hl-keyword">struct</strong> crypto_engine_ctx enginectx;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> *inkey;
|
|||
|
|
<strong class="hl-keyword">int</strong> inkeylen;
|
|||
|
|
<strong class="hl-keyword">struct</strong> aic_crypto_dev *ce;
|
|||
|
|
};</code></pre></div>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e120__20250123155204">其中：</p>
|
|||
|
|
<ul class="- topic/ul ul" id="ce_data_structure_design__ul_o5w_fby_21c" data-ofbid="ce_data_structure_design__ul_o5w_fby_21c">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e125__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e127__20250123155204">enginectx</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e130__20250123155204">crypto_engine 的上下文，用于配置该算法的回调处理函数。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e134__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e136__20250123155204">inkey</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e139__20250123155204">用于保存用户配置的密钥信息。此处保存的密钥不直接交给 CE 硬件。</p>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ce_data_structure_design__codeblock_ipz_kby_21c" data-ofbid="ce_data_structure_design__codeblock_ipz_kby_21c"><code><strong class="hl-keyword">struct</strong> aic_skcipher_reqctx {
|
|||
|
|
<strong class="hl-keyword">struct</strong> task_desc *task;
|
|||
|
|
dma_addr_t phy_task;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> *key;
|
|||
|
|
dma_addr_t phy_key;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> *iv;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> *backup_ivs; <em class="hl-comment">/* Back up iv for CBC decrypt */</em>
|
|||
|
|
dma_addr_t phy_iv;
|
|||
|
|
dma_addr_t ssram_addr;
|
|||
|
|
dma_addr_t backup_phy_ivs;
|
|||
|
|
dma_addr_t next_iv; <em class="hl-comment">/* Next IV address for CBC encrypt */</em>
|
|||
|
|
<strong class="hl-keyword">int</strong> tasklen;
|
|||
|
|
<strong class="hl-keyword">int</strong> keylen;
|
|||
|
|
<strong class="hl-keyword">int</strong> ivsize;
|
|||
|
|
<strong class="hl-keyword">int</strong> blocksize;
|
|||
|
|
<strong class="hl-keyword">int</strong> backup_iv_cnt;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong> mode;
|
|||
|
|
<strong class="hl-keyword">void</strong> *src_cpy_buf;
|
|||
|
|
<strong class="hl-keyword">void</strong> *dst_cpy_buf;
|
|||
|
|
dma_addr_t src_phy_buf;
|
|||
|
|
dma_addr_t dst_phy_buf;
|
|||
|
|
bool src_map_sg;
|
|||
|
|
bool dst_map_sg;
|
|||
|
|
};</code></pre>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e148__20250123155204">aic_skcipher_reqctx 是每一个数据请求所对应的上下文，在每一个 struct skcipher_request 实例化时自动创建。</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e151__20250123155204">其中：</p>
|
|||
|
|
<ul class="- topic/ul ul" id="ce_data_structure_design__ul_r5w_fby_21c" data-ofbid="ce_data_structure_design__ul_r5w_fby_21c">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e156__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e158__20250123155204">task</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e161__20250123155204">CE 任务描述符指针。任务描述符所使用的空间是动态分配的空间，需要相关指针信息保存，以便完成时释放。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e165__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e167__20250123155204">phy_task</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e170__20250123155204">任务描述符的物理地址。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e174__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e176__20250123155204">key</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e179__20250123155204">密钥缓冲区的指针。该缓冲区为动态分配，地址空间 DMA 可用。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e183__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e185__20250123155204">phy_key</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e188__20250123155204">密钥缓冲区的物理地址。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e192__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e194__20250123155204">iv</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e197__20250123155204">初始化向量缓冲区指针。该缓冲区动态分配，地址空间 DMA 可用。</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e200__20250123155204">该成员变量在不同的算法模式中，含义有所不同。CBC 模式中为初始化向量。CTR 模式中为初始计数值，同时也用于保存 CE
|
|||
|
|
输出的下一个数据块的计数值。XTS 中为 TWEAK 值。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e205__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e207__20250123155204">phy_iv</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e210__20250123155204">初始化向量缓冲区的物理地址。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e214__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e216__20250123155204">backup_ivs</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e219__20250123155204">用于 CBC 算法模式的解密情景。解密时，需要保存不同数据段的最后一个密文块，作为下一个数据段的初始化向量。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e223__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e225__20250123155204">backup_phy_ivs</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e228__20250123155204">对应的物理地址。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e232__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e234__20250123155204">next_iv</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e237__20250123155204">用于 CBC 算法模式加密的场景。在 CBC 算法模式的加密处理时，如果一个请求中有多个数据块串行处理，使用 next_iv
