| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package libcore.java.security; |
| |
| import java.security.Provider; |
| import java.security.Security; |
| import java.util.HashSet; |
| import java.util.Locale; |
| import java.util.Set; |
| import java.util.SortedSet; |
| import java.util.TreeSet; |
| |
| /** |
| * Prints a list of all algorithms (including aliases) that overlap between Conscrypt and |
| * Bouncy Castle. Intended to be run via vogar. |
| * <p> |
| * {@code vogar libcore/tools/crypto/src/java/libcore/java/security/ProviderOverlap.java} |
| */ |
| public class ProviderOverlap { |
| |
| public static void main(String[] argv) throws Exception { |
| Set<String> conscrypt = getAlgorithms(Security.getProvider("AndroidOpenSSL")); |
| Set<String> bc = getAlgorithms(Security.getProvider("BC")); |
| SortedSet<String> overlap = new TreeSet<>(conscrypt); |
| overlap.retainAll(bc); |
| for (String s : overlap) { |
| System.out.println(s); |
| } |
| } |
| |
| private static Set<String> getAlgorithms(Provider p) { |
| Set<String> result = new HashSet<>(); |
| for (Object keyObj : p.keySet()) { |
| String key = (String) keyObj; |
| if (key.contains(" ")) { |
| // These are implementation properties like "Provider.id name" |
| continue; |
| } |
| if (key.startsWith("Alg.Alias.")) { |
| // This is an alias, strip its prefix |
| key = key.substring("Alg.Alias.".length()); |
| } |
| result.add(key.toUpperCase(Locale.US)); |
| } |
| return result; |
| } |
| } |