![]() ![]() Any files you drag in the folder or into the interface will automatically upload to the server.Īny folder on your computer can be set up as a Tresor through right-click menus or a software upload. It will set up your account password and a sync folder that they call a “Tresor” (German for safe or vault). The desktop software is the primary interface for the service. ![]() Regardless, this hybrid method not only keeps your data secure and private, but also allows for sharing and access options previously not available with encryption-based services. This is a relatively simplified explanation of what’s going on, but further technical details can be found at this link about sharing, another about roaming profiles, this one about passwords, or their whitepaper. Your password still never leaves your browser or device. The encrypted files come into your local session, the master key is generated from your password which is stored only on your device or browser, and is used to decrypt the files. Web, shared links, and app sessions are also authenticated through a complex non-optional two-factor authentication, which assigns a temporary device certificate for the session. This method keeps data private on the server, while still allowing for outside access options, collaboration, and sharing links to be changed on the fly. But with Tresorit, your roaming profile is encrypted with this master key before being uploaded to the server, and updated with changes after. Like encryption-based services, a 256-bit “master key” is generated that never leaves your machine. Like an authentication-based service, an ACL (“roaming profile”) is stored on the server that manages file encryption keys and sharing permissions. ![]() Tresorit employs a hybrid of these two methods. Even if the password is deleted after the session ends, it was stored at some point. However, these services cannot protect your files anywhere outside the desktop, since a shared file, a web login, or an app all require your password to be given to the server to decrypt the files, which defeats the purpose. All encryption keys are kept on your machine, keeping your data safe server-side access. On the other hand, encryption-based services like SpiderOak turn your computer into the ACL. This so-called authentication-based security does not protect data against the prying eyes of data admins or government queries. The ACL then updates when you share or upload new files. Most cloud services like Dropbox, OneDrive, and iCloud use an Access Control List (ACL) on the server to keep your user credentials, encryption and SSL certificates, and access rights for shared files. But where many EU-based services will stop there, Tresorit follows it up with an interesting and innovative end-to-end encryption implementation. They also secure data transfers with TLS encryption and offer two-factor authentication. Tresorit is based out of Switzerland, whose data privacy laws prevent third parties from accessing your data without your explicit permission. Tresorit’s high price makes that a difficult proposition, but for those who want a deep cloud collaboration service with the best in security and privacy, it may be worth it. But it’s still a bit of a one-trick pony with a lot of caveats, best combined with backup solutions like SpiderOak or Backblaze. Tresorit has some of the best security and privacy in the business and an impressive set of sharing and collaboration features. Expensive pricing model and worthless free option.Deleted local files also removed from cloud.Password-protected links only on business accounts.Mandatory expiration and download limits on links.Team management options on business accounts.Secure software and apps for nearly every platform.Robust sharing and collaboration options.Solid security and no-knowledge privacy.Servers based out of privacy-focused Switzerland. ![]()
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