Cryptomator
| Company type | Open source software |
|---|---|
| Industry | Software, Cybersecurity |
| Founder | Tobias Hagemann |
| Products | Encryption software |
| Website | cryptomator |
Cryptomator is an open source encryption software designed to provide seamless, client-side encryption specifically for personal cloud storage environments. It secures each individual file prior to synchronization with either cloud or local storage services. Compatible with major operating systems such as Android, iOS, Windows, Mac, and Linux, Cryptomator enjoys widespread platform support.
Utilizing AES-256 encryption along with WebDAV, the software’s open-source nature guarantees transparency, reliability, and ongoing maintenance through community-driven bug fixes. Its approach of encrypting files on a per-file basis significantly strengthens protection for users relying on cloud storage.
History
Cryptomator was subjected to a Cure53 security evaluation in 2017, where it was commended for its strong cryptographic design. However, the assessment also raised concerns about the use of AES in ECB mode; founder Tobias Hagemann clarified this as a false positive linked to the specifics of the Java Cryptography Extension.
The launch of Cryptomator 2.0 for iOS occurred in December 2021. This version was redeveloped using Swift and incorporated tightly with the native iOS Files application, resulting in improved usability and deeper platform integration.
In January 2022, an update was released to fix a vulnerability that exposed encrypted file paths to Apple due to interactions with Apple’s file system and File Provider Extension API. This update highlighted the company’s dedication to security and its prompt response to emerging issues.
Reception
In 2016, Cryptomator earned the CeBIT innovation award in the category of "Usable Security and Privacy," recognizing its significant contribution to secure cloud storage technologies.