</noscript> <div class="dialog-off-canvas-main-canvas" data-off-canvas-main-canvas=""> <div class="gva-body-wrapper default"> <div class="body-page gva-body-page"> <header class="header-default header-one" id="header"> <a class="visually-hidden focusable content-sticky" href="https://www.entrust.cn/resources/learn/internet-of-things-iot#page-main-content"> 跳转至主内容 </a> <div class="topbar top-page-announcement-banner"> <div class="region region__topbar"> <div class="block block-block-content block-block-content99ab3eb0-c475-4eb6-ae7d-70aa867b4c74 d-none no-title top-announcement-block" id="block-notech-subtheme-topannouncementbanner"> <div class="content block-content"> <div class="field field--name-field-image field--type-entity-reference field--label-hidden field__item"><div> <div class="field field--name-field-media-image field--type-image field--label-hidden field__item"> <div class="item-image svg-image"> <img alt="响铃警报图标" loading="lazy" src="/sites/default/files/2025-07/bell-on-icon-light.svg" /> </div> </div> </div> </div> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p>加入我们的代理式 AI 信任加速器计划</p></div> <div class="field field--name-field-cta field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/accelerator">了解更多</a> </div> </div> </div> </div> </div> <div class="topbar topbar__one"> <div class="topbar__content header-default__topbar-content"> <div class="topbar__left"> </div> <div class="topbar__right"> <div class="search-one__box"> <span class="search-one__icon"><i class="fa fa-search"></i></span> <div class="search-one__content"> <div class="region region__search"> <div class="views-exposed-form block block-views block-views-exposed-filter-blockentrust-global-search-page-1 no-title facets-search-block" data-drupal-selector="views-exposed-form-entrust-global-search-page-1" id="block-notech-subtheme-exposedformentrust-global-searchpage-1"> <div class="content block-content"> <form accept-charset="UTF-8" action="https://www.entrust.cn/search" id="views-exposed-form-entrust-global-search-page-1" method="get"> <div class="js-form-item form-item js-form-type-textfield form-item-search js-form-item-search"> <input class="form-text" data-drupal-selector="edit-search" id="edit-search" maxlength="128" name="search" placeholder="搜索" size="30" type="text" value=""/> </div> <div class="form-actions js-form-wrapper form-wrapper" data-drupal-selector="edit-actions" id="edit-actions--3"><input class="button js-form-submit form-submit" data-drupal-selector="edit-submit-entrust-global-search" id="edit-submit-entrust-global-search" type="submit" value="搜索"/> </div> </form> </div> </div> </div> </div> </div> <div class="topbar__right-content"> <div class="region region__topbar-right"> <nav aria-labelledby="block-notech-subtheme-utilitymenu-menu" class="block block-menu navigation menu--utility-menu" id="block-notech-subtheme-utilitymenu"> <div class="visually-hidden block-title block-title" id="block-notech-subtheme-utilitymenu-menu"><span>实用工具菜单</span></div> <div class="block-content"> <div class="utility-menu-wrapper"> <ul class="utility-menu"> <li class="menu-item" tabindex="0"> <div class="utility-dropdown-wrapper"> <ul class="utility-dropdown"> <li class="utility-dropdown-heading">登录<button class="utility-dropdown-button" tabindex="-1" type="button"><span class="utility-dropdown-arrow"><span class="visually-hidden">列出其他操作</span></span></button> </li> <li class="utility-dropdown-link"> <a href="https://dashboard.onfido.com/users/sign_in" rel="noopener" target="_blank"> Onfido 仪表板 </a> </li> <li class="utility-dropdown-link"> <a href="https://developers.onfido.com" rel="noopener" target="_blank"> Onfido 开发人员中心 </a> </li> <li class="utility-dropdown-link"> <a href="https://account.evidos.com/Account/Login" rel="noopener" target="_blank">Signhost</a> </li> </ul> </div> </li> <li class="menu-item" tabindex="0"> <div class="utility-dropdown-wrapper"> <ul class="utility-dropdown"> <li class="utility-dropdown-heading">服务与支持<button class="utility-dropdown-button" tabindex="-1" type="button"><span class="utility-dropdown-arrow"><span class="visually-hidden">列出其他操作</span></span></button> </li> <li class="utility-dropdown-link"> <a href="https://www.entrust.cn/contact-support" rel="noopener" target="_self">联系支持</a> </li> <li class="utility-dropdown-link"> <a href="https://www.entrust.cn/support" rel="noopener" target="_self">支持资源</a> </li> </ul> </div> </li> <li class="menu-item" tabindex="0"> <div class="utility-dropdown-wrapper"> <ul class="utility-dropdown"> <li class="utility-dropdown-heading">购买<button class="utility-dropdown-button" tabindex="-1" type="button"><span class="utility-dropdown-arrow"><span class="visually-hidden">列出其他操作</span></span></button> </li> <li class="utility-dropdown-link"> <a href="https://store.entrust.com/default/issuance/supplies.html" rel="noopener" target="_blank">打印机耗材</a> </li> <li class="utility-dropdown-link"> <a href="https://cloud.entrust.net/" rel="noopener" target="_blank"> 证书服务门户网站 - 客户登录 </a> </li> </ul> </div> </li> <li class="menu-item" tabindex="0"> <div class="utility-dropdown-wrapper"> <ul class="utility-dropdown"> <li class="utility-dropdown-heading"> <a href="https://www.entrust.cn/blog" rel="noopener" tabindex="-1" target="_self">博客</a> </li> </ul> </div> </li> </ul> </div> </div> </nav> <nav aria-labelledby="block-notech-subtheme-regionselection-menu" class="block block-menu navigation menu--region-selection" id="block-notech-subtheme-regionselection"> <div class="visually-hidden block-title block-title" id="block-notech-subtheme-regionselection-menu"><span>区域选择</span></div> <div class="block-content"> <div class="dropbutton-wrapper dropbutton-multiple" data-drupal-ajax-container="" data-once="dropbutton"> <div class="dropbutton-widget"> <ul class="dropdown-language-item dropbutton"> <li class="dropbutton-action"> <a class="language-link __ptNoRemap" href="https://www.entrust.com/">English</a> </li> <li class="dropbutton-toggle"><button tabindex="0" type="button"><span class="dropbutton-arrow"><span class="visually-hidden">列出其他操作</span></span></button></li> <li class="dropbutton-action"> <a class="language-link __ptNoRemap" href="https://www.entrust.cn/"> 中文</a> </li> <li class="dropbutton-action"> <a class="language-link __ptNoRemap" href="https://www.entrust.com/pt/">Português</a> </li> <li class="dropbutton-action"> <a class="language-link __ptNoRemap" href="https://www.entrust.com/fr/">Français</a> </li> <li class="dropbutton-action"> <a class="language-link __ptNoRemap" href="https://www.entrust.com/de/">Deutsch</a> </li> <li class="dropbutton-action"> <a class="language-link __ptNoRemap" href="https://www.entrust.com/ko/">한국어</a> </li> <li class="dropbutton-action"> <a class="language-link __ptNoRemap" href="https://www.entrust.com/es/">Español</a> </li> <li class="dropbutton-action"> <a class="language-link __ptNoRemap" href="https://www.entrust.com/it/"> Italiano</a> </li> <li class="dropbutton-action"> <a class="language-link __ptNoRemap" href="https://www.entrust.com/ja/">日本語</a> </li> </ul> </div> </div> </div> </nav> </div> </div> <a class"cn-header-telephone" href="tel:075533043050" target="_blank"><span