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Additionally, it may be possible to reboot the computer into an attacker-controlled operating system without cutting power to the drive. When a computer with a self-encrypting drive is put into sleep mode, the drive is powered down, but the encryption password is retained in memory so that the drive can be quickly resumed without requesting the ...
The Apple Computer Mac OS X operating system has provided software for disc data encryption since Mac OS X Panther was issued in 2003 (see also: Disk Utility). [citation needed] Additional software can be installed on an external USB drive to prevent access to files in case the drive becomes lost or stolen.
ATA drives may support a periodic short operation called "offline data collection". Although this feature is marked "obsolete", many modern hard drives retain this feature. The drive remains operable during collection and any result is reflected only in SMART attributes (some attributes only update when "offline"). [111]
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.
Interface: List of USB, Firewire, eSATA, or other interfaces for connection a computer. Max Capacity: Maximum size drive is available in. Included Software: List of any included software, excluding any standard freeware or trialware obtainable by an end user. Other Features: Other notable features that differentiate the device.
Hidden containers: Whether hidden containers (an encrypted container (A) within another encrypted container (B) so the existence of container A can not be established) [60] can be created for deniable encryption. Note that some modes of operation like CBC with a plain IV can be more prone to watermarking attacks than others.
Some disk encryption software (e.g., TrueCrypt or BestCrypt) provide features that generally cannot be accomplished with disk hardware encryption: the ability to mount "container" files as encrypted logical disks with their own file system; and encrypted logical "inner" volumes which are secretly hidden within the free space of the more obvious ...
FileVault uses the user's login password as the encryption passphrase. 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. [3]