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diff --git a/libjava/classpath/java/security/AlgorithmParameters.java b/libjava/classpath/java/security/AlgorithmParameters.java
new file mode 100644
index 000000000..ba805143e
--- /dev/null
+++ b/libjava/classpath/java/security/AlgorithmParameters.java
@@ -0,0 +1,317 @@
+/* AlgorithmParameters.java --- Algorithm Parameters Implementation Class
+   Copyright (C) 1999, 2003, 2004  Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, 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 java.security;
+
+import gnu.java.lang.CPStringBuilder;
+
+import gnu.java.security.Engine;
+
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.security.spec.AlgorithmParameterSpec;
+import java.security.spec.InvalidParameterSpecException;
+
+/**
+ * <code>AlgorithmParameters</code> is an Algorithm Parameters class which
+ * provides an interface through which the user can manage the parameters of an
+ * Algorithm.
+ *
+ * @author Mark Benvenuto
+ * @since 1.2
+ * @see AlgorithmParameterSpec
+ * @see java.security.spec.DSAParameterSpec
+ * @see KeyPairGenerator
+ */
+public class AlgorithmParameters
+{
+  /** Service name for algorithm parameters. */
+  private static final String ALGORITHM_PARAMETERS = "AlgorithmParameters";
+
+  private AlgorithmParametersSpi paramSpi;
+  private Provider provider;
+  private String algorithm;
+
+  /**
+   * Constructs a new instance of <code>AlgorithmParameters</code>.
+   *
+   * @param paramSpi
+   *          the engine to use.
+   * @param provider
+   *          the provider to use.
+   * @param algorithm
+   *          the algorithm to use.
+   */
+  protected AlgorithmParameters(AlgorithmParametersSpi paramSpi,
+                                Provider provider, String algorithm)
+  {
+    this.paramSpi = paramSpi;
+    this.provider = provider;
+    this.algorithm = algorithm;
+  }
+
+  /** @return A string with the name of the algorithm used. */
+  public final String getAlgorithm()
+  {
+    return algorithm;
+  }
+
+  /**
+   * Returns a new instance of <code>AlgorithmParameters</code> representing
+   * the specified algorithm parameters.
+   * <p>
+   * The returned <code>AlgorithmParameters</code> must still be initialized
+   * with an <code>init()</code> method.
+   *
+   * @param algorithm the algorithm to use.
+   * @return the new instance repesenting the desired algorithm.
+   * @throws NoSuchAlgorithmException if the algorithm is not implemented by any
+   *           provider.
+   * @throws IllegalArgumentException if <code>algorithm</code> is
+   *           <code>null</code> or is an empty string.
+   */
+  public static AlgorithmParameters getInstance(String algorithm)
+      throws NoSuchAlgorithmException
+  {
+    Provider[] p = Security.getProviders();
+    NoSuchAlgorithmException lastException = null;
+    for (int i = 0; i < p.length; i++)
+      try
+        {
+          return getInstance(algorithm, p[i]);
+        }
+      catch (NoSuchAlgorithmException x)
+        {
+          lastException = x;
+        }
+    if (lastException != null)
+      throw lastException;
+    throw new NoSuchAlgorithmException(algorithm);
+  }
+
+  /**
+   * Returns a new instance of <code>AlgorithmParameters</code> representing
+   * the specified algorithm parameters from a named provider.
+   * <p>
+   * The returned <code>AlgorithmParameters</code> must still be intialized
+   * with an <code>init()</code> method.
+   * </p>
+   *
+   * @param algorithm the algorithm to use.
+   * @param provider the name of the {@link Provider} to use.
+   * @return the new instance repesenting the desired algorithm.
+   * @throws NoSuchAlgorithmException if the algorithm is not implemented by the
+   *           named provider.
+   * @throws NoSuchProviderException if the named provider was not found.
+   * @throws IllegalArgumentException if either <code>algorithm</code> or
+   *           <code>provider</code> is <code>null</code> or empty.
+   */
+  public static AlgorithmParameters getInstance(String algorithm,
+                                                String provider)
+      throws NoSuchAlgorithmException, NoSuchProviderException
+  {
+    if (provider == null)
+      throw new IllegalArgumentException("provider MUST NOT be null");
+    provider = provider.trim();
+    if (provider.length() == 0)
+      throw new IllegalArgumentException("provider MUST NOT be empty");
+    Provider p = Security.getProvider(provider);
+    if (p == null)
+      throw new NoSuchProviderException(provider);
+    return getInstance(algorithm, p);
+  }
+
+  /**
+   * Returns a new instance of <code>AlgorithmParameters</code> representing
+   * the specified algorithm parameters from the specified {@link Provider}.
+   * <p>
+   * The returned <code>AlgorithmParameters</code> must still be intialized
+   * with an <code>init()</code> method.
+   *
+   * @param algorithm the algorithm to use.
+   * @param provider the {@link Provider} to use.
