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TrueCrypt User Guide
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- Compliance with Standards and Specifications
- Source Code
Embedded Backup Headers
Each TrueCrypt volume created by TrueCrypt 6.0 or later contains an embedded backup header, located at the end of the volume (see above). The header backup is not a copy of the volume header because it is encrypted with a different header key derived using a different salt (see the section Header Key Derivation, Salt, and Iteration Count). When the volume password and/or keyfiles are changed, or when the header is restored from the embedded (or an external) header backup, both the volume header and the backup header (embedded in the volume) are re-encrypted with different header keys (derived using newly generated salts – the salt for the volume header is different from the salt for the backup header). Each salt is generated by the TrueCrypt random number generator (see the section Random Number Generator). For more information about header backups, see the subsection Tools -> Restore Volume Header in the chapter Main Program Window. * Provided that the options Quick Format and Dynamic are disabled and provided that the volume does not contain a filesystem that has been encrypted in place (note that TrueCrypt does not allow the user to create a hidden volume within such a volume). 145 Compliance with Standards and Specifications To our best knowledge, TrueCrypt complies with the following standards, specifications, and recommendations: • ISO/IEC 10118-3:2004 [21] • FIPS 197 [3] • FIPS 198 [22] • FIPS 180-2 [14] • NIST SP 800-3E [24] • PKCS #5 v2.0 [7] • PKCS #11 v2.20 [23] The correctness of the implementations of the encryption algorithms can be verified using test vectors (select Tools > Test Vectors) or by examining the source code of TrueCrypt. Source Code TrueCrypt is open-source and free software. The complete source code of TrueCrypt (written in C, C++, and assembly) is freely available for peer review at: http://www.truecrypt.org/ |
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