Imported GNU Classpath 0.90

       * scripts/makemake.tcl: Set gnu/java/awt/peer/swing to ignore.
       * gnu/classpath/jdwp/VMFrame.java (SIZE): New constant.
       * java/lang/VMCompiler.java: Use gnu.java.security.hash.MD5.
       * java/lang/Math.java: New override file.
       * java/lang/Character.java: Merged from Classpath.
       (start, end): Now 'int's.
       (canonicalName): New field.
       (CANONICAL_NAME, NO_SPACES_NAME, CONSTANT_NAME): New constants.
       (UnicodeBlock): Added argument.
       (of): New overload.
       (forName): New method.
       Updated unicode blocks.
       (sets): Updated.
       * sources.am: Regenerated.
       * Makefile.in: Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111942 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 197 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/javax/crypto/mac/IMac.java b/libjava/classpath/gnu/javax/crypto/mac/IMac.java
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@@ -0,0 +1,197 @@
+/* IMac.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.javax.crypto.mac;
+
+import java.util.Map;
+import java.security.InvalidKeyException;
+
+/**
+ * <p>The basic visible methods of any MAC (Message Authentication Code)
+ * algorithm.</p>
+ *
+ * <p>A <i>MAC</i> provides a way to check the integrity of information
+ * transmitted over, or stored in, an unreliable medium, based on a secret key.
+ * Typically, <i>MAC</i>s are used between two parties, that share a common
+ * secret key, in order to validate information transmitted between them.</p>
+ *
+ * <p>When a <i>MAC</i> algorithm is based on a cryptographic hash function, it
+ * is then called to a <i>HMAC</i> (Hashed Message Authentication Code) --see
+ * <a href="http://www.ietf.org/rfc/rfc-2104.txt">RFC-2104</a>.</p>
+ *
+ * Another type of <i>MAC</i> algorithms exist: UMAC or <i>Universal Message
+ * Authentication Code</i>, described in
+ * <a href="http://www.ietf.org/internet-drafts/draft-krovetz-umac-01.txt">
+ * draft-krovetz-umac-01.txt</a>.</p>
+ *
+ * <p>With <i>UMAC</i>s, the sender and receiver share a common secret key (the
+ * <i>MAC</i> key) which determines:</p>
+ *
+ * <ul>
+ *    <li>The key for a <i>universal hash function</i>. This hash function is
+ *    <i>non-cryptographic</i>, in the sense that it does not need to have any
+ *    cryptographic <i>hardness</i> property. Rather, it needs to satisfy some
+ *    combinatorial property, which can be proven to hold without relying on
+ *    unproven hardness assumptions.</li>
+ *
+ *    <li>The key for a <i>pseudorandom function</i>. This is where one needs a
+ *    cryptographic hardness assumption. The pseudorandom function may be
+ *    obtained from a <i>block cipher</i> or a <i>cryptographic hash function</i>.
+ *    </li>
+ * </ul>
+ *
+ * <p>References:</p>
+ *
+ * <ol>
+ *    <li><a href="http://www.ietf.org/rfc/rfc-2104.txt">RFC 2104</a>HMAC:
+ *    Keyed-Hashing for Message Authentication.<br>
+ *    H. Krawczyk, M. Bellare, and R. Canetti.</li>
+ *
+ *    <li><a href="http://www.ietf.org/internet-drafts/draft-krovetz-umac-01.txt">
+ *    UMAC</a>: Message Authentication Code using Universal Hashing.<br>
+ *    T. Krovetz, J. Black, S. Halevi, A. Hevia, H. Krawczyk, and P. Rogaway.</li>
+ * </ol>
+ */
+public interface IMac
+{
+
+  // Constants
+  // -------------------------------------------------------------------------
+
+  /**
+   * Property name of the user-supplied key material. The value associated to
+   * this property name is taken to be a byte array.
+   */
+  String MAC_KEY_MATERIAL = "gnu.crypto.mac.key.material";
+
+  /**
+   * <p>Property name of the desired truncated output size in bytes. The value
+   * associated to this property name is taken to be an integer. If no value
+   * is specified in the attributes map at initialisation time, then all bytes
+   * of the underlying hash algorithm's output are emitted.</p>
+   *
+   * <p>This implementation, follows the recommendation of the <i>RFC 2104</i>
+   * authors; specifically:</p>
+   *
+   * <pre>
+   *    We recommend that the output length t be not less than half the
+   *    length of the hash output (to match the birthday attack bound)
+   *    and not less than 80 bits (a suitable lower bound on the number
+   *    of bits that need to be predicted by an attacker).
+   * </pre>
+   */
+  String TRUNCATED_SIZE = "gnu.crypto.mac.truncated.size";
+
+  // Methods
+  // -------------------------------------------------------------------------
+
+  /**
+   * <p>Returns the canonical name of this algorithm.</p>
+   *
+   * @return the canonical name of this algorithm.
+   */
+  String name();
+
+  /**
+   * <p>Returns the output length in bytes of this <i>MAC</i> algorithm.</p>
+   *
+   * @return the output length in bytes of this <i>MAC</i> algorithm.
+   */
+  int macSize();
+
+  /**
+   * <p>Initialises the algorithm with designated attributes. Permissible names
+   * and values are described in the class documentation above.</p>
+   *
+   * @param attributes a set of name-value pairs that describe the desired
+   * future instance behaviour.
+   * @exception InvalidKeyException if the key data is invalid.
+   * @exception IllegalStateException if the instance is already initialised.
+   * @see #MAC_KEY_MATERIAL
+   */
+  void init(Map attributes) throws InvalidKeyException, IllegalStateException;
+
+  /**
+   * <p>Continues a <i>MAC</i> operation using the input byte.</p>
+   *
+   * @param b the input byte to digest.
+   */
+  void update(byte b);
+
+  /**
+   * <p>Continues a <i>MAC</i> operation, by filling the buffer, processing
+   * data in the algorithm's MAC_SIZE-bit block(s), updating the context and
+   * count, and buffering the remaining bytes in buffer for the next
+   * operation.</p>
+   *
+   * @param in the input block.
+   * @param offset start of meaningful bytes in input block.
+   * @param length number of bytes, in input block, to consider.
+   */
+  void update(byte[] in, int offset, int length);
+
+  /**
+   * <p>Completes the <i>MAC</i> by performing final operations such as
+   * padding and resetting the instance.</p>
+   *
+   * @return the array of bytes representing the <i>MAC</i> value.
+   */
+  byte[] digest();
+
+  /**
+   * <p>Resets the algorithm instance for re-initialisation and use with other
+   * characteristics. This method always succeeds.</p>
+   */
+  void reset();
+
+  /**
+   * <p>A basic test. Ensures that the MAC of a pre-determined message is equal
+   * to a known pre-computed value.</p>
+   *
+   * @return <code>true</code> if the implementation passes a basic self-test.
+   * Returns <code>false</code> otherwise.
+   */
+  boolean selfTest();
+
+  /**
+   * <p>Returns a clone copy of this instance.</p>
+   *
+   * @return a clone copy of this instance.
+   */
+  Object clone() throws CloneNotSupportedException;
+}
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