[{"data":1,"prerenderedAt":74},["ShallowReactive",2],{"post-10a5e68fecd1b6d6639":3,"recom-10a5e68fecd1b6d6639":21},{"summary":4,"updateTime":5,"title":6,"cateName":7,"content":8,"cover":9,"createTime":10,"cateId":11,"isTop":12,"nickname":13,"siteId":14,"id":15,"isPage":12,"slug":16,"views":17,"status":18,"uid":15,"coverImageUrl":19,"createDate":20,"cate":11,"keywords":-1},"Uncover the importance of the security subsystem in defending against threats and vulnerabilities in digital systems.",1776842094309,"Security Subsystem: Ensuring Safety and Integrity","QUESTIONS & ANSWERS","\u003Cdiv data-elementor-type=\"wp-post\" data-elementor-id=\"8342\" class=\"elementor elementor-8342\">\r\n\t\t\t\t\t\t\u003Csection class=\"elementor-section elementor-top-section elementor-element elementor-element-446f9d1c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"446f9d1c\" data-element_type=\"section\">\r\n\t\t\t\t\t\t\u003Cdiv class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t\u003Cdiv class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-427c8fd7\" data-id=\"427c8fd7\" data-element_type=\"column\">\r\n\t\t\t\u003Cdiv class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\u003Cdiv class=\"elementor-element elementor-element-ea115ce elementor-widget elementor-widget-image\" data-id=\"ea115ce\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t\u003Cdiv class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\u003Cimg fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" fetchpriority=\"high\" decoding=\"async\" width=\"700\" height=\"400\" src=\"/uploads/2019/12/339.png\" class=\"attachment-2048x2048 size-2048x2048 wp-image-30811\" alt=\"\" srcset=\"uploads/2019/12/339.png 700w, uploads/2019/12/339-400x229.png 400w, uploads/2019/12/339-650x371.png 650w, uploads/2019/12/339-250x143.png 250w, uploads/2019/12/339-150x86.png 150w\" sizes=\"(max-width: 700px) 100vw, 700px\" />\t\t\t\t\t\t\t\t\t\t\t\t\t\u003C/div>\r\n\t\t\t\t\u003C/div>\r\n\t\t\t\t\u003Cdiv class=\"elementor-element elementor-element-5d823bde elementor-widget elementor-widget-text-editor\" data-id=\"5d823bde\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t\u003Cdiv class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">* Question\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">What are the characteristics of the security subsystem?\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">* Answer\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">The \u003Cstrong>security subsystem\u003C/strong> in modern computing and embedded systems refers to the \u003Cstrong>integrated set of hardware, software, and firmware components\u003C/strong> designed to \u003Cstrong>protect systems and data\u003C/strong> from unauthorized access, tampering, and other threats. It plays a critical role in ensuring \u003Cstrong>confidentiality, integrity, and availability\u003C/strong> (CIA triad) of system operations.\u003C/span>\u003C/p>\u003Cdiv id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\r\n\u003Cdiv class=\"ez-toc-title-container\">\r\n\u003Cp class=\"ez-toc-title \" >Table of Contents\u003C/p>\r\n\u003Cspan class=\"ez-toc-title-toggle\">\u003Ca href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\">\u003Cspan class=\"ez-toc-js-icon-con\">\u003Cspan class=\"\">\u003Cspan class=\"eztoc-hide\" style=\"display:none;\">Toggle\u003C/span>\u003Cspan class=\"ez-toc-icon-toggle-span\">\u003Csvg style=\"fill: #999;color:#999\" xmlns=\"http://www.w3.org/2000/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\">\u003Cpath d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\">\u003C/path>\u003C/svg>\u003Csvg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http://www.w3.org/2000/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\">\u003Cpath d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"/>\u003C/svg>\u003C/span>\u003C/span>\u003C/span>\u003C/a>\u003C/span>\u003C/div>\r\n\u003Cnav>\u003Cul class='ez-toc-list ez-toc-list-level-1 ' >\u003Cli class='ez-toc-page-1 ez-toc-heading-level-2'>\u003Ca class=\"ez-toc-link ez-toc-heading-1\" href=\"#Key_Characteristics_of_a_Security_Subsystem\" title=\"Key Characteristics of a Security Subsystem\">Key Characteristics of a Security Subsystem\u003C/a>\u003Cul class='ez-toc-list-level-3' >\u003Cli class='ez-toc-heading-level-3'>\u003Ca class=\"ez-toc-link ez-toc-heading-2\" href=\"#1_Hardware_Root_of_Trust\" title=\"1. Hardware Root of Trust\">1. Hardware Root of Trust\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-3'>\u003Ca class=\"ez-toc-link ez-toc-heading-3\" href=\"#2_Secure_Boot_and_Firmware_Integrity\" title=\"2. Secure