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* Copyright ( c ) 2021 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* 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 ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
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*/
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.security.Key;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.Provider;
import java.security.Security;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
import javax.crypto.KeyGenerator;
/*
* @ test
* @ bug 8185127
* @ summary Test key comparison for the Keys generated through KeyGenerator
* @ run main CompareKeys
*/
public class CompareKeys {
public static void main(String[] args) throws Exception {
for (KeygenAlgo alg : getSupportedAlgo("KeyGenerator" )) {
System.out.printf("Verifying provider %s and algorithm %s%n" ,
alg.provider().getName(), alg.algoName());
SecretKey k = genSecretKey(alg.algoName(), alg.provider());
checkKeyEquality(k, copy(alg.algoName(), k));
}
for (KeygenAlgo alg : getSupportedAlgo("KeyPairGenerator" )) {
System.out.printf("Verifying provider %s and algorithm %s%n" ,
alg.provider().getName(), alg.algoName());
KeyPair kp = genKeyPair(alg.algoName(), alg.provider());
checkKeyPairEquality(kp, copy(alg.algoName(), kp));
}
System.out.println("Done!" );
}
@SuppressWarnings("preview" )
private record KeygenAlgo(String algoName, Provider provider) {
}
private static void checkKeyPairEquality(KeyPair origkp, KeyPair copykp)
throws Exception {
checkKeyEquality(origkp.getPrivate(), copykp.getPrivate());
checkKeyEquality(origkp.getPublic(), copykp.getPublic());
}
/**
* Compare original Key with another copy .
*/
private static void checkKeyEquality(Key origKey, Key copyKey) {
if ((origKey.equals(copyKey)
&& origKey.hashCode() == copyKey.hashCode()
&& Arrays.equals(origKey.getEncoded(), copyKey.getEncoded())
&& origKey.getFormat().equals(copyKey.getFormat()))) {
System.out.printf("%s equality check Passed%n" ,
origKey.getClass().getName());
} else {
System.out.println("Result- equals: "
+ origKey.equals(copyKey));
System.out.println("Result- hashCode: "
+ (origKey.hashCode() == copyKey.hashCode()));
System.out.println("Result- encoded check: " + Arrays.equals(
origKey.getEncoded(), copyKey.getEncoded()));
System.out.println("Result- format check: "
+ origKey.getFormat().equals(copyKey.getFormat()));
throw new RuntimeException("Key inequality found" );
}
}
private static Key copy(String algo, Key key) throws Exception {
return new SecretKeySpec(key.getEncoded(), algo);
}
private static KeyPair copy(String algo, KeyPair kp) throws Exception {
KeyFactory kf = KeyFactory.getInstance(algo);
return new KeyPair(
kf.generatePublic(
new X509EncodedKeySpec(kp.getPublic().getEncoded())),
kf.generatePrivate(
new PKCS8EncodedKeySpec(kp.getPrivate().getEncoded())));
}
private static List<KeygenAlgo> getSupportedAlgo(String type)
throws Exception {
List<KeygenAlgo> kgs = new LinkedList<>();
for (Provider p : Security.getProviders()) {
for (Provider.Service s : p.getServices()) {
// Ignore the algorithms from the list which require
// pre-initialization to make the Test generic across algorithms.
// SunMSCAPI provider is ignored too because of incompatibilty
// for serialization and with PKCS8EncodedKeySpec for certain
// algorithms like RSA.
if (s.getType().contains(type)
&& !((s.getAlgorithm().startsWith("SunTls" ))
|| s.getProvider().getName().equals("SunMSCAPI" ))) {
kgs.add(new KeygenAlgo(s.getAlgorithm(), s.getProvider()));
}
}
}
return kgs;
}
public static SecretKey genSecretKey(String algoName, Provider provider)
throws Exception {
return KeyGenerator.getInstance(algoName, provider).generateKey();
}
public static KeyPair genKeyPair(String algoName, Provider provider)
throws Exception {
return KeyPairGenerator.getInstance(algoName, provider)
.generateKeyPair();
}
}
Messung V0.5 in Prozent C=97 H=81 G=89
¤ Dauer der Verarbeitung: 0.4 Sekunden
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