style="display:block; line-height: 1.2;">咨询电话</span><span style="font-size: 12px;">075533043050</span></a></div> </div> </div> <div class="header-one__main gv-sticky-menu"> <div class="header-one__content"> <div class="header-one__main-inner p-relative"> <div class="header-one__left"> <div class="header-one__branding"> <div class="region region__branding"> <a class="site-branding-logo" href="https://www.entrust.cn/" rel="home" title="主页"> <img alt="主页" class="logo-site" height="75" src="/sites/default/files/logo-entrust-tagline270x75.png" width="270" /> </a> </div> </div> <div class="header-one__main-menu"> <div class="gva-offcanvas-mobile"> <div class="close-offcanvas hidden"><i class="fa fa-times"></i></div> <div class="main-menu-inner"> <div class="region region__main-menu"> <nav aria-labelledby="block-mainnavigation-menu" class="block block-menu navigation menu--main" id="block-mainnavigation"> <div class="visually-hidden block-title block-title" id="block-mainnavigation-menu"><span>主导航</span></div> <div class="block-content"> <div class="gva-navigation menu--extras--main"> <ul class="gva_menu gva_menu_main" data-region="main_menu"> <li class="menu-item"> <a data-link_id="link-1816626926" href="https://www.entrust.cn/solutions"> <span>解决方案</span><span class="icaret nav-plus fas fa-chevron-down"></span> </a> <ul class="menu sub-menu"> <div> <div class="field field--name-field-column-of-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default ent-field-title-arrow-right"> <div class="field field--name-field-title field--type-string field--label-hidden field__item"><a href="https://www.entrust.cn/solutions/industries">按行业分类</a></div> <div class="field field--name-field-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/solutions/industries/financial">金融</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/solutions/industries/enterprise">企业</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/solutions/industries/government">政府</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/solutions/industries/healthcare">医疗保健</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/solutions/industries/telecom">电信</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/solutions/industries/education">教育</a> </div> </div> </div> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default ent-field-menu-links-left-border"> <div class="field field--name-field-title field--type-string field--label-hidden field__item">按用例</div> <div class="field field--name-field-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/solutions/ai-security">AI 安全</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/solutions/identity-verification">身份验证</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/solutions/card-id-issuance">证卡和身份证卡签发</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/solutions/authentication">身份认证</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/solutions/key-certificate-lifecycle-management">密钥和证书生命周期管理</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/solutions/post-quantum-cryptography">后量子密码学</a> </div> </div> </div> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default ent-field-menu-links-left-border ent-menu-background-color-f8f8fa ent-menu-column-width-50"> <div class="nav-col-with-media"> <div class="nav-col-with-media-image"> <a href="https://www.entrust.cn/identity-centric-security"> <div class="field field--name-field-image field--type-entity-reference field--label-hidden field__item"><div> <div class="field field--name-field-media-image field--type-image field--label-hidden field__item"> <picture class="item-image"> <source height="737" media="(min-width: 993px)" srcset="/sites/default/files/styles/image_900/public/2026-03/entrust-identity-lifecycle-graphic-nav.png?itok=dFdWCoZW 1x, https://www.entrust.com/sites/default/files/styles/image_1800/public/2026-03/entrust-identity-lifecycle-graphic-nav.png" type="image/png" width="640"></source> <source height="737" media="(min-width: 640px)" srcset="/sites/default/files/styles/image_750/public/2026-03/entrust-identity-lifecycle-graphic-nav.png?itok=CLsQHIxz 1x, https://www.entrust.com/sites/default/files/styles/image_1500/public/2026-03/entrust-identity-lifecycle-graphic-nav.png" type="image/png" width="640"></source> <source height="495" media="(min-width: 0px)" srcset="/sites/default/files/styles/image_430/public/2026-03/entrust-identity-lifecycle-graphic-nav.png?itok=N2d-YuiO 1x, https://www.entrust.com/sites/default/files/styles/image_640/public/2026-03/entrust-identity-lifecycle-graphic-nav.png" type="image/png" width="430"></source> <img alt="Entrust 身份生命周期图" loading="lazy" src="/sites/default/files/2026-03/entrust-identity-lifecycle-graphic-nav.png" /> </picture> </div> </div> </div> </a> </div> <div class="nav-col-with-media-description"> <div class="field field--name-field-description-title field--type-string field--label-hidden field__item">打击欺诈和网络威胁</div> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p>通过以身份为中心且可保护人员、设备和数据的全面安全措施，在关键时刻做到万无一失。 <a class="arrow-link" href="https://www.entrust.cn/identity-centric-security">了解更多</a></p></div> </div> </div> </div> </div> </div> </div> <div class="menu-cta"> <div class="field field--name-field-cta field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/solutions">查看所有解决方案</a></div> </div> </ul> </li> <li class="menu-item"> <a data-link_id="link-708071899" href="https://www.entrust.cn/products"> <span>产品</span><span class="icaret nav-plus fas fa-chevron-down"></span> </a> <ul class="menu sub-menu"> <div> <div class="field field--name-field-column-of-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default"> <div class="field field--name-field-title field--type-string field--label-hidden field__item"> 发卡</div> <div class="field field--name-field-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/products/issuance-systems/central">集中发卡</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/products/issuance-systems/instant/financial-card">金融即时发卡</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/products/issuance-systems/instant/id-card">即时发卡</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/products/digital-card-solution">数字证卡解决方案</a> </div> </div> </div> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default ent-field-menu-links-left-border"> <div class="field field--name-field-title field--type-string field--label-hidden field__item"> 身份安全 </div> <div class="field field--name-field-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/products/identity-verification">身份验证</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/products/iam">身份和门禁管理 (IAM)</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/products/electronic-digital-signing">电子和数字签名</a></div> </div> </div> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default ent-field-menu-links-left-border"> <div class="field field--name-field-title field--type-string field--label-hidden field__item">数据安全</div> <div class="field field--name-field-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/products/hsm">硬件加密模块</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/products/cryptographic-security-platform">加密安全平台</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/products/pki">公钥基础设施 (PKI)</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/products/pki/certificate-hub">证书管理</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/products/key-management">密钥和机密管理</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/products/digital-signing-infrastructure">数字签名基础设施</a></div> </div> </div> </div> </div> </div> </div> </div> <div class="menu-cta"> <div class="field field--name-field-cta field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/products">查看所有产品</a></div> </div> </ul> </li> <li class="menu-item"> <a data-link_id="link-691185526" href="https://www.entrust.cn/resources"> <span>资源</span><span class="icaret nav-plus fas fa-chevron-down"></span> </a> <ul class="menu sub-menu"> <div> <div class="field field--name-field-column-of-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default"> <div class="field field--name-field-title field--type-string field--label-hidden field__item">互动</div> <div class="field field--name-field-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/blog">博客</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/resources/learn">了解</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/resources/events">活动</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/resources/webinars">网络研讨会</a> </div> </div> </div> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default ent-field-menu-links-left-border ent-field-title-arrow-right"> <div class="field field--name-field-title field--type-string field--label-hidden field__item"><a href="https://www.entrust.cn/resources">资源中心</a></div> <div class="field field--name-field-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/resources/identity-thread/podcasts">博客</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/resources/type/video-2401">视频</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/resources/case-studies">个案研究</a></div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/resources/type/report-2366">报告</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/resources/type/support-1251">产品支持</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/knowledgebase">知识库系统</a></div> </div> </div> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default ent-field-menu-links-left-border ent-field-title-arrow-right ent-menu-background-color-f8f8fa ent-menu-column-width-50"> <div class="field field--name-field-title field--type-string field--label-hidden field__item"><a href="https://www.entrust.cn/resources/identity-thread">获取以身份为中心的安全洞察</a></div> <div class="nav-col-with-media"> <div class="nav-col-with-media-image"> <a href="https://www.entrust.cn/resources/identity-thread"> <div class="field field--name-field-image field--type-entity-reference field--label-hidden field__item"><div> <div class="field field--name-field-media-image field--type-image field--label-hidden field__item"> <picture class="item-image"> <source height="140" media="(min-width: 993px)" srcset="/sites/default/files/styles/image_900/public/2026-02/identity-thread-main-nav-image-140.png?itok=CRJjc6UD 1x, https://www.entrust.com/sites/default/files/styles/image_1800/public/2026-02/identity-thread-main-nav-image-140.png" type="image/png" width="140"></source> <source height="140" media="(min-width: 640px)" srcset="/sites/default/files/styles/image_750/public/2026-02/identity-thread-main-nav-image-140.png?itok=iOKg44pb 1x, https://www.entrust.com/sites/default/files/styles/image_1500/public/2026-02/identity-thread-main-nav-image-140.png" type="image/png" width="140"></source> <source height="140" media="(min-width: 0px)" srcset="/sites/default/files/styles/image_430/public/2026-02/identity-thread-main-nav-image-140.png?itok=Qk80rL-N 1x, https://www.entrust.com/sites/default/files/styles/image_640/public/2026-02/identity-thread-main-nav-image-140.png" type="image/png" width="140"></source> <img alt="The Identity Thread 主导航图片" loading="lazy" src="/sites/default/files/2026-02/identity-thread-main-nav-image-140.png" /> </picture> </div> </div> </div> </a> </div> <div class="nav-col-with-media-description"> <div class="field field--name-field-description-title field--type-string field--label-hidden field__item">由 Entrust 提供的 The Identity Thread</div> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p>探索身份安全中的主线。 访问充满专家见解的<a href="https://www.entrust.cn/resources/identity-thread/podcasts">播客</a>、<a href="https://www.entrust.cn/resources/identity-thread/type/video-2401">视频</a>、<a href="https://www.entrust.cn/resources/identity-thread/type/blog-1181">博客</a>和<a href="https://www.entrust.cn/resources/identity-thread/type/report-2366">报告</a>，这些资源专为像您这样的领导者和变革者设计。<br/><a class="arrow-link" href="https://www.entrust.cn/resources/identity-thread">开始探索</a></p></div> </div> </div> </div> </div> </div> </div> <div class="menu-cta"> <div class="field field--name-field-cta field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/resources">查看全部资源</a></div> </div> </ul> </li> <li class="menu-item"> <a data-link_id="link-1060243503" href="https://www.entrust.cn/partners"> <span>合作伙伴</span><span class="icaret nav-plus fas fa-chevron-down"></span> </a> <ul class="menu sub-menu"> <div> <div class="field field--name-field-column-of-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default ent-field-title-arrow-right"> <div class="field field--name-field-title field--type-string field--label-hidden field__item"><a href="https://www.entrust.cn/partners/global-partner-network">与 Entrust 合作</a></div> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p>加入我们的一项或多项合作伙伴计划，我们将帮助您提高盈利能力、扩展品牌，并锁定战略客户。</p></div> <div class="field field--name-field-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> </div> </div> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default ent-field-menu-links-left-border ent-field-title-arrow-right"> <div class="field field--name-field-title field--type-string field--label-hidden field__item"> <a href="https://www.entrust.cn/partners/directory">合作伙伴定位器</a> </div> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p>根据地点、产品、<a href="https://www.entrust.cn/partners/directory/channel">渠道</a>或<a href="https://www.entrust.cn/partners/directory/technology">技术</a>搜索合作伙伴。</p></div> <div class="field field--name-field-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> </div> </div> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default ent-field-menu-links-left-border"> <div class="field field--name-field-title field--type-string field--label-hidden field__item"> 合作伙伴登录 </div> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p>登录您最喜欢的服务，如<a href="https://partnercentral.entrust.com/">合作伙伴中心</a>和 <a href="https://trustedcare.entrust.com/">TrustedCare</a>。