8187443: Forest Consolidation: Move files to unified layout

Reviewed-by: darcy, ihse

src/java.base/share/classes/sun/security/provider/DSAParameters.java

@@ -0,0 +1,142 @@
+/*
+ * Copyright (c) 1997, 2011, Oracle and/or its affiliates. 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.security.provider;
+
+import java.io.*;
+import java.math.BigInteger;
+import java.security.AlgorithmParametersSpi;
+import java.security.spec.AlgorithmParameterSpec;
+import java.security.spec.DSAParameterSpec;
+import java.security.spec.InvalidParameterSpecException;
+
+import sun.security.util.Debug;
+import sun.security.util.DerValue;
+import sun.security.util.DerOutputStream;
+
+/**
+ * This class implements the parameter set used by the
+ * Digital Signature Algorithm as specified in the FIPS 186
+ * standard.
+ *
+ * @author Jan Luehe
+ *
+ *
+ * @since 1.2
+ */
+
+public class DSAParameters extends AlgorithmParametersSpi {
+
+    // the prime (p)
+    protected BigInteger p;
+
+    // the sub-prime (q)
+    protected BigInteger q;
+
+    // the base (g)
+    protected BigInteger g;
+
+    protected void engineInit(AlgorithmParameterSpec paramSpec)
+        throws InvalidParameterSpecException {
+            if (!(paramSpec instanceof DSAParameterSpec)) {
+                throw new InvalidParameterSpecException
+                    ("Inappropriate parameter specification");
+            }
+            this.p = ((DSAParameterSpec)paramSpec).getP();
+            this.q = ((DSAParameterSpec)paramSpec).getQ();
+            this.g = ((DSAParameterSpec)paramSpec).getG();
+    }
+
+    protected void engineInit(byte[] params) throws IOException {
+        DerValue encodedParams = new DerValue(params);
+
+        if (encodedParams.tag != DerValue.tag_Sequence) {
+            throw new IOException("DSA params parsing error");
+        }
+
+        encodedParams.data.reset();
+
+        this.p = encodedParams.data.getBigInteger();
+        this.q = encodedParams.data.getBigInteger();
+        this.g = encodedParams.data.getBigInteger();
+
+        if (encodedParams.data.available() != 0) {
+            throw new IOException("encoded params have " +
+                                  encodedParams.data.available() +
+                                  " extra bytes");
+        }
+    }
+
+    protected void engineInit(byte[] params, String decodingMethod)
+        throws IOException {
+            engineInit(params);
+    }
+
+    protected <T extends AlgorithmParameterSpec>
+        T engineGetParameterSpec(Class<T> paramSpec)
+        throws InvalidParameterSpecException
+    {
+            try {
+                Class<?> dsaParamSpec = Class.forName
+                    ("java.security.spec.DSAParameterSpec");
+                if (dsaParamSpec.isAssignableFrom(paramSpec)) {
+                    return paramSpec.cast(
+                            new DSAParameterSpec(this.p, this.q, this.g));
+                } else {
+                    throw new InvalidParameterSpecException
+                        ("Inappropriate parameter Specification");
+                }
+            } catch (ClassNotFoundException e) {
+                throw new InvalidParameterSpecException
+                    ("Unsupported parameter specification: " + e.getMessage());
+            }
+    }
+
+    protected byte[] engineGetEncoded() throws IOException {
+        DerOutputStream out = new DerOutputStream();
+        DerOutputStream bytes = new DerOutputStream();
+
+        bytes.putInteger(p);
+        bytes.putInteger(q);
+        bytes.putInteger(g);
+        out.write(DerValue.tag_Sequence, bytes);
+        return out.toByteArray();
+    }
+
+    protected byte[] engineGetEncoded(String encodingMethod)
+        throws IOException {
+            return engineGetEncoded();
+    }
+
+    /*
+     * Returns a formatted string describing the parameters.
+     */
+    protected String engineToString() {
+        return "\n\tp: " + Debug.toHexString(p)
+            + "\n\tq: " + Debug.toHexString(q)
+            + "\n\tg: " + Debug.toHexString(g)
+            + "\n";
+    }
+}