Cryptomator – Encrypt files on your cloud storage

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  • Cryptomator

    Multi-platform transparent client-side encryption of your files in the cloud

    Another comment had a library to their GitHub, which after a bit of looking mentions fuse :

  • age

    A simple, modern and secure encryption tool (and Go library) with small explicit keys, no config options, and UNIX-style composability.

    Single binary alternative, open source:

    From former head of Go security team at Google.

  • InfluxDB

    Build time-series-based applications quickly and at scale.. InfluxDB is the Time Series Platform where developers build real-time applications for analytics, IoT and cloud-native services. Easy to start, it is available in the cloud or on-premises.

  • siv-mode

    RFC 5297 SIV mode of operation in Java

    > Cryptomator's technology meets the latest standards and encrypts both files and filenames with AES and 256 bit key length.

    I know you're advertising to slightly less technical users, but please provide some documentation explaining your choices! AES alone doesn't say anything about the mode of operation, which makes or breaks the scheme.

    From a little sleuthing, it seems likely that they're using GCM-SIV[1], which is a good choice.


  • securefs

    Filesystem in userspace (FUSE) with transparent authenticated encryption

    If it is not against the rules, I want to promote my project ( here. It is essentially the same functionality, but with authenticated encryption, better password hashing and optionally file size obfuscation (but no fancy UI).

  • DroidFS

    Encrypted overlay filesystems implementation for Android. Also available on gitea:

  • cryfs

    Cryptographic filesystem for the cloud

    True, they can see files sizes and you don't get integrity. But for less than top-secret stuff I'd take that tradeoff over CryFS performance issues with large files:

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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