diff options
| author | Andrew Haley <aph@redhat.com> | 2016-09-30 16:24:48 +0000 |
|---|---|---|
| committer | Andrew Haley <aph@gcc.gnu.org> | 2016-09-30 16:24:48 +0000 |
| commit | 07b78716af6a9d7c9fd1e94d9baf94a52c873947 (patch) | |
| tree | 3f22b3241c513ad168c8353805614ae1249410f4 /libjava/classpath/gnu/java/security/hash/BaseHash.java | |
| parent | eae993948bae8b788c53772bcb9217c063716f93 (diff) | |
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/java/security/hash/BaseHash.java')
| -rw-r--r-- | libjava/classpath/gnu/java/security/hash/BaseHash.java | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/libjava/classpath/gnu/java/security/hash/BaseHash.java b/libjava/classpath/gnu/java/security/hash/BaseHash.java deleted file mode 100644 index bab930f28e1..00000000000 --- a/libjava/classpath/gnu/java/security/hash/BaseHash.java +++ /dev/null @@ -1,183 +0,0 @@ -/* BaseHash.java -- - Copyright (C) 2001, 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.java.security.hash; - -/** - * A base abstract class to facilitate hash implementations. - */ -public abstract class BaseHash - implements IMessageDigest -{ - /** The canonical name prefix of the hash. */ - protected String name; - - /** The hash (output) size in bytes. */ - protected int hashSize; - - /** The hash (inner) block size in bytes. */ - protected int blockSize; - - /** Number of bytes processed so far. */ - protected long count; - - /** Temporary input buffer. */ - protected byte[] buffer; - - /** - * Trivial constructor for use by concrete subclasses. - * - * @param name the canonical name prefix of this instance. - * @param hashSize the block size of the output in bytes. - * @param blockSize the block size of the internal transform. - */ - protected BaseHash(String name, int hashSize, int blockSize) - { - super(); - - this.name = name; - this.hashSize = hashSize; - this.blockSize = blockSize; - this.buffer = new byte[blockSize]; - - resetContext(); - } - - public String name() - { - return name; - } - - public int hashSize() - { - return hashSize; - } - - public int blockSize() - { - return blockSize; - } - - public void update(byte b) - { - // compute number of bytes still unhashed; ie. present in buffer - int i = (int) (count % blockSize); - count++; - buffer[i] = b; - if (i == (blockSize - 1)) - transform(buffer, 0); - } - - public void update(byte[] b) - { - update(b, 0, b.length); - } - - public void update(byte[] b, int offset, int len) - { - int n = (int) (count % blockSize); - count += len; - int partLen = blockSize - n; - int i = 0; - - if (len >= partLen) - { - System.arraycopy(b, offset, buffer, n, partLen); - transform(buffer, 0); - for (i = partLen; i + blockSize - 1 < len; i += blockSize) - transform(b, offset + i); - - n = 0; - } - - if (i < len) - System.arraycopy(b, offset + i, buffer, n, len - i); - } - - public byte[] digest() - { - byte[] tail = padBuffer(); // pad remaining bytes in buffer - update(tail, 0, tail.length); // last transform of a message - byte[] result = getResult(); // make a result out of context - - reset(); // reset this instance for future re-use - - return result; - } - - public void reset() - { // reset this instance for future re-use - count = 0L; - for (int i = 0; i < blockSize;) - buffer[i++] = 0; - - resetContext(); - } - - public abstract Object clone(); - - public abstract boolean selfTest(); - - /** - * Returns the byte array to use as padding before completing a hash - * operation. - * - * @return the bytes to pad the remaining bytes in the buffer before - * completing a hash operation. - */ - protected abstract byte[] padBuffer(); - - /** - * Constructs the result from the contents of the current context. - * - * @return the output of the completed hash operation. - */ - protected abstract byte[] getResult(); - - /** Resets the instance for future re-use. */ - protected abstract void resetContext(); - - /** - * The block digest transformation per se. - * - * @param in the <i>blockSize</i> long block, as an array of bytes to digest. - * @param offset the index where the data to digest is located within the - * input buffer. - */ - protected abstract void transform(byte[] in, int offset); -} |