</p></div> <div class="field field--name-field-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> </div> </div> </div> </div> </div> </div> </div> <div class="menu-cta"></div> </ul> </li> <li class="menu-item"> <a data-link_id="link-1635833487" href="https://www.entrust.cn/company"> <span>公司</span><span class="icaret nav-plus fas fa-chevron-down"></span> </a> <ul class="menu sub-menu"> <div> <div class="field field--name-field-column-of-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default"> <div class="field field--name-field-title field--type-string field--label-hidden field__item">关于我们</div> <div class="field field--name-field-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/company#history">历史</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/company/leadership">公司领导层</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/company/careers">职业规划</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/company/culture">Entrust | 我们的企业文化正向又包容，关心弱势群体</a></div> </div> </div> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default ent-field-menu-links-left-border ent-field-title-arrow-right"> <div class="field field--name-field-title field--type-string field--label-hidden field__item"> <a href="https://www.entrust.cn/company/newsroom">新闻</a> </div> <div class="field field--name-field-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/company/newsroom/type/press-release">新闻发布</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/company/newsroom/type/news">新闻</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/company/awards-and-recognition">奖项和表彰</a></div> </div> </div> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--menu-links paragraph--view-mode--default ent-field-menu-links-left-border"> <div class="field field--name-field-title field--type-string field--label-hidden field__item">法律文件</div> <div class="field field--name-field-links field--type-entity-reference-revisions field--label-hidden field__items"> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/legal-compliance">法律与规则</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/legal-compliance/data-privacy/privacy-statement">隐私权声明</a> </div> </div> </div> <div class="field__item"> <div class="paragraph paragraph--type--link paragraph--view-mode--default"> <div class="field field--name-field-link-item field--type-link field--label-hidden field__item"> <a href="https://www.entrust.cn/legal-compliance/terms-of-use">使用条款</a> </div> </div> </div> </div> </div> </div> </div> </div> <div class="menu-cta"></div> </ul> </li> <li class="menu-item ent-white-button-cta"> <a data-link_id="link-958001990" href="https://www.entrust.cn/resources/demos-trials"> <span>演示和试用</span> </a> </li> <li class="menu-item ent-button-cta"> <a data-link_id="link-1379423668" href="https://www.entrust.cn/contact-sales"><span>联系销售客服</span></a> </li> </ul> </div> </div> </nav> </div> </div> </div> <div class="menu-bar menu-bar-mobile d-xxl-none d-xl-none" id="menu-bar"> <span class="one"></span> <span class="two"></span> <span class="three"></span> </div> </div> </div> </div> </div> </div> </header> <div class="breadcrumbs"> <div class="region region__breadcrumbs"> <div class="text-dark block block-system block-system-breadcrumb-block no-title" id="block-breadcrumbs"> <div class="content block-content"> <div class="breadcrumb-links"> <div class="content-inner"> <nav aria-labelledby="system-breadcrumb" class="breadcrumb "> <ol> <li> <a href="https://www.entrust.cn/">主页</a> <span class=""> » </span> </li> <li> <a href="https://www.entrust.cn/resources">资源中心</a> <span class=""> » </span> </li> <li> <a href="https://www.entrust.cn/resources/learn">学习</a> <span class=""> » </span> </li> <li>如何保护物联网设备</li> </ol> </nav> </div> </div> </div> </div> </div> </div> <div class="main main-page has-breadcrumb" role="main"> <div class="clearfix"></div> <div class="help gav-help-region"> <div class="container"> <div class="content-inner"> <div class="region region__help"> <div class="hidden" data-drupal-messages-fallback=""></div> </div> </div> </div> </div> <div class="clearfix"></div> <div class="clearfix"></div> <div class="content content-full" id="content"> <div class="container-full container-bg"> <div class="content-main-inner"> <div class="row"> <div class="main-content col-xl-12 col-lg-12 col-md-12 col-sm-12 col-xs-12 order-xl-2 order-lg-2 order-md-1 order-sm-1 order-xs-1 " id="page-main-content"> <div class="main-content-inner"> <div class="content-main"> <div class="region region__content"> <div class="slide-out-wrapper"> <div class="slide-out-menu"> <ul class="sticky-menu" data-region="content"> <li class="slide-menu-item"> <a href="https://www.entrust.cn/resources/demos-trials" rel="noopener" target="_self"> <span class="icon"> <div class="field field--name-field-slide-out-image field--type-entity-reference field--label-hidden field__item"><div> <div class="field field--name-field-media-image field--type-image field--label-hidden field__item"> <picture class="item-image"> <source height="32" media="(min-width: 993px)" srcset="/sites/default/files/styles/image_900/public/2025-07/pointer-hand-icon-white-solid.png?itok=EYUCjHdv 1x, https://www.entrust.com/sites/default/files/styles/image_1800/public/2025-07/pointer-hand-icon-white-solid.png" type="image/png" width="32"></source> <source height="32" media="(min-width: 640px)" srcset="/sites/default/files/styles/image_750/public/2025-07/pointer-hand-icon-white-solid.png?itok=SEoRxk_X 1x, https://www.entrust.com/sites/default/files/styles/image_1500/public/2025-07/pointer-hand-icon-white-solid.png" type="image/png" width="32"></source> <source height="32" media="(min-width: 0px)" srcset="/sites/default/files/styles/image_430/public/2025-07/pointer-hand-icon-white-solid.png?itok=KGNDv0ZL 1x, https://www.entrust.com/sites/default/files/styles/image_640/public/2025-07/pointer-hand-icon-white-solid.png" type="image/png" width="32"></source> <img alt="手形箭头图标" loading="lazy" src="/sites/default/files/2025-07/pointer-hand-icon-white-solid.png" /> </picture> </div> </div> </div> </span> <span class="text">探索演示和试用功能</span> </a> </li> <li class="slide-menu-item"> <a href="https://www.entrust.cn/resources/webinars" rel="noopener" target="_self"> <span class="icon"> <div class="field field--name-field-slide-out-image field--type-entity-reference field--label-hidden field__item"><div> <div class="field field--name-field-media-image field--type-image field--label-hidden field__item"> <picture class="item-image"> <source height="32" media="(min-width: 993px)" srcset="/sites/default/files/styles/image_900/public/2025-06/play-circle-icon-white-solid.png?itok=HmSnDeMf 1x, https://www.entrust.com/sites/default/files/styles/image_1800/public/2025-06/play-circle-icon-white-solid.png" type="image/png" width="32"></source> <source height="32" media="(min-width: 640px)" srcset="/sites/default/files/styles/image_750/public/2025-06/play-circle-icon-white-solid.png?itok=7H3NjbV2 1x, https://www.entrust.com/sites/default/files/styles/image_1500/public/2025-06/play-circle-icon-white-solid.png" type="image/png" width="32"></source> <source height="32" media="(min-width: 0px)" srcset="/sites/default/files/styles/image_430/public/2025-06/play-circle-icon-white-solid.png?itok=RJOZK4WT 1x, https://www.entrust.com/sites/default/files/styles/image_640/public/2025-06/play-circle-icon-white-solid.png" type="image/png" width="32"></source> <img alt="播放图标" loading="lazy" src="/sites/default/files/2025-06/play-circle-icon-white-solid.png" /> </picture> </div> </div> </div> </span> <span