Store revoke cert. in symmetric file?

[Chris Poole]

I want to check I'm not doing something stupid.

I have backed up my .gnupg directory, including my revoke certificate,
to a symmetrically-encrypted tar file.

The password for this is a 50 character randomly-generated, stored in
my KeePass database (protected via a strong passphrase that I know).

---

I should be fine to keep this file and the KeePass database on many
locations, and I'm not somehow compromising my private key or revoke
certificate? (Standard CAST cipher for the gpg file, AES-256 for the
KeePass DB.)

Thanks.