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openSUSE:Leap:15.2:Rings:1-MinimalX
java-11-openjdk
TestCryptoLevel.java
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File TestCryptoLevel.java of Package java-11-openjdk
/* TestCryptoLevel -- Ensure unlimited crypto policy is in use. Copyright (C) 2012 Red Hat, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program 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 Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.lang.reflect.Field; import java.lang.reflect.Method; import java.lang.reflect.InvocationTargetException; import java.security.Permission; import java.security.PermissionCollection; public class TestCryptoLevel { public static void main(String[] args) throws NoSuchFieldException, ClassNotFoundException, IllegalAccessException, InvocationTargetException { Class<?> cls = null; Method def = null, exempt = null; try { cls = Class.forName("javax.crypto.JceSecurity"); } catch (ClassNotFoundException ex) { System.err.println("Running a non-Sun JDK."); System.exit(0); } try { def = cls.getDeclaredMethod("getDefaultPolicy"); exempt = cls.getDeclaredMethod("getExemptPolicy"); } catch (NoSuchMethodException ex) { System.err.println("Running IcedTea with the original crypto patch."); System.exit(0); } def.setAccessible(true); exempt.setAccessible(true); PermissionCollection defPerms = (PermissionCollection) def.invoke(null); PermissionCollection exemptPerms = (PermissionCollection) exempt.invoke(null); Class<?> apCls = Class.forName("javax.crypto.CryptoAllPermission"); Field apField = apCls.getDeclaredField("INSTANCE"); apField.setAccessible(true); Permission allPerms = (Permission) apField.get(null); if (defPerms.implies(allPerms) && (exemptPerms == null || exemptPerms.implies(allPerms))) { System.err.println("Running with the unlimited policy."); System.exit(0); } else { System.err.println("WARNING: Running with a restricted crypto policy."); System.exit(-1); } } }
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