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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.Result;
import cz.crcs.ectester.common.test.Test;
import cz.crcs.ectester.common.util.CardUtil;
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 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 CardCofactorSuite extends CardTestSuite {
public CardCofactorSuite(TestWriter writer, ECTesterReader.Config cfg, CardMngr cardManager) {
super(writer, cfg, cardManager, "cofactor", "The cofactor test suite tests whether the card correctly rejects points on the curve",
"but not in the subgroup generated by the generator(so of small order, dividing the cofactor) during ECDH.");
}
@Override
protected void runTests() throws Exception {
Map<String, EC_Key.Public> pubkeys = EC_Store.getInstance().getObjects(EC_Key.Public.class, "cofactor");
Map<EC_Curve, List<EC_Key.Public>> curveList = EC_Store.mapKeyToCurve(pubkeys.values());
for (Map.Entry<EC_Curve, List<EC_Key.Public>> e : curveList.entrySet()) {
EC_Curve curve = e.getKey();
List<EC_Key.Public> keys = e.getValue();
Test allocate = CommandTest.expect(new Command.Allocate(this.card, ECTesterApplet.KEYPAIR_BOTH, curve.getBits(), curve.getField()), ExpectedValue.SUCCESS);
Test set = CommandTest.expect(new Command.Set(this.card, ECTesterApplet.KEYPAIR_BOTH, EC_Consts.CURVE_external, curve.getParams(), curve.flatten()), ExpectedValue.SUCCESS);
Test generate = CommandTest.expect(new Command.Generate(this.card, ECTesterApplet.KEYPAIR_LOCAL), ExpectedValue.SUCCESS);
Test prepare = CompoundTest.all(ExpectedValue.SUCCESS, "Prepare and generate keypair on " + curve.getId() + ".", allocate, set, generate);
List<Test> ecdhTests = new LinkedList<>();
for (EC_Key.Public pub : keys) {
Test setPub = CommandTest.expect(new Command.Set(this.card, ECTesterApplet.KEYPAIR_REMOTE, EC_Consts.CURVE_external, pub.getParams(), pub.flatten()), Result.ExpectedValue.FAILURE);
Test ecdh = CommandTest.expect(new Command.ECDH(this.card, ECTesterApplet.KEYPAIR_REMOTE, ECTesterApplet.KEYPAIR_LOCAL, ECTesterApplet.EXPORT_FALSE, EC_Consts.TRANSFORMATION_NONE, EC_Consts.KeyAgreement_ALG_EC_SVDP_DH), Result.ExpectedValue.FAILURE);
Test objectEcdh = CompoundTest.any(Result.ExpectedValue.SUCCESS, CardUtil.getKATypeString(EC_Consts.KeyAgreement_ALG_EC_SVDP_DH) + " test with degenerate pubkey.", setPub, ecdh);
Command ecdhCommand = new Command.ECDH_direct(this.card, ECTesterApplet.KEYPAIR_LOCAL, ECTesterApplet.EXPORT_FALSE, EC_Consts.TRANSFORMATION_NONE, EC_Consts.KeyAgreement_ALG_EC_SVDP_DH, pub.flatten());
Test rawEcdh = CommandTest.expect(ecdhCommand, ExpectedValue.FAILURE, "Card correctly rejected point on non-generator subgroup.", "Card incorrectly accepted point on non-generator subgroup.");
ecdhTests.add(CompoundTest.all(Result.ExpectedValue.SUCCESS, pub.getId() + " cofactor key test.", objectEcdh, rawEcdh));
}
Test ecdh = CompoundTest.all(ExpectedValue.SUCCESS, "Perform ECDH with public points on non-generator subgroup.", ecdhTests.toArray(new Test[0]));
if (cfg.cleanup) {
Test cleanup = CommandTest.expect(new Command.Cleanup(this.card), ExpectedValue.ANY);
doTest(CompoundTest.greedyAllTry(ExpectedValue.SUCCESS, "Cofactor test of " + curve.getId() + ".", prepare, ecdh, cleanup));
} else {
doTest(CompoundTest.greedyAllTry(ExpectedValue.SUCCESS, "Cofactor test of " + curve.getId() + ".", prepare, ecdh));
}
}
}
}
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