On Sun Jul 26, 2026 at 12:07 AM BST, scuffbox via Gnupg-users wrote: > On upgrading to 2.5.x (2.5.20 and 2.5.21) recently to test Kyber keys, > I have noticed that any preferences relating to cipher choice are > being ignored. > > AES256 appears to be used for encryption to Kyber subkeys regardless > of the contents of the public key's cipher preferences and the local > config's personal-cipher-preferences.
Indeed. This is a deliberate behaviour, see the discussion on issue https://dev.gnupg.org/T7472. When all the keys we are encrypting to are Kyber keys, then AES-256 is forcefully used regardless of the preferences. You can still force the use of any other supported encryption algorithm with the `--cipher-algo` option. - Damien
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