Boot and Firmware Integrity\">2. Secure Boot and Firmware Integrity\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-3'>\u003Ca class=\"ez-toc-link ez-toc-heading-4\" href=\"#3_Cryptographic_Engine\" title=\"3. Cryptographic Engine\">3. Cryptographic Engine\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-3'>\u003Ca class=\"ez-toc-link ez-toc-heading-5\" href=\"#4_Key_Management_and_Storage\" title=\"4. Key Management and Storage\">4. Key Management and Storage\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-3'>\u003Ca class=\"ez-toc-link ez-toc-heading-6\" href=\"#5_Access_Control_and_Privilege_Separation\" title=\"5. Access Control and Privilege Separation\">5. Access Control and Privilege Separation\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-3'>\u003Ca class=\"ez-toc-link ez-toc-heading-7\" href=\"#6_Tamper_Detection_and_Response\" title=\"6. Tamper Detection and Response\">6. Tamper Detection and Response\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-3'>\u003Ca class=\"ez-toc-link ez-toc-heading-8\" href=\"#7_Secure_Debug_and_Firmware_Updates\" title=\"7. Secure Debug and Firmware Updates\">7. Secure Debug and Firmware Updates\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-3'>\u003Ca class=\"ez-toc-link ez-toc-heading-9\" href=\"#8_Isolation_of_Security_Functions\" title=\"8. Isolation of Security Functions\">8. Isolation of Security Functions\u003C/a>\u003C/li>\u003C/ul>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-2'>\u003Ca class=\"ez-toc-link ez-toc-heading-10\" href=\"#Examples_of_Security_Subsystems\" title=\"Examples of Security Subsystems\">Examples of Security Subsystems\u003C/a>\u003C/li>\u003Cli class='ez-toc-page-1 ez-toc-heading-level-2'>\u003Ca class=\"ez-toc-link ez-toc-heading-11\" href=\"#Applications\" title=\"Applications\">Applications\u003C/a>\u003C/li>\u003C/ul>\u003C/nav>\u003C/div>\r\n\u003Ch2>\u003Cspan class=\"ez-toc-section\" id=\"Key_Characteristics_of_a_Security_Subsystem\">\u003C/span>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>Key Characteristics of a Security Subsystem\u003C/strong>\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h2>\u003Ch3>\u003Cspan class=\"ez-toc-section\" id=\"1_Hardware_Root_of_Trust\">\u003C/span>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>\u003Cb>1. \u003C/b>\u003C/strong>\u003Cstrong>Hardware Root of Trust\u003C/strong>\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h3>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>Trusted platform module (TPM)\u003C/strong>, \u003Cstrong>secure element\u003C/strong>, or \u003Cstrong>hardware security module (HSM)\u003C/strong> forms the foundation.\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Ensures that \u003Cstrong>security operations\u003C/strong> (like key storage or secure boot) are \u003Cstrong>anchored in tamper-resistant hardware\u003C/strong>.\u003C/span>\u003C/p>\u003Ch3>\u003Cspan class=\"ez-toc-section\" id=\"2_Secure_Boot_and_Firmware_Integrity\">\u003C/span>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>\u003Cb>2. \u003C/b>\u003C/strong>\u003Cstrong>Secure Boot and Firmware Integrity\u003C/strong>\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h3>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Verifies the \u003Cstrong>authenticity and integrity\u003C/strong> of firmware during the boot process.\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Prevents execution of \u003Cstrong>unauthorized or malicious code\u003C/strong>.\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Uses \u003Cstrong>digital signatures\u003C/strong> and \u003Cstrong>cryptographic hashes\u003C/strong>.\u003C/span>\u003C/p>\u003Ch3>\u003Cspan class=\"ez-toc-section\" id=\"3_Cryptographic_Engine\">\u003C/span>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>\u003Cb>3. \u003C/b>\u003C/strong>\u003Cstrong>Cryptographic Engine\u003C/strong>\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h3>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Hardware-accelerated support for \u003Cstrong>AES, RSA, ECC, SHA, HMAC\u003C/strong>, etc.\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Enables \u003Cstrong>fast and secure encryption, decryption, and authentication\u003C/strong>.\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Often includes \u003Cstrong>true random number generators (TRNGs)\u003C/strong> or \u003Cstrong>pseudo-random number generators (PRNGs)\u003C/strong>.