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diff --git a/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/pad/PKCS1_V1_5.java b/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/pad/PKCS1_V1_5.java
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+/* PKCS1_V1_5.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.pad;
+
+import gnu.java.security.Configuration;
+import gnu.java.security.Registry;
+import gnu.java.security.sig.rsa.EME_PKCS1_V1_5;
+import gnu.java.security.util.PRNG;
+import gnu.java.security.util.Util;
+
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * A padding algorithm implementation of the EME-PKCS1-V1.5 encoding/decoding
+ * algorithm as described in section 7.2 of RFC-3447. This is effectively an
+ * <i>Adapter</i> over an instance of {@link EME_PKCS1_V1_5} initialised with
+ * the RSA public shared modulus length (in bytes).
+ * <p>
+ * References:
+ * <ol>
+ * <li><a href="http://www.ietf.org/rfc/rfc3447.txt">Public-Key Cryptography
+ * Standards (PKCS) #1:</a><br>
+ * RSA Cryptography Specifications Version 2.1.<br>
+ * Jakob Jonsson and Burt Kaliski.</li>
+ * </ol>
+ *
+ * @see EME_PKCS1_V1_5
+ */
+public class PKCS1_V1_5
+ extends BasePad
+{
+ private static final Logger log = Logger.getLogger(PKCS1_V1_5.class.getName());
+ private EME_PKCS1_V1_5 codec;
+
+ /**
+ * Trivial package-private constructor for use by the <i>Factory</i> class.
+ *
+ * @see PadFactory
+ */
+ PKCS1_V1_5()
+ {
+ super(Registry.EME_PKCS1_V1_5_PAD);
+ }
+
+ public void setup()
+ {
+ codec = EME_PKCS1_V1_5.getInstance(blockSize);
+ }
+
+ public byte[] pad(final byte[] in, final int offset, final int length)
+ {
+ final byte[] M = new byte[length];
+ System.arraycopy(in, offset, M, 0, length);
+ final byte[] EM = codec.encode(M);
+ final byte[] result = new byte[blockSize - length];
+ System.arraycopy(EM, 0, result, 0, result.length);
+ if (Configuration.DEBUG)
+ log.fine("padding: 0x" + Util.toString(result));
+ return result;
+ }
+
+ public int unpad(final byte[] in, final int offset, final int length)
+ throws WrongPaddingException
+ {
+ final byte[] EM = new byte[length];
+ System.arraycopy(in, offset, EM, 0, length);
+ final int result = length - codec.decode(EM).length;
+ if (Configuration.DEBUG)
+ log.fine("padding length: " + String.valueOf(result));
+ return result;
+ }
+
+ public boolean selfTest()
+ {
+ final int[] mLen = new int[] { 16, 20, 32, 48, 64 };
+ final byte[] M = new byte[mLen[mLen.length - 1]];
+ PRNG.getInstance().nextBytes(M);
+ final byte[] EM = new byte[1024];
+ byte[] p;
+ int bs, i, j;
+ for (bs = 256; bs < 1025; bs += 256)
+ {
+ init(bs);
+ for (i = 0; i < mLen.length; i++)
+ {
+ j = mLen[i];
+ p = pad(M, 0, j);
+ if (j + p.length != blockSize)
+ {
+ if (Configuration.DEBUG)
+ log.log(Level.SEVERE,
+ "Length of padded text MUST be a multiple of "
+ + blockSize, new RuntimeException(name()));
+ return false;
+ }
+ System.arraycopy(p, 0, EM, 0, p.length);
+ System.arraycopy(M, 0, EM, p.length, j);
+ try
+ {
+ if (p.length != unpad(EM, 0, blockSize))
+ {
+ if (Configuration.DEBUG)
+ log.log(Level.SEVERE, "Failed symmetric operation",
+ new RuntimeException(name()));
+ return false;
+ }
+ }
+ catch (WrongPaddingException x)
+ {
+ if (Configuration.DEBUG)
+ log.throwing(this.getClass().getName(), "selfTest", x);
+ return false;
+ }
+ }
+ reset();
+ }
+ return true;
+ }
+}