Non-encrypted filename visible

[tobihagemann]

10% sounds a lot.

How much larger are encrypted files?

You can actually calculate the ciphertext size to the last byte: Each encrypted file gets a 88 bytes file header, see: https://docs.cryptomator.org/en/1.5/security/architecture/#file-header-encryption Every 32 KiB of data, 48 bytes will be added (nonce + MAC), see: https://docs.cryptomator.org/en/1.5/security/architecture/#file-content-encryption But to make it simpler, let’s put the file header aside. You can roughly expect a 0,146484375% increase. A 100 GB file cleartext file will then b…

However, this comparison is on a per-file basis. The vault contains some more bytes because of its directory structure (e.g., each directory has a directory file with 36 bytes in size, or long filenames have a separate file for its long filename). But yeah, 10% still isn’t plausible.