961e65424e
crypt_deactivate_* fail earlier without noisy dm retries when other device holders detected. The early detection works if: a) other device-mapper device has a hold reference on the device - or - b) mounted fs is detected on the device Any deactivation flag CRYPT_DEACTIVATE_FORCE or CRYPT_DEACTIVATE_DEFERRED will disable this detection
What the ...?
Cryptsetup is utility used to conveniently setup disk encryption based on DMCrypt kernel module.
These include plain dm-crypt volumes, LUKS volumes, loop-AES and TrueCrypt (including VeraCrypt extension) format.
Project also includes veritysetup utility used to conveniently setup DMVerity block integrity checking kernel module and, since version 2.0, integritysetup to setup DMIntegrity block integrity kernel module.
LUKS Design
LUKS is the standard for Linux hard disk encryption. By providing a standard on-disk-format, it does not
only facilitate compatibility among distributions, but also provides secure management of multiple user passwords.
In contrast to existing solution, LUKS stores all setup necessary setup information in the partition header,
enabling the user to transport or migrate his data seamlessly.
Last version of the LUKS format specification is available here.
Why LUKS?
- compatiblity via standardization,
- secure against low entropy attacks,
- support for multiple keys,
- effective passphrase revocation,
- free.
Project home page.
Frequently asked questions (FAQ)
Download
All release tarballs and release notes are hosted on kernel.org.
The latest cryptsetup TESTING version is 2.0.0-rc0
- cryptsetup-2.0.0-rc0.tar.xz
- Signature cryptsetup-2.0.0-rc0.tar.sign (You need to decompress file first to check signature.)
- Cryptsetup 2.0.0-rc0 Release Notes.
The latest cryptsetup version is 1.7.5
- cryptsetup-1.7.5.tar.xz
- Signature cryptsetup-1.7.5.tar.sign (You need to decompress file first to check signature.)
- Cryptsetup 1.7.5 Release Notes.
Previous versions
- Version 1.7.4 - Signature - Release Notes.
- Version 1.7.3 - Signature - Release Notes.
- Version 1.7.2 - Signature - Release Notes.
- Version 1.7.1 - Signature - Release Notes.
- Version 1.7.0 - Signature - Release Notes.
Source and API docs
For development version code, please refer to source page, mirror on kernel.org or GitHub.
For libcryptsetup documentation see libcryptsetup API page.
The libcryptsetup API/ABI changes are tracked in compatibility report.
NLS PO files are maintained by TranslationProject.
Help!
Please always read FAQ first. For cryptsetup and LUKS related questions, please use the dm-crypt mailing list, dm-crypt@saout.de.
If you want to subscribe just send an empty mail to dm-crypt-subscribe@saout.de.
You can also browse list archive or read it through web interface.