NXP Webinar: Secure-by-Design with OP-TEE in i.MX Processors

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"Secure-by-Design-NXP-Webinar-Series-OP-TEE" 在现代智能设备中,安全性成为了不可或缺的一部分,特别是在物联网(IoT)领域。NXP的"Secure-by-Design"网络研讨会系列重点关注了如何在设计阶段就考虑并实现安全措施。其中,OP-TEE(Trusted Execution Environment)是一个关键的组件,它为基于i.MX处理器的系统提供了额外的安全层。 TEE(Trusted Execution Environment)是一个可信执行环境,其主要目的是在主操作系统(如Linux、Android等Rich Execution Environment, REE)之外提供一个隔离的空间,以保护敏感数据和代码的机密性和完整性。这是因为传统的REE可能存在安全漏洞,例如2019年Linux内核报告的265个漏洞。TEE通过硬件支持的机制,如Arm TrustZone,确保即使在REE被攻击的情况下,仍然能保证关键服务的安全运行。 Arm TrustZone是一种硬件级别的安全解决方案,它将系统划分为“安全”和“非安全”两个状态,对内存和I/O进行分区管理,以防止未经授权的访问。在简化硬件视图中,TrustZone会在 Arm SoC 上创建一个L2缓存,区分安全和非安全中断,以及安全和非安全的RAM、外设等。 OP-TEE是开源的TEE实现,特别针对NXP的i.MX处理器进行了优化。OP-TEE OS(Trusted OS)运行在TEE内,与REE并行,为REE上的应用提供可信服务。这些服务可以包括加密、数字签名、密钥管理等,这些操作都在TEE内执行,确保了关键安全操作的隔离和保护。 在OP-TEE中,内存保护机制确保了只有经过授权的组件才能访问特定的数据区域。此外, Trusted Applications (TA) 是在TEE内运行的特定应用程序,它们执行特定的安全功能,且与REE中的应用完全隔离。TA的执行和生命周期管理都受到严格控制,确保了它们的完整性和保密性。 网络研讨会的内容还涵盖了如何启用和测试OP-TEE,以及如何利用增强的OpenSSL引擎来加强安全性能。其他安全考虑因素可能包括固件更新的安全传输、防止调试攻击、以及对硬件后门和侧信道攻击的防护。 OP-TEE通过在硬件支持的隔离环境中提供可信服务,增强了基于NXP i.MX处理器系统的安全性,为物联网设备提供了更为可靠和安全的平台。开发者和系统集成商可以通过理解并应用这些技术,为他们的产品建立坚固的防御体系,抵御日益增长的网络安全威胁。
2019-09-06 上传
Summary Secure by Design teaches developers how to use design to drive security in software development. This book is full of patterns, best practices, and mindsets that you can directly apply to your real world development. You'll also learn to spot weaknesses in legacy code and how to address them. Foreword by Daniel Terhorst-North. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the Technology Security should be the natural outcome of your development process. As applications increase in complexity, it becomes more important to bake security-mindedness into every step. The secure-by-design approach teaches best practices to implement essential software features using design as the primary driver for security. About the Book Secure by Design teaches you principles and best practices for writing highly secure software. At the code level, you'll discover security-promoting constructs like safe error handling, secure validation, and domain primitives. You’ll also master security-centric techniques you can apply throughout your build-test-deploy pipeline, including the unique concerns of modern microservices and cloud-native designs. What's inside Secure-by-design concepts Spotting hidden security problems Secure code constructs Assessing security by identifying common design flaws Securing legacy and microservices architectures About the Reader Readers should have some experience in designing applications in Java, C#, .NET, or a similar language. About the Author Dan Bergh Johnsson, Daniel Deogun, and Daniel Sawano are acclaimed speakers who often present at international conferences on topics of high-quality development, as well as security and design.