TCG | SD Association

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href="https://sdcard.us19.list-manage.com/subscribe?u=5eb48e3ef8c40c6406e9892ad&id=3ccaceb453" target="_blank">SD Association Interest Group <img src="https://www.sdcard.org/cms/wp-content/themes/sdcard-org/library/images/blankicon.gif" alt=""></a></li> </ul> </li> </ul> <ul class="gnav_1_c_box"> <li> <div class="bg-navy"><span class="fr ml20 mb10"><img src="https://www.sdcard.org/cms/wp-content/themes/sdcard-org/library/images/gnav1_img01.jpg" alt="" width="171" height="173"></span> <p>About SD Association</p> <p class="f_size12">Founded in January 2000 by Panasonic, SanDisk and Toshiba (now KIOXIA), the SD Association is a group dedicated to establishing SD standards and facilitating their adoption and development.<br> At its outset the Association represented just 14 member companies and has grown into a global alliance comprised of around 800 member companies. By developing and adopting SD standards, members enjoy better compatibility of member cards between devices, greatly enhancing consumer enjoyment and convenience.</p> </div> </li> </ul> </li></div> </ul></div> </li> <li class="mega-menu-list dc-mega-li"> <a href="https://www.sdcard.org/consumers/" class="mega-menu-list-ttl dc-mega">Consumers<span class="dc-mega-icon"></span></a> <div class="sub-container mega" style="left: 0px; top: 40px; z-index: 1000;"><ul class="relative sub" style="display: none;"> <div class="row" style="width: 980px;"><li class="megabox mega-unit mega-hdr last" style="height: 321px;"><span class="triangle triangle_2"></span> <ul class="gnav_2_a_box"> <li> <ul class="linklist"> <li><a href="https://www.sdcard.org/consumers/about-sd-memory-card-choices/">About SD Memory Card Choices</a> <ul> <li><a href="https://www.sdcard.org/consumers/about-sd-memory-card-choices/sd-sdhc-sdxc-and-sduc-card-capacity-choices/">SD, SDHC, SDXC and SDUC Card Capacity Choices</a></li> <li><a href="https://www.sdcard.org/consumers/about-sd-memory-card-choices/bus-interface-speed-standards-for-large-size-data-transfer/">Bus Interface Speed Standards for Large Size Data Transfer</a></li> <li><a href="https://www.sdcard.org/consumers/about-sd-memory-card-choices/speed-class-standards-for-video-recording/">Speed Class Standards for Video Recording</a></li> <li><a href="https://www.sdcard.org/consumers/about-sd-memory-card-choices/application-performance-class-for-running-smartphone-apps/">Application Performance Class for Running Smartphone Apps</a></li> <li><a href="https://www.sdcard.org/consumers/about-sd-memory-card-choices/low-voltage-signaling/">Low Voltage Signaling</a></li> <li><a href="https://www.sdcard.org/consumers/about-sd-memory-card-choices/copyright-protection-for-digital-data-cprm/">Copyright Protection for Digital Data (CPRM)</a></li> </ul> </li> </ul> </li> </ul> <ul class="gnav_2_b_box"> <li> <ul class="linklist"> <li><a href="https://www.sdcard.org/svp/">SD Express / UHS-II Verification Program (SVP) Verified Product</a></li> <li><a href="https://www.sdcard.org/consumers/choosemicrosd/">#choosemicroSD</a></li> <li><a href="https://www.sdcard.org/consumers/usage-tip-videos/">Usage Tip Videos</a></li> <li><a href="https://www.sdcard.org/consumers/faq/">FAQ</a></li> </ul> </li> </ul> <ul class="gnav_2_c_box"> <li> <div class="bg-navy"><span class="fr ml20 mb10"><img src="https://www.sdcard.org/cms/wp-content/themes/sdcard-org/library/images/gnav2_img01.jpg" alt="" width="171" height="173"></span> <p>Consumers</p> <p class="f_size12">The SD Association has prepared multiple SD standards relating to such features as memory capacity and reading/writing speed in order for users to select the optimum card for their device.