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HTML
64 lines
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HTML
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<link rel="icon" href="/bilibili-API-collect/logo2.jpg"><title>设备各类标识算法(APP 端) | BAC Document</title><meta name="description" content="社区开源的第三方哔哩哔哩 API 文档">
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target="_blank"><!--[--><!--[--><!--]--><!--]-->Telegram交流群（Github Bot推送）<!--[--><!--[--><!--]--><!--]--></a></li><!--]--></ul></div></div><div class="vp-navbar-item"><a class="auto-link external-link" href="https://github.com/SocialSisterYi/bilibili-API-collect" aria-label="GitHub" rel="noopener noreferrer" target="_blank"><!--[--><!--[--><!--]--><!--]-->GitHub<!--[--><!--[--><!--]--><!--]--></a></div><!--]--></nav><!--[--><!--]--><ul class="vp-sidebar-items"><!--[--><li><p tabindex="0" class="vp-sidebar-item vp-sidebar-heading">设备各类标识算法(APP 端) <!----></p><!----></li><!--]--></ul><!--[--><!--]--></aside><!--]--><!--[--><main class="vp-page"><!--[--><!--]--><div vp-content><!--[--><!--]--><div id="content"><h1 id="设备各类标识算法-app-端" tabindex="-1"><a class="header-anchor" href="#设备各类标识算法-app-端"><span>设备各类标识算法(APP 端)</span></a></h1><h2 id="设备唯一标识-buvid" tabindex="-1"><a class="header-anchor" href="#设备唯一标识-buvid"><span>设备唯一标识 BUVID</span></a></h2><p>注意区分于 Web 端的 <a class="route-link" href="/bilibili-API-collect/docs/misc/buvid3_4.html">buvid3, buvid4</a>.</p><p>BUVID 在 APP 首次安装于某设备, 且首次启动时生成.</p><p>APP 首次(即每次安装后)启动, 会向云端发送本机各类设备特征, 含 <code>AndroidId</code>, <code>DrmId</code> 等, 请求是否有匹配的 BUVID, 有就使用云端的, 否则使用本地生成的.</p><p>APP 请求是否有匹配的 BUVID 发送的本机各类设备特征包括(但不限于):</p><ul><li><code>AndroidID</code></li><li><code>DrmId</code></li><li><code>IMEI</code></li><li><code>OAID</code></li><li>手机网卡 <code>MAC</code></li><li>设备品牌</li><li>设备 Model</li><li>本地生成的 BUVID</li></ul><h3 id="生成方法" tabindex="-1"><a class="header-anchor" href="#生成方法"><span>生成方法</span></a></h3><ol><li><p>选定设备特征码, 可以是 <code>AndroidID</code>, <code>DrmId</code>, 手机网卡 <code>MAC</code> 等. 记为 <code>ID</code>. 特别地, <code>MAC</code> 应当去掉 <code>:</code>, <code>GUID</code>(即 UUID) 应当去掉 <code>-</code>.</p></li><li><p>计算 <code>ID</code> 的 MD5. 记为 <code>ID_MD5</code>.</p></li><li><p>从 <code>ID_MD5</code> 抽取第 3, 13, 23 位, 失败就默认为 000, 记为 <code>ID_E</code>.</p></li><li><p>根据选定的设备特征码类型确定 BUVID Prefix, 见附录. 记为 <code>BUVID_Prefix</code>.</p></li><li><p>按 <code>{BUVID_Prefix}{ID_E}{ID_MD5}</code> 的顺序连接起来, 共37位(2+3+32). 结果应当为大写.</p></li></ol><h3 id="demo" tabindex="-1"><a class="header-anchor" href="#demo"><span>Demo</span></a></h3><h4 id="rust" tabindex="-1"><a class="header-anchor" href="#rust"><span>Rust</span></a></h4><p>代码及测试样例见 <a href="https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=40b5906cf3838a60efa83fa368b15147" target="_blank" rel="noopener noreferrer">Rust Playground</a>.</p><h2 id="设备指纹-fp-fp-local-fp-remote" tabindex="-1"><a class="header-anchor" href="#设备指纹-fp-fp-local-fp-remote"><span>设备指纹 fp (fp_local, fp_remote)</span></a></h2><p>用于请求账户相关 REST API, 及 gRPC Metadata 生成.</p><p>在请求头中, <code>fp_local</code> 和 <code>fp_remote</code> 设置为同一值即可, 暂不清楚区别.</p><h3 id="生成方法-1" tabindex="-1"><a class="header-anchor" href="#生成方法-1"><span>生成方法</span></a></h3><ol><li><p>获取 BUVID. 此处一般使用 XU Prefix 的 BUVID.</p></li><li><p>获取设备 Model(<code>Build.MODEL</code>), 如 <code>NOH-AN01</code>.</p></li><li><p>获取手机无线电固件版本号(<code>Build.getRadioVersion()</code>), 失败则留空. 如 <code>21C20B686S000C000,21C20B686S000C000</code>.</p></li><li><p>按前述顺序拼接字符串, 计算得 MD5.</p></li><li><p>获取年月日, 格式 <code>yyyyMMddhhmmss</code>, 拼接到 4 得到的字符串后.</p></li><li><p>生成 16 位随机字符串, CharSet 为 <code>0123456789abcdef</code>, 拼接到 5 得到的字符串后, 记为 <code>fp_raw</code>.</p></li><li><p>计算得到一个特殊字符串, 拼接到 <code>fp_raw</code> 后, 即得到最终的 <code>fp</code>, 特殊字符串算法见下:</p></li></ol><div class="language-rust line-numbers-mode" data-highlighter="shiki" data-ext="rust" style="background-color:#1E1E1E;color:#D4D4D4;"><pre class="shiki dark-plus vp-code"><code class="language-rust"><span class="line"><span style="color:#569CD6;">let</span><span style="color:#569CD6;"> mut</span><span style="color:#9CDCFE;"> veri_code</span><span style="color:#D4D4D4;"> = </span><span style="color:#B5CEA8;">0</span><span style="color:#D4D4D4;">;</span></span>
