Last Updated on October 23, 2023
cryptmount is a software tool for managing encrypted file systems under Linux.
It uses the device mapper and dm-crypt infrastructure to provide transparent encryption of file systems stored in disk partitions or within ordinary files.
cryptmount is free and open source software.
Features include:
- Interactive setup script is supplied to allow basic, but effective, encrypted file systems to be created.
- Filesystems can be (un)mounted whenever needed by ordinary users, without requiring superuser/administrator privileges.
- Multiple encrypted filesystems can be stored within a single disk partition. Encrypted swap partitions are supported and can be configured automatically on system boot-up.
- Configuration information about encrypted filesystems is stored within a free-format human-readable file.
- Access keys can be protected by a wide range of encryption and hashing algorithms provided by the libgcrypt library, which can be compatible with the OpenSSL command-line tool. They can be stored and backed-up separately from the filesystem that they protect.
- Access to improved functionality in the kernel.
- Transparent support for filesystems stored on either raw disk partitions or loopback files.
- Separate encryption of filesystem access keys, allowing access passwords to be changed without re-encrypting the entire filesystem.
- Storing multiple encrypted filesystems within a single disk partition, using a designated subset of blocks for each.
- Rarely used filesystems do not need to be mounted at system startup.
- Un-mounting of each filesystem is locked so that this can only be performed by the user that mounted it, or the superuser.
- Encrypted filesystems compatible with cryptsetup.
- Encrypted access-keys can be chosen to be compatible with openssl, or managed via libgcrypt, or built-in SHA1/Blowfish ciphers.
- Support for encrypted swap partitions (superuser only).
- Support for setting up encrypted filesystems or crypto-swap at system boot-up.
Website: cryptmount.sourceforge.net
Support:
Developer: RW Penney
License: GNU General Public License
cryptmount is written in C. Learn C with our recommended free books and free tutorials.
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