</p> </div> </li> </ul> </li></div> </ul></div> </li> <li class="mega-menu-list dc-mega-li"> <a href="https://www.sdcard.org/developers/" class="mega-menu-list-ttl dc-mega">Developers<span 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href="https://www.sdcard.org/developers/boot-and-new-security-features/">Boot and Extended Security Features (RPMB and TCG)</a> <ul> <li><a href="https://www.sdcard.org/developers/boot-and-new-security-features/boot-function/">Boot (secured and fast)</a></li> <li><a href="https://www.sdcard.org/developers/boot-and-new-security-features/tcg-storage-in-sd-memory-cards/">TCG</a></li> <li><a href="https://www.sdcard.org/developers/boot-and-new-security-features/replay-protected-memory-block/">RPMB</a></li> </ul> </li> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/speed-class/">Speed Class</a></li> <li><a class="level_3" href="https://www.sdcard.org/developers/sd-standard-overview/application-performance-class/">Application  Performance Class</a></li> <li><a class="level_3" href="https://www.sdcard.org/developers/sd-standard-overview/low-voltage-signaling/">Low Voltage Signaling</a></li> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/content-protection/">Content Protection</a></li> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/host-controllers/">Host Controllers</a> </li> </ul> </li> </ul> </li> </ul> <ul class="gnav_3_b_box"> <li> <ul class="linklist"> <li class="noliststyle">  <ul> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/sdio-isdio/">SDIO/iSDIO</a> <ul> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/sdio-isdio/wireless-lan-sd/">Wireless LAN SD</a></li> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/sdio-isdio/transferjet-sd/">TransferJet SD</a></li> </ul> </li> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/assd/">ASSD</a> <ul> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/assd/smartsd/">smartSD</a></li> </ul> </li> </ul> </li> </ul> </li> </ul> <ul class="gnav_3_c_box"> <li> <ul class="linklist"> <li class="noliststyle">  <ul> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/embedded-sd/">Embedded SD</a></li> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/application-formats/">Application Formats</a> <ul> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/application-formats/sd-audio/">SD-Audio</a></li> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/application-formats/sd-video/">SD-Video</a></li> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/application-formats/sd-binding/">SD-Binding</a></li> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/application-formats/sd-sd/">SD-SD</a></li> <li><a href="https://www.sdcard.org/developers/sd-standard-overview/application-formats/sd-sd-ebook/">SD-SD eBook</a></li> </ul> </li> </ul> </li> </ul> </li> </ul> <ul class="gnav_3_d_box"> <li> <ul class="linklist"> <li><a href="https://www.sdcard.org/developers/svp/">SD Express / UHS-II Verification Program (SVP) Verified Product</a></li> <li><a href="https://www.sdcard.org/developers/how-to-start-using-sd-standards-in-your-product/">How to Start Using SD Standards in Your Product</a></li> <li><a href="https://www.sdcard.org/developers/use-and-licensing/">Use and Licensing</a></li> </ul> </li> </ul> </li></div> </ul></div> </li> <li class="mega-menu-list dc-mega-li"> <a href="https://www.sdcard.org/downloads/" class="mega-menu-list-ttl dc-mega">Downloads<span class="dc-mega-icon"></span></a> <div class="sub-container mega" style="left: 0px; top: 40px; z-index: 1000;"><ul class="relative sub" style="display: none;"> <div class="row" style="width: 980px;"><li class="megabox mega-unit mega-hdr last" style="height: 400px;"><span class="triangle triangle_4"></span> <ul class="gnav_4_a_box"> <li> <ul class="linklist"> <li><a href="https://www.sdcard.org/downloads/pls/latest_whitepapers/">SD Association Whitepapers</a></li> <li><a href="https://www.sdcard.org/downloads/pls/">Simplified Specifications</a></li> <li><a href="https://www.sdcard.org/downloads/formatter/">SD Memory Card Formatter for Windows/Mac</a> <ul> <li><a href="https://www.sdcard.org/downloads/formatter/sd-memory-card-formatter-for-windows-download/">SD Memory Card Formatter for Windows Download</a></li> <li><a href="https://www.sdcard.org/downloads/formatter/sd-memory-card-formatter-for-mac-download/">SD Memory Card Formatter for Mac Download</a></li> <li><a