[Kde-pim] GpgME++ crashes on signature creation

[Diego Casella ([Po]lentino)]

Hi guys,
in my GSoC project I'm trying to create a detached, ascii armored signature
of a file using gpgme++. So I've done the following steps:
* subclassed PassphraseProvider in order to show a dialog to enter the
password, and assigned to the context with setPassphraseProvider();
* called startKeyListing, and loop for the desired secret key;
* save the key, then call endKeyListing;
* add the key with addSigningKey() function;
* call startSigning().
These steps appear reasonable to me, however I must be wrong somewhere
because the app keep crashing on startSigning() , and the backtrace
complains on line 85 of callbacks.cpp (when free'ing the passphrase).
Does anybody know what I'm missing, and point me in the right direction?
Cheers

Diego.

-- 
H: Who is Watson without Sherlock Holmes?
G: Watson was a genius in his own right.
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