--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/security/AlgorithmParameterGeneratorSpi.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,86 @@
+/*
+ * Copyright 1997-1999 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package java.security;
+
+import java.security.spec.AlgorithmParameterSpec;
+
+/**
+ * This class defines the <i>Service Provider Interface</i> (<b>SPI</b>)
+ * for the <code>AlgorithmParameterGenerator</code> class, which
+ * is used to generate a set of parameters to be used with a certain algorithm.
+ *
+ * <p> All the abstract methods in this class must be implemented by each
+ * cryptographic service provider who wishes to supply the implementation
+ * of a parameter generator for a particular algorithm.
+ *
+ * <p> In case the client does not explicitly initialize the
+ * AlgorithmParameterGenerator (via a call to an <code>engineInit</code>
+ * method), each provider must supply (and document) a default initialization.
+ * For example, the Sun provider uses a default modulus prime size of 1024
+ * bits for the generation of DSA parameters.
+ *
+ * @author Jan Luehe
+ *
+ *
+ * @see AlgorithmParameterGenerator
+ * @see AlgorithmParameters
+ * @see java.security.spec.AlgorithmParameterSpec
+ *
+ * @since 1.2
+ */
+
+public abstract class AlgorithmParameterGeneratorSpi {
+
+    /**
+     * Initializes this parameter generator for a certain size
+     * and source of randomness.
+     *
+     * @param size the size (number of bits).
+     * @param random the source of randomness.
+     */
+    protected abstract void engineInit(int size, SecureRandom random);
+
+    /**
+     * Initializes this parameter generator with a set of
+     * algorithm-specific parameter generation values.
+     *
+     * @param genParamSpec the set of algorithm-specific parameter generation values.
+     * @param random the source of randomness.
+     *
+     * @exception InvalidAlgorithmParameterException if the given parameter
+     * generation values are inappropriate for this parameter generator.
+     */
+    protected abstract void engineInit(AlgorithmParameterSpec genParamSpec,
+                                       SecureRandom random)
+        throws InvalidAlgorithmParameterException;
+
+    /**
+     * Generates the parameters.
+     *
+     * @return the new AlgorithmParameters object.
+     */
+    protected abstract AlgorithmParameters engineGenerateParameters();
+}