|
|||
|
|
指向当前数据块的最后一个密文块的地址，以作为下一个数据块的初始化向量输入。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e241__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e243__20250123155204">ssram_addr</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e246__20250123155204">当需要使用安全 SRAM 时，用于保存申请到的安全 SRAM 地址。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e250__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e252__20250123155204">mode</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e255__20250123155204">算法和模式标记变量，用于标记当前请求所使用的算法和模式等信息。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e260__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e262__20250123155204">src_cpy_buf</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e265__20250123155204">输入数据的工作缓冲区。当前请求的输入数据缓冲区不满足 CE 硬件的使用要求时，需要分配物理连续的工作缓冲区。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e269__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e271__20250123155204">src_phy_buf</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e274__20250123155204">输入数据的工作缓冲区物理地址。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e278__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e280__20250123155204">dst_cpy_buf</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e283__20250123155204">输出数据的工作缓冲区。当前输出数据缓冲区不满足 CE 硬件的使用要求时，需要分配物理连续的工作缓冲区。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e287__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e289__20250123155204">dst_phy_buf</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e292__20250123155204">输出数据缓冲区的物理地址。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e296__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e298__20250123155204">src_map_sg</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e301__20250123155204">输入 sg list 是否执行了 map 的标记。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e305__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e307__20250123155204">dst_map_sg</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e310__20250123155204">输出 sg list 是否执行了 map 的标记。</p>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
</section>
|
|||
|
|
<section class="- topic/section section" id="ce_data_structure_design__section_s5w_fby_21c" data-ofbid="ce_data_structure_design__section_s5w_fby_21c"><h2 class="- topic/title title sectiontitle">非对称密钥算法</h2>
|
|||
|
|
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ce_data_structure_design__codeblock_zyk_3by_21c" data-ofbid="ce_data_structure_design__codeblock_zyk_3by_21c"><code><strong class="hl-keyword">struct</strong> aic_akcipher_tfm_ctx {
|
|||
|
|
<strong class="hl-keyword">struct</strong> crypto_engine_ctx enginectx;
|
|||
|
|
<strong class="hl-keyword">struct</strong> aic_crypto_dev *ce;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> *n;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> *e;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> *d;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> n_sz;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> e_sz;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> d_sz;
|
|||
|
|
};</code></pre>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e324__20250123155204">aic_akcipher_tfm_ctx 是非对称密钥算法实例所对应的上下文。</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e327__20250123155204">其中：</p>
|
|||
|
|
<ul class="- topic/ul ul" id="ce_data_structure_design__ul_v5w_fby_21c" data-ofbid="ce_data_structure_design__ul_v5w_fby_21c">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e332__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e334__20250123155204">enginectx</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e337__20250123155204">crypto_engine 的上下文，用于配置该算法的回调处理函数。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e341__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e343__20250123155204">n</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e346__20250123155204">RSA 密钥中的 modulus。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e350__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e352__20250123155204">e</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e355__20250123155204">RSA 密钥中的公钥指数。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e359__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e361__20250123155204">d</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e364__20250123155204">RSA 密钥中的私钥指数。</p>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
