jdk-24/jdk/test/sun/security/tools/keytool/ReadJar.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/**
 * @test
 * @bug 6890872 8168882
 * @summary keytool -printcert to recognize signed jar files
 * @library /test/lib
 */

import java.nio.file.Files;
import java.nio.file.Paths;
import jdk.test.lib.SecurityTools;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.util.JarUtils;

public class ReadJar {

    public static void main(String[] args) throws Throwable {
        testWithMD5();
    }

    // make sure that -printcert option works
    // if a weak algorithm was used for signing a jar
    private static void testWithMD5() throws Throwable {
        // create jar files
        JarUtils.createJar("test_md5.jar", "test");
        JarUtils.createJar("test_rsa.jar", "test");

        // create a keystore and generate keys for jar signing
        Files.deleteIfExists(Paths.get("keystore"));

        OutputAnalyzer out = SecurityTools.keytool("-genkeypair "
                + "-keystore keystore -storepass password "
                + "-keypass password -keyalg rsa -alias rsa_alias -dname CN=A");
        System.out.println(out.getOutput());
        out.shouldHaveExitValue(0);

        out = SecurityTools.jarsigner("-keystore keystore -storepass password "
                + "test_rsa.jar rsa_alias");
        System.out.println(out.getOutput());
        out.shouldHaveExitValue(0);

        printCert("test_rsa.jar");

        out = SecurityTools.jarsigner("-keystore keystore -storepass password "
                + "-sigalg MD5withRSA -digestalg MD5 test_md5.jar rsa_alias");
        System.out.println(out.getOutput());
        out.shouldHaveExitValue(0);

        printCert("test_md5.jar");
    }

    private static void printCert(String jar) throws Throwable {
        OutputAnalyzer out = SecurityTools.keytool("-printcert -jarfile " + jar);
        System.out.println(out.getOutput());
        out.shouldHaveExitValue(0);
        out.shouldNotContain("Not a signed jar file");

        out = SecurityTools.keytool("-printcert -rfc -jarfile " + jar);
        System.out.println(out.getOutput());
        out.shouldHaveExitValue(0);
        out.shouldNotContain("Not a signed jar file");
    }
}