1 files changed, 127 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/mac/BaseMac.java b/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/mac/BaseMac.java
new file mode 100644
index 000000000..16922130f
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+++ b/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/mac/BaseMac.java
@@ -0,0 +1,127 @@
+/* BaseMac.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 gnu.java.security.hash.IMessageDigest;
+
+import java.security.InvalidKeyException;
+import java.util.Map;
+
+/**
+ * A base abstract class to facilitate <i>MAC</i> (Message Authentication Code)
+ * implementations.
+ */
+public abstract class BaseMac
+    implements IMac
+{
+  /** The canonical name prefix of the <i>MAC</i>. */
+  protected String name;
+  /** Reference to the underlying hash algorithm instance. */
+  protected IMessageDigest underlyingHash;
+  /** The length of the truncated output in bytes. */
+  protected int truncatedSize;
+
+  /**
+   * Trivial constructor for use by concrete subclasses.
+   * 
+   * @param name the canonical name of this instance.
+   */
+  protected BaseMac(String name)
+  {
+    super();
+
+    this.name = name;
+  }
+
+  /**
+   * Trivial constructor for use by concrete subclasses.
+   * 
+   * @param name the canonical name of this instance.
+   * @param underlyingHash the underlying message digest algorithm instance.
+   */
+  protected BaseMac(String name, IMessageDigest underlyingHash)
+  {
+    this(name);
+
+    if (underlyingHash != null)
+      truncatedSize = underlyingHash.hashSize();
+    this.underlyingHash = underlyingHash;
+  }
+
+  public String name()
+  {
+    return name;
+  }
+
+  public int macSize()
+  {
+    return truncatedSize;
+  }
+
+  public void update(byte b)
+  {
+    underlyingHash.update(b);
+  }
+
+  public void update(byte[] b, int offset, int len)
+  {
+    underlyingHash.update(b, offset, len);
+  }
+
+  public void reset()
+  {
+    underlyingHash.reset();
+  }
+
+  public Object clone() throws CloneNotSupportedException
+  {
+    BaseMac result = (BaseMac) super.clone();
+    if (this.underlyingHash != null)
+      result.underlyingHash = (IMessageDigest) this.underlyingHash.clone();
+
+    return result;
+  }
+
+  public abstract void init(Map attributes) throws InvalidKeyException,
+      IllegalStateException;
+
+  public abstract byte[] digest();
+
+  public abstract boolean selfTest();
+}