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The newest available version (v7.2) is decrypt only, its own authenticity and real reasons behind the movement are unclear, and its usage is not recommended. Disk: Whether the entire physical disk or logical volume can be encrypted, including the partition tables and master boot record. Note that this does not imply that the encrypted disk can be utilized as the boot disc itself; refer to pre-boot authentication in the attributes comparison table. .
File: When the encrypted container can be stored in a file (normally implemented as encrypted loop apparatus ).
Swap space: Whether the swap area (called a"pagefile" on Windows) can be encrypted individually/explicitly.
Different modes of operation supported by the software. Note that an encrypted volume can only use one mode of operation.
CBC with predictable IVs: The CBC (cipher block chaining) mode where initialization vectors are statically derived from the industry number and are not secret; this means that IVs are re-used when overwriting a sector and the vectors can easily be guessed by an attacker, leading to watermarking attacks.
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CBC with secret IVs: The CBC mode where initialization vectors are statically derived from the encryption key and sector number. The IVs are secret, but they're re-used with overwrites. Strategies for this include ESSIV and encrypted industry numbers (CGD).
CBC with random per-sector keys: The CBC mode where random keys are generated for every sector when it's written to, hence does not exhibit the common weaknesses of CBC with re-used initialization vectors. The individual sector keys are saved on disk and encrypted with a master key. (Watch GBDE for details).
LRW: The Liskov-Rivest-Wagner tweakable narrow-block manner, a style of operation specifically designed for disk encryption. Superseded by the more secure XTS manner due to security concerns.126
XTS: XEX-based Tweaked CodeBook mode (TCB) with CipherText Stealing (CTS), the SISWG (IEEE P1619) standard for disk encryption.
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Company and product name change into Pointsec"Protect Data Security Inc. changes name to Pointsec Mobile Technologies Inc". Archived from the original on 2004-08-20. Retrieved 2008-09-03.
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Dm-crypt was first included in Linux kernel version 2.6.4: Clemens Fruhwirth. "LUKS version history". Archived from the original on 2006-12-25. Retrieved 2006-12-24.
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2 Although CipherShed can be built under FreeBSD, It's not recommended to run it due to bugs and instabilities when CipherShed is attempted to be used
A b 3 third party program allows to open containers encryptes with AES-256, SHA-512 hash and FAT file system
12 Though TrueCrypt can be built under FreeBSD, it is not recommended to run it because of bugs and instabilities when TrueCrypt is tried to be used
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13 Third party program allows to encrypt and decrypt VeraCrypt containers (only available in the paid version)
a b "BitLocker Drive Encryption Technical Overview". Microsoft. Archived from the original on 2008-02-24. Retrieved 2008-03-13.
a b c d Roland C. Dowdeswell, John Ioannidis. "The CryptoGraphic Disk Driver" (PDF). CGD design paper. Retrieved 2006-12-24.
Federico Biancuzzi (2005-12-21). "Inside NetBSD's CGD". interview with Roland Dowdeswell. ONLamp.com. Retrieved 2006-12-24.
"Operating Systems Supported for System Encryption" (PDF). CipherShed Documentation. CipherShed Project. Retrieved 2014-12-27.
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Although each volume encrypted with CipherShed can only have one active master key, it's possible to get its contents via more than one header. Every header can have a different password and/or keyfiles if any (cf. TrueCrypt FAQ: Can there be a way for an administrator to reset directory a volume password or pre-boot authentication password when a user forgets it (or loses a keyfile)).
A b"Some encryption programs use TPM to check this prevent attacks. Will TrueCrypt use it too". TrueCrypt FAQ. TrueCrypt Foundation. Archived from the original on 2013-04-16. Retrieved 2014-05-28.