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Note that this does not imply that the encrypted disk can be used as the boot disk itself; refer to pre-boot authentication in the features comparison table. Partition: Whether individual disk partitions can be encrypted. File: Whether the encrypted container can be stored in a file (usually implemented as encrypted loop devices).
Hard disk drive (HDD) FDE (self-encrypting drive) Enclosed hard disk drive FDE; Removable hard disk drive FDE; Bridge and Chipset (BC) FDE; Hardware designed for a particular purpose can often achieve better performance than disk encryption software, and disk encryption hardware can be made more transparent to software than encryption done in ...
Bootable: Whether (with the appropriate OS installed on the drive and supporting BIOS on a computer) the drive can be used to boot a computer. Encryption Type : Type of encryption used. Certification : Whether FIPS 140-2 or similar validation has been passed.
Portable or "traveller mode" means the encryption software can be run without installation to the system hard drive. In this mode, the software typically installs a temporary driver from the portable media. Since it is installing a driver (albeit temporarily), administrative privileges are still required.
And device encryption will be enabled by default by clean installation of Windows 11 24H2, called auto device encryption. [27] In September 2019 a new update was released (KB4516071 [28]) changing the default setting for BitLocker when encrypting a self-encrypting drive. Now, the default is to use software encryption for newly encrypted drives.
Disk encryption does not replace file encryption in all situations. Disk encryption is sometimes used in conjunction with filesystem-level encryption with the intention of providing a more secure implementation. Since disk encryption generally uses the same key for encrypting the whole drive, all of the data can be decrypted when the system runs.
FileVault uses the user's login password as the encryption pass phrase. It uses the XTS-AES mode of AES with 128 bit blocks and a 256 bit key to encrypt the disk, as recommended by NIST. [11] [12] Only unlock-enabled users can start or unlock the drive. Once unlocked, other users may also use the computer until it is shut down.
The Opal Storage Specification is a set of specifications for features of data storage devices (such as hard disk drives and solid state drives) that enhance their security. For example, it defines a way of encrypting the stored data so that an unauthorized person who gains possession of the device cannot see the data.