distinguishing public from secret keys with gpgme

[Hans-Christoph Steiner]

On 05/24/2013 01:22 PM, Werner Koch wrote:
> On Fri, 24 May 2013 18:04, hans at guardianproject.info said:
>> Hey all,
>>
>> Using gpgme 1.4.1, I'm trying to pick out which keys in the keyring have the
>> secret component, and can be used for signing and decryption.  I've tried:
>>
>>     return key->secret
>>
>> and
>>
>>     jboolean hasSecretKey = 0;
>>     gpgme_subkey_t subkey;
>>     for(subkey = key->subkeys; subkey; subkey = subkey->next)
>>         if (subkey->secret)
>>             return 1;
>>     return 0;
>>
>> Both of these always turn up false for every key in the keyring.  `gpg2
>> --list-secret-keys` shows that I have one secret key.  What am I missing?
> 
> You need to pass true as the last argument to gpgme_op_keylist_start to
> list the secret keys.  Unfortunately this will only return secret keys
> thus if you want to have a combined listing you need to match them.

Ah perfect, that was easy.  I had assumed that the gnupg-for-java was a lot
more complete than it is.  But now its getting more complete :)  I hope to
split it out of gnupg-for-android again, so its usable in any java app.

.hc