\u003C/span>\u003C/p>\u003Ch3>\u003Cspan class=\"ez-toc-section\" id=\"4_Key_Management_and_Storage\">\u003C/span>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>\u003Cb>4. \u003C/b>\u003C/strong>\u003Cstrong>Key Management and Storage\u003C/strong>\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h3>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Secure key generation, storage, and lifecycle management.\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>Keys are kept in protected memory\u003C/strong>, not exposed to the main processor.\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Often integrates \u003Cstrong>fuse-based or physically unclonable function (PUF)\u003C/strong> technology.\u003C/span>\u003C/p>\u003Ch3>\u003Cspan class=\"ez-toc-section\" id=\"5_Access_Control_and_Privilege_Separation\">\u003C/span>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>\u003Cb>5. \u003C/b>\u003C/strong>\u003Cstrong>Access Control and Privilege Separation\u003C/strong>\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h3>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Enforces \u003Cstrong>access policies\u003C/strong> between secure and non-secure domains.\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Mechanisms like \u003Cstrong>memory protection units (MPU)\u003C/strong> and \u003Cstrong>trust zones\u003C/strong> (e.g., ARM TrustZone).\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Only authorized code or users can access sensitive resources.\u003C/span>\u003C/p>\u003Ch3>\u003Cspan class=\"ez-toc-section\" id=\"6_Tamper_Detection_and_Response\">\u003C/span>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>\u003Cb>6. \u003C/b>\u003C/strong>\u003Cstrong>Tamper Detection and Response\u003C/strong>\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h3>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Sensors to detect \u003Cstrong>voltage, temperature, and physical intrusion anomalies\u003C/strong>.\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Can trigger \u003Cstrong>alarm signals, key erasure, or system shutdown\u003C/strong> when tampering is detected.\u003C/span>\u003C/p>\u003Ch3>\u003Cspan class=\"ez-toc-section\" id=\"7_Secure_Debug_and_Firmware_Updates\">\u003C/span>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>\u003Cb>7. \u003C/b>\u003C/strong>\u003Cstrong>Secure Debug and Firmware Updates\u003C/strong>\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h3>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Secure authentication of debug access to prevent unauthorized inspection.\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Supports \u003Cstrong>encrypted and signed firmware updates\u003C/strong> (OTA updates), ensuring \u003Cstrong>authenticated source and data integrity\u003C/strong>.\u003C/span>\u003C/p>\u003Ch3>\u003Cspan class=\"ez-toc-section\" id=\"8_Isolation_of_Security_Functions\">\u003C/span>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>\u003Cb>8. \u003C/b>\u003C/strong>\u003Cstrong>Isolation of Security Functions\u003C/strong>\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h3>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Use of \u003Cstrong>dedicated security cores\u003C/strong> or \u003Cstrong>isolated execution environments\u003C/strong>.\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Enhances system resilience by isolating critical security tasks from the general OS or application layer.\u003C/span>\u003C/p>\u003Ch2>\u003Cspan class=\"ez-toc-section\" id=\"Examples_of_Security_Subsystems\">\u003C/span>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>\u003Cb>Examples of Security Subsystems\u003C/b>\u003C/strong>\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h2>\u003Ctable>\u003Ctbody>\u003Ctr>\u003Ctd>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>Platform\u003C/strong>\u003C/span>\u003C/p>\u003C/td>\u003Ctd>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>Security Features\u003C/strong>\u003C/span>\u003C/p>\u003C/td>\u003C/tr>\u003Ctr>\u003Ctd>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">ARM Cortex-M with TrustZone\u003C/span>\u003C/p>\u003C/td>\u003Ctd>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Secure and non-secure memory regions, secure boot\u003C/span>\u003C/p>\u003C/td>\u003C/tr>\u003Ctr>\u003Ctd>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Intel SGX\u003C/span>\u003C/p>\u003C/td>\u003Ctd>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Enclaves for isolated execution\u003C/span>\u003C/p>\u003C/td>\u003C/tr>\u003Ctr>\u003Ctd>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Secure Element (e.g., NXP SE050)\u003C/span>\u003C/p>\u003C/td>\u003Ctd>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Key