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/*
* Copyright (c) 2019, 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 static java.lang.System.out;
import java.security.Provider;
import java.security.Security;
import java.security.SecureRandom;
import java.security.Provider.Service;
import java.util.Arrays;
import sun.security.provider.SunEntries;
/**
* @test
* @bug 8228613 8246613 8248505
* @summary Ensure that the default SecureRandom algo used is based
* on the registration ordering, and falls to next provider
* if none are found
* @modules java.base/sun.security.provider
*/
public class DefaultAlgo {
private static final String SR_IMPLCLASS =
"sun.security.provider.SecureRandom";
public static void main(String[] args) throws Exception {
String[] algos = { "A", "B", "C" };
test3rdParty(algos);
// reverse the order and re-check
String[] algosReversed = { "C", "B", "A" };
test3rdParty(algosReversed);
}
private static void test3rdParty(String[] algos) {
Provider[] provs = {
new SampleLegacyProvider(algos),
new SampleServiceProvider(algos),
new CustomProvider(algos)
};
for (Provider p : provs) {
checkDefault(p, algos);
}
}
// validate the specified SecureRandom obj to be from the specified
// provider and matches the specified algorithm
private static void validate(SecureRandom sr, String pName, String algo) {
if (!sr.getProvider().getName().equals(pName)) {
throw new RuntimeException("Failed provider check, exp: " +
pName + ", got " + sr.getProvider().getName());
}
if (!sr.getAlgorithm().equals(algo)) {
throw new RuntimeException("Failed algo check, exp: " +
algo + ", got " + sr.getAlgorithm());
}
}
private static void checkDefault(Provider p, String ... algos) {
String pName = p.getName();
out.println(pName + " with " + Arrays.toString(algos));
int pos = Security.insertProviderAt(p, 1);
boolean isLegacy = pName.equals("SampleLegacy");
try {
if (isLegacy) {
for (String s : algos) {
validate(new SecureRandom(), pName, s);
p.remove("SecureRandom." + s);
out.println("removed " + s);
}
validate(new SecureRandom(), System.getProperty("test.provider.name", "SUN"),
System.getProperty("test.default.secure.random.algorithm.name",
SunEntries.DEF_SECURE_RANDOM_ALGO));
} else {
validate(new SecureRandom(), pName, algos[0]);
}
out.println("=> Test Passed");
} finally {
if (pos != -1) {
Security.removeProvider(pName);
}
if (isLegacy) {
// add back the removed algos
for (String s : algos) {
p.put("SecureRandom." + s, SR_IMPLCLASS);
}
}
}
}
private static class SampleLegacyProvider extends Provider {
SampleLegacyProvider(String[] listOfSupportedRNGs) {
super("SampleLegacy", "1.0", "test provider using legacy put");
for (String s : listOfSupportedRNGs) {
put("SecureRandom." + s, SR_IMPLCLASS);
}
}
}
private static class SampleServiceProvider extends Provider {
SampleServiceProvider(String[] listOfSupportedRNGs) {
super("SampleService", "1.0", "test provider using putService");
for (String s : listOfSupportedRNGs) {
putService(new Provider.Service(this, "SecureRandom", s,
SR_IMPLCLASS, null, null));
}
}
}
// custom provider which overrides putService(...)/getService() and uses
// its own Service impl
private static class CustomProvider extends Provider {
private static class CustomService extends Provider.Service {
CustomService(Provider p, String type, String algo, String cName) {
super(p, type, algo, cName, null, null);
}
}
CustomProvider(String[] listOfSupportedRNGs) {
super("Custom", "1.0", "test provider overrides putService with " +
" custom service with legacy registration");
for (String s : listOfSupportedRNGs) {
putService(new CustomService(this, "SecureRandom", s ,
SR_IMPLCLASS));
}
}
@Override
protected void putService(Provider.Service s) {
// convert to legacy puts
put(s.getType() + "." + s.getAlgorithm(), s.getClassName());
put(s.getType() + ":" + s.getAlgorithm(), s);
}
@Override
public Provider.Service getService(String type, String algo) {
return (Provider.Service) get(type + ":" + algo);
}
}
}
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