Essay about Bitlocker

1467 Words Dec 5th, 2013 6 Pages
BitLocker Drive Encryption Overview

73 out of 98 rated this helpful - Rate this topic
Applies To: Windows Server 2008, Windows Server 2008 R2, Windows Vista
BitLocker Drive Encryption is a data protection feature available Windows Server 2008 R2 and in some editions of Windows 7. Having BitLocker integrated with the operating system addresses the threats of data theft or exposure from lost, stolen, or inappropriately decommissioned computers.
Data on a lost or stolen computer is vulnerable to unauthorized access, either by running a software-attack tool against it or by transferring the computer's hard disk to a different computer. BitLocker helps mitigate unauthorized data access by enhancing file and system protections. BitLocker
…show more content…
This helps ensure that BitLocker makes the encrypted drive accessible only if those components have not been tampered with and the encrypted drive is located in the original computer.
BitLocker helps ensure the integrity of the startup process by taking the following actions:
Provide a method to check that early boot file integrity has been maintained, and help ensure that there has been no adversarial modification of those files, such as with boot sector viruses or rootkits.

Enhance protection to mitigate offline software-based attacks. Any alternative software that might start the system does not have access to the decryption keys for the Windows operating system drive.

Lock the system when it is tampered with. If any monitored files have been tampered with, the system does not start. This alerts the user to the tampering, because the system fails to start as usual. In the event that system lockout occurs, BitLocker offers a simple recovery process.

Hardware, firmware, and software requirements
To use BitLocker, a computer must satisfy certain requirements:
For BitLocker to use the system integrity check provided by a TPM, the computer must have a TPM version 1.2. If your computer does not have a TPM, enabling BitLocker will require you to save a startup key on a removable device such as a USB flash drive.

A computer with a TPM must also have a

Related Documents