Cryptomator ==================== [](https://travis-ci.org/cryptomator/cryptomator) [](https://gitter.im/cryptomator/cryptomator?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) Multiplatform transparent client-side encryption of your files in the cloud. If you want to take a look at the current beta version, go ahead and get your copy of cryptomator on [Cryptomator.org](https://cryptomator.org) or clone and build Cryptomator using Maven (instructions below). ## Features - Totally transparent: Just work on the encrypted volume, as if it was an USB flash drive - Works with Dropbox, OneDrive (Skydrive), Google Drive and any other cloud storage, that syncs with a local directory. - In fact it works with any directory. You can use it to encrypt as many folders as you like - AES encryption with 256-bit key length - Client-side. No accounts, no data shared with any online service - Filenames get encrypted too - No need to provide credentials for any 3rd party service - Open Source means: No backdoors. Control is better than trust - Use as many encrypted folders in your Dropbox as you want. Each having individual passwords - No commercial interest, no government agency, no wasted taxpayers' money ;-) ### Privacy - 256 bit keys (unlimited strength policy bundled with native binaries - 128-bit elsewhere) - Scrypt key derivation - Cryptographically secure random numbers for salts, IVs and the master key of course - Sensitive data is swiped from the heap asap - Lightweight: [Complexity kills security](https://www.schneier.com/essays/archives/1999/11/a_plea_for_simplicit.html) ### Consistency - HMAC over file contents to recognize changed ciphertext before decryption - I/O operations are transactional and atomic, if the file systems support it - Each file contains all information needed for decryption (except for the key of course). No common metadata means no [SPOF](http://en.wikipedia.org/wiki/Single_point_of_failure) ## Building #### Dependencies * Java 8 + JCE unlimited strength policy files (needed for 256-bit keys) * Maven 3 * Optional: OS-dependent build tools for native packaging (See [Windows](https://github.com/cryptomator/cryptomator-win), [OS X](https://github.com/cryptomator/cryptomator-osx), [Debian](https://github.com/cryptomator/cryptomator-deb)) ## License Distributed under the MIT X Consortium license. See the LICENSE file for more info.