Linux command
cryfs 命令
安全
权限或系统影响较大，执行前请核对目标。
常用示例
Create and mount
cryfs [path/to/cipher_dir] [path/to/mount_point]
Mount with a specific configuration
cryfs --config [cryfs.config] [cipher_dir] [mount_point]
Unmount
cryfs-unmount [path/to/mount_point]
Change the encryption password
cryfs-change-password [path/to/cipher_dir]
Show filesystem information
cryfs --show-ciphers
Mount in foreground
cryfs -f [cipher_dir] [mount_point]
说明
CryFS is a cryptographic filesystem designed specifically for cloud storage services like Dropbox, Google Drive, or OneDrive. Unlike other encrypted filesystems, CryFS encrypts not just file contents but also file sizes, metadata, and directory structure. Files are split into fixed-size blocks that are individually encrypted and stored with random names. This prevents cloud providers and attackers from learning anything about your data, including which files changed and how large they are. The encrypted data is stored in the cipher directory, which can be synced with cloud services. The mount point shows the decrypted view of your files. CryFS uses authenticated encryption with AES-256-GCM by default.
参数
- -c _FILE_, --config _FILE_
- Use specified configuration file.
- -f, --foreground
- Run in foreground instead of daemonizing.
- --allow-filesystem-upgrade
- Allow upgrading the filesystem format.
- --show-ciphers
- Show available cipher options.
- --unmount-idle _MINUTES_
- Automatically unmount after idle time.
- --logfile _FILE_
- Write logs to specified file.
FAQ
What is the cryfs command used for?
CryFS is a cryptographic filesystem designed specifically for cloud storage services like Dropbox, Google Drive, or OneDrive. Unlike other encrypted filesystems, CryFS encrypts not just file contents but also file sizes, metadata, and directory structure. Files are split into fixed-size blocks that are individually encrypted and stored with random names. This prevents cloud providers and attackers from learning anything about your data, including which files changed and how large they are. The encrypted data is stored in the cipher directory, which can be synced with cloud services. The mount point shows the decrypted view of your files. CryFS uses authenticated encryption with AES-256-GCM by default.
How do I run a basic cryfs example?
Run `cryfs [path/to/cipher_dir] [path/to/mount_point]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -c _FILE_, --config _FILE_ do in cryfs?
Use specified configuration file.