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diff --git a/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/cipher/IBlockCipherSpi.java b/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/cipher/IBlockCipherSpi.java
new file mode 100644
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+++ b/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/cipher/IBlockCipherSpi.java
@@ -0,0 +1,124 @@
+/* IBlockCipherSpi.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.cipher;
+
+import java.security.InvalidKeyException;
+import java.util.Iterator;
+
+/**
+ * Package-private interface exposing mandatory methods to be implemented by
+ * concrete {@link BaseCipher} sub-classes.
+ */
+interface IBlockCipherSpi
+    extends Cloneable
+{
+  /**
+   * Returns an {@link Iterator} over the supported block sizes. Each element
+   * returned by this object is a {@link java.lang.Integer}.
+   * 
+   * @return an <code>Iterator</code> over the supported block sizes.
+   */
+  Iterator blockSizes();
+
+  /**
+   * Returns an {@link Iterator} over the supported key sizes. Each element
+   * returned by this object is a {@link java.lang.Integer}.
+   * 
+   * @return an <code>Iterator</code> over the supported key sizes.
+   */
+  Iterator keySizes();
+
+  /**
+   * Expands a user-supplied key material into a session key for a designated
+   * <i>block size</i>.
+   * 
+   * @param k the user-supplied key material.
+   * @param bs the desired block size in bytes.
+   * @return an Object encapsulating the session key.
+   * @exception IllegalArgumentException if the block size is invalid.
+   * @exception InvalidKeyException if the key data is invalid.
+   */
+  Object makeKey(byte[] k, int bs) throws InvalidKeyException;
+
+  /**
+   * Encrypts exactly one block of plaintext.
+   * 
+   * @param in the plaintext.
+   * @param inOffset index of <code>in</code> from which to start considering
+   *          data.
+   * @param out the ciphertext.
+   * @param outOffset index of <code>out</code> from which to store the
+   *          result.
+   * @param k the session key to use.
+   * @param bs the block size to use.
+   * @exception IllegalArgumentException if the block size is invalid.
+   * @exception ArrayIndexOutOfBoundsException if there is not enough room in
+   *              either the plaintext or ciphertext buffers.
+   */
+  void encrypt(byte[] in, int inOffset, byte[] out, int outOffset, Object k,
+               int bs);
+
+  /**
+   * Decrypts exactly one block of ciphertext.
+   * 
+   * @param in the ciphertext.
+   * @param inOffset index of <code>in</code> from which to start considering
+   *          data.
+   * @param out the plaintext.
+   * @param outOffset index of <code>out</code> from which to store the
+   *          result.
+   * @param k the session key to use.
+   * @param bs the block size to use.
+   * @exception IllegalArgumentException if the block size is invalid.
+   * @exception ArrayIndexOutOfBoundsException if there is not enough room in
+   *              either the plaintext or ciphertext buffers.
+   */
+  void decrypt(byte[] in, int inOffset, byte[] out, int outOffset, Object k,
+               int bs);
+
+  /**
+   * A <i>correctness</i> test that consists of basic symmetric encryption /
+   * decryption test(s) for all supported block and key sizes, as well as one
+   * (1) variable key Known Answer Test (KAT).
+   * 
+   * @return <code>true</code> if the implementation passes simple
+   *         <i>correctness</i> tests. Returns <code>false</code> otherwise.
+   */
+  boolean selfTest();
+}