+   * @return the new instance repesenting the desired algorithm.
+   * @throws NoSuchAlgorithmException if the algorithm is not implemented by the
+   *           {@link Provider}.
+   * @throws IllegalArgumentException if either <code>algorithm</code> or
+   *           <code>provider</code> is <code>null</code>, or if
+   *           <code>algorithm</code> is an empty string.
+   * @since 1.4
+   */
+  public static AlgorithmParameters getInstance(String algorithm,
+                                                Provider provider)
+      throws NoSuchAlgorithmException
+  {
+    CPStringBuilder sb = new CPStringBuilder("AlgorithmParameters for algorithm [")
+        .append(algorithm).append("] from provider[")
+        .append(provider).append("] could not be created");
+    Throwable cause;
+    try
+      {
+        Object spi = Engine.getInstance(ALGORITHM_PARAMETERS, algorithm, provider);
+        return new AlgorithmParameters((AlgorithmParametersSpi) spi,
+                                       provider,
+                                       algorithm);
+      }
+    catch (InvocationTargetException x)
+      {
+        cause = x.getCause();
+        if (cause instanceof NoSuchAlgorithmException)
+          throw (NoSuchAlgorithmException) cause;
+        if (cause == null)
+          cause = x;
+      }
+    catch (ClassCastException x)
+      {
+        cause = x;
+      }
+    NoSuchAlgorithmException x = new NoSuchAlgorithmException(sb.toString());
+    x.initCause(cause);
+    throw x;
+  }
+
+  /** @return the provider of this parameter object. */
+  public final Provider getProvider()
+  {
+    return provider;
+  }
+
+  /**
+   * Initializes the engine with the specified {@link AlgorithmParameterSpec}.
+   *
+   * @param paramSpec
+   *          A {@link AlgorithmParameterSpec} to use.
+   * @throws InvalidParameterSpecException
+   *           if <code>paramSpec</code> is invalid.
+   */
+  public final void init(AlgorithmParameterSpec paramSpec)
+    throws InvalidParameterSpecException
+  {
+    paramSpi.engineInit(paramSpec);
+  }
+
+  /**
+   * Initializes the engine with the specified parameters stored in the byte
+   * array and decodes them according to the ASN.1 specification. If the ASN.1
+   * specification exists then it succeeds otherwise an {@link IOException} is
+   * thrown.
+   *
+   * @param params
+   *          the parameters to use.
+   * @throws IOException
+   *           if a decoding error occurs.
+   */
+  public final void init(byte[]params) throws IOException
+  {
+    paramSpi.engineInit(params);
+  }
+
+  /**
+   * Initializes the engine with the specified parameters stored in the byte
+   * array and decodes them according to the specified decoding specification.
+   * If <code>format</code> is <code>null</code>, then this method decodes the
+   * byte array using the ASN.1 specification if it exists, otherwise it throws
+   * an {@link IOException}.
+   *
+   * @param params
+   *          the parameters to use.
+   * @param format
+   *          the name of decoding format to use.
+   * @throws IOException
+   *           if a decoding error occurs.
+   */
+  public final void init(byte[]params, String format) throws IOException
+  {
+    paramSpi.engineInit(params, format);
+  }
+
+  /**
+   * Returns a new instance of <code>AlgorithmParameters</code> as a
+   * designated parameter specification {@link Class}.
+   *
+   * @param paramSpec
+   *          the {@link Class} to use.
+   * @return the parameter specification.
+   * @throws InvalidParameterSpecException
+   *           if <code>paramSpec</code> is invalid.
+   */
+  public final <T extends AlgorithmParameterSpec>
+  T getParameterSpec(Class<T> paramSpec)
+    throws InvalidParameterSpecException
+  {
+    return paramSpi.engineGetParameterSpec(paramSpec);
+  }
+
+  /**
+   * Returns the parameters in the default encoding format. The primary encoding
+   * format is ASN.1 if it exists for the specified type.
+   *
+   * @return byte array representing the parameters.
+   */
+  public final byte[] getEncoded() throws IOException
+  {
+    return paramSpi.engineGetEncoded();
+  }
+
+  /**
+   * Returns the parameters in the specified encoding format. If
+   * <code>format</code> is <code>null</code> then the ASN.1 encoding
+   * format is used if it exists for the specified type.
+   *
+   * @param format
+   *          the name of the encoding format to use.
+   * @return the parameters encoded using the specified encoding scheme.
+   * @throws IOException
+   *           if an encoding exception occurs, or if this parameter object has
+   *           not been initialized.
+   */
+  public final byte[] getEncoded(String format) throws IOException
+  {
+    return paramSpi.engineGetEncoded(format);
+  }
+
+  /**
+   * Returns a string representation of the encoded form.
+   *
+   * @return a string representation of the encoded form.
+   */
+  public final String toString()
+  {
+    return paramSpi.engineToString();
+  }
+}