Decryption fails with 4096bit key on SmartCard

Werner Koch wk at
Tue Sep 22 11:08:20 CEST 2015

On Tue, 22 Sep 2015 08:51, marcus.ilgner at said:

> gpg: public key decryption failed: Missing item in object
> gpg: decryption failed: No secret key

This is probably in scdaemon.  Thus you should add

--8<---------------cut here---------------start------------->8---
log-file SOMEFILE
debug ipc,cardio
--8<---------------cut here---------------end--------------->8---

into scdaemon.conf, "gpgconf --kill scdaemon", and watch out for the
error message in the log file.  This likely an error code 0x6a88 from
the card, we need to see the commands prior to that.  Take care that you
redact the PIN in the log file.

> which seems to
> discuss the same problem but as it's already a couple of years old I assume

That is not related.



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