href="https://www.sdcard.org/downloads/formatter/faq/">FAQ</a></li> </ul> </li> <li><a href="https://www.sdcard.org/downloads/sd-memory-card-formatter-for-linux/">SD Memory Card Formatter for Linux</a> <ul> <li><a href="https://www.sdcard.org/downloads/sd-memory-card-formatter-for-linux/sd-memory-card-formatter-for-linux-x86-64-download/">SD Memory Card Formatter for Linux_x86_64 Download</a></li> <li><a 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href="https://www.sdcard.org/developers/how-to-start-using-sd-standards-in-your-product/">How to Start Using SD Standards in Your Product</a></li><li class="line level_2"><a href="https://www.sdcard.org/developers/use-and-licensing/">Use and Licensing</a></li> </ul> </div> </div> </div> </div> <main id="main" class="m-all t-all d-fixed-670 cf" role="main" itemscope itemprop="mainContentOfPage" itemtype="http://schema.org/Blog"> <article id="post-3879" class="cf post-3879 page type-page status-publish hentry" role="article" itemscope itemtype="http://schema.org/BlogPosting"> <section class="entry-content cf" itemprop="articleBody"> <h2 class="fast">TCG Storage in SD Memory cards</h2> <p>The Trusted Computing Group (TCG) provides open standards for secure computing, including enterprise storage and mobile devices, to name a few. Thousands of vendors offer a variety of TCG-based products, including hardware, applications and services. TCG was adopted in the market mainly for self encrypted drive (SED) applications. The TCG Storage protocol was already defined to be used over NVMe and other various command layer protocols.<br /> SD Specification Part 1 v9.0, along with the Extended Security Addendum v1.0, defines how TCG may be used on SD memory cards, either through the SD protocol over the SD interface or through the NVMe protocol over the PCIe interface on SD Express cards.<br /> The use of TCG through the NVMe interface in SD Express cards is the same as defined in NVMe standards.<br /> In order to allow TCG support over the SD protocol two new commands were added – ACMD53 and ACMD54 correspond to IF-RECV and IF-SEND respectively and are defined in TCG Storage Architecture Core Specification. These two commands are generic and may be used to transfer transparently other security protocols over SD protocol (RPMB feature is using them as well).<br /> TCG specifications define the Storage Interface Interaction Specification (SIIS) used with SD protocol.<br /> TCG storage performs two major functions:</p> <ol> <li>Encrypt/Decrypt (AES) automatically any user data written/read to/from the user area of the card</li> <li>May Lock/Unlock access to the user area.</li> </ol> <p class="mb20">It serves as access protection if the user area access is locked or as data protection, if the storage media is removed from the host.</p> <p class="mb20">TCG function may be supported by any SD, SD UHS-I or SD Express cards. TCG is not defined for UHS-II mode and cannot be implemented in UHS-II cards.</p> <p class="mb20">Further detailed explanation about TCG and its usage as SED with NVMe may be found in the following link: <a href="https://trustedcomputinggroup.org/" target="_blank" rel="noopener">https://trustedcomputinggroup.org/</a></p> <img fetchpriority="high" decoding="async" width="369" height="136" class="wp-image-3896 aligncenter size-full" src="https://www.sdcard.org/cms/wp-content/uploads/2022/08/image14.png" alt="" srcset="https://www.sdcard.org/cms/wp-content/uploads/2022/08/image14.png 369w, https://www.sdcard.org/cms/wp-content/uploads/2022/08/image14-300x111.png 300w" sizes="(max-width: 369px) 100vw, 369px" /> </section> <footer class="article-footer"> </footer> </article> </main> </div> </div> <footer class="footer" role="contentinfo" itemscope itemtype="http://schema.org/WPFooter"> <div id="inner-footer" class="wrap cf"> <nav role="navigation"> </nav> <div class="copy"> <p class="mt15 mb5"><span>SD and related marks and logos are trademarks of SD-3C LLC.</span></p> <p class="mb5">© 2000 - 2024 SD-3C LLC. 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