storage, cryptographic engine, secure communication\u003C/span>\u003C/p>\u003C/td>\u003C/tr>\u003Ctr>\u003Ctd>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">TPM 2.0\u003C/span>\u003C/p>\u003C/td>\u003Ctd>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">Cryptographic operations and secure identity provisioning\u003C/span>\u003C/p>\u003C/td>\u003C/tr>\u003C/tbody>\u003C/table>\u003Cp> \u003C/p>\u003Ch2>\u003Cspan class=\"ez-toc-section\" id=\"Applications\">\u003C/span>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>Applications\u003C/strong>\u003C/span>\u003Cspan class=\"ez-toc-section-end\">\u003C/span>\u003C/h2>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>IoT devices\u003C/strong> (smart meters, wearables, industrial control)\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>Automotive ECUs\u003C/strong> (secure CAN, secure OTA updates)\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>Mobile devices\u003C/strong> (fingerprint security, mobile payments)\u003C/span>\u003C/p>\u003Cp>\u003Cspan style=\"font-family: Arial, Helvetica, sans-serif; font-size: 12pt; color: #000000;\">\u003Cstrong>Cloud/data centers\u003C/strong> (hardware-based trust for secure containers and VMs)\u003C/span>\u003C/p>\t\t\t\t\t\t\u003C/div>\r\n\t\t\t\t\u003C/div>\r\n\t\t\t\t\t\u003C/div>\r\n\t\t\u003C/div>\r\n\t\t\t\t\t\u003C/div>\r\n\t\t\u003C/section>\r\n\t\t\t\t\u003C/div>\r\n\t\t\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","uploads/2019/12/339.png",1776793371000,"4d7f472a17ef876377d",0,"Admin","2028706543895019522","10a5e68fecd1b6d6639","what-are-the-characteristics-of-the-security-subsystem",132,1,"/uploads/2019/12/339.png","Apr 22, 2026",[22,33,41,49,58,66],{"id":23,"title":24,"summary":25,"content":26,"cover":27,"cateId":11,"tags":28,"views":29,"isTop":12,"status":18,"createBy":27,"createTime":30,"updateBy":27,"updateTime":31,"institutionId":27,"isPage":12,"images":27,"horizontalCover":27,"verticalCover":27,"slug":32,"siteId":14},"f13d7a28dfad5ec4193","What are the shapes of label-type electronic labels?","What are the shapes of label-type electronic labels? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">What are the shapes of label-type electronic labels?\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">Label electronic tags are available in a variety of shapes, such as strips, discs, keychains, and watches. They can be used for item identification and electronic billing, such as air baggage tags and pallet tags.\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">",null,"electronic",359,"2026-04-22 01:44:18","2026-04-22 14:58:13","what-are-the-shapes-of-label-type-electronic-labels",{"id":34,"title":35,"summary":36,"content":37,"cover":27,"cateId":11,"tags":27,"views":38,"isTop":12,"status":18,"createBy":27,"createTime":30,"updateBy":27,"updateTime":39,"institutionId":27,"isPage":12,"images":27,"horizontalCover":27,"verticalCover":27,"slug":40,"siteId":14},"ec9dce1e841180345a8","OSPF has several types of protocol packets?","OSPF has several types of protocol packets? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">OSPF has several types of protocol packets?\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">(1) Hello (Hello) message: Periodically sent to discover and maintain OSPF neighbor relationships.\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: trebuchet-ms;\">(2) Database Description (Database Description) message: describes the summary information of the local LSDB, used for database synchronization between two routers.\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: trebuchet-ms;\">(5) Line State Acknowledgment message: used to confirm the received LSA.\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>",183,"2026-04-22 14:58:16","ospf-has-several-types-of-protocol-packets",{"id":42,"title":43,"summary":44,"content":45,"cover":27,"cateId":11,"tags":46,"views":47,"isTop":12,"status":18,"createBy":27,"createTime":30,"updateBy":27,"updateTime":31,"institutionId":27,"isPage":12,"images":27,"horizontalCover":27,"verticalCover":27,"slug":48,"siteId":14},"e73149d45ecea0cfef7","What are the characteristics of a microcontroller?","What are the characteristics of a microcontroller? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">What are the characteristics of a microcontroller?\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">Compared with the embedded microprocessor, the biggest feature of the microcontroller is that it is singularized and the volume is greatly reduced, so that power consumption and cost are reduced, and reliability is improved.Microcontrollers are currently the mainstream of the embedded system industry.The on-chip peripheral resources of the microcontroller are generally rich and suitable for control.