--- a/src/java.base/share/classes/sun/security/ssl/ECDHCrypt.java	Mon Jun 25 21:22:16 2018 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,153 +0,0 @@
-/*
- * Copyright (c) 2006, 2017, 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.ssl;
-
-import java.security.*;
-import java.security.interfaces.ECPublicKey;
-import java.security.spec.*;
-
-import java.util.EnumSet;
-import javax.crypto.SecretKey;
-import javax.crypto.KeyAgreement;
-import javax.net.ssl.SSLHandshakeException;
-
-/**
- * Helper class for the ECDH key exchange. It generates the appropriate
- * ephemeral keys as necessary and performs the actual shared secret derivation.
- *
- * @since   1.6
- * @author  Andreas Sterbenz
- */
-final class ECDHCrypt {
-
-    // our private key
-    private PrivateKey privateKey;
-
-    // our public key
-    private ECPublicKey publicKey;
-
-    // Called by ServerHandshaker for static ECDH
-    ECDHCrypt(PrivateKey privateKey, PublicKey publicKey) {
-        this.privateKey = privateKey;
-        this.publicKey = (ECPublicKey)publicKey;
-    }
-
-    // Called by ServerHandshaker for ephemeral ECDH
-    ECDHCrypt(NamedGroup namedGroup, SecureRandom random) {
-        try {
-            KeyPairGenerator kpg = JsseJce.getKeyPairGenerator("EC");
-            ECGenParameterSpec params =
-                    SupportedGroupsExtension.getECGenParamSpec(namedGroup);
-            kpg.initialize(params, random);
-            KeyPair kp = kpg.generateKeyPair();
-            privateKey = kp.getPrivate();
-            publicKey = (ECPublicKey)kp.getPublic();
-        } catch (GeneralSecurityException e) {
-            throw new RuntimeException("Could not generate ECDH keypair", e);
-        }
-    }
-
-    // Called by ClientHandshaker with params it received from the server
-    ECDHCrypt(ECParameterSpec params, SecureRandom random) {
-        try {
-            KeyPairGenerator kpg = JsseJce.getKeyPairGenerator("EC");
-            kpg.initialize(params, random);
-            KeyPair kp = kpg.generateKeyPair();
-            privateKey = kp.getPrivate();
-            publicKey = (ECPublicKey)kp.getPublic();
-        } catch (GeneralSecurityException e) {
-            throw new RuntimeException("Could not generate ECDH keypair", e);
-        }
-    }
-
-    /**
-     * Gets the public key of this end of the key exchange.
-     */
-    PublicKey getPublicKey() {
-        return publicKey;
-    }
-
-    // called by ClientHandshaker with either the server's static or
-    // ephemeral public key
-    SecretKey getAgreedSecret(
-            PublicKey peerPublicKey) throws SSLHandshakeException {
-
-        try {
-            KeyAgreement ka = JsseJce.getKeyAgreement("ECDH");
-            ka.init(privateKey);
-            ka.doPhase(peerPublicKey, true);
-            return ka.generateSecret("TlsPremasterSecret");
-        } catch (GeneralSecurityException e) {
-            throw (SSLHandshakeException) new SSLHandshakeException(
-                "Could not generate secret").initCause(e);
-        }
-    }
-
-    // called by ServerHandshaker
-    SecretKey getAgreedSecret(
-            byte[] encodedPoint) throws SSLHandshakeException {
-
-        try {
-            ECParameterSpec params = publicKey.getParams();
-            ECPoint point =
-                    JsseJce.decodePoint(encodedPoint, params.getCurve());
-            KeyFactory kf = JsseJce.getKeyFactory("EC");
-            ECPublicKeySpec spec = new ECPublicKeySpec(point, params);
-            PublicKey peerPublicKey = kf.generatePublic(spec);
-            return getAgreedSecret(peerPublicKey);
-        } catch (GeneralSecurityException | java.io.IOException e) {
-            throw (SSLHandshakeException) new SSLHandshakeException(
-                "Could not generate secret").initCause(e);
-        }
-    }
-
-    // Check constraints of the specified EC public key.
-    void checkConstraints(AlgorithmConstraints constraints,
-            byte[] encodedPoint) throws SSLHandshakeException {
-
-        try {
-
-            ECParameterSpec params = publicKey.getParams();
-            ECPoint point =
-                    JsseJce.decodePoint(encodedPoint, params.getCurve());
-            ECPublicKeySpec spec = new ECPublicKeySpec(point, params);
-
-            KeyFactory kf = JsseJce.getKeyFactory("EC");
-            ECPublicKey publicKey = (ECPublicKey)kf.generatePublic(spec);
-
-            // check constraints of ECPublicKey
-            if (!constraints.permits(
-                    EnumSet.of(CryptoPrimitive.KEY_AGREEMENT), publicKey)) {
-                throw new SSLHandshakeException(
-                    "ECPublicKey does not comply to algorithm constraints");
-            }
-        } catch (GeneralSecurityException | java.io.IOException e) {
-            throw (SSLHandshakeException) new SSLHandshakeException(
-                    "Could not generate ECPublicKey").initCause(e);
-        }
-    }
-
-}