This means that the provider has no knowledge – zero knowledge – and the users’ own data remains completely private. It describes a cloud storage or a cloud encryption solution where the provider of the solution itself does not have access to the users’ password and content. Info: The term zero knowledge in the context of data encryption was first coined by Edward Snowden. You can read all details and information about how exactly the encryption of files works in the technical overview of Boxcryptor. For this reason, Boxcryptor is – just like Cryptomator – a zero knowledge provider. This way, the password remains exclusively on the user’s device and we at Boxcryptor itself cannot access your password and therefore cannot access your cloud content. The password hash is transmitted, hashed a second time on the Boxcryptor servers, and the result is stored. The user’s password is hashed several times on the user’s device and is set differently to obtain a password hash and a password key. However, this is probably not understandable for all users without IT knowledge, as it is written on a high technical level.īoxcryptor encrypts files with AES and RSA encryption. A short technical overview can be found on the help pages docs.cryptomator. According to the website, the password is protected with scrypt – a password-based key derivation function – and path structures are obfuscated. In Cryptomator files are encrypted with AES with 256-bit key length. Encryption and Password Protection in Cryptomator So, if a file is changed, not the whole content has to be re-encrypted and synchronized – as with many other encryption tools – but only the file that changed. Just like with Boxcryptor, all files are encrypted individually. Since version 1.5.0, released in April 2020, selected vaults can be locked and unlocked – not all vaults lock or unlock at the same time. The user can specify the location of the vault, for example a cloud provider. The data stored in the vault is then encrypted. If you use Cryptomator, you can create vaults that are hosted on a virtual drive.
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