{gnupg 2.1.6} Howto change s2k cipher from AES -> AES256?

[thomas]

Hi,

I'm trying with gnupg version 2.1.6.

Based on the changelog: 
<https://gnupg.org/faq/whats-new-in-2.1.html>

Is there a way to change the encryption-cipher for the 
secret Keys in "private-keys-v1.d" ?

I tried it with:

  gpg2 --openpgp --s2k-cipher-algo AES256 --s2k-digest-algo SHA512 \
  --s2k-mode 3 --s2k-count 65000000 --edit-key Key-id

  gpg> passwd --> change passphrase --> save

But this didn't work for me.

With the default config the secret keys are encrypted and stored
with AES128 and SHA1.

How to change it?


-- 
Thank you and best regards,
thomas