--- old/src/jdk.crypto.token/share/classes/sun/security/pkcs11/P11ECDHKeyAgreement.java 2017-01-18 23:06:45.195886752 -0800 +++ /dev/null 2017-01-18 09:30:05.425422781 -0800 @@ -1,214 +0,0 @@ -/* - * Copyright (c) 2006, 2007, 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.pkcs11; - -import java.security.*; -import java.security.interfaces.ECPublicKey; -import java.security.spec.AlgorithmParameterSpec; - -import javax.crypto.*; - -import static sun.security.pkcs11.TemplateManager.*; -import sun.security.pkcs11.wrapper.*; -import static sun.security.pkcs11.wrapper.PKCS11Constants.*; - -/** - * KeyAgreement implementation for ECDH. - * - * @author Andreas Sterbenz - * @since 1.6 - */ -final class P11ECDHKeyAgreement extends KeyAgreementSpi { - - // token instance - private final Token token; - - // algorithm name - private final String algorithm; - - // mechanism id - private final long mechanism; - - // private key, if initialized - private P11Key privateKey; - - // encoded public point, non-null between doPhase() and generateSecret() only - private byte[] publicValue; - - // length of the secret to be derived - private int secretLen; - - P11ECDHKeyAgreement(Token token, String algorithm, long mechanism) { - super(); - this.token = token; - this.algorithm = algorithm; - this.mechanism = mechanism; - } - - // see JCE spec - protected void engineInit(Key key, SecureRandom random) - throws InvalidKeyException { - if (key instanceof PrivateKey == false) { - throw new InvalidKeyException - ("Key must be instance of PrivateKey"); - } - privateKey = P11KeyFactory.convertKey(token, key, "EC"); - publicValue = null; - } - - // see JCE spec - protected void engineInit(Key key, AlgorithmParameterSpec params, - SecureRandom random) throws InvalidKeyException, - InvalidAlgorithmParameterException { - if (params != null) { - throw new InvalidAlgorithmParameterException - ("Parameters not supported"); - } - engineInit(key, random); - } - - // see JCE spec - protected Key engineDoPhase(Key key, boolean lastPhase) - throws InvalidKeyException, IllegalStateException { - if (privateKey == null) { - throw new IllegalStateException("Not initialized"); - } - if (publicValue != null) { - throw new IllegalStateException("Phase already executed"); - } - if (lastPhase == false) { - throw new IllegalStateException - ("Only two party agreement supported, lastPhase must be true"); - } - if (key instanceof ECPublicKey == false) { - throw new InvalidKeyException - ("Key must be a PublicKey with algorithm EC"); - } - ECPublicKey ecKey = (ECPublicKey)key; - int keyLenBits = ecKey.getParams().getCurve().getField().getFieldSize(); - secretLen = (keyLenBits + 7) >> 3; - publicValue = P11ECKeyFactory.getEncodedPublicValue(ecKey); - return null; - } - - // see JCE spec - protected byte[] engineGenerateSecret() throws IllegalStateException { - if ((privateKey == null) || (publicValue == null)) { - throw new IllegalStateException("Not initialized correctly"); - } - Session session = null; - try { - session = token.getOpSession(); - CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] { - new CK_ATTRIBUTE(CKA_CLASS, CKO_SECRET_KEY), - new CK_ATTRIBUTE(CKA_KEY_TYPE, CKK_GENERIC_SECRET), - }; - CK_ECDH1_DERIVE_PARAMS ckParams = - new CK_ECDH1_DERIVE_PARAMS(CKD_NULL, null, publicValue); - attributes = token.getAttributes - (O_GENERATE, CKO_SECRET_KEY, CKK_GENERIC_SECRET, attributes); - long keyID = token.p11.C_DeriveKey(session.id(), - new CK_MECHANISM(mechanism, ckParams), privateKey.keyID, - attributes); - attributes = new CK_ATTRIBUTE[] { - new CK_ATTRIBUTE(CKA_VALUE) - }; - token.p11.C_GetAttributeValue(session.id(), keyID, attributes); - byte[] secret = attributes[0].getByteArray(); - token.p11.C_DestroyObject(session.id(), keyID); - return secret; - } catch (PKCS11Exception e) { - throw new ProviderException("Could not derive key", e); - } finally { - publicValue = null; - token.releaseSession(session); - } - } - - // see JCE spec - protected int engineGenerateSecret(byte[] sharedSecret, int - offset) throws IllegalStateException, ShortBufferException { - if (offset + secretLen > sharedSecret.length) { - throw new ShortBufferException("Need " + secretLen - + " bytes, only " + (sharedSecret.length - offset) + " available"); - } - byte[] secret = engineGenerateSecret(); - System.arraycopy(secret, 0, sharedSecret, offset, secret.length); - return secret.length; - } - - // see JCE spec - protected SecretKey engineGenerateSecret(String algorithm) - throws IllegalStateException, NoSuchAlgorithmException, - InvalidKeyException { - if (algorithm == null) { - throw new NoSuchAlgorithmException("Algorithm must not be null"); - } - if (algorithm.equals("TlsPremasterSecret") == false) { - throw new NoSuchAlgorithmException - ("Only supported for algorithm TlsPremasterSecret"); - } - return nativeGenerateSecret(algorithm); - } - - private SecretKey nativeGenerateSecret(String algorithm) - throws IllegalStateException, NoSuchAlgorithmException, - InvalidKeyException { - if ((privateKey == null) || (publicValue == null)) { - throw new IllegalStateException("Not initialized correctly"); - } - long keyType = CKK_GENERIC_SECRET; - Session session = null; - try { - session = token.getObjSession(); - CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] { - new CK_ATTRIBUTE(CKA_CLASS, CKO_SECRET_KEY), - new CK_ATTRIBUTE(CKA_KEY_TYPE, keyType), - }; - CK_ECDH1_DERIVE_PARAMS ckParams = - new CK_ECDH1_DERIVE_PARAMS(CKD_NULL, null, publicValue); - attributes = token.getAttributes - (O_GENERATE, CKO_SECRET_KEY, keyType, attributes); - long keyID = token.p11.C_DeriveKey(session.id(), - new CK_MECHANISM(mechanism, ckParams), privateKey.keyID, - attributes); - CK_ATTRIBUTE[] lenAttributes = new CK_ATTRIBUTE[] { - new CK_ATTRIBUTE(CKA_VALUE_LEN), - }; - token.p11.C_GetAttributeValue(session.id(), keyID, lenAttributes); - int keyLen = (int)lenAttributes[0].getLong(); - SecretKey key = P11Key.secretKey - (session, keyID, algorithm, keyLen << 3, attributes); - return key; - } catch (PKCS11Exception e) { - throw new InvalidKeyException("Could not derive key", e); - } finally { - publicValue = null; - token.releaseSession(session); - } - } - -}