Comparison of disk encryption software
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Technical feature comparison of different disk encryption software.
General information
| Name | Developer | Introduced in | Licensing | Operating systems supported |
|---|---|---|---|---|
| BestCrypt | Jetico | 1993 | Commercial, limited source code | Linux 2.6, Windows NT-based, Windows 9x, Windows 3.1, DOS |
| TrueCrypt | TrueCrypt Foundation | 2004-02-02 | Free, open source (custom) | Linux 2.6, Windows NT-based |
| dm-crypt | — | 2004-03-11[1] | Free, open source (GPL) | Linux 2.6 |
| FreeOTFE | Sarah Dean | 2004-10-10 | Free, open source (custom) | Windows NT-based, Pocket PC |
Layering
| Name | whole disk | Partition | Logical volume | File | Swap |
|---|---|---|---|---|---|
| BestCrypt | No | ? | No | Yes | Yes |
| TrueCrypt | No | ? | No | Yes | No |
| dm-crypt | Yes | Yes | Yes | Yes[2] | Yes |
| FreeOTFE | No | ? | No | Yes | ? |
Modes of operation
| Name | Plain CBC | CBC with ESSIV | LRW |
|---|---|---|---|
| BestCrypt | Yes | No | No |
| TrueCrypt | Yes | No | Yes[3] |
| dm-crypt | Yes | Yes | Yes[4] |
| FreeOTFE | Yes | Yes | No |
Notes and references
- ^ Included in Linux 2.6.4: http://lwn.net/Articles/75404/
- ^ dm-crypt can encrypt a file-based volume when used with the losetup utility included with all major Linux distributions
- ^ New containers created with TrueCrypt versions 4.1 and up use LRW, old containers use plain CBC
- ^ Starting with Linux kernel version 2.6.20: http://lwn.net/Articles/213650/
See also
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