July 10th, 2008
Less than four months after the release of version 5.1a on March 17, the folks responsible for Truecrypt have raised the standard in free personal data security up a notch by releasing version 6.0 last July 4 and following that up almost immediately with 6.0a just 4 days later.
As I wrote a few months back, what Truecrypt essentially does is create an encrypted volume to which you save your data. Using the Truecrypt interface you can mount this volume which would appear as a new drive letter and process “on the fly” data encryption/decryption to data going in or out of the volume. It can also encrypt an entire partition or entire device, which would come in handy if you wanted to encrypt for example your whole 2GB/4GB flash drive or SD/SDHC card.

The new features of version 6.0a include:
- Parallelized encryption/decryption on multi-core processors (or multi-processor systems). Increase in encryption/decryption speed is directly proportional to the number of cores and/or processors.For example, if your computer has a quad-core processor, encryption and decryption will be four times faster than on a single-core processor with equivalent specifications (likewise, it will be twice faster on dual-core processors, etc.)
- Ability to create and run an encrypted hidden operating system whose existence is impossible to prove (provided that certain guidelines are followed). This available for Windows (XP, Vista, 2008, etc.) only.
- On Windows Vista and Windows 2008, it is now possible to encrypt an entire system drive even if it contains extended/logical partitions.
- Parallelized header key derivation on multi-core processors (one algorithm per core/thread). As a result, mounting is several times faster on multi-core processors. (Windows)
- Ability to create hidden volumes under Mac OS X and Linux.
- On Linux, TrueCrypt now uses native kernel cryptographic services (by default) for volumes encrypted in XTS mode. This increases read/write speed in most cases. However, the FUSE driver must still be used when the volume is encrypted in a deprecated mode of operation (LRW or CBC), or when mounting an outer volume with hidden-volume protection, or when using an old version of the Linux kernel that does not support XTS mode. (Linux)
Of course the usual bug fixes come with the new version.
So what are you waiting for? If you value your privacy, go do a Google search for Truecrypt and download this essential piece of security software.
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