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BitLocker is a full volume encryption feature included with Microsoft Windows versions starting with Windows Vista. It is designed to protect data by providing encryption for entire volumes . By default, it uses the Advanced Encryption Standard (AES) algorithm in cipher block chaining (CBC) or " xor–encrypt–xor (XEX) -based Tweaked codebook ...
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 available to the software. This must be done sometime after each operating system start-up before the encrypted data can be used.
Multiple keys: Whether an encrypted volume can have more than one active key. Passphrase strengthening: Whether key strengthening is used with plain text passwords to frustrate dictionary attacks, usually using PBKDF2 or Argon2. Hardware acceleration: Whether dedicated cryptographic accelerator expansion cards can be taken advantage of.
Includes support for Windows 7, Windows Vista with SP2 and BitLocker-encrypted volumes Create recovery points from within Symantec Recovery Disk: Creates independent recovery points (known as a cold backup or offline backup) without the need to install Norton GHOST or its agent Convert recovery points to virtual disks using a schedule
It can be used to verify that the system seeking the access is the expected system. [4] A limited number of disk encryption solutions have support for TPM. These implementations can wrap the decryption key using the TPM, thus tying the hard disk drive (HDD) to a particular device. If the HDD is removed from that particular device and placed in ...
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 password. An attacker can take advantage of this to gain easier physical access to the drive, for instance, by inserting extension cables.
In case of physical access, computers with TPM 1.2 are vulnerable to cold boot attacks as long as the system is on or can be booted without a passphrase from shutdown, sleep or hibernation, which is the default setup for Windows computers with BitLocker full disk encryption. [66]
If an attacker gains physical access to the Windows 2000 computer and resets a local user account's password, [7] the attacker can log in as that user (or recovery agent) and gain access to the RSA private key which can decrypt all files. This is because the backup of the user's RSA private key is encrypted with an LSA secret, which is ...