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/*
* Copyright (c) 2018, 2024, 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.io.IOException;
import java.security.*;
import java.security.spec.*;
import java.util.HexFormat;
import java.util.List;
/*
* @test
* @bug 8146293
* @summary Known Answer Tests based on NIST 186-3 at:
* @compile SigRecord.java
* @run main/othervm TestSigGenPSS
*/
public class TestSigGenPSS {
private static final String[] testFiles = {
"SigGenPSS_186-3.txt", "SigGenPSS_186-3_TruncatedSHAs.txt"
};
static final class MyKnownRandomSrc extends SecureRandom {
final byte[] srcBytes;
int numBytes;
MyKnownRandomSrc(String srcString) {
this.srcBytes = HexFormat.of().parseHex(srcString);
this.numBytes = this.srcBytes.length;
}
@Override
public void nextBytes(byte[] bytes) {
if (bytes.length > numBytes) {
throw new RuntimeException("Not enough bytes, need "
+ bytes.length + ", got " + numBytes);
}
System.arraycopy(this.srcBytes, this.srcBytes.length - numBytes, bytes, 0, bytes.length);
numBytes -= bytes.length;
}
}
public static void main(String[] args) throws Exception {
//for (Provider provider : Security.getProviders()) {
Provider p = Security.getProvider(
System.getProperty("test.provider.name", "SunRsaSign"));
Signature sig;
try {
sig = Signature.getInstance("RSASSA-PSS", p);
} catch (NoSuchAlgorithmException e) {
System.out.println("Skip testing RSASSA-PSS" +
" due to no support");
return;
}
boolean success = true;
for (String f : testFiles) {
System.out.println("[INPUT FILE " + f + "]");
try {
success &= runTest(SigRecord.read(f), sig);
} catch (IOException e) {
System.out.println("Unexpected exception: " + e);
e.printStackTrace(System.out);
success = false;
}
}
if (!success) {
throw new RuntimeException("One or more test failed");
}
System.out.println("Test passed");
}
/*
* Run all the tests in the data list with specified algorithm
*/
static boolean runTest(List<SigRecord> records, Signature sig) throws Exception {
boolean success = true;
KeyFactory kf = KeyFactory.getInstance("RSA", sig.getProvider());
for (SigRecord sr : records) {
System.out.println("==Testing Record : " + sr + "==");
PrivateKey privKey = kf.generatePrivate(sr.privKeySpec);
PublicKey pubKey = kf.generatePublic(sr.pubKeySpec);
success &= check(sig, privKey, pubKey, sr.testVectors);
System.out.println("==Done==");
}
return success;
}
/*
* Generate the signature, check against known values and verify.
*/
static boolean check(Signature sig, PrivateKey privKey, PublicKey pubKey,
List<SigRecord.SigVector> vectors) throws Exception {
boolean success = true;
for (SigRecord.SigVector v : vectors) {
System.out.println("\tAgainst " + v.mdAlg);
byte[] msgBytes = HexFormat.of().parseHex(v.msg);
byte[] expSigBytes = HexFormat.of().parseHex(v.sig);
MyKnownRandomSrc saltSrc = new MyKnownRandomSrc(v.salt);
sig.initSign(privKey, saltSrc);
PSSParameterSpec params = new PSSParameterSpec(v.mdAlg, "MGF1",
new MGF1ParameterSpec(v.mdAlg), saltSrc.numBytes, 1);
sig.setParameter(params);
sig.update(msgBytes);
byte[] actualSigBytes = sig.sign();
// Check if the supplied salt bytes are used up
if (saltSrc.numBytes != 0) {
throw new RuntimeException("Error: salt length mismatch! "
+ saltSrc.numBytes + " bytes leftover");
}
success &= MessageDigest.isEqual(actualSigBytes, expSigBytes);
if (!success) {
System.out.println("\tFailed:");
System.out.println("\tSHAALG = " + v.mdAlg);
System.out.println("\tMsg = " + v.msg);
System.out.println("\tSalt = " + v.salt);
System.out.println("\tExpected Sig = " + v.sig);
System.out.println("\tActual Sig = " + HexFormat.of().formatHex(actualSigBytes));
} else {
System.out.println("\t" + v.mdAlg + " Test Vector Passed");
}
}
return success;
}
}
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