cdk_error_t
_cdk_copy_seckey (cdk_pkt_seckey_t* dst, cdk_pkt_seckey_t src)
{
cdk_pkt_seckey_t k;
int i;
if (!dst || !src)
return CDK_Inv_Value;
*dst = NULL;
k = cdk_calloc (1, sizeof *k);
if (!k)
return CDK_Out_Of_Core;
memcpy (k, src, sizeof *k);
_cdk_copy_pubkey (&k->pk, src->pk);
if (src->encdata)
{
k->encdata = cdk_calloc (1, src->enclen + 1);
if (!k->encdata)
return CDK_Out_Of_Core;
memcpy (k->encdata, src->encdata, src->enclen);
}
_cdk_s2k_copy (&k->protect.s2k, src->protect.s2k);
for (i = 0; i < cdk_pk_get_nskey (src->pubkey_algo); i++)
{
k->mpi[i] = gcry_mpi_copy (src->mpi[i]);
gcry_mpi_set_flag (k->mpi[i], GCRYMPI_FLAG_SECURE);
}
*dst = k;
return 0;
}
/**
* cdk_pk_from_secret_key:
* @sk: the secret key
* @ret_pk: the new public key
*
* Create a new public key from a secret key.
**/
cdk_error_t
cdk_pk_from_secret_key (cdk_pkt_seckey_t sk, cdk_pubkey_t * ret_pk)
{
if (!sk)
return CDK_Inv_Value;
return _cdk_copy_pubkey (ret_pk, sk->pk);
}
cdk_error_t
cdk_keydb_get_pk( cdk_keydb_hd_t hd, u32 * keyid, cdk_pkt_pubkey_t* r_pk )
{
cdk_kbnode_t knode = NULL, node = NULL;
cdk_pkt_pubkey_t pk = NULL;
int rc = 0;
if( !keyid || !r_pk )
return CDK_Inv_Value;
if( !hd )
return CDK_Error_No_Keyring;
rc = cdk_keydb_search_start( hd, !keyid[0]?
CDK_DBSEARCH_SHORT_KEYID : CDK_DBSEARCH_KEYID,
keyid );
if( !rc )
rc = cdk_keydb_search( hd, &knode );
if( rc )
goto leave;
node = keydb_find_bykeyid( knode, keyid );
if( !node ) {
rc = CDK_Error_No_Key;
goto leave;
}
_cdk_copy_pubkey( &pk, node->pkt->pkt.public_key );
cdk_kbnode_release( knode );
leave:
*r_pk = pk;
return rc;
}
int
_cdk_keydb_get_pk_byusage( cdk_keydb_hd_t hd, const char * name,
cdk_pkt_pubkey_t* ret_pk, int usage )
{
cdk_kbnode_t knode, node = NULL;
cdk_pkt_pubkey_t pk = NULL;
const char * s;
int rc = 0;
if( !ret_pk || !usage )
return CDK_Inv_Value;
if( !hd )
return CDK_Error_No_Keyring;
rc = cdk_keydb_search_start( hd, CDK_DBSEARCH_AUTO, (char *)name );
if( !rc )
rc = cdk_keydb_search( hd, &knode );
if( rc )
goto leave;
node = keydb_find_byusage( knode, usage, 1 );
if( !node ) {
rc = CDK_Unusable_Key;
goto leave;
}
_cdk_copy_pubkey( &pk, node->pkt->pkt.public_key );
for( node = knode; node; node = node->next ) {
if( node->pkt->pkttype == CDK_PKT_USER_ID ) {
s = node->pkt->pkt.user_id->name;
if( pk && !pk->uid && _cdk_memistr( s, strlen( s ), name ) ) {
_cdk_copy_userid( &pk->uid, node->pkt->pkt.user_id );
break;
}
}
}
cdk_kbnode_release( knode );
leave:
*ret_pk = pk;
return rc;
}
static cdk_pkt_seckey_t
sk_create( cdk_keygen_ctx_t hd, int type )
{
cdk_pkt_seckey_t sk;
int nskey, rc = 0;
if( type < 0 || type > 1 )
return NULL;
sk = cdk_calloc( 1, sizeof * sk );
if( !sk )
return NULL;
_cdk_copy_pubkey( &sk->pk, hd->key[type].pk );
sk->version = 4;
sk->pubkey_algo = hd->key[type].algo;
sk->csum = 0;
sk->is_protected = 0;
nskey = cdk_pk_get_nskey( sk->pubkey_algo );
rc = gcry_mpi_to_native( hd, nskey, type, NULL, sk );
if( rc ) {
cdk_free( sk );
sk = NULL;
}
return sk;
}
