2362N/A * Copyright (c) 1997, 1999, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * <p> This class defines the <i>Service Provider Interface</i> (<b>SPI</b>) 0N/A * for the <code>KeyPairGenerator</code> class, which is used to generate 0N/A * pairs of public and private keys. 0N/A * <p> All the abstract methods in this class must be implemented by each 0N/A * cryptographic service provider who wishes to supply the implementation 0N/A * of a key pair generator for a particular algorithm. 0N/A * <p> In case the client does not explicitly initialize the KeyPairGenerator 0N/A * (via a call to an <code>initialize</code> method), each provider must 0N/A * supply (and document) a default initialization. 0N/A * For example, the <i>Sun</i> provider uses a default modulus size (keysize) 0N/A * @author Benjamin Renaud 0N/A * @see KeyPairGenerator 0N/A * @see java.security.spec.AlgorithmParameterSpec 0N/A * Initializes the key pair generator for a certain keysize, using 0N/A * the default parameter set. 0N/A * @param keysize the keysize. This is an 0N/A * algorithm-specific metric, such as modulus length, specified in 0N/A * @param random the source of randomness for this generator. 0N/A * @exception InvalidParameterException if the <code>keysize</code> is not 0N/A * supported by this KeyPairGeneratorSpi object. 0N/A * Initializes the key pair generator using the specified parameter 0N/A * set and user-provided source of randomness. 0N/A * <p>This concrete method has been added to this previously-defined 0N/A * abstract class. (For backwards compatibility, it cannot be abstract.) 0N/A * It may be overridden by a provider to initialize the key pair 0N/A * generator. Such an override 0N/A * is expected to throw an InvalidAlgorithmParameterException if 0N/A * a parameter is inappropriate for this key pair generator. 0N/A * If this method is not overridden, it always throws an 0N/A * UnsupportedOperationException. 0N/A * @param params the parameter set used to generate the keys. 0N/A * @param random the source of randomness for this generator. 0N/A * @exception InvalidAlgorithmParameterException if the given parameters 0N/A * are inappropriate for this key pair generator. 0N/A * Generates a key pair. Unless an initialization method is called 0N/A * using a KeyPairGenerator interface, algorithm-specific defaults 0N/A * will be used. This will generate a new key pair every time it 0N/A * @return the newly generated <tt>KeyPair</tt>