Cryptomator: Transparent client encryption of your files in the cloud

Cryptomator is provided free of charge as an open-source project despite the high development effort and is therefore dependent on donations.

Cryptomator offers multi-platform transparent client-side encryption of your files in the cloud.

Cryptomator

Features of Cryptomator 

  • Works with Dropbox, Google Drive, OneDrive, ownCloud, Nextcloud and any other cloud storage service which synchronizes with a local directory
  • Open Source means: No backdoors, control is better than trust
  • Client-side: No accounts, no data shared with any online service
  • Totally transparent: Just work on the virtual drive as if it were a USB flash drive
  • AES encryption with 256-bit key length
  • File names get encrypted
  • Folder structure gets obfuscated
  • Use as many vaults in your Dropbox as you want, each having individual passwords
  • One thousand commits for the security of your data!! 🎉

Privacy

  • 256-bit keys (unlimited strength policy bundled with native binaries)
  • Scrypt key derivation
  • Cryptographically secure random numbers for salts, IVs and the masterkey of course
  • Sensitive data is wiped from the heap asap
  • Lightweight: Complexity kills security

Consistency

  • HMAC over file contents to recognize changed ciphertext before decryption
  • I/O operations are transactional and atomic, if the filesystems support it
  • Each file contains all information needed for decryption (except for the key of course), no common metadata means no SPOF

Changelog v1.8

What’s New

  • Recovery: Enable conversion of Hub to password-based authentication for a vault with the recovery key(#2840)

Misc

  • Translation updates

Download && Use

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