[Solved] gpg protected key vs. passphrase

[Yminus]

When encrypting a partition using cryptsetup luks you have to choose between passphrase or keyfile. Some people decide to use a keyfile and encrypt it using gpg. So to decrypt the partition the keyfile has to be decrypted using a passphrase for gpg.

So what is the advantage of using a gpg protected keyfile over a passphrase?

[Hu]

A keyfile can contain substantially more material and be much more random, making it more difficult to mount a brute force attack. However, if you assume that the attacker can obtain the enciphered keyfile, then its value is reduced significantly.

[Yminus]

Thank you, this answers my question.
Since it is more likely to loose a keyfile than to forget a passphrase and in my case the safety of the data is more important than its the security I prefer passphrases to keyfiles.