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When Secure Boot is enabled, it is initially placed in "setup" mode, which allows a public key known as the "platform key" (PK) to be written to the firmware. Once the key is written, Secure Boot enters "User" mode, where only UEFI drivers and OS boot loaders signed with the platform key can be loaded by the firmware.
The Microsoft products Windows Vista, Windows 7, Windows 8 and Windows RT make use of a Trusted Platform Module to facilitate BitLocker Drive Encryption. [22] Other known applications with runtime encryption and the use of secure enclaves include the Signal messenger [23] and the e-prescription service ("E-Rezept") [24] by the German government.
Windows 8 and later have native support for TPM 2.0. Windows 7 can install an official patch to add TPM 2.0 support. [92] Windows Vista through Windows 10 have native support for TPM 1.2. The Trusted Platform Module 2.0 (TPM 2.0) has been supported by the Linux kernel since version 3.20 (2012) [93] [94] [95]
Valorant will not run on Windows 11 if the system does not have a Trusted Platform Module (TPM) 2.0 compliant cryptoprocessor and UEFI secure boot enabled, as mandated by Microsoft's minimum system requirements for the operating system. [73]
The Next-Generation Secure Computing Base (NGSCB; codenamed Palladium [1] and also known as Trusted Windows [2]) is a software architecture designed by Microsoft which claimed to provide users of the Windows operating system with better privacy, security, and system integrity.
Pre-boot authentication can by performed by an add-on of the operating system like Linux Initial ramdisk or Microsoft's boot software of the system partition (or boot partition) or by a variety of full disk encryption (FDE) vendors that can be installed separately to the operating system. Legacy FDE systems tended to rely upon PBA as their ...
USB Key Mode: The user must insert a USB device that contains a startup key into the computer to be able to boot the protected OS. Note that this mode requires that the BIOS on the protected machine supports the reading of USB devices in the pre-OS environment.
A common purpose of cold boot attacks is to circumvent software-based disk encryption. Cold boot attacks when used in conjunction with key finding attacks have been demonstrated to be an effective means of circumventing full disk encryption schemes of various vendors and operating systems, even where a Trusted Platform Module (TPM) secure cryptoprocessor is used.