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verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
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if you have obtained the source via the command 'git clone',
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1 files changed, 195 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/javax/crypto/cipher/IBlockCipher.java b/libjava/classpath/gnu/javax/crypto/cipher/IBlockCipher.java
new file mode 100644
index 000000000..86f8b34e0
--- /dev/null
+++ b/libjava/classpath/gnu/javax/crypto/cipher/IBlockCipher.java
@@ -0,0 +1,195 @@
+/* IBlockCipher.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;
+import java.util.Map;
+
+/**
+ * The basic visible methods of any symmetric key block cipher.
+ * <p>
+ * A symmetric key block cipher is a function that maps n-bit plaintext blocks
+ * to n-bit ciphertext blocks; n being the cipher's <i>block size</i>. This
+ * encryption function is parameterised by a k-bit key, and is invertible. Its
+ * inverse is the decryption function.
+ * <p>
+ * Possible initialisation values for an instance of this type are:
+ * <ul>
+ * <li>The block size in which to operate this block cipher instance. This
+ * value is <b>optional</b>, if unspecified, the block cipher's default block
+ * size shall be used.</li>
+ * <li>The byte array containing the user supplied key material to use for
+ * generating the cipher's session key(s). This value is <b>mandatory</b> and
+ * should be included in the initialisation parameters. If it isn't, an
+ * {@link IllegalStateException} will be thrown if any method, other than
+ * <code>reset()</code> is invoked on the instance. Furthermore, the size of
+ * this key material shall be taken as an indication on the key size in which to
+ * operate this instance.</li>
+ * </ul>
+ * <p>
+ * <b>IMPLEMENTATION NOTE</b>: Although all the concrete classes in this
+ * package implement the {@link Cloneable} interface, it is important to note
+ * here that such an operation <b>DOES NOT</b> clone any session key material
+ * that may have been used in initialising the source cipher (the instance to be
+ * cloned). Instead a clone of an already initialised cipher is another instance
+ * that operates with the <b>same block size</b> but without any knowledge of
+ * neither key material nor key size.
+ */
+public interface IBlockCipher
+    extends Cloneable
+{
+  /**
+   * Property name of the block size in which to operate a block cipher. The
+   * value associated with this property name is taken to be an {@link Integer}.
+   */
+  String CIPHER_BLOCK_SIZE = "gnu.crypto.cipher.block.size";
+  /**
+   * Property name of the user-supplied key material. The value associated to
+   * this property name is taken to be a byte array.
+   */
+  String KEY_MATERIAL = "gnu.crypto.cipher.key.material";
+
+  /**
+   * Returns the canonical name of this instance.
+   *
+   * @return the canonical name of this instance.
+   */
+  String name();
+
+  /**
+   * Returns the default value, in bytes, of the algorithm's block size.
+   *
+   * @return the default value, in bytes, of the algorithm's block size.
+   */
+  int defaultBlockSize();
+
+  /**
+   * Returns the default value, in bytes, of the algorithm's key size.
+   *
+   * @return the default value, in bytes, of the algorithm's key size.
+   */
+  int defaultKeySize();
+
+  /**
+   * Returns an {@link Iterator} over the supported block sizes. Each element
+   * returned by this object is an {@link Integer}.
+   *
+   * @return an {@link Iterator} over the supported block sizes.
+   */
+  Iterator blockSizes();
+
+  /**
+   * Returns an {@link Iterator} over the supported key sizes. Each element
+   * returned by this object is an {@link Integer}.
+   *
+   * @return an {@link Iterator} over the supported key sizes.
+   */
+  Iterator keySizes();
+
+  /**
+   * Returns a clone of this instance.
+   *
+   * @return a clone copy of this instance.
+   */
+  Object clone();
+
+  /**
+   * Initialises the algorithm with designated attributes. Permissible names and
+   * values are described in the class documentation above.
+   *
+   * @param attributes a set of name-value pairs that describes the desired
+   *          future behaviour of this instance.
+   * @exception InvalidKeyException if the key data is invalid.
+   * @exception IllegalStateException if the instance is already initialised.
+   * @see #KEY_MATERIAL
+   * @see #CIPHER_BLOCK_SIZE
+   */
+  void init(Map attributes) throws InvalidKeyException, IllegalStateException;
+
+  /**
+   * Returns the currently set block size for this instance.
+   *
+   * @return the current block size for this instance.
+   * @exception IllegalStateException if the instance is not initialised.
+   */
+  int currentBlockSize() throws IllegalStateException;
+
+  /**
+   * Resets the algorithm instance for re-initialisation and use with other
+   * characteristics. This method always succeeds.
+   */
+  void reset();
+
+  /**
+   * 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 result.
+   * @exception IllegalStateException if the instance is not initialised.
+   */
+  void encryptBlock(byte[] in, int inOffset, byte[] out, int outOffset)
+      throws IllegalStateException;
+
+  /**
+   * Decrypts exactly one block of ciphertext.
+   *
+   * @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 result.
+   * @exception IllegalStateException if the instance is not initialised.
+   */
+  void decryptBlock(byte[] in, int inOffset, byte[] out, int outOffset)
+      throws IllegalStateException;
+
+  /**
+   * 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();
+}