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package cz.crcs.ectester.reader.test;
import cz.crcs.ectester.applet.ECTesterApplet;
import cz.crcs.ectester.applet.EC_Consts;
import cz.crcs.ectester.common.ec.EC_Curve;
import cz.crcs.ectester.common.ec.EC_Key;
import cz.crcs.ectester.common.output.TestWriter;
import cz.crcs.ectester.common.test.CompoundTest;
import cz.crcs.ectester.common.test.Test;
import cz.crcs.ectester.data.EC_Store;
import cz.crcs.ectester.reader.CardMngr;
import cz.crcs.ectester.reader.ECTesterReader;
import cz.crcs.ectester.reader.command.Command;
import javacard.security.KeyPair;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import static cz.crcs.ectester.common.test.Result.ExpectedValue;
/**
* @author Jan Jancar johny@neuromancer.sk
*/
public class CardInvalidCurvesSuite extends CardTestSuite {
public CardInvalidCurvesSuite(TestWriter writer, ECTesterReader.Config cfg, CardMngr cardManager) {
super(writer, cfg, cardManager, "invalid", "The invalid curve suite tests whether the card rejects points outside of the curve during ECDH.");
}
@Override
protected void runTests() throws Exception {
/* Set original curves (secg/nist/brainpool). Generate local.
* Try ECDH with invalid public keys of increasing (or decreasing) order.
*/
Map<String, EC_Key.Public> pubkeys = EC_Store.getInstance().getObjects(EC_Key.Public.class, "invalid");
Map<EC_Curve, List<EC_Key.Public>> curves = new HashMap<>();
for (EC_Key.Public key : pubkeys.values()) {
EC_Curve curve = EC_Store.getInstance().getObject(EC_Curve.class, key.getCurve());
if (curve.getBits() != cfg.bits && !cfg.all) {
continue;
}
if (curve.getField() == KeyPair.ALG_EC_FP && !cfg.primeField || curve.getField() == KeyPair.ALG_EC_F2M && !cfg.binaryField) {
continue;
}
List<EC_Key.Public> keys = curves.getOrDefault(curve, new LinkedList<>());
keys.add(key);
curves.putIfAbsent(curve, keys);
}
for (Map.Entry<EC_Curve, List<EC_Key.Public>> e : curves.entrySet()) {
EC_Curve curve = e.getKey();
List<EC_Key.Public> keys = e.getValue();
doTest(CommandTest.expect(new Command.Allocate(this.card, ECTesterApplet.KEYPAIR_BOTH, curve.getBits(), curve.getField()), ExpectedValue.SUCCESS));
doTest(CommandTest.expect(new Command.Set(this.card, ECTesterApplet.KEYPAIR_BOTH, EC_Consts.CURVE_external, curve.getParams(), curve.flatten()), ExpectedValue.SUCCESS));
doTest(CommandTest.expect(new Command.Generate(this.card, ECTesterApplet.KEYPAIR_LOCAL), ExpectedValue.SUCCESS));
List<Test> ecdhTests = new LinkedList<>();
for (EC_Key.Public pub : keys) {
Command ecdhCommand = new Command.ECDH_direct(this.card, ECTesterApplet.KEYPAIR_LOCAL, ECTesterApplet.EXPORT_FALSE, EC_Consts.CORRUPTION_NONE, ECTesterApplet.KeyAgreement_ALG_EC_SVDP_DH, pub.flatten());
ecdhTests.add(CommandTest.expect(ecdhCommand, ExpectedValue.FAILURE, "Card correctly rejected point on invalid curve.", "Card incorrectly accepted point on invalid curve."));
}
doTest(CompoundTest.all(ExpectedValue.SUCCESS, "Invalid curve test of " + curve.getId(), ecdhTests.toArray(new Test[0])));
new Command.Cleanup(this.card).send();
}
}
}
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