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Protecting the pre-OS environment with UEFI

MUTI

New member
С новата версия на Windows 8 и нова боза. Вместо да ни улесняват ще трябва да се борим с поредните иновации.

There have been some comments about how Microsoft implemented secure boot and unfortunately these seemed to synthesize scenarios that are not the case so we are going to use this post as a chance to further describe how UEFI enables secure boot and the options available to PC manufacturers. The most important thing to understand is that we are introducing capabilities that provide a no-compromise approach to security to customers that seek this out while at the same time full and complete control over the PC continues to be available. Tony Mangefeste on our Ecosystem team authored this post. --Steven
Quick summary

UEFI allows firmware to implement a security policy
Secure boot is a UEFI protocol not a Windows 8 feature
UEFI secure boot is part of Windows 8 secured boot architecture
Windows 8 utilizes secure boot to ensure that the pre-OS environment is secure
Secure boot doesn’t “lock out” operating system loaders, but is a policy that allows firmware to validate authenticity of components
OEMs have the ability to customize their firmware to meet the needs of their customers by customizing the level of certificate and policy management on their platform
Microsoft does not mandate or control the settings on PC firmware that control or enable secured boot from any operating system other than Windows

The big picture – no compromises on security

The UEFI secure boot protocol is the foundation of an architecturally neutral approach to platform and firmware security. Based on the Public Key Infrastructure (PKI) process to validate firmware images before they are allowed to execute, secure boot helps reduce the risk of boot loader attacks. Microsoft relies on this protocol in Windows 8 to improve platform security for our customers.

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