jdk/test/jdk/java/security/Signature/TestDisabledAlgorithms.java

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/**
 * @test
 * @bug 8244336
 * @summary Test JCE layer algorithm restriction
 * @library /test/lib
 * @run main/othervm TestDisabledAlgorithms SIGNATURe.sha512withRSA true
 * @run main/othervm TestDisabledAlgorithms signaturE.what false
 * @run main/othervm TestDisabledAlgorithms SiGnAtUrE.SHa512/224withRSA false
 */
import java.util.List;
import java.security.NoSuchAlgorithmException;
import java.security.Signature;
import java.security.Provider;
import java.security.Security;
import jdk.test.lib.Utils;

public class TestDisabledAlgorithms {

    private static final String PROP_NAME = "jdk.crypto.disabledAlgorithms";

    private static void test(List<String> algos, Provider p,
            boolean shouldThrow) throws Exception {

        for (String a : algos) {
            System.out.println("Testing " + (p != null ? p.getName() : "") +
                    ": " + a + ", shouldThrow=" + shouldThrow);
            if (shouldThrow) {
                if (p == null) {
                    Utils.runAndCheckException(() -> Signature.getInstance(a),
                            NoSuchAlgorithmException.class);
                } else {
                    Utils.runAndCheckException(() -> Signature.getInstance(a, p),
                            NoSuchAlgorithmException.class);
                    Utils.runAndCheckException(() -> Signature.getInstance(a,
                            p.getName()), NoSuchAlgorithmException.class);
                }
            } else {
                Signature s;
                if (p == null) {
                    s = Signature.getInstance(a);
                } else {
                    s = Signature.getInstance(a, p);
                    s = Signature.getInstance(a, p.getName());
                }
                System.out.println("Got Signature w/ algo " + s.getAlgorithm());
            }
        }
    }

    public static void main(String[] args) throws Exception {
        String propValue = args[0];
        System.out.println("Setting Security Prop " + PROP_NAME + " = " +
                propValue);
        Security.setProperty(PROP_NAME, propValue);

        boolean shouldThrow = Boolean.valueOf(args[1]);

        List<String> algos = List.of("sha512withRsa", "1.2.840.113549.1.1.13");
        // test w/o provider
        test(algos, null, shouldThrow);

        // test w/ provider
        Provider[] providers = Security.getProviders("Signature.SHA512withRSA");
        for (Provider p : providers) {
            test(algos, p, shouldThrow);
        }
    }
}