|
||
<span class="line"><span style="color:#6A9955;">// 有点像 HEX 的操作</span></span>
|
||
<span class="line"><span style="color:#569CD6;">let</span><span style="color:#9CDCFE;"> fp_raw_sub_str</span><span style="color:#D4D4D4;"> = </span><span style="color:#9CDCFE;">fp_raw</span></span>
|
||
<span class="line"><span style="color:#D4D4D4;"> .</span><span style="color:#DCDCAA;">as_bytes</span><span style="color:#D4D4D4;">() </span><span style="color:#6A9955;">// 将字符串 fp_raw 转换为字节数组</span></span>
|
||
<span class="line"><span style="color:#D4D4D4;"> .</span><span style="color:#DCDCAA;">chunks</span><span style="color:#D4D4D4;">(</span><span style="color:#B5CEA8;">2</span><span style="color:#D4D4D4;">) </span><span style="color:#6A9955;">// 按每两个字节一组进行切分</span></span>
|
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<span class="line"><span style="color:#D4D4D4;"> .</span><span style="color:#DCDCAA;">map</span><span style="color:#D4D4D4;">(|</span><span style="color:#9CDCFE;">s</span><span style="color:#D4D4D4;">| </span><span style="color:#569CD6;">unsafe</span><span style="color:#D4D4D4;"> { ::</span><span style="color:#4EC9B0;">std</span><span style="color:#D4D4D4;">::</span><span style="color:#4EC9B0;">str</span><span style="color:#D4D4D4;">::</span><span style="color:#DCDCAA;">from_utf8_unchecked</span><span style="color:#D4D4D4;">(</span><span style="color:#9CDCFE;">s</span><span style="color:#D4D4D4;">) }) </span><span style="color:#6A9955;">// 对每一组解析作为 UTF-8 字符串</span></span>
|
||
<span class="line"><span style="color:#D4D4D4;"> .</span><span style="color:#DCDCAA;">collect</span><span style="color:#D4D4D4;">::<</span><span style="color:#4EC9B0;">Vec</span><span style="color:#D4D4D4;"><</span><span style="color:#9CDCFE;">_</span><span style="color:#D4D4D4;">>>(); </span><span style="color:#6A9955;">// 将结果收集到 Vec 中</span></span>
|
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<span class="line"><span style="color:#6A9955;">// 如果 fp_raw 的长度小于 62, 则向下取偶数减半作为循环终止条件, 否则终止条件为31</span></span>
|
||
<span class="line"><span style="color:#C586C0;">for</span><span style="color:#9CDCFE;"> i</span><span style="color:#569CD6;"> in</span><span style="color:#B5CEA8;"> 0</span><span style="color:#D4D4D4;">..({</span></span>
|
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<span class="line"><span style="color:#C586C0;"> if</span><span style="color:#9CDCFE;"> fp_raw</span><span style="color:#D4D4D4;">.</span><span style="color:#DCDCAA;">len</span><span style="color:#D4D4D4;">() < </span><span style="color:#B5CEA8;">62</span><span style="color:#D4D4D4;"> {</span></span>
|
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<span class="line"><span style="color:#9CDCFE;"> fp_raw</span><span style="color:#D4D4D4;">.</span><span style="color:#DCDCAA;">len</span><span style="color:#D4D4D4;">() - </span><span style="color:#9CDCFE;">fp_raw</span><span style="color:#D4D4D4;">.</span><span style="color:#DCDCAA;">len</span><span style="color:#D4D4D4;">() % </span><span style="color:#B5CEA8;">2</span><span style="color:#6A9955;"> // 取偶数</span></span>
|
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<span class="line"><span style="color:#D4D4D4;"> } </span><span style="color:#C586C0;">else</span><span style="color:#D4D4D4;"> {</span></span>
|
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<span class="line"><span style="color:#B5CEA8;"> 62</span></span>
|
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<span class="line"><span style="color:#D4D4D4;"> }</span></span>
|
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<span class="line"><span style="color:#D4D4D4;">} / </span><span style="color:#B5CEA8;">2</span><span style="color:#D4D4D4;">)</span></span>
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<span class="line"><span style="color:#D4D4D4;">{</span></span>
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<span class="line"><span style="color:#6A9955;"> // 将每组字符串转换为对应的 16 进制整数, 将转换得到的整数加到 veri_code 上. </span></span>
|
||
