Encrypted Files

securefs – filesystem in userspace (FUSE) with transparent encryption

securefs is a filesystem in userspace (FUSE) with transparent encryption (when writing) and decryption (when reading).

securefs mounts a regular directory onto a mount point. The mount point appears as a regular filesystem, where one can read/write/create files, directories and symbolic links. The underlying directory will be automatically updated to contain the encrypted and authenticated contents.

securefs is free and open source software.

Key Features

  • Authenticated encryption (hence secure against chosen ciphertext attacks).
  • Probabilistic encryption (hence provides semantical security).
  • Efficient cloud synchronization (not a single preallocated file as container).
  • File contents:
    • Uses GCM for encryption and integrity.
  • File names:
    • Uses AES-SIV for encryption.
  • Cross-platform support – runs under Linux, BSD, macOS, and Windows.

Website: github.com/netheril96/securefs
Support:
Developer: Siyuan Ren
License: MIT License

securefs is written in C++. Learn C++ with our recommended free books and free tutorials.


Related Software

Encrypted FUSE-based file systems
CryptomatorMulti-platform transparent client-side encryption of files in the cloud
gocryptfsEncrypted overlay filesystem written in Go
CryFSCryptographic filesystem for the cloud
securefsAuthenticated and probabilistic encryption with efficient cloud synchronization
EncFSEncrypted filesystem in user-space
rcryptfsRead and write encrypted repositories using common gocryptfs settings.

Read our verdict in the software roundup.


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