class="text">观看网络研讨会</span> </a> </li> <li class="slide-menu-item"> <a href="https://www.entrust.cn/resources/identity-thread" rel="noopener" target="_self"> <span class="icon"> <div class="field field--name-field-slide-out-image field--type-entity-reference field--label-hidden field__item"><div> <div class="field field--name-field-media-image field--type-image field--label-hidden field__item"> <picture class="item-image"> <source height="32" media="(min-width: 993px)" srcset="/sites/default/files/styles/image_900/public/2025-06/shield-lock-icon-white-solid.png?itok=fSChunhS 1x, https://www.entrust.com/sites/default/files/styles/image_1800/public/2025-06/shield-lock-icon-white-solid.png" type="image/png" width="31"></source> <source height="32" media="(min-width: 640px)" srcset="/sites/default/files/styles/image_750/public/2025-06/shield-lock-icon-white-solid.png?itok=o54l6hsO 1x, https://www.entrust.com/sites/default/files/styles/image_1500/public/2025-06/shield-lock-icon-white-solid.png" type="image/png" width="31"></source> <source height="32" media="(min-width: 0px)" srcset="/sites/default/files/styles/image_430/public/2025-06/shield-lock-icon-white-solid.png?itok=FbU2KmR- 1x, https://www.entrust.com/sites/default/files/styles/image_640/public/2025-06/shield-lock-icon-white-solid.png" type="image/png" width="31"></source> <img alt="带锁形图标的白色盾牌" loading="lazy" src="/sites/default/files/2025-06/shield-lock-icon-white-solid.png" /> </picture> </div> </div> </div> </span> <span class="text">The Identity Thread</span> </a> </li> </ul> </div> </div> <div class="block block-system block-system-main-block no-title" id="block-mainpagecontent"> <div class="content block-content"> <article class="node node--type-basic-page-with-layout-builder node--promoted node--view-mode-full clearfix" data-history-node-id="646"> <header> </header> <div class="node__content clearfix"> <div class="layout layout--twocol-section layout--twocol-section--67-33 ent-section-bg-white ent-section"> <div class="layout layout--twocol-section layout--twocol-section--67-33 ent-section-bg-white ent-section-w1280"> <div class="layout__region layout__region--first"> <div class="block block-layout-builder block-inline-blockcontent-block no-title content-block content-block-with-padding"> <div class="modal fade" id="content-block-video-modal" tabindex="-1"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button aria-label="Close" class="modal-close-btn" data-bs-dismiss="modal" type="button">×</button> </div> <div class="modal-body"> </div> </div> </div> </div> <div class="content block-content"> <div class="field field--name-field-eyebrow field--type-string field--label-hidden field__item">了解</div> <h1 class="field field--type-string field--label-hidden field__item"> 如何保护物联网设备:： 物联网安全要求 </h1> </div> </div> <div class="block block-layout-builder block-inline-blockcontent-block no-title content-block content-block-with-padding"> <div class="modal fade" id="content-block-video-modal" tabindex="-1"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button aria-label="Close" class="modal-close-btn" data-bs-dismiss="modal" type="button">×</button> </div> <div class="modal-body"> </div> </div> </div> </div> <div class="content block-content"> <h2 class="field field--name-field-title field--type-string field--label-hidden field__item" id="link-what-are-the-key-requirements-of-iot-security">物联网安全的关键要求是什么？</h2> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p> 物联网安全解决方案的关键要求是：</p><ul><li>物联网设备和数据安全，包括设备身份验证以及数据的保密性和完整性</li><li>在物联网规模上实施和运行安全操作</li><li>满足合规性要求和指令</li><li>根据用例满足性能要求 </li></ul></div> </div> </div> <div class="block block-layout-builder block-inline-blockcontent-block no-title content-block content-block-with-padding"> <div class="modal fade" id="content-block-video-modal" tabindex="-1"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button aria-label="Close" class="modal-close-btn" data-bs-dismiss="modal" type="button">×</button> </div> <div class="modal-body"> </div> </div> </div> </div> <div class="content block-content"> <h2 class="field field--name-field-title field--type-string field--label-hidden field__item" id="link-what-are-the-key-functional-blocks-of-iot-security">物联网安全的关键功能块是什么？</h2> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p><a href="https://www.entrust.cn/products/pki/iot-security">物联网安全解决方案</a>需要将下方的功能块作为互连模块来实施，而不是孤立地实施，以满足物联网规模、数据安全、设备信任和合规性要求。</p><ul><li>物联网设备信任： 建立和管理设备身份和完整性</li><li>物联网数据信任： 策略驱动的端到端数据安全，从创建到消费的隐私</li><li>实现信任可操作化： 实现基于标准、成熟的技术/产品的自动化和连接。 例如： PKI 产品。</li></ul></div> </div> </div> <div class="block block-layout-builder block-inline-blockcontent-block no-title content-block content-block-with-padding"> <div class="modal fade" id="content-block-video-modal" tabindex="-1"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button aria-label="Close" class="modal-close-btn" data-bs-dismiss="modal" type="button">×</button> </div> <div class="modal-body"> </div> </div> </div> </div> <div class="content block-content"> <h2 class="field field--name-field-title field--type-string field--label-hidden field__item" id="link-what-do-connected-devices-require-to-participate-in-the-iot-securely">联网设备需要满足哪些标准才能安全地加入物联网？</h2> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p>为了安全地加入物联网，每台连接的设备都需要拥有一个唯一的身份，甚至在它没有 IP 地址之前也是如此。该数字凭证为设备的整个生命周期确立了信任根，贯穿从初始设计、制造到部署、运行及退役的全过程。</p><p>随着物联网部署规模扩展至数千乃至数百万台设备，这些身份便成为保障安全性、系统正常运行时间以及合规性的关键控制点。因此，对这些凭证进行全生命周期管理至关重要。</p><p>Entrust 使用 <a href="https://www.entrust.cn/products/hsm">nShield 硬件安全模块 (HSM)</a>，再加上 Entrust 技术合作伙伴提供的支持安全应用程序，使制造商能够使用强大的加密处理、密钥保护和安全密钥管理为每台设备提供一个唯一身份。 为每台设备嵌入数字证书，以实现下列功能：</p><ul><li>对组织架构中引入的每台设备进行身份验证</li><li>验证设备上操作系统和应用程序的完整性</li><li>设备、网关和云之间的安全通信</li><li>根据批准的代码进行授权的软件和固件更新</li></ul></div> </div> </div> <div class="block block-layout-builder block-inline-blockcontent-block no-title content-block content-block-with-padding"> <div class="modal fade" id="content-block-video-modal" tabindex="-1"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button aria-label="Close" class="modal-close-btn" data-bs-dismiss="modal" type="button">×</button> </div> <div class="modal-body"> </div> </div> </div> </div> <div class="content block-content"> <h2 class="field field--name-field-title field--type-string field--label-hidden field__item" id="link-are-there-security-guidelines-for-the-iot">有关于物联网的安全准则吗？</h2> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p>一些组织已经为 IoT 制定了安全指南。 其中包括：</p><ul><li>物联网安全基金会的《最佳实践指南》 </li><li>开放式 Web 应用程序安全项目 (OWASP)《安全指南》 </li><li>全球移动通信协会 (GSMA)《GSMA 物联网安全指南和评估》 </li><li>美国商务部国家标准与技术研究院 (NIST) 特刊 800-160（“指南”）关于在物联网 (“IoT”) 设备中实施安全性 </li><li>云安全联盟 (CSA)《面向未来的互联世界：开发安全物联网产品的 13 个步骤》 </li></ul></div> </div> </div> <div class="block block-layout-builder block-inline-blockcontent-block no-title content-block content-block-with-padding"> <div class="modal fade" id="content-block-video-modal" tabindex="-1"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button aria-label="Close" class="modal-close-btn" data-bs-dismiss="modal" type="button">×</button> </div> <div class="modal-body"> </div> </div> </div> </div> <div class="content block-content"> <h2 class="field field--name-field-title field--type-string field--label-hidden field__item" id="link-why-is-device-authentication-necessary-for-the-iot">为什么物联网需要设备身份验证？