Signature SignerReal::sign( PrivateKey privkey, Digest hash, Monitor& monitor )
{
if (!check_interface(monitor)) return Signature();
Parameters params = privkey.getAlgParams(acSign, Monitor());
if (params) setAlgParams(params,monitor);
Padder curpad = padder;
if (privkey.getPadder(Monitor()))
{
curpad = privkey.getPadder(monitor);
} else {
//TODO: find default padder
}
Error error;
if (random)
{
IRef<eprovider::ProviderInterface> randomer = creator.getCreatureCurrentInterface(random);
if (randomer) iface->setRandom(session, randomer.cast<eprovider::RandomGenerator>().get(), error);
}
eprovider::TheKey thekey = creator.getCreatureCurrentTheKey(privkey);
Size hashsize = iface->getMaxHashSize(thekey, error);
if (curpad.ok() && hashsize.bits()) hash = curpad.pad(hash, hashsize, monitor); if (!monitor) return Signature();
Data hashblock = hash.asData();
eprovider::Block binsign;
RECOVER_CALL( (binsign = iface->signHash(session, hashblock.get(), hashblock.size(), thekey, error)) );
Snapshot snapshot = creator.createSnapshot(binsign.get(), binsign.size(), binsign.encid(), iface->getKeyId(kcSignature));
return snapshot.reviveSignature(monitor);
}
Signature SignerReal::sign( PrivateKey privkey, const void* data, Size size, Monitor& monitor )
{
if (!check_interface(monitor)) return Signature();
if (!hasher)
{
// TODO: find default hasher for this sign algid
}
if (hasher)
{
Digest digest = hasher.hash(data,size,monitor);
return sign(privkey,data,size,monitor);
} else {
eprovider::TheKey thekey = creator.getCreatureCurrentTheKey(privkey);
eprovider::Block binsign;
RECOVER_CALL( (iface->signStart(session, thekey, error)) );
RECOVER_CALL( (iface->signProcess(session, data, size, error)) );
RECOVER_CALL( (binsign = iface->signStop(session, error)) );
Snapshot snapshot = creator.createSnapshot(binsign.get(), binsign.size(), binsign.encid(), iface->getKeyId(kcSignature));
return snapshot.reviveSignature(monitor);
}
}
