Subcategory: File Backup and Sync
Platform: Android, iOS, Linux, OS X, Windows
License: Proprietary, Freeware, Trialware
First release: 2011
Tresorit – a proprietary sync, cloud based service which encrypts files using client-side encryption with AES-256 before uploading them. It work seamlessly across offices, and on the road without giving up on security. Upload and access your files with zero-knowledge encryption from any desktop and mobile device using Windows, macOS, Linux, Android, iOS, and from any browser.
– Public key cryptography – Tresorit encrypts every file on your devices before they are uploaded to the cloud applying the Advanced Encryption Standard algorithm using 256-bit keys. Your files never get decrypted on Tresorit’s servers.
– Zero-knowledge – Zero-knowledge privacy means that no one, not even Tresorit, can look into the content of your files. Only you and those who you decide to share with can access them.
– Client-side integrity protection – Applying a Message Authentication Code to each file, Tresorit guarantees that the contents of your files cannot be modified without your knowledge, even if somebody hacks our system.
Free edition (Send) for personal usage, and 30 day trial of of other solutions are available.