</h2> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p>需要进行强有力的物联网设备身份验证，以确保物联网上连接的设备可以如其标榜的那样值得信赖。 因此，物联网设备需要唯一的设备身份，当设备尝试连接到网关或中央服务器时，可以对该身份进行验证。 有了此唯一 ID 后，IT 系统管理员便可以在每台设备的整个生命周期中对其进行追踪，与其进行安全通信，并防止其执行有害流程。 如果设备出现意外行为，管理员可以轻松撤销其权限。</p></div> </div> </div> <div class="block block-layout-builder block-inline-blockcontent-block no-title content-block content-block-with-padding"> <div class="modal fade" id="content-block-video-modal" tabindex="-1"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button aria-label="Close" class="modal-close-btn" data-bs-dismiss="modal" type="button">×</button> </div> <div class="modal-body"> </div> </div> </div> </div> <div class="content block-content"> <h2 class="field field--name-field-title field--type-string field--label-hidden field__item" id="link-why-is-secure-manufacturing-necessary-for-iot-devices">为什么物联网设备需要安全制造？</h2> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p>通过不安全的制造流程生成的物联网设备为犯罪分子提供了改变生产运行的可乘之机，他们会引入未授权代码，或生产其他单元并在黑市上出售。</p><p>保护制造流程的一种方法是使用硬件安全模块 (HSM) 和支持的安全软件来注入加密密钥和数字证书，并控制构建的单元数量和每个单元中包含的代码。</p></div> </div> </div> <div class="block block-layout-builder block-inline-blockcontent-block no-title content-block content-block-with-padding"> <div class="modal fade" id="content-block-video-modal" tabindex="-1"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button aria-label="Close" class="modal-close-btn" data-bs-dismiss="modal" type="button">×</button> </div> <div class="modal-body"> </div> </div> </div> </div> <div class="content block-content"> <h2 class="field field--name-field-title field--type-string field--label-hidden field__item" id="link-why-is-code-signing-necessary-for-iot-devices">为什么物联网设备需要代码签名？</h2> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p>为了保护企业、品牌、合作伙伴和用户免受被恶意软件感染之软件的侵害，软件开发人员采用了代码签名。 在物联网中，软件发布过程中的代码签名可确保物联网设备软件和固件更新的完整性，并防范物联网软件代码篡改或偏离组织政策的代码带来的风险。</p><p>在公钥加密中，代码签名是基于证书的数字签名的特定用途，它使组织能够验证软件发布者的身份，并证明软件自发布以来未更改过。</p></div> </div> </div> <div class="block block-layout-builder block-inline-blockcontent-block no-title content-block content-block-with-padding"> <div class="modal fade" id="content-block-video-modal" tabindex="-1"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button aria-label="Close" class="modal-close-btn" data-bs-dismiss="modal" type="button">×</button> </div> <div class="modal-body"> </div> </div> </div> </div> <div class="content block-content"> <h2 class="field field--name-field-title field--type-string field--label-hidden field__item" id="link-what-is-iot-pki">什么是物联网 PKI？</h2> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p>如今，全球联网设备的数量已超越人口总数，而每一台设备都需要一个可信的数字身份，才能安全运行。随着企业不断转型其业务模式，物联网技术的快速普及正推动着对物联网公钥基础结构 (IoT PKI) 需求的日益增长。<a href="https://www.entrust.cn/products/pki">PKI </a>能够为设备、应用程序及其运行的软件和固件签发数字证书。</p><p>随着物联网生态系统的扩展，PKI 已成为保障设备身份安全的关键控制点。面对数百万台联网设备与日益增长的机器身份数量，企业必须对证书进行大规模管理；尤其在证书<a href="https://www.entrust.cn/resources/learn/47-day-tls-certificates-certificate-lifecycle-management">生命周期缩短至 47 天</a>、运行环境愈发复杂的当下，这一点尤为关键。</p><p>安全的物联网部署不仅需要相信设备是真实的且与其所标榜的相同，还需要相信他们收集的数据是真实的，不会被更改。 如果无法信任物联网设备和数据，那么根据收集的信息收集、运行分析和执行决策就没有意义了。</p><p>安全采用物联网需要：</p><ul><li>在连接的设备和应用程序之间启用双向身份验证</li><li>维护设备收集的数据的完整性和机密性</li><li>确保下载到设备的软件的合法性和完整性</li><li>根据更严格的安全法规保护敏感数据的隐私</li></ul><p>随着物联网部署的扩张，企业必须在庞大、有时甚至碎片化的基础结构中，确保这些能力得到统一执行。如果缺乏集中式可见性且未实现自动化和统一治理，企业将面临因证书引发的系统中断、安全漏洞以及合规风险。因此，现代化的物联网 PKI 管理是实现安全、可扩展运营的核心前提。</p></div> </div> </div> </div> <div class="layout__region layout__region--second"> <div class="toc-mobile-container"> <div class="explore-section bottom"> <div class="explore-section-link"> <span><a class="toc-links" href="https://www.entrust.cn/resources/learn/internet-of-things-iot#">浏览各节</a></span> <i class="arrow right"></i> </div> </div> <div class="toc-overlay"></div> </div> <div class="toc-section-container"> <div class="block block-layout-builder block-inline-blocktable-of-contents-block no-title"> <div class="toc-block-content"> <button aria-label="Close" class="close-btn" style="display: none" type="button"> x </button> <div class="block-heading"> <h2>浏览各节</h2> </div> <div class="links"> <ul> <li> <a href="https://www.entrust.cn/resources/learn/internet-of-things-iot#link-what-are-the-key-requirements-of-iot-security">物联网安全的关键要求是什么？</a> </li> <li> <a href="https://www.entrust.cn/resources/learn/internet-of-things-iot#link-what-are-the-key-functional-blocks-of-iot-security">物联网安全的关键功能块是什么？</a> </li> <li> <a href="https://www.entrust.cn/resources/learn/internet-of-things-iot#link-what-do-connected-devices-require-to-participate-in-the-iot-securely">联网设备需要满足哪些标准才能安全地加入物联网？</a> </li> <li> <a href="https://www.entrust.cn/resources/learn/internet-of-things-iot#link-are-there-security-guidelines-for-the-iot">有关于物联网的安全准则吗？</a> </li> <li> <a href="https://www.entrust.cn/resources/learn/internet-of-things-iot#link-why-is-device-authentication-necessary-for-the-iot">为什么物联网需要设备身份验证？</a> </li> <li> <a href="https://www.entrust.cn/resources/learn/internet-of-things-iot#link-why-is-secure-manufacturing-necessary-for-iot-devices">为什么物联网设备需要安全制造？</a> </li> <li> <a href="https://www.entrust.cn/resources/learn/internet-of-things-iot#link-why-is-code-signing-necessary-for-iot-devices">为什么物联网设备需要代码签名？</a> </li> <li> <a href="https://www.entrust.cn/resources/learn/internet-of-things-iot#link-what-is-iot-pki">什么是物联网 PKI？</a> </li> </ul> </div> </div> </div> <div class="block block-layout-builder block-inline-blockcallout-sidebar-block no-title callout-sidebar-block"> <div class="field-title-description-div"> <div class="field field--name-field-title field--type-string field--label-hidden field__item">通过以身份为中心的保护确保物联网设备安全</div> </div> <div class="field field--name-field-cta field--type-link field--label-hidden field__item"><a href="https://www.entrust.cn/products/pki/iot-security">探索物联网安全选项</a></div> </div> </div> </div> </div> </div> <div class="ent-section-bg-plum ent-section-onecol"> <div class="layout__region layout__region--content ent-section-w1280"> <div class="block block-layout-builder block-inline-blockcall-out-standard-block no-title call-out-standard-block"> <div class="field-title-description-div"> <h2 class="field field--name-field-title field--type-string field--label-hidden out-of-cards-title field__item">以前瞻性视野，从容应对数量不断增长的物联网设备身份和生命短期证书。 </h2> </div> <div class="field field--name-field-cta field--type-link field--label-hidden field__item"><a href="https://www.brighttalk.com/webcast/17380/666277?q=entrust" rel="noopener" target="_blank">观看网络研讨会</a></div> </div> </div> </div> <div class="gavias-builder--content"></div> </div> </article> </div> </div> </div> </div> </div> </div> <!-- Sidebar Left --> <!-- End Sidebar Left --> <!-- Sidebar Right --> <!