2362N/A * Copyright (c) 1997, 2007, 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 * This class defines the <i>Service Provider Interface</i> (<b>SPI</b>) 0N/A * for the <code>SecretKeyFactory</code> class. 0N/A * 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 secret-key factory for a particular algorithm. 0N/A * <P> A provider should document all the key specifications supported by its 0N/A * secret key factory. 0N/A * For example, the DES secret-key factory supplied by the "SunJCE" provider 0N/A * supports <code>DESKeySpec</code> as a transparent representation of DES 0N/A * keys, and that provider's secret-key factory for Triple DES keys supports 0N/A * <code>DESedeKeySpec</code> as a transparent representation of Triple DES 0N/A * @see javax.crypto.spec.DESKeySpec 0N/A * @see javax.crypto.spec.DESedeKeySpec 0N/A * Generates a <code>SecretKey</code> object from the 0N/A * provided key specification (key material). 0N/A * @param keySpec the specification (key material) of the secret key 0N/A * @return the secret key 0N/A * @exception InvalidKeySpecException if the given key specification 0N/A * is inappropriate for this secret-key factory to produce a secret key. 0N/A * Returns a specification (key material) of the given key 0N/A * object in the requested format. 0N/A * @param key the key 0N/A * @param keySpec the requested format in which the key material shall be 0N/A * @return the underlying key specification (key material) in the 0N/A * @exception InvalidKeySpecException if the requested key specification is 0N/A * inappropriate for the given key (e.g., the algorithms associated with 0N/A * <code>key</code> and <code>keySpec</code> do not match, or 0N/A * <code>key</code> references a key on a cryptographic hardware device 0N/A * whereas <code>keySpec</code> is the specification of a software-based 0N/A * key), or the given key cannot be dealt with 0N/A * (e.g., the given key has an algorithm or format not supported by this 0N/A * secret-key factory). 0N/A * Translates a key object, whose provider may be unknown or 0N/A * potentially untrusted, into a corresponding key object of this 0N/A * secret-key factory. 0N/A * @param key the key whose provider is unknown or untrusted 0N/A * @return the translated key 0N/A * @exception InvalidKeyException if the given key cannot be processed 0N/A * by this secret-key factory.