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author | Andrew Haley <aph@redhat.com> | 2016-09-30 16:24:48 +0000 |
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committer | Andrew Haley <aph@gcc.gnu.org> | 2016-09-30 16:24:48 +0000 |
commit | 07b78716af6a9d7c9fd1e94d9baf94a52c873947 (patch) | |
tree | 3f22b3241c513ad168c8353805614ae1249410f4 /libjava/classpath/gnu/javax/crypto/pad/TBC.java | |
parent | eae993948bae8b788c53772bcb9217c063716f93 (diff) | |
download | gcc-07b78716af6a9d7c9fd1e94d9baf94a52c873947.tar.gz |
Makefile.def: Remove libjava.
2016-09-30 Andrew Haley <aph@redhat.com>
* Makefile.def: Remove libjava.
* Makefile.tpl: Likewise.
* Makefile.in: Regenerate.
* configure.ac: Likewise.
* configure: Likewise.
* gcc/java: Remove.
* libjava: Likewise.
From-SVN: r240662
Diffstat (limited to 'libjava/classpath/gnu/javax/crypto/pad/TBC.java')
-rw-r--r-- | libjava/classpath/gnu/javax/crypto/pad/TBC.java | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/libjava/classpath/gnu/javax/crypto/pad/TBC.java b/libjava/classpath/gnu/javax/crypto/pad/TBC.java deleted file mode 100644 index 9fcc415507c..00000000000 --- a/libjava/classpath/gnu/javax/crypto/pad/TBC.java +++ /dev/null @@ -1,119 +0,0 @@ -/* TBC.java -- - Copyright (C) 2001, 2002, 2006, 2010 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.Configuration; -import gnu.java.security.Registry; -import gnu.java.security.util.Util; - -import java.util.logging.Logger; - -/** - * The implementation of the Trailing Bit Complement (TBC) padding algorithm. - * <p> - * In this mode, "...the data string is padded at the trailing end with the - * complement of the trailing bit of the unpadded message: if the trailing bit - * is <tt>1</tt>, then <tt>0</tt> bits are appended, and if the trailing - * bit is <tt>0</tt>, then <tt>1</tt> bits are appended. As few bits are - * added as are necessary to meet the formatting size requirement." - * <p> - * References: - * <ol> - * <li><a - * href="http://csrc.nist.gov/encryption/modes/Recommendation/Modes01.pdf"> - * Recommendation for Block Cipher Modes of Operation Methods and - * Techniques</a>, Morris Dworkin.</li> - * </ol> - */ -public final class TBC - extends BasePad -{ - private static final Logger log = Configuration.DEBUG ? - Logger.getLogger(TBC.class.getName()) : null; - - /** - * Trivial package-private constructor for use by the <i>Factory</i> class. - * - * @see PadFactory - */ - TBC() - { - super(Registry.TBC_PAD); - } - - public void setup() - { - if (blockSize < 1 || blockSize > 256) - throw new IllegalArgumentException(); - } - - public byte[] pad(byte[] in, int offset, int length) - { - int padLength = blockSize; - if (length % blockSize != 0) - padLength = blockSize - length % blockSize; - byte[] result = new byte[padLength]; - int lastBit = in[offset + length - 1] & 0x01; - if (lastBit == 0) - for (int i = 0; i < padLength;) - result[i++] = 0x01; - // else it's already set to zeroes by virtue of initialisation - if (Configuration.DEBUG) - log.fine("padding: 0x" + Util.toString(result)); - return result; - } - - public int unpad(byte[] in, int offset, int length) - throws WrongPaddingException - { - int limit = offset + length - 1; - int lastBit = in[limit] & 0xFF; - int result = 0; - while (lastBit == (in[limit] & 0xFF)) - { - result++; - limit--; - } - if (result > length) - throw new WrongPaddingException(); - if (Configuration.DEBUG) - log.fine("padding length: " + result); - return result; - } -} |