<div class="- topic/p p" data-ofbid="d71310e370__20250123155204"><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ce_data_structure_design__codeblock_ydb_3by_21c" data-ofbid="ce_data_structure_design__codeblock_ydb_3by_21c"><code><strong class="hl-keyword">struct</strong> aic_akcipher_reqctx {
|
|||
|
|
<strong class="hl-keyword">struct</strong> task_desc *task;
|
|||
|
|
dma_addr_t phy_task;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> *wbuf;
|
|||
|
|
dma_addr_t phy_wbuf;
|
|||
|
|
dma_addr_t ssram_addr;
|
|||
|
|
<strong class="hl-keyword">int</strong> tasklen;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> wbuf_size;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong> flags;
|
|||
|
|
};</code></pre>aic_akcipher_reqctx 是每一个数据请求所对应的上下文，在每一个 struct akcipher_request
|
|||
|
|
实例化时自动创建。</div>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e375__20250123155204">其中：</p>
|
|||
|
|
<ul class="- topic/ul ul" id="ce_data_structure_design__ul_y5w_fby_21c" data-ofbid="ce_data_structure_design__ul_y5w_fby_21c">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e380__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e382__20250123155204">task</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e385__20250123155204">CE 任务描述符指针。任务描述符所使用的空间是动态分配的空间，需要相关指针信息保存，以便完成时释放。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e389__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e391__20250123155204">phy_task</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e394__20250123155204">任务描述符的物理地址。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e398__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e400__20250123155204">wbuf</p>
|
|||
|
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<p class="- topic/p p" data-ofbid="d71310e403__20250123155204">工作缓冲区。</p>
|
|||
|
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</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e407__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e409__20250123155204">phy_wbuf</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e412__20250123155204">工作缓冲区的物理地址。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e416__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e418__20250123155204">ssram_addr</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e421__20250123155204">当需要使用安全 SRAM 时，用于保存申请到的安全 SRAM 地址。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e426__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e428__20250123155204">flags</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e431__20250123155204">算法和模式标记变量，用于标记当前请求所使用的算法和模式等信息。</p>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
</section>
|
|||
|
|
<section class="- topic/section section" id="ce_data_structure_design__section_z5w_fby_21c" data-ofbid="ce_data_structure_design__section_z5w_fby_21c"><h2 class="- topic/title title sectiontitle">消息摘要算法</h2>
|
|||
|
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|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ce_data_structure_design__codeblock_yzh_hby_21c" data-ofbid="ce_data_structure_design__codeblock_yzh_hby_21c"><code><strong class="hl-keyword">struct</strong> aic_hash_tfm_ctx {
|
|||
|
|
<strong class="hl-keyword">struct</strong> crypto_engine_ctx enginectx;
|
|||
|
|
<strong class="hl-keyword">struct</strong> aic_crypto_dev *ce;
|
|||
|
|
bool hmac;
|
|||
|
|
};</code></pre>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e445__20250123155204">aic_hash_tfm_ctx 是消息摘要算法实例所对应的上下文。</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e448__20250123155204">其中：</p>
|
|||
|
|
<ul class="- topic/ul ul" id="ce_data_structure_design__ul_cvw_fby_21c" data-ofbid="ce_data_structure_design__ul_cvw_fby_21c">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e453__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e455__20250123155204">enginectx</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e458__20250123155204">crypto_engine 的上下文，用于配置该算法的回调处理函数。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e462__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e464__20250123155204">hmac</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e467__20250123155204">用于标记当前算法是否为 HMAC 类算法。</p>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ce_data_structure_design__codeblock_hcr_gby_21c" data-ofbid="ce_data_structure_design__codeblock_hcr_gby_21c"><code><strong class="hl-keyword">struct</strong> aic_hash_reqctx {
|
|||
|
|
<strong class="hl-keyword">struct</strong> task_desc *task;
|
|||
|
|
dma_addr_t phy_task;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> *ivbuf;
|
|||
|
|
dma_addr_t phy_ivbuf;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> *total_bitlen;
|
|||
|
|
dma_addr_t phy_total_bitlen;
|
|||
|
|
<strong class="hl-keyword">void</strong> *src_cpy_buf;
|
|||
|
|