<span class="line"><span style="color:#9CDCFE;"> veri_code</span><span style="color:#D4D4D4;"> += </span><span style="color:#4EC9B0;">i32</span><span style="color:#D4D4D4;">::</span><span style="color:#DCDCAA;">from_str_radix</span><span style="color:#D4D4D4;">(</span><span style="color:#9CDCFE;">fp_raw_sub_str</span><span style="color:#D4D4D4;">[</span><span style="color:#9CDCFE;">i</span><span style="color:#D4D4D4;">], </span><span style="color:#B5CEA8;">16</span><span style="color:#D4D4D4;">).</span><span style="color:#DCDCAA;">unwrap_or</span><span style="color:#D4D4D4;">(</span><span style="color:#B5CEA8;">0</span><span style="color:#D4D4D4;">);</span></span>
|
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<span class="line"><span style="color:#D4D4D4;">}</span></span>
|
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<span class="line"><span style="color:#6A9955;">// 最后将 veri_code 对 256 取余, 格式化为两位的 16 进制字符串</span></span>
|
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<span class="line"><span style="color:#569CD6;">let</span><span style="color:#9CDCFE;"> veri_code</span><span style="color:#D4D4D4;"> = </span><span style="color:#DCDCAA;">format!</span><span style="color:#D4D4D4;">(</span><span style="color:#CE9178;">"{:0>2x}"</span><span style="color:#D4D4D4;">, </span><span style="color:#9CDCFE;">veri_code</span><span style="color:#D4D4D4;"> % </span><span style="color:#B5CEA8;">256</span><span style="color:#D4D4D4;">);</span></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h3 id="demo-1" tabindex="-1"><a class="header-anchor" href="#demo-1"><span>Demo</span></a></h3><h4 id="rust-1" tabindex="-1"><a class="header-anchor" href="#rust-1"><span>Rust</span></a></h4><p>代码及测试样例见 <a href="https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=40b5906cf3838a60efa83fa368b15147" target="_blank" rel="noopener noreferrer">Rust Playground</a>.</p><h2 id="附录" tabindex="-1"><a class="header-anchor" href="#附录"><span>附录</span></a></h2><h3 id="buvid-prefix" tabindex="-1"><a class="header-anchor" href="#buvid-prefix"><span>BUVID Prefix</span></a></h3><table><thead><tr><th style="text-align:center;">设备特征码</th><th style="text-align:center;">BUVID Prefix</th><th style="text-align:center;">备注</th></tr></thead><tbody><tr><td style="text-align:center;"><code>AndroidID</code></td><td style="text-align:center;"><code>XX</code></td><td style="text-align:center;"></td></tr><tr><td style="text-align:center;"><code>DrmId</code></td><td style="text-align:center;"><code>XU</code></td><td style="text-align:center;"></td></tr><tr><td style="text-align:center;"><code>IMEI</code></td><td style="text-align:center;"><code>XZ</code></td><td style="text-align:center;">已弃用</td></tr><tr><td style="text-align:center;"><code>GUID</code></td><td style="text-align:center;"><code>XW</code></td><td style="text-align:center;">已弃用</td></tr><tr><td style="text-align:center;"><code>MAC</code></td><td style="text-align:center;"><code>XY</code></td><td style="text-align:center;"></td></tr><tr><td style="text-align:center;"><code>GoogleId</code></td><td style="text-align:center;"><code>XG</code></td><td style="text-align:center;">东南亚版本</td></tr><tr><td style="text-align:center;"><code>FacebookId</code></td><td style="text-align:center;"><code>XF</code></td><td style="text-align:center;">东南亚版本</td></tr></tbody></table></div><!--[--><!--]--></div><footer class="vp-page-meta"><div class="vp-meta-item edit-link"><a class="auto-link external-link label" href="https://github.com/SocialSisterYi/bilibili-API-collect/edit/master/docs/misc/device_identity.md" aria-label="在 GitHub 上编辑此页" rel="noopener noreferrer" target="_blank"><!--[--><!--[--><svg class="edit-icon" viewbox="0 0 1024 1024"><g fill="currentColor"><path d="M430.818 653.65a60.46 60.46 0 0 1-50.96-93.281l71.69-114.012 7.773-10.365L816.038 80.138A60.46 60.46 0 0 1 859.225 62a60.46 60.46 0 0 1 43.186 18.138l43.186 43.186a60.46 60.46 0 0 1 0 86.373L588.879 565.55l-8.637 8.637-117.466 68.234a60.46 60.46 0 0 1-31.958 11.229z"></path><path d="M728.802 962H252.891A190.883 190.883 0 0 1 62.008 771.98V296.934a190.883 190.883 0 0 1 190.883-192.61h267.754a60.46 60.46 0 0 1 0 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