From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../gnu/javax/crypto/jce/mac/MacAdapter.java | 136 +++++++++++++++++++++ 1 file changed, 136 insertions(+) create mode 100644 libjava/classpath/gnu/javax/crypto/jce/mac/MacAdapter.java (limited to 'libjava/classpath/gnu/javax/crypto/jce/mac/MacAdapter.java') diff --git a/libjava/classpath/gnu/javax/crypto/jce/mac/MacAdapter.java b/libjava/classpath/gnu/javax/crypto/jce/mac/MacAdapter.java new file mode 100644 index 000000000..cb3d934fa --- /dev/null +++ b/libjava/classpath/gnu/javax/crypto/jce/mac/MacAdapter.java @@ -0,0 +1,136 @@ +/* MacAdapter.java -- + Copyright (C) 2002, 2006 Free Software Foundation, Inc. + +This file is a part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at +your option) any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 +USA + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.javax.crypto.jce.mac; + +import gnu.javax.crypto.mac.IMac; +import gnu.javax.crypto.mac.MacFactory; + +import java.security.InvalidAlgorithmParameterException; +import java.security.InvalidKeyException; +import java.security.Key; +import java.security.spec.AlgorithmParameterSpec; +import java.util.HashMap; +import java.util.Map; +import javax.crypto.MacSpi; + +/** + * The implementation of a generic {@link javax.crypto.Mac} adapter class to + * wrap GNU MAC instances. + *

+ * This class defines the Service Provider Interface (SPI) for + * the {@link javax.crypto.Mac} class, which provides the functionality of a + * message authentication code algorithm, such as the Hashed Message + * Authentication Code (HMAC) algorithms. + */ +class MacAdapter + extends MacSpi + implements Cloneable +{ + /** Our MAC instance. */ + protected IMac mac; + /** Our MAC attributes. */ + protected Map attributes; + + /** + * Creates a new Mac instance for the given name. + * + * @param name The name of the mac to create. + */ + protected MacAdapter(String name) + { + mac = MacFactory.getInstance(name); + attributes = new HashMap(); + } + + /** + * Private constructor for cloning purposes. + * + * @param mac a clone of the internal {@link IMac} instance. + * @param attributes a clone of the current {@link Map} of attributes. + */ + private MacAdapter(IMac mac, Map attributes) + { + super(); + + this.mac = mac; + this.attributes = attributes; + } + + public Object clone() throws CloneNotSupportedException + { + return new MacAdapter((IMac) mac.clone(), new HashMap(attributes)); + } + + protected byte[] engineDoFinal() + { + byte[] result = mac.digest(); + engineReset(); + return result; + } + + protected int engineGetMacLength() + { + return mac.macSize(); + } + + protected void engineInit(Key key, AlgorithmParameterSpec params) + throws InvalidKeyException, InvalidAlgorithmParameterException + { + if (! key.getFormat().equalsIgnoreCase("RAW")) + throw new InvalidKeyException("unknown key format " + key.getFormat()); + attributes.put(IMac.MAC_KEY_MATERIAL, key.getEncoded()); + mac.reset(); + mac.init(attributes); + } + + protected void engineReset() + { + mac.reset(); + } + + protected void engineUpdate(byte b) + { + mac.update(b); + } + + protected void engineUpdate(byte[] in, int off, int len) + { + mac.update(in, off, len); + } +} -- cgit v1.2.3