/*
* Copyright ( c ) 2012 , 2020 , 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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*/
/*
* @ test
* @ bug 8080462 8242332
* @ library / test / lib . .
* @ modules jdk . crypto . cryptoki
* @ run main / othervm / timeout = 250 TestDSA2
* @ summary verify that DSA signature works using SHA - 2 digests .
* @ key randomness
*/
import java.security.*;
import java.security.spec.*;
import java.security.interfaces.*;
public class TestDSA2 extends PKCS11Test {
private static final String[] SIG_ALGOS = {
"SHA224withDSA" ,
"SHA256withDSA" ,
"SHA3-224withDSA" ,
"SHA3-256withDSA" ,
"SHA384withDSA" ,
"SHA512withDSA" ,
"SHA3-384withDSA" ,
"SHA3-512withDSA" ,
};
private static final int KEYSIZE = 2048 ;
public static void main(String[] args) throws Exception {
main(new TestDSA2(), args);
}
@Override
public void main(Provider p) throws Exception {
KeyPair kp;
try {
KeyPairGenerator kpg = KeyPairGenerator.getInstance("DSA" , p);
kpg.initialize(KEYSIZE);
kp = kpg.generateKeyPair();
} catch (Exception ex) {
System.out.println("Skip due to no 2048-bit DSA support: " + ex);
return ;
}
boolean allPass = true ;
for (String sigAlg : SIG_ALGOS) {
System.out.println("Testing " + sigAlg);
try {
Signature sig = Signature.getInstance(sigAlg, p);
test(sig, kp, p);
} catch (NoSuchAlgorithmException nsae) {
System.out.println("=>Skip due to no support" );
} catch (Exception ex) {
System.out.println("Unexpected exception when testing " +
sigAlg);
ex.printStackTrace();
allPass = false ;
}
}
if (allPass) {
System.out.println("Tests Passed" );
} else {
throw new RuntimeException("One or more tests failed" );
}
}
private static void test(Signature sig, KeyPair kp, Provider p)
throws Exception {
byte [] data = "anything will do" .getBytes();
sig.initSign(kp.getPrivate());
sig.update(data);
byte [] signature = sig.sign();
Signature sigV = Signature.getInstance(sig.getAlgorithm() , p);
sigV.initVerify(kp.getPublic());
sigV.update(data);
boolean verifies = sigV.verify(signature);
System.out.println("=> Passed" );
}
}
Messung V0.5 in Prozent C=89 H=95 G=91
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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