\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","characteristics,microcontroller",340,"what-are-the-characteristics-of-a-microcontroller",{"id":50,"title":51,"summary":52,"content":53,"cover":27,"cateId":11,"tags":54,"views":55,"isTop":12,"status":18,"createBy":27,"createTime":30,"updateBy":27,"updateTime":56,"institutionId":27,"isPage":12,"images":27,"horizontalCover":27,"verticalCover":27,"slug":57,"siteId":14},"df3bcc91f1ae9f67d52","What are the main technical features of the MAX85952/85962?","What are the main technical features of the MAX85952/85962? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">What are the main technical features of the MAX85952/85962?\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">1 Drives up to 8 white LEDs with 25mA current. The temperature derating function allows the same brightness with fewer white LEDs (MAX8596Z); 22.6~5.5V input range, low input ripple voltage peak-to-peakFor l2mV, direct PWM internal filter; 386% efficiency (PLED/PIN); 4 flexible brightness control,\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","technical",453,"2026-04-22 14:58:14","what-are-the-main-technical-features-of-the-max85952-85962",{"id":59,"title":60,"summary":61,"content":62,"cover":27,"cateId":11,"tags":63,"views":64,"isTop":12,"status":18,"createBy":27,"createTime":30,"updateBy":27,"updateTime":56,"institutionId":27,"isPage":12,"images":27,"horizontalCover":27,"verticalCover":27,"slug":65,"siteId":14},"d7ca356aabdc09b4554","What are the structures of magnetic-sensitive transistors?","What are the structures of magnetic-sensitive transistors? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">What are the structures of magnetic-sensitive transistors?\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">The NPN type magneto-sensitive triode is formed on the weak P-type intrinsic semiconductor by an alloy method or a diffusion method to form three junctions, that is, an emitter junction, a base junction, and a collector junction.\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","transistors",395,"what-are-the-structures-of-magnetic-sensitive-transistors",{"id":67,"title":68,"summary":69,"content":70,"cover":27,"cateId":11,"tags":71,"views":72,"isTop":12,"status":18,"createBy":27,"createTime":30,"updateBy":27,"updateTime":31,"institutionId":27,"isPage":12,"images":27,"horizontalCover":27,"verticalCover":27,"slug":73,"siteId":14},"cd4b9e75dcac3559bf0","What are the components of FPGAs, CPLDs, and other types of PLDs?","What are the components of FPGAs, CPLDs, and other types of PLDs? Looking for capacitors online purchase? is a reliable marketplace to buy and learn about capacitors. Come with us for amazing deals & information.","\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva; font-size: 12pt;\">\u003Cspan style=\"color: #c70a0a;\">*\u003C/span> \u003Cspan style=\"color: #808080;\">Question\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">What are the components of FPGAs, CPLDs, and other types of PLDs?\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-family: 'Trebuchet MS', Geneva;\">\u003Cspan style=\"color: #c70a0a;\">\u003Cbr />\r\n\u003Cspan style=\"font-size: 12pt;\">*\u003C/span>\u003C/span>\u003Cspan style=\"color: #808080; font-size: 12pt;\"> Answer\u003C/span>\u003C/span>\u003C/p>\r\n\u003Ctable>\r\n\u003Ctbody>\r\n\u003Ctr>\r\n\u003Ctd width=\"1136\">\u003Cspan style=\"font-family: trebuchet-ms;\">They are composed of three parts:\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: trebuchet-ms;\"> 1 a two-dimensional array of logic blocks, which constitute the logic component of the PLD device;\u003C/span>\u003C/p>\r\n\u003Cp>\u003Cspan style=\"font-family: trebuchet-ms;\"> 2 input/output blocks; 3 interconnection resources connecting the logic blocks, connecting lines of various lengthsComposition, which also has some programmable connection switches,\u003C/span>\u003C/td>\r\n\u003C/tr>\r\n\u003C/tbody>\r\n\u003C/table>\r\n\u003Cp>\u003Cspan style=\"font-size: inherit;\">\u003Cbr />\r\n\u003C/span>\u003C/p>\r\n\u003C/div>\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">\u003C/div>\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\u003C!-- clear for photos floats -->\r\n\t\t\t\t\t\t\u003Cdiv class=\"clear\">","components,FPGAs,CPLDs",92,"what-are-the-components-of-fpgas-cplds-and-other-types-of-plds",1776842082088]