TrueCrypt 7.1a

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TrueCrypt Foundation|More programs
Windows XP/Vista/7
October 4th, 2012

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3.31MB|0 downloads

TrueCrypt 7.1a Description

TrueCrypt 7.1a is known as a functional software for establishing and maintaining an on-the-fly-encrypted volume (data storage device). On-the-fly encryption means that data is automatically encrypted right before it is saved and decrypted right after it is loaded, without any user intervention. No data stored on an encrypted volume can be read (decrypted) without using the correct password/keyfile(s) or correct encryption keys. Entire file system is encrypted (e.g., file names, folder names, contents of every file, free space, meta data, etc). 

Files can be copied to and from a mounted TrueCrypt volume just like they are copied to/from any normal disk (for example, by simple drag-and-drop operations). Files are automatically being decrypted on the fly (in memory/RAM) while they are being read or copied from an encrypted TrueCrypt volume. Similarly, files that are being written or copied to the TrueCrypt volume are automatically being encrypted on the fly (right before they are written to the disk) in RAM. Note that this does not mean that the whole file that is to be encrypted/decrypted must be stored in RAM before it can be encrypted/decrypted. There are no extra memory (RAM) requirements for TrueCrypt. For an illustration of how this is accomplished, see the following paragraph. 

Let's suppose that there is an .avi video file stored on a TrueCrypt volume (therefore, the video file is entirely encrypted). The user provides the correct password (and/or keyfile) and mounts (opens) the TrueCrypt volume. When the user double clicks the icon of the video file, the operating system launches the application associated with the file type – typically a media player. The media player then begins loading a small initial portion of the video file from the TrueCrypt-encrypted volume to RAM (memory) in order to play it. While the portion is being loaded, TrueCrypt is automatically decrypting it (in RAM). The decrypted portion of the video (stored in RAM) is then played by the media player. While this portion is being played, the media player begins loading another small portion of the video file from the TrueCrypt-encrypted volume to RAM (memory) and the process repeats. This process is called on-the-fly encryption/decryption and it works for all file types (not only for video files).

Major Features:

  1. Creates a virtual encrypted disk within a file and mounts it as a real disk. 
  2. Encrypts an entire partition or storage device such as USB flash drive or hard drive.
  3. Encrypts a partition or drive where Windows is installed (pre-boot authentication).
  4. Encryption is automatic, real-time (on-the-fly) and transparent.
  5. Parallelization and pipelining allow data to be read and written as fast as if the drive was not encrypted.
  6. Encryption can be hardware-accelerated on modern processors.
  7. Provides plausible deniability, in case an adversary forces you to reveal the password:
  • Improvements and bug fixes:
    • Minor improvements and bug fixes  (Windows, Mac OS X, and Linux)
  • Windows 7/Vista/XP
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