| /* |
| * Copyright (c) 2016, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| |
| package sun.security.provider; |
| |
| import java.io.IOException; |
| import java.io.Serializable; |
| import java.security.DrbgParameters; |
| import java.security.SecureRandomParameters; |
| |
| /** |
| * Exported and non-exported parameters that can be used by DRBGs. |
| */ |
| public class MoreDrbgParameters implements SecureRandomParameters, Serializable { |
| |
| private static final long serialVersionUID = 9L; |
| |
| final transient EntropySource es; |
| |
| final String mech; |
| final String algorithm; |
| final boolean usedf; |
| final int strength; |
| final DrbgParameters.Capability capability; |
| |
| // The following 2 fields will be reassigned in readObject and |
| // thus cannot be final |
| byte[] nonce; |
| byte[] personalizationString; |
| |
| /** |
| * Creates a new {@code MoreDrbgParameters} object. |
| * |
| * @param es the {@link EntropySource} to use. If set to {@code null}, |
| * a default entropy source will be used. |
| * @param mech mech name. If set to {@code null}, the one in |
| * securerandom.drbg.config is used. This argument is ignored |
| * when passing to HashDrbg/HmacDrbg/CtrDrbg. |
| * @param algorithm the requested algorithm to use. If set to {@code null}, |
| * the algorithm will be decided by strength. |
| * @param nonce the nonce to use. If set to {@code null}, |
| * a nonce will be assigned. |
| * @param usedf whether a derivation function should be used |
| * @param config a {@link DrbgParameters.Instantiation} object |
| */ |
| public MoreDrbgParameters(EntropySource es, String mech, |
| String algorithm, byte[] nonce, boolean usedf, |
| DrbgParameters.Instantiation config) { |
| this.mech = mech; |
| this.algorithm = algorithm; |
| this.es = es; |
| this.nonce = (nonce == null) ? null : nonce.clone(); |
| this.usedf = usedf; |
| |
| this.strength = config.getStrength(); |
| this.capability = config.getCapability(); |
| this.personalizationString = config.getPersonalizationString(); |
| } |
| |
| @Override |
| public String toString() { |
| return mech + "," + algorithm + "," + usedf + "," + strength |
| + "," + capability + "," + personalizationString; |
| } |
| |
| private void readObject(java.io.ObjectInputStream s) |
| throws IOException, ClassNotFoundException { |
| s.defaultReadObject(); |
| if (nonce != null) { |
| nonce = nonce.clone(); |
| } |
| if (personalizationString != null) { |
| personalizationString = personalizationString.clone(); |
| } |
| if (capability == null) { |
| throw new IllegalArgumentException("Input data is corrupted"); |
| } |
| } |
| } |