-- End Sidebar Right --> </div> </div> </div> </div> </div> </div> <footer class="footer" id="footer"> <div class="footer-inner"> <div class="footer-content"> <div class="region region__footer"> <div class="footer-main-wrapper has-form"> <div class="footer-form-wrapper"> <div class="block block-system block-system-menu-blockfooter no-title form-block" id="block-notech-subtheme-footer"> <div class="content block-content" id="form-block"> <div class="ent-section-w1280"> <div class="field field--name-field-title field--type-string field--label-hidden field__item">随时了解情况</div> <div class="field field--name-field-description field--type-text-long field--label-hidden field__item"><p>订阅 <strong>The Identity Thread</strong> 新闻通讯。</p></div> <form accept-charset="UTF-8" action="https://www.entrust.cn/resources/learn/internet-of-things-iot" class="webform-submission-form webform-submission-add-form webform-submission-cybersecurity-institute-sub3-form webform-submission-cybersecurity-institute-sub3-add-form webform-submission-cybersecurity-institute-sub3-node-646-form webform-submission-cybersecurity-institute-sub3-node-646-add-form js-webform-submit-once js-webform-details-toggle webform-details-toggle email-ubc-validate" data-drupal-selector="webform-submission-cybersecurity-institute-sub3-node-646-add-form" id="webform-submission-cybersecurity-institute-sub3-node-646-add-form" method="post"> <div class="js-webform-type-email webform-type-email js-form-item form-item js-form-type-email form-item-emailaddress js-form-item-emailaddress"> <label class="sr-only js-form-required form-required" for="edit-emailaddress">电子邮件地址</label> <input class="form-email required" data-drupal-selector="edit-emailaddress" id="edit-emailaddress" maxlength="254" name="emailaddress" placeholder="输入您的邮箱" required="required" size="60" type="email" value=""/> </div> <div class="js-webform-type-processed-text webform-type-processed-text js-form-item form-item js-form-type-processed-text form-item- js-form-item- form-no-label" id="edit-consent-text"> <div style="font-size:10px;line-height:1.2em;margin-bottom:10px;margin-top:-10px;">填写并提交此表格，即表示您同意 Entrust 可使用所提供的信息向您发送电子邮件通信。 您可以随时点击<a href="https://go.entrust.com/marketing-preference-center" rel="noopener" target="_blank">此处</a>取消订阅。 您收到的任何电子邮件和电话营销通信均受 Entrust 的<a href="https://www.entrust.cn/legal-compliance/terms-of-use" rel="noopener" target="_blank">使用条款</a>和<a href="https://www.entrust.cn/legal-compliance/data-privacy/privacy-statement" rel="noopener" target="_blank">隐私声明</a>的约束。</div> </div> <input data-drupal-selector="edit-landingpageurl" name="landingpageurl" type="hidden" value="https://www.entrust.com/resources/learn/internet-of-things-iot"/> <input data-drupal-selector="edit-thankyoupageurl" name="thankyoupageurl" type="hidden" value="https://www.entrust.com/resources/identity-thread/thank-you"/> <input data-drupal-selector="edit-signupsource" name="signupsource" type="hidden" value="Cyber Security Institute"/> <input data-drupal-selector="edit-edc-sfid" name="edc_sfid" type="hidden" value=""/> <input data-drupal-selector="edit-edc-sfid-internal" name="edc_sfid_internal" type="hidden" value=""/> <input data-drupal-selector="edit-utm-source" name="utm_source" type="hidden" value=""/> <input data-drupal-selector="edit-utm-medium" name="utm_medium" type="hidden" value=""/> <input data-drupal-selector="edit-utm-campaign" name="utm_campaign" type="hidden" value=""/> <input data-drupal-selector="edit-utm-content" name="utm_content" type="hidden" value=""/> <input data-drupal-selector="edit-utm-term" name="utm_term" type="hidden" value=""/> <input data-drupal-selector="edit-gclid" name="gclid" type="hidden" value=""/> <input data-drupal-selector="edit-placement-context" name="placement_context" type="hidden" value="54001"/> <div class="form-actions webform-actions js-form-wrapper form-wrapper" data-drupal-selector="edit-actions" id="edit-actions"><input class="webform-button--submit button button--primary js-form-submit form-submit" data-drupal-selector="edit-actions-submit" id="edit-actions-submit" name="op" type="submit" value="订阅"/> </div> <input data-drupal-selector="edit-cf-vis" name="_cf_vis" type="hidden" value="eyJjb250aW5lbnQiOiJOQSIsImNvdW50cnkiOiJVUyIsInJlZ2lvbiI6Ik9oaW8iLCJyZWdpb25Db2RlIjoiT0giLCJjaXR5IjoiQ29sdW1idXMiLCJ0aW1lem9uZSI6IkFtZXJpY2EvTmV3X1lvcmsiLCJpc0VVQ291bnRyeSI6ZmFsc2UsImNsaWVudFRydXN0U2NvcmUiOjEwMH0=" /> <input autocomplete="off" data-drupal-selector="form-nlzhuu-uhliszlk-b7-d45d80n8kigbapeamjcmzv0g" name="form_build_id" type="hidden" value="form-NLZhUU-uHLISzLk-b7-D45d80N8kIgBApEAmJcMZv0g"/> <input data-drupal-selector="edit-webform-submission-cybersecurity-institute-sub3-node-646-add-form" name="form_id" type="hidden" value="webform_submission_cybersecurity_institute_sub3_node_646_add_form"/> </form> </div> <div class="ent-background-layer"> </div> </div> </div> </div> <div class="footer-menu-wrapper"> <ul class="gva_menu"> <li class="menu-item menu-item--expanded"> <a data-drupal-link-system-path="contact" href="https://www.entrust.cn/contact">联系信息</a> <ul class="menu sub-menu"> <li class="menu-item"><a href="/contact-sales">联系我们</a></li> <li class="menu-item"> <a href="/contact-support">联系支持</a> </li> <li class="menu-item"> <a href="/contact">查找位置</a> </li> </ul> </li> <li class="menu-item menu-item--expanded"> <a href="https://www.entrust.cn/resources/learn/internet-of-things-iot">公司资讯</a> <ul class="menu sub-menu"> <li class="menu-item"> <a href="/company">关于</a> </li> <li class="menu-item"> <a href="/support">服务与支持</a> </li> <li class="menu-item"> <a href="/partners">合作伙伴</a> </li> <li class="menu-item"> <a href="/company/careers">职业规划</a> </li> <li class="menu-item"><a href="/company/culture">Entrust | 我们的企业文化正向又包容，关心弱势群体</a></li> <li class="menu-item"> <a href="/resources/events">活动</a> </li> <li class="menu-item"> <a href="/resources/webinars">网络研讨会</a> </li> <li class="menu-item"> <a href="/company/impressum">法律声明</a> </li> <li class="menu-item"><a href="http://beian.miit.gov.cn" target="_blank">京ICP备18056606号-3</a></li></ul> </li> <li class="menu-item menu-item--expanded"> <a href="https://www.entrust.cn/resources/learn/internet-of-things-iot">新闻中心</a> <ul class="menu sub-menu"> <li class="menu-item"> <a href="https://www.entrust.com/blog">博客</a> </li> <li class="menu-item"> <a href="/company/newsroom/type/news">新闻</a> </li> <li class="menu-item"> <a href="/company/newsroom/type/press-release">新闻发布</a> </li> <li class="menu-item"> <a data-drupal-link-system-path="node/62431" href="https://www.entrust.cn/resources/identity-thread">The Identity Thread</a> </li> </ul> </li> <li class="menu-item menu-item--expanded"> <a href="https://www.entrust.cn/resources/learn/internet-of-things-iot">产品资源</a> <ul class="menu sub-menu"> <li class="menu-item"><a href="https://idaas.statuspage.io/">IDaaS/IIDaaS 状态</a></li> <li class="menu-item"><a href="https://onfido.statuspage.io/">Onfido/IDV 状态</a></li> <li class="menu-item"> <a href="https://store.entrust.com/?_gl=1*4g4rlf*_gcl_au*NTgwNjExNzU3LjE3Njg0Nzk5NDU.