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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
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*
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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 ) .
*
* 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 .
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/**
* @ test
* @ bug 4853305 4963723 8146293
* @ summary Test signing / verifying using all the signature algorithms
* @ library / test / lib
* @ build jdk . test . lib . SigTestUtil
* @ run main TestSignatures
* @ author Andreas Sterbenz
* @ key randomness
*/
import java.io.*;
import java.util.*;
import java.security.*;
import java.security.interfaces.*;
import jdk.test.lib.SigTestUtil;
import static jdk.test.lib.SigTestUtil.SignatureType;
public class TestSignatures {
private final static String BASE = System.getProperty("test.src" , "." );
private static final char [] password = "test12" .toCharArray();
private static Provider provider;
private static byte [] data;
static KeyStore getKeyStore() throws Exception {
InputStream in = new FileInputStream(new File(BASE, "rsakeys.ks" ));
KeyStore ks = KeyStore.getInstance("JKS" );
ks.load(in, password);
in.close();
return ks;
}
private static void testSignature(String mdAlg, PrivateKey privateKey,
PublicKey publicKey) throws NoSuchAlgorithmException,
InvalidKeyException, SignatureException {
System.out.println("Testing against " + mdAlg + "..." );
String sigAlg = SigTestUtil.generateSigAlg(SignatureType.RSA, mdAlg);
Signature s = Signature.getInstance(sigAlg, provider);
s.initSign(privateKey);
s.update(data);
byte [] sig = s.sign();
s.initVerify(publicKey);
s.update(data);
boolean result;
result = s.verify(sig);
if (result == false ) {
throw new RuntimeException("Verification 1 failed" );
}
s.update(data);
result = s.verify(sig);
if (result == false ) {
throw new RuntimeException("Verification 2 failed" );
}
result = s.verify(sig);
if (result == true ) {
throw new RuntimeException("Verification 3 succeeded" );
}
}
private static void test(PrivateKey privateKey, PublicKey publicKey)
throws Exception {
int testSize = ((RSAPublicKey)publicKey).getModulus().bitLength();
System.out.println("modulus size = " + testSize);
// work around a corner case where the key size is one bit short
if ((testSize & 0 x07) != 0 ) {
testSize += (8 - (testSize & 0 x07));
System.out.println("adjusted modulus size = " + testSize);
}
Iterable<String> sign_alg_pkcs15 =
SigTestUtil.getDigestAlgorithms(SignatureType.RSA, testSize);
sign_alg_pkcs15.forEach(testAlg -> {
try {
testSignature(testAlg, privateKey, publicKey);
} catch (NoSuchAlgorithmException | InvalidKeyException |
SignatureException ex) {
throw new RuntimeException(ex);
}
}
);
}
public static void main(String[] args) throws Exception {
long start = System.currentTimeMillis();
provider = Security.getProvider("SunRsaSign" );
data = new byte [2048 ];
new Random().nextBytes(data);
KeyStore ks = getKeyStore();
KeyFactory kf = KeyFactory.getInstance("RSA" , provider);
for (Enumeration e = ks.aliases(); e.hasMoreElements(); ) {
String alias = (String)e.nextElement();
if (ks.isKeyEntry(alias)) {
System.out.println("* Key " + alias + "..." );
PrivateKey privateKey = (PrivateKey)ks.getKey(alias, password);
PublicKey publicKey = ks.getCertificate(alias).getPublicKey();
privateKey = (PrivateKey)kf.translateKey(privateKey);
publicKey = (PublicKey)kf.translateKey(publicKey);
test(privateKey, publicKey);
}
}
long stop = System.currentTimeMillis();
System.out.println("All tests passed (" + (stop - start) + " ms)." );
}
}
Messung V0.5 in Prozent C=93 H=94 G=93
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
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