Could not extend expiration date

Johannes Zarl johannes at
Mon Feb 10 21:58:12 CET 2014


It looks like you use an offline master key and use subkeys for signing and 
decryption. You can check this by looking at your secret keyring:

gpg2 -K
sec#  4096R/DEADBEEF 2013-10-25 [expires: 2018-10-24]
uid                  Some Body <someone at> <jzarl at>
ssb>  2048R/08152323 2013-10-25
ssb>  2048R/42424242 2013-10-25

In this case, the '#' sign after the "sec" means that the private key is not 

On Monday 10 February 2014 20:36:15 Pericle Unico wrote:
> C:\Users\me\Downloads>gpg -vvv -s volterra_saggi_scientifici.epub
> gpg: using character set `CP850'
> gpg: using PGP trust model
> gpg: key 3D2B665D: accepted as trusted key
> gpg: using subkey 658682A5 instead of primary key 3D2B665D

If I read this correctly, your "master" key is 658682A5, but you usually use 
the subkey 3D2B665D.


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