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Mac-specific features, including spoofing booting process to enable secondary video chipsets on some Mac. Linux-specific features, including autodetecting EFI stub loader to boot Linux kernel directly and using fstab in lieu of rEFInd configuration file for boot order. Support for Secure Boot.
Also, in a multi-boot environment with multiple versions of Windows installed side by side, the F8 key can be pressed at the OS selector prompt to get to safe mode. However, under Windows 8 (released in 2012), the traditional press-F8-for-safe-mode-options UI convention no longer works, and either Shift-F8 or a special GUI-based workaround is ...
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.
Bootloader unlocking is the process of disabling the bootloader security that makes secure boot possible. It can make advanced customizations possible, such as installing custom firmware. On smartphones, this can be a custom Android distribution or another mobile operating system. Some bootloaders are not locked at all and some are locked, but ...
To be considered secure, a MAC function must resist existential forgery under chosen-message attacks. This means that even if an attacker has access to an oracle which possesses the secret key and generates MACs for messages of the attacker's choosing, the attacker cannot guess the MAC for other messages (which were not used to query the oracle ...
You can disable Secure Boot by restarting your PC and opening the Unified Extensible Firmware Interface (UEFI).
The boot loader on the option ROM would attempt to boot from a disk, network, or other boot program source attached to or installed on the adapter card; if that boot attempt failed, it would pass control to the previous boot loader (to which INT 19h pointed before the option ROM hooked it), allowing the system to boot from another device as a ...
Kon-Boot modifies the kernel code on the fly (runtime), temporarily changing the code responsible for verification user's authorization data while the operating system loads. In contrast to password reset tools like CHNTPW (The Offline NT Password Editor), Kon-Boot does not modify system files and SAM hive , [ 18 ] all changes are temporary and ...