8171277: Elliptic Curves for Security in Crypto

Implementations of X25519 and X448 key agreement in SunEC

Reviewed-by: mullan

src/java.base/share/classes/java/security/spec/NamedParameterSpec.java

@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2018, 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 java.security.spec;
+
+import java.util.Objects;
+
+/**
+ * This class is used to specify any algorithm parameters that are determined
+ * by a standard name. This class also holds constants for standard parameter
+ * set names. The names of these constants exactly match the corresponding
+ * parameter set name. For example, NamedParameterSpec.X25519 represents the
+ * parameter set identified by the string "X25519". These strings are defined
+ * in the <a href=
+ * "{@docRoot}/../specs/security/standard-names.html#parameter-spec-names">
+ *          Java Security Standard Algorithm Names Specification</a>.
+ *
+ * @since 11
+ *
+ */
+public class NamedParameterSpec implements AlgorithmParameterSpec {
+
+   /**
+    * The X25519 parameters
+    */
+    public static final NamedParameterSpec X25519
+        = new NamedParameterSpec("X25519");
+   /**
+    * The X448 parameters
+    */
+    public static final NamedParameterSpec X448
+        = new NamedParameterSpec("X448");
+
+    private String name;
+
+    /**
+     * Creates a parameter specification using a standard (or predefined)
+     * name {@code stdName}. For the
+     * list of supported names, please consult the documentation
+     * of the provider whose implementation will be used.
+     *
+     * @param stdName the standard name of the algorithm parameters
+     *
+     * @throws NullPointerException if {@code stdName}
+     * is null.
+     */
+    public NamedParameterSpec(String stdName) {
+        Objects.requireNonNull(stdName, "stdName must not be null");
+
+        this.name = stdName;
+    }
+
+    /**
+     * Returns the standard name that determines the algorithm parameters.
+     * @return the standard name.
+     */
+    public String getName() {
+        return name;
+    }
+}