System Encryption: BitLocker And TrueCrypt Compared

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Now that Intel offers hardware-based AES acceleration in a number of its mainstream processors, it's time to take a look at two of the most popular system encryption tools, BitLocker and TruCrypt, both of which are able to harness the hardware feature.

Test Setup And Settings

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System Hardware
Hardware Details
Motherboard (Socket LGA1156) Gigabyte P55A-UD7  (Rev. 1.0) Chipset: P55; BIOS: F3 (01/26/2010)
CPU Intel Intel Core i5-750 (45 nm, 2.66 GHz, 4 x 256KB L2 and 8MB L3 Cache, TDP 95W)
RAM DDR3 (dual) 2 x 2GB DDR3-1600 (OCZ OCZ3G2000LV4GK); DDR3-1333 8-8-8-24 1T
Hard Drive Western Digital VelociRaptor, 300GB (WD3000HLFS) 10,000 RPM, SATA/300, 16MB Cache
Graphics Sapphire Radeon HD 5850 GPU: Cypress (725 MHz); Graphics RAM: 1,024MB GDDR5 (2,000 MHz); Stream Processors: 1,440
Power Supply PC Power & Cooling, Silencer 750EPS12V 750W
System Software & Drivers
Operating System Windows 7 Ultimate X64 Updated 2010-02-11
Drivers and Settings
Intel Chipset Drivers Chipset Installation Utility Ver. 9.1.1.1025
ATI Graphics Drivers Radeon Version 10.1