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. --- .../classpath/gnu/javax/crypto/pad/PadFactory.java | 120 +++++++++++++++++++++ 1 file changed, 120 insertions(+) create mode 100644 libjava/classpath/gnu/javax/crypto/pad/PadFactory.java (limited to 'libjava/classpath/gnu/javax/crypto/pad/PadFactory.java') diff --git a/libjava/classpath/gnu/javax/crypto/pad/PadFactory.java b/libjava/classpath/gnu/javax/crypto/pad/PadFactory.java new file mode 100644 index 000000000..2df2029fa --- /dev/null +++ b/libjava/classpath/gnu/javax/crypto/pad/PadFactory.java @@ -0,0 +1,120 @@ +/* PadFactory.java -- + Copyright (C) 2001, 2002, 2003, 2004, 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.pad; + +import gnu.java.security.Registry; + +import java.util.Collections; +import java.util.HashSet; +import java.util.Set; + +/** + * A Factory to instantiate padding schemes. + */ +public class PadFactory + implements Registry +{ + /** Collection of padding algorithm names --cached for speed. */ + private static Set names; + + /** Trivial constructor to enforce Singleton pattern. */ + private PadFactory() + { + super(); + } + + /** + * Returns an instance of a padding algorithm given its name. + * + * @param pad the case-insensitive name of the padding algorithm. + * @return an instance of the padding algorithm, operating with a given block + * size, or null if none found. + * @throws InternalError if the implementation does not pass its self-test. + */ + public static final IPad getInstance(String pad) + { + if (pad == null) + return null; + + pad = pad.trim().toLowerCase(); + if (pad.endsWith("padding")) + pad = pad.substring(0, pad.length() - "padding".length()); + IPad result = null; + if (pad.equals(PKCS7_PAD) || pad.equals(PKCS5_PAD)) + result = new PKCS7(); + else if (pad.equals(TBC_PAD)) + result = new TBC(); + else if (pad.equals(EME_PKCS1_V1_5_PAD)) + result = new PKCS1_V1_5(); + else if (pad.equals(SSL3_PAD)) + result = new SSL3(); + else if (pad.equals(TLS1_PAD)) + result = new TLS1(); + else if (pad.equals(ISO10126_PAD)) + result = new ISO10126(); + + if (result != null && ! result.selfTest()) + throw new InternalError(result.name()); + + return result; + } + + /** + * Returns a {@link Set} of names of padding algorithms supported by this + * Factory. + * + * @return a {@link Set} of padding algorithm names (Strings). + */ + public static final Set getNames() + { + if (names == null) + { + HashSet hs = new HashSet(); + hs.add(PKCS5_PAD); + hs.add(PKCS7_PAD); + hs.add(TBC_PAD); + hs.add(EME_PKCS1_V1_5_PAD); + hs.add(SSL3_PAD); + hs.add(TLS1_PAD); + hs.add(ISO10126_PAD); + names = Collections.unmodifiableSet(hs); + } + return names; + } +} -- cgit v1.2.3