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103 lines
3.9 KiB
Java
103 lines
3.9 KiB
Java
/*
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* Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.security.provider;
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import java.io.IOException;
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import java.io.Serializable;
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import java.security.DrbgParameters;
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import java.security.SecureRandomParameters;
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/**
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* Exported and non-exported parameters that can be used by DRBGs.
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*/
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public class MoreDrbgParameters implements SecureRandomParameters, Serializable {
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@java.io.Serial
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private static final long serialVersionUID = 9L;
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final transient EntropySource es;
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final String mech;
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final String algorithm;
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final boolean usedf;
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final int strength;
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final DrbgParameters.Capability capability;
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// The following 2 fields will be reassigned in readObject and
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// thus cannot be final
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byte[] nonce;
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byte[] personalizationString;
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/**
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* Creates a new {@code MoreDrbgParameters} object.
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*
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* @param es the {@link EntropySource} to use. If set to {@code null},
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* a default entropy source will be used.
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* @param mech mech name. If set to {@code null}, the one in
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* securerandom.drbg.config is used. This argument is ignored
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* when passing to HashDrbg/HmacDrbg/CtrDrbg.
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* @param algorithm the requested algorithm to use. If set to {@code null},
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* the algorithm will be decided by strength.
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* @param nonce the nonce to use. If set to {@code null},
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* a nonce will be assigned.
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* @param usedf whether a derivation function should be used
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* @param config a {@link DrbgParameters.Instantiation} object
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*/
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public MoreDrbgParameters(EntropySource es, String mech,
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String algorithm, byte[] nonce, boolean usedf,
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DrbgParameters.Instantiation config) {
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this.mech = mech;
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this.algorithm = algorithm;
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this.es = es;
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this.nonce = (nonce == null) ? null : nonce.clone();
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this.usedf = usedf;
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this.strength = config.getStrength();
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this.capability = config.getCapability();
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this.personalizationString = config.getPersonalizationString();
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}
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@Override
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public String toString() {
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return mech + "," + algorithm + "," + usedf + "," + strength
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+ "," + capability + "," + personalizationString;
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}
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@java.io.Serial
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private void readObject(java.io.ObjectInputStream s)
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throws IOException, ClassNotFoundException {
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s.defaultReadObject();
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if (nonce != null) {
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nonce = nonce.clone();
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}
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if (personalizationString != null) {
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personalizationString = personalizationString.clone();
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}
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if (capability == null) {
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throw new IllegalArgumentException("Input data is corrupted");
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}
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}
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}
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