*_ga*MTkzNTY5MTUzNy4xNzY4NDc5OTQ1*_ga_6QRW66BW5T*czE3Njg0Nzk5NDQkbzEkZzEkdDE3Njg0ODA5MTgkajYwJGwwJGgw">Entrust 商店</a> </li> <li class="menu-item"> <a href="/resources">资源</a> </li> <li class="menu-item"> <a href="/resources/documentation">资料库</a> </li> <li class="menu-item"> <a href="/legal-compliance">法律与规则</a> </li> <li class="menu-item"><a href="/tls-certificate-information-center">TLS 证书信息中心</a></li> </ul> </li> </ul> </div> </div> <div class="block block-block-content block-block-content6b6a09e7-d965-452d-8ffe-dd8ebfa31675 no-title code-block" id="block-notech-subtheme-footersociallinks"> <div class="content block-content"> <div class="field field--name-field-html field--type-text-long field--label-hidden field__item"><div class="website-social-links"><div class="footer-image"><img alt="徽标" height="75" loading="lazy" src="/sites/default/files/logo-entrust-tagline270x75.png" width="270" /></div><div class="social-icons"><a aria-label="Twitter X" href="https://twitter.com/Entrust_Corp" rel="noopener" target="_blank"><i class="fa-brands fa-x-twitter"> </i></a> <a aria-label="Facebook" href="https://www.facebook.com/DiscoverEntrust" rel="noopener" target="_blank"><i class="fab fa-facebook"> </i></a> <a aria-label="Instagram" href="https://www.instagram.com/discoverentrust/" rel="noopener" target="_blank"><i class="fab fa-instagram"> </i></a> <a aria-label="LinkedIn" href="https://www.linkedin.com/company/Entrust" rel="noopener" target="_blank"><i class="fab fa-linkedin"> </i></a> <a aria-label="YouTube" href="https://www.youtube.com/c/EntrustVideo" rel="noopener" target="_blank"><i class="fab fa-youtube"> </i></a></div></div></div> </div> </div> </div> </div> </div> <div class="copyright"> <div class="container"> <div class="copyright-inner"> <div class="region region__copyright"> <div class="block-notech-subtheme-footercopyright block block-block-content block-block-content8f156a14-9a19-440c-8c4b-572b2f784d73 no-title code-block" id="block-notech-subtheme-footercopyright"> <div class="content block-content"> <div class="field field--name-field-html field--type-text-long field--label-hidden field__item"><div class="footer-copyright"><a class="footerlegallinks" href="https://www.entrust.cn/legal-compliance">法律</a> <a class="footerlegallinks lang-show lang-hide-ja" href="https://www.entrust.cn/legal-compliance/data-privacy/privacy-statement" style="white-space:nowrap;"><!-- langHide CLASS=[footerlegallinks,lang-show,lang-hide-ja] /--><!-- keep=[Amplexor] /-->隐私声明</a> <a class="footerlegallinks" href="https://www.entrust.cn/legal-compliance/data-privacy/privacy-statement#ads" style="white-space:nowrap;">互联网广告</a> <a class="footerlegallinks" href="https://www.entrust.cn/legal-compliance/terms-conditions" style="white-space:nowrap;">服务条款</a> <a class="footerlegallinks" href="https://www.entrust.cn/legal-compliance/terms-of-use" style="white-space:nowrap;">使用条款</a> <a class="footerlegallinks" href="https://www.entrust.cn/legal-compliance/policies" style="white-space:nowrap;">公司政策</a> <a class="footerlegallinks __ptNoRemap" href="javascript:window.Osano.cm.showDrawer('osano-cm-dom-info-dialog-open')" style="color:#ffffff;white-space:nowrap;">Cookie Preferences</a> <a class="footerlegallinks __ptNoRemap" href="javascript:window.Osano.cm.showDoNotSell()" style="color:#ffffff;white-space:nowrap;">Do Not Sell</a></div><div> ©2026 Entrust Corporation。保留所有权利。 </div></div> </div> </div> </div> </div> </div> </div> </footer> </div> </div> <script src="/sites/default/files/js/js_e-Rb1ojwn2lI0BIKyyyUONNeGiHGSZCO1jBJynq_4QY.js?scope=footer&delta=0&language=en&theme=notech_subtheme&include=eJyFlNuWqyAMhl-o6CO5IqSWFolDgp2-_Q5O7Yyoa994-P4EcgJwTgjiq4X3R3NNFOUCzCidj3e0Qqm9cxPxyQFFMHXsh5inDmdUSxzBhy4z9pSjVXWG4B0ItqfKZYDZA3cTDNhnHxymdo-aJQb-CQijW71YF8EU4PXr9QftvYiGgJ3A0A76qP8buMP3Fo6X-1fG9OocTgmtBuy6q2YgniK3Q6AegmGb_CR8iSRoby1YS8mpgekD2ccHO2eEjNb1Q5J4G9B4JqEJV6xeg3lrG3ajEU2pipk9PlfJQgiGsqiS9BO-t9t-ZBaIDpKrZSX6IO1NqCRyWJNSRzmGJ4uwX6I1EzkLLHwiJ5wonaqz9pQq0ZHNY9k4-D5Bei2VWUXlKbOYtUMIyd4-YhnWrXkhvK_tNfjJ2F3RrpTGLVn3kVfwcVjpDRNt7RbyM6KVQLOislWVph9LUE_z6eNGfUR6BnRq0QPjMa2y16NRljEU0VKoqdwSFq5Oy5Dv9CcdqTQcpzWi83CEjqcl5rHHxMbqLSH1Wkt3xMvvqdCJl6hmf1v5nrPKNSGzzljAUo_qbE2JXLayHsPak8aqh19Z3ycJJBzKwVe-LZDuTzlZ5BM_frHgaEYNs2S50QRh1CFn0cmqFLI1mPSCicsdO-5OahYfvLx0l5jfrOPcy01t2-q_4YePjcMr5CCXJ_Zl5tv3u9H0yvKqi97r3DDM-F8joUEv1lOzd-47vTwOYaOxjl460mT_ATUol98"></script> <script defer="" src="https://static.addtoany.com/menu/page.js"></script> <script src="/sites/default/files/js/js_flAWL4zE-0eyKry0wgvTTbOWFwbTN4IMCWnbq1ZZfao.js?scope=footer&delta=2&language=en&theme=notech_subtheme&include=eJyFlNuWqyAMhl-o6CO5IqSWFolDgp2-_Q5O7Yyoa994-P4EcgJwTgjiq4X3R3NNFOUCzCidj3e0Qqm9cxPxyQFFMHXsh5inDmdUSxzBhy4z9pSjVXWG4B0ItqfKZYDZA3cTDNhnHxymdo-aJQb-CQijW71YF8EU4PXr9QftvYiGgJ3A0A76qP8buMP3Fo6X-1fG9OocTgmtBuy6q2YgniK3Q6AegmGb_CR8iSRoby1YS8mpgekD2ccHO2eEjNb1Q5J4G9B4JqEJV6xeg3lrG3ajEU2pipk9PlfJQgiGsqiS9BO-t9t-ZBaIDpKrZSX6IO1NqCRyWJNSRzmGJ4uwX6I1EzkLLHwiJ5wonaqz9pQq0ZHNY9k4-D5Bei2VWUXlKbOYtUMIyd4-YhnWrXkhvK_tNfjJ2F3RrpTGLVn3kVfwcVjpDRNt7RbyM6KVQLOislWVph9LUE_z6eNGfUR6BnRq0QPjMa2y16NRljEU0VKoqdwSFq5Oy5Dv9CcdqTQcpzWi83CEjqcl5rHHxMbqLSH1Wkt3xMvvqdCJl6hmf1v5nrPKNSGzzljAUo_qbE2JXLayHsPak8aqh19Z3ycJJBzKwVe-LZDuTzlZ5BM_frHgaEYNs2S50QRh1CFn0cmqFLI1mPSCicsdO-5OahYfvLx0l5jfrOPcy01t2-q_4YePjcMr5CCXJ_Zl5tv3u9H0yvKqi97r3DDM-F8joUEv1lOzd-47vTwOYaOxjl460mT_ATUol98"></script> <div id="gva-overlay"></div> <script> (function(w,q){w['QualifiedObject']=q;w[q]=w[q]||function(){ (w[q].q=w[q].q||[]).push(arguments)};})(window,'qualified') </script> <script async="" src="https://js.qualified.com/qualified.js?token=1fWMLXR2jz78qeHA"></script> <script> (function($, undefined) { $(function() { if(getUrlVars()["h"] == 't') { qualified('open'); } function getUrlVars() { var vars = [], hash; var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&'); for (var i = 0; i < hashes.length; i++) { var theHash = hashes[i]; if(theHash.indexOf('#') >= 0) { var cleanedHash = theHash.substr(0, theHash.indexOf('#')); theHash = cleanedHash; } hash = theHash.split('='); vars.push(hash[0]); vars[hash[0]] = hash[1]; } return vars; } }); })(jQuery); </script> <script crossorigin="anonymous" data-cf-beacon="{"version":"2024.11.0","token":"d22be6ac40eb4dae9c450410b18e5e5d","server_timing":{"name":{"cfCacheStatus":true,"cfEdge":true,"cfExtPri":true,"cfL4":true,"cfOrigin":true,"cfSpeedBrain":true},"location_startswith":null}}" defer="" integrity="sha512-ZE9pZaUXND66v380QUtch/5sE9tPFh2zg45pR2PB0CVkCtOREv2AJKkSidISWkysEuQ0EH8faUU5du78bx87UQ==" src="https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e1781791509496"></script> <script>(function(){function c(){var b=a.contentDocument||a.contentWindow.document;if(b){var d=b.createElement('script');d.innerHTML="window.__CF$cv$params={r:'a1b9ec50b8fe0086',t:'MTc4NDEzMDYyOQ=='};var a=document.createElement('script');a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);";b.getElementsByTagName('head')[0].appendChild(d)}}if(document.body){var a=document.createElement('iframe');a.height=1;a.width=1;a.style.position='absolute';a.style.top=0;a.style.left=0;a.style.border='none';a.style.visibility='hidden';document.body.appendChild(a);if('loading'!==document.readyState)c();else if(window.addEventListener)document.addEventListener('DOMContentLoaded',c);else{var e=document.onreadystatechange||function(){};document.onreadystatechange=function(b){e(b);'loading'!==document.readyState&&(document.onreadystatechange=e,c())}}}})();</script> </body></html>