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*
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* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* 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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import java.security.MessageDigest;
import java.security.KeyFactory;
import java.security.NoSuchAlgorithmException;
import java.security.Security;
import java.security.Signature;
import java.security.Provider;
import java.util.Arrays;
import java.util.List;
import javax.crypto.Cipher;
import javax.crypto.Mac;
import javax.crypto.NoSuchPaddingException;
/**
* @ test
* @ bug 8076359 8133151 8145344 8150512 8155847
* @ summary Test the value for new jdk . security . provider . preferred
* security property
* @ run main / othervm PreferredProviderTest
*/
public class PreferredProviderTest {
public void RunTest(String type, String os)
throws NoSuchAlgorithmException, NoSuchPaddingException {
String actualProvider = null ;
String preferredProp
= "AES/GCM/NoPadding:SunJCE, MessageDigest.SHA-256:SUN" ;
System.out.printf("%nExecuting test for the platform '%s'%n" , os);
// Try to set the preferred algorithm and Provider and verify
// the usage of it.
Security.setProperty(
"jdk.security.provider.preferred" , preferredProp);
verifyPreferredProviderProperty(os, type, preferredProp);
verifyDigestProvider(os, type, Arrays.asList(
new DataTuple("SHA-256" , "SUN" )));
Cipher cipher = Cipher.getInstance("AES/GCM/NoPadding" );
actualProvider = cipher.getProvider().getName();
if (!actualProvider.equals("SunJCE" )) {
throw new RuntimeException(String.format("Test Failed:Got wrong "
+ "provider from %s-%s platform, Expected Provider: SunJCE,"
+ " Returned Provider: %s" , os, type, actualProvider));
}
}
private static void verifyPreferredProviderProperty(String os, String arch,
String preferred) {
String preferredProvider
= Security.getProperty("jdk.security.provider.preferred" );
if (!preferredProvider.equals(preferred)) {
System.out.println("Expected: " + preferred + "\nResult: " +
preferredProvider);
throw new RuntimeException(String.format(
"Test Failed: wrong jdk.security.provider.preferred value "
+ "on %s-%s" , os, arch));
}
System.out.println(
"Preferred provider security property verification complete." );
}
private static void verifyDigestProvider(String os, String arch,
List<DataTuple> algoProviders) throws NoSuchAlgorithmException {
for (DataTuple dataTuple : algoProviders) {
System.out.printf(
"Verifying MessageDigest for '%s'%n" , dataTuple.algorithm);
MessageDigest md = MessageDigest.getInstance(dataTuple.algorithm);
matchProvider(md.getProvider(), dataTuple.provider,
dataTuple.algorithm, os, arch);
}
System.out.println(
"Preferred MessageDigest algorithm verification successful." );
}
private static void verifyMacProvider(String os, String arch,
List<DataTuple> algoProviders) throws NoSuchAlgorithmException {
for (DataTuple dataTuple : algoProviders) {
System.out.printf(
"Verifying Mac for '%s'%n" , dataTuple.algorithm);
Mac mac = Mac.getInstance(dataTuple.algorithm);
matchProvider(mac.getProvider(), dataTuple.provider,
dataTuple.algorithm, os, arch);
}
System.out.println(
"Preferred Mac algorithm verification successful." );
}
private static void verifyKeyFactoryProvider(String os, String arch,
List<DataTuple> algoProviders) throws NoSuchAlgorithmException {
for (DataTuple dataTuple : algoProviders) {
System.out.printf(
"Verifying KeyFactory for '%s'%n" , dataTuple.algorithm);
KeyFactory kf = KeyFactory.getInstance(dataTuple.algorithm);
matchProvider(kf.getProvider(), dataTuple.provider,
dataTuple.algorithm, os, arch);
}
System.out.println(
"Preferred KeyFactory algorithm verification successful." );
}
private static void verifySignatureProvider(String os, String arch,
List<DataTuple> algoProviders) throws NoSuchAlgorithmException {
for (DataTuple dataTuple : algoProviders) {
System.out.printf(
"Verifying Signature for '%s'%n" , dataTuple.algorithm);
Signature si = Signature.getInstance(dataTuple.algorithm);
matchProvider(si.getProvider(), dataTuple.provider,
dataTuple.algorithm, os, arch);
}
System.out.println(
"Preferred Signature algorithm verification successful." );
}
private static void matchProvider(Provider provider, String expected,
String algo, String os, String arch) {
if (!provider.getName().equals(expected)) {
throw new RuntimeException(String.format(
"Test Failed:Got wrong provider from %s-%s platform, "
+ "for algorithm %s. Expected Provider: %s,"
+ " Returned Provider: %s" , os, arch, algo,
expected, provider.getName()));
}
}
private static class DataTuple {
private final String provider;
private final String algorithm;
private DataTuple(String algorithm, String provider) {
this .algorithm = algorithm;
this .provider = provider;
}
}
public static void main(String[] args)
throws NoSuchAlgorithmException, NoSuchPaddingException {
String os = System.getProperty("os.name" ).toLowerCase();
String arch = System.getProperty("os.arch" ).toLowerCase();
PreferredProviderTest pp = new PreferredProviderTest();
pp.RunTest(arch, os);
}
}
Messung V0.5 in Prozent C=91 H=92 G=91
¤ Dauer der Verarbeitung: 0.18 Sekunden
(vorverarbeitet am 2026-06-10)
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