![]() So what about its security? Cryptomator encrypts both the file contents as well as filenames (the folder structure is obfuscated as well) using AES with 256-bit key length, while the passphrase is protected against bruteforce attacks using Scrypt, a password-based key derivation function (which is designed to be computationally intensive, so the attacker would need to perform the operation billions of times). However, directory listing may get slow for cases in which the directory contains a large number of files (1000+). The Cryptomator developers say that there's no limit on the size of a vault in both bytes or number of files, and the performance will not suffer significantly if you use some very large files. The application can also be used to simply encrypt a folder on your system or some external drive. While Cryptomator is designed to encrypt your cloud storage data, you don't have to use it with a cloud storage provider. You can even create multiple vaults for a single cloud storage provider, so for example you can have a vault for personal use, as well as a vault that's shared with your colleagues, each with its own individual password.vailable on GitHub, but it's not recommended to be used by inexperienced users for security reasons. Using Cryptomator, you can encrypt your whole cloud storage, or only a few important, sensitive files such as documents or whatever you like. Update: Cryptomator 1.4.0 was released, and it includes support for FUSE on Linux and macOS, and Dokany on Windows. ![]() Internally, Cryptomator uses WebDAV to provide the virtual, unencrypted drive, but FUSE integration is also in the works for Linux and Mac, and there's already a Cryptomator beta version which includes this. The tool, which is very easy to use, supports any cloud storage provider that synchronizes with a local directory, so it works with Dropbox, Google Drive (Google Backup and Sync or whatever Google calls it nowadays), OneDrive, ownCloud, and so on.īecause Cryptomator uses client-side encryption, it means your data is first encrypted and only then synchronized with the online cloud storage service, so no unencrypted data leaves your computer. If you're looking for a cross-platform solution to encrypt your cloud storage files, I suggest you give Cryptomator a try.Ĭryptomator is a free and open source software tool that provides client-side encryption for your cloud storage files, available for Windows, Mac, Linux, iOS and Android.
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