Search results
Results from the WOW.Com Content Network
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 ...
CBC with random per-sector keys: The CBC mode where random keys are generated for each sector when it is written to, thus does not exhibit the typical weaknesses of CBC with re-used initialization vectors. The individual sector keys are stored on disk and encrypted with a master key. (See GBDE for details)
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.
In other words, the files are "copied" (e.g. into the backup file) in encrypted form, and are not decrypted during backup. Starting with Windows Vista, a user's private key can be stored on a smart card; Data Recovery Agent (DRA) keys can also be stored on a smart card. [6]
The concept can be seen on [7] This is an improvement on removing [unencrypted] hard drives from a computer and storing them in a safe when not in use. This design can be used to encrypt multiple drives using the same key. Generally they are not securely locked [8] so the drive's interface is open to attack.
Even a Trusted Platform Module (TPM) is not effective against the attack, as the operating system needs to hold the decryption keys in memory in order to access the disk. [7] Full disk encryption is also vulnerable when a computer is stolen when suspended. As wake-up does not involve a BIOS boot sequence, it typically does not ask for the FDE ...
On devices with Windows' BitLocker disk encryption enabled, which corporations often use to increase security, fixing the problem was exacerbated because the 48-digit numeric Bitlocker recovery keys (unique to each system) required manual input, with additional challenges supplying the recovery keys to end users working remotely. Additionally ...
Windows 7 — Windows 7: The number 7 comes from incrementing the internal version number of Windows Vista (6.0) by one. Often incorrectly referred to as Blackcomb or Vienna, while the codenames actually refer to an earlier Vista successor project that was cancelled due to scope creep. [43] [50] [51] Windows Server 7 — Windows Server 2008 R2 ...