Articles in this category How does the zero knowledge end to end encryption work? We use AES 256 bit for our end to end encryption. Your password is being hashed and then acts as a master key. This master key is then used to encrypt metadata of all files and folders in your account... 172 (11) How are previews created? Image and video previews are actually quite a bit hard to generate when using end to end encryption. First of all you need to know how files are uploaded to Filen: On the client side, your Filen clien... 57 (1)