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[6] [7] BitLocker was briefly called Secure Startup before Windows Vista's release to manufacturing. [6] BitLocker is available on: Enterprise and Ultimate editions of Windows Vista and Windows 7; Pro and Enterprise editions of Windows 8 and 8.1 [8] [2] Windows Embedded Standard 7 and Windows Thin PC; Windows Server 2008 [9] and later [10] [8]
The disk's data is protected using symmetric cryptography with the key randomly generated when a disk's encryption is first established. This key is itself encrypted in some way using a password or pass-phrase known (ideally) only to the user. Thereafter, in order to access the disk's data, the user must supply the password to make the key ...
The individual sector keys are stored on disk and encrypted with a master key. (See GBDE for details) LRW: The Liskov-Rivest-Wagner tweakable narrow-block mode, a mode of operation specifically designed for disk encryption. Superseded by the more secure XTS mode due to security concerns. [122]
Windows 11 is the latest major release of the Windows NT operating system and the successor of Windows 10. Some features of the operating system were removed in comparison to Windows 10, and further changes in older features have occurred within subsequent feature updates to Windows 11. Following is a list of these.
The symmetric encryption key is maintained independently from the computer's CPU, thus allowing the complete data store to be encrypted and removing computer memory as a potential attack vector. Hardware-FDE has two major components: the hardware encryptor and the data store. There are currently four varieties of hardware-FDE in common use:
In Windows 2000, XP or later, the user's RSA private key is encrypted using a hash of the user's NTLM password hash plus the user name – use of a salted hash makes it extremely difficult to reverse the process and recover the private key without knowing the user's passphrase. Also, again, setting Syskey to mode 2 or 3 (Syskey typed in during ...
Screenshot of the Syskey utility on the Windows 8.1 operating system requesting the user to enter a password.. The SAM Lock Tool, better known as Syskey (the name of its executable file), is a discontinued component of Windows NT that encrypts the Security Account Manager (SAM) database using a 128-bit RC4 encryption key.
Since 2018, OEMs can ship Windows 10 Home and Pro in a feature-limited variation named S mode which evolved from the discontinued Windows 10 S. Organizations employing Windows 10 Enterprise or Windows 10 Education can make use of S mode too. [16] S mode is a feature-limited edition of Windows 10 designed primarily for low-end devices in the ...