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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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1 files changed, 147 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/javax/crypto/key/srp6/SRPKey.java b/libjava/classpath/gnu/javax/crypto/key/srp6/SRPKey.java
new file mode 100644
index 000000000..72ce8d2cf
--- /dev/null
+++ b/libjava/classpath/gnu/javax/crypto/key/srp6/SRPKey.java
@@ -0,0 +1,147 @@
+/* SRPKey.java --
+   Copyright (C) 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.javax.crypto.key.srp6;
+
+import gnu.java.security.Registry;
+import gnu.java.security.key.IKeyPairCodec;
+
+import java.io.Serializable;
+import java.math.BigInteger;
+import java.security.Key;
+
+/**
+ * An abstract representation of a base SRP ephemeral key.
+ * <p>
+ * This object encapsulates the two numbers:
+ * <ul>
+ * <li><b>N</b>: A large safe prime (N = 2q+1, where q is prime).</li>
+ * <li><b>g</b>: A generator modulo N.</li>
+ * </ul>
+ * <p>
+ * Note that in SRP, all arithmetic is done modulo N.
+ * <p>
+ * Reference:
+ * <ol>
+ * <li><a href="http://srp.stanford.edu/design.html">SRP Protocol Design</a><br>
+ * Thomas J. Wu.</li>
+ * </ol>
+ */
+public abstract class SRPKey
+    implements Key, Serializable
+{
+  /** The public, Germaine prime, shared modulus. */
+  protected final BigInteger N;
+  /** The generator. */
+  protected final BigInteger g;
+
+  protected SRPKey(BigInteger N, BigInteger g)
+  {
+    super();
+
+    this.N = N;
+    this.g = g;
+  }
+
+  /**
+   * Returns the standard algorithm name for this key.
+   *
+   * @return the standard algorithm name for this key.
+   */
+  public String getAlgorithm()
+  {
+    return Registry.SRP_KPG;
+  }
+
+  /** @deprecated see getEncoded(int). */
+  public byte[] getEncoded()
+  {
+    return getEncoded(IKeyPairCodec.RAW_FORMAT);
+  }
+
+  /**
+   * Returns {@link Registry#RAW_ENCODING_SHORT_NAME} which is the sole format
+   * supported for this type of keys.
+   *
+   * @return {@link Registry#RAW_ENCODING_SHORT_NAME} ALWAYS.
+   */
+  public String getFormat()
+  {
+    return Registry.RAW_ENCODING_SHORT_NAME;
+  }
+
+  /**
+   * Returns the public shared modulus.
+   *
+   * @return <code>N</code>.
+   */
+  public BigInteger getN()
+  {
+    return N;
+  }
+
+  /**
+   * Returns the generator.
+   *
+   * @return <code>g</code>.
+   */
+  public BigInteger getG()
+  {
+    return g;
+  }
+
+  /**
+   * Returns <code>true</code> if the designated object is an instance of
+   * <code>SRPKey</code> and has the same SRP parameter values as this one.
+   *
+   * @param obj the other non-null SRP key to compare to.
+   * @return <code>true</code> if the designated object is of the same type
+   *         and value as this one.
+   */
+  public boolean equals(Object obj)
+  {
+    if (obj == null)
+      return false;
+    if (! (obj instanceof SRPKey))
+      return false;
+    SRPKey that = (SRPKey) obj;
+    return N.equals(that.getN()) && g.equals(that.getG());
+  }
+
+  public abstract byte[] getEncoded(int format);
+}