obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

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
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 160 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/java/security/sig/ISignature.java b/libjava/classpath/gnu/java/security/sig/ISignature.java
new file mode 100644
index 000000000..be98f9a9b
--- /dev/null
+++ b/libjava/classpath/gnu/java/security/sig/ISignature.java
@@ -0,0 +1,160 @@
+/* ISignature.java --
+   Copyright (C) 2001, 2002, 2003, 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.sig;
+
+import java.util.Map;
+
+/**
+ * The visible methods of every signature-with-appendix scheme.
+ * <p>
+ * The Handbook of Applied Cryptography (HAC), by A. Menezes &amp; al. states:
+ * "Digital signature schemes which require the message as input to the
+ * verification algorithm are called <i>digital signature schemes with appendix</i>.
+ * ... They rely on cryptographic hash functions rather than customised
+ * redundancy functions, and are less prone to existential forgery attacks."
+ * <p>
+ * References:
+ * <ol>
+ * <li><a href="http://www.cacr.math.uwaterloo.ca/hac/">Handbook of Applied
+ * Cryptography</a>, Alfred J. Menezes, Paul C. van Oorschot and Scott A.
+ * Vanstone. Section 11.2.2 Digital signature schemes with appendix.</li>
+ * </ol>
+ */
+public interface ISignature
+    extends Cloneable
+{
+  /** Property name of the verifier's public key. */
+  public static final String VERIFIER_KEY = "gnu.crypto.sig.public.key";
+
+  /** Property name of the signer's private key. */
+  public static final String SIGNER_KEY = "gnu.crypto.sig.private.key";
+
+  /**
+   * Property name of an optional {@link java.security.SecureRandom},
+   * {@link java.util.Random}, or {@link gnu.java.security.prng.IRandom}
+   * instance to use. The default is to use a classloader singleton from
+   * {@link gnu.java.security.util.PRNG}.
+   */
+  public static final String SOURCE_OF_RANDOMNESS = "gnu.crypto.sig.prng";
+
+  /**
+   * Returns the canonical name of this signature scheme.
+   *
+   * @return the canonical name of this instance.
+   */
+  String name();
+
+  /**
+   * Initialises this instance for signature verification.
+   *
+   * @param attributes the attributes to use for setting up this instance.
+   * @throws IllegalArgumentException if the designated public key is not
+   *           appropriate for this signature scheme.
+   * @see #SOURCE_OF_RANDOMNESS
+   * @see #VERIFIER_KEY
+   */
+  void setupVerify(Map attributes) throws IllegalArgumentException;
+
+  /**
+   * Initialises this instance for signature generation.
+   *
+   * @param attributes the attributes to use for setting up this instance.
+   * @throws IllegalArgumentException if the designated private key is not
+   *           appropriate for this signature scheme.
+   * @see #SOURCE_OF_RANDOMNESS
+   * @see #SIGNER_KEY
+   */
+  void setupSign(Map attributes) throws IllegalArgumentException;
+
+  /**
+   * Digests one byte of a message for signing or verification purposes.
+   *
+   * @param b the message byte to digest.
+   * @throws IllegalStateException if this instance was not setup for signature
+   *           generation/verification.
+   */
+  void update(byte b) throws IllegalStateException;
+
+  /**
+   * Digests a sequence of bytes from a message for signing or verification
+   * purposes.
+   *
+   * @param buffer the byte sequence to consider.
+   * @param offset the byte poisition in <code>buffer</code> of the first byte
+   *          to consider.
+   * @param length the number of bytes in <code>buffer</code> starting from
+   *          the byte at index <code>offset</code> to digest.
+   * @throws IllegalStateException if this instance was not setup for signature
+   *           generation/verification.
+   */
+  void update(byte[] buffer, int offset, int length)
+      throws IllegalStateException;
+
+  /**
+   * Terminates a signature generation phase by digesting and processing the
+   * context of the underlying message digest algorithm instance.
+   *
+   * @return a {@link Object} representing the native output of the signature
+   *         scheme implementation.
+   * @throws IllegalStateException if this instance was not setup for signature
+   *           generation.
+   */
+  Object sign() throws IllegalStateException;
+
+  /**
+   * Terminates a signature verification phase by digesting and processing the
+   * context of the underlying message digest algorithm instance.
+   *
+   * @param signature a native signature object previously generated by an
+   *          invocation of the <code>sign()</code> method.
+   * @return <code>true</code> iff the outpout of the verification phase
+   *         confirms that the designated signature object has been generated
+   *         using the corresponding public key of the recepient.
+   * @throws IllegalStateException if this instance was not setup for signature
+   *           verification.
+   */
+  boolean verify(Object signature) throws IllegalStateException;
+
+  /**
+   * Returns a clone copy of this instance.
+   *
+   * @return a clone copy of this instance.
+   */
+  Object clone();
+}