dma_addr_t src_phy_buf;
|
|||
|
|
<strong class="hl-keyword">int</strong> tasklen;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> digest_size;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong> flags;
|
|||
|
|
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">char</strong> digest[CE_MAX_DIGEST_SIZE];
|
|||
|
|
bool src_map_sg;
|
|||
|
|
};</code></pre>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e476__20250123155204">aic_hash_reqctx 是每一个数据请求所对应的上下文，在每一个 struct ahash_request 实例化时自动创建。</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e479__20250123155204">其中：</p>
|
|||
|
|
<ul class="- topic/ul ul" id="ce_data_structure_design__ul_fvw_fby_21c" data-ofbid="ce_data_structure_design__ul_fvw_fby_21c">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e484__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e486__20250123155204">task</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e489__20250123155204">CE 任务描述符指针。任务描述符所使用的空间是动态分配的空间，需要相关指针信息保存，以便完成时释放。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e493__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e495__20250123155204">phy_task</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e498__20250123155204">任务描述符的物理地址。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e502__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e504__20250123155204">total_bitlen</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e507__20250123155204">当前请求处理的数据总长度，单位 bit。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e511__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e513__20250123155204">phy_total_bitlen</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e516__20250123155204">保存数据总长度的变量的物理地址。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e520__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e522__20250123155204">src_cpy_buf</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e525__20250123155204">输入数据的工作缓冲区。当前请求的输入数据缓冲区不满足 CE 硬件的使用要求时，需要分配物理连续的工作缓冲区。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e530__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e532__20250123155204">src_phy_buf</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e535__20250123155204">输入数据的工作缓冲区物理地址。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e539__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e541__20250123155204">flags</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e544__20250123155204">算法和模式标记变量，用于标记当前请求所使用的算法和模式等信息。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e548__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e550__20250123155204">digest</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e553__20250123155204">用于保存当前一笔请求数据的摘要结果。当有连续多个请求的数据需要处理时，同时作为下一个请求的初始化向量输入。</p>
|
|||
|
|
</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d71310e557__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e559__20250123155204">src_map_sg</p>
|
|||
|
|
<p class="- topic/p p" data-ofbid="d71310e562__20250123155204">输入 sg list 是否执行了 map 的标记。</p>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
</section>
|
|||
|
|
</div>
|
|||
|
|
</article></main></div>
|
|||
|
|
|
|||
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|
|||
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|
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|
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|
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<nav role="navigation" id="wh_topic_toc" aria-label="On this page" class="col-lg-2 d-none d-lg-block navbar d-print-none">
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|
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|
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|
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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_data_structure_design__section_g5w_fby_21c" data-tocid="ce_data_structure_design__section_g5w_fby_21c">设备结构体</a></div></li><li class="section-item"><div class="section-title"><a href="#ce_data_structure_design__section_k5w_fby_21c" data-tocid="ce_data_structure_design__section_k5w_fby_21c">对称密钥算法</a></div></li><li class="section-item"><div class="section-title"><a href="#ce_data_structure_design__section_s5w_fby_21c" data-tocid="ce_data_structure_design__section_s5w_fby_21c">非对称密钥算法</a></div></li><li class="section-item"><div class="section-title"><a href="#ce_data_structure_design__section_z5w_fby_21c" data-tocid="ce_data_structure_design__section_z5w_fby_21c">消息摘要算法</a></div></li></ul></div>
|
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<footer class="navbar navbar-default wh_footer">
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<div class="generation_time">
|
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Update Time: 2025-01-23
|
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