| /* |
| * Copyright (c) 2003, 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.math.BigInteger; |
| |
| import java.security.*; |
| import java.security.spec.*; |
| |
| import javax.crypto.interfaces.*; |
| import javax.crypto.spec.*; |
| |
| import static sun.security.pkcs11.TemplateManager.*; |
| import sun.security.pkcs11.wrapper.*; |
| import static sun.security.pkcs11.wrapper.PKCS11Constants.*; |
| |
| /** |
| * DH KeyFactory implemenation. |
| * |
| * @author Andreas Sterbenz |
| * @since 1.5 |
| */ |
| final class P11DHKeyFactory extends P11KeyFactory { |
| |
| P11DHKeyFactory(Token token, String algorithm) { |
| super(token, algorithm); |
| } |
| |
| PublicKey implTranslatePublicKey(PublicKey key) throws InvalidKeyException { |
| try { |
| if (key instanceof DHPublicKey) { |
| DHPublicKey dhKey = (DHPublicKey)key; |
| DHParameterSpec params = dhKey.getParams(); |
| return generatePublic( |
| dhKey.getY(), |
| params.getP(), |
| params.getG() |
| ); |
| } else if ("X.509".equals(key.getFormat())) { |
| // let SunJCE provider parse for us, then recurse |
| try { |
| KeyFactory factory = implGetSoftwareFactory(); |
| key = (PublicKey)factory.translateKey(key); |
| return implTranslatePublicKey(key); |
| } catch (GeneralSecurityException e) { |
| throw new InvalidKeyException("Could not translate key", e); |
| } |
| } else { |
| throw new InvalidKeyException("PublicKey must be instance " |
| + "of DHPublicKey or have X.509 encoding"); |
| } |
| } catch (PKCS11Exception e) { |
| throw new InvalidKeyException("Could not create DH public key", e); |
| } |
| } |
| |
| PrivateKey implTranslatePrivateKey(PrivateKey key) |
| throws InvalidKeyException { |
| try { |
| if (key instanceof DHPrivateKey) { |
| DHPrivateKey dhKey = (DHPrivateKey)key; |
| DHParameterSpec params = dhKey.getParams(); |
| return generatePrivate( |
| dhKey.getX(), |
| params.getP(), |
| params.getG() |
| ); |
| } else if ("PKCS#8".equals(key.getFormat())) { |
| // let SunJCE provider parse for us, then recurse |
| try { |
| KeyFactory factory = implGetSoftwareFactory(); |
| key = (PrivateKey)factory.translateKey(key); |
| return implTranslatePrivateKey(key); |
| } catch (GeneralSecurityException e) { |
| throw new InvalidKeyException("Could not translate key", e); |
| } |
| } else { |
| throw new InvalidKeyException("PrivateKey must be instance " |
| + "of DHPrivateKey or have PKCS#8 encoding"); |
| } |
| } catch (PKCS11Exception e) { |
| throw new InvalidKeyException("Could not create DH private key", e); |
| } |
| } |
| |
| // see JCA spec |
| protected PublicKey engineGeneratePublic(KeySpec keySpec) |
| throws InvalidKeySpecException { |
| token.ensureValid(); |
| if (keySpec instanceof X509EncodedKeySpec) { |
| try { |
| KeyFactory factory = implGetSoftwareFactory(); |
| PublicKey key = factory.generatePublic(keySpec); |
| return implTranslatePublicKey(key); |
| } catch (GeneralSecurityException e) { |
| throw new InvalidKeySpecException |
| ("Could not create DH public key", e); |
| } |
| } |
| if (keySpec instanceof DHPublicKeySpec == false) { |
| throw new InvalidKeySpecException("Only DHPublicKeySpec and " |
| + "X509EncodedKeySpec supported for DH public keys"); |
| } |
| try { |
| DHPublicKeySpec ds = (DHPublicKeySpec)keySpec; |
| return generatePublic( |
| ds.getY(), |
| ds.getP(), |
| ds.getG() |
| ); |
| } catch (PKCS11Exception e) { |
| throw new InvalidKeySpecException |
| ("Could not create DH public key", e); |
| } |
| } |
| |
| // see JCA spec |
| protected PrivateKey engineGeneratePrivate(KeySpec keySpec) |
| throws InvalidKeySpecException { |
| token.ensureValid(); |
| if (keySpec instanceof PKCS8EncodedKeySpec) { |
| try { |
| KeyFactory factory = implGetSoftwareFactory(); |
| PrivateKey key = factory.generatePrivate(keySpec); |
| return implTranslatePrivateKey(key); |
| } catch (GeneralSecurityException e) { |
| throw new InvalidKeySpecException |
| ("Could not create DH private key", e); |
| } |
| } |
| if (keySpec instanceof DHPrivateKeySpec == false) { |
| throw new InvalidKeySpecException("Only DHPrivateKeySpec and " |
| + "PKCS8EncodedKeySpec supported for DH private keys"); |
| } |
| try { |
| DHPrivateKeySpec ds = (DHPrivateKeySpec)keySpec; |
| return generatePrivate( |
| ds.getX(), |
| ds.getP(), |
| ds.getG() |
| ); |
| } catch (PKCS11Exception e) { |
| throw new InvalidKeySpecException |
| ("Could not create DH private key", e); |
| } |
| } |
| |
| private PublicKey generatePublic(BigInteger y, BigInteger p, BigInteger g) |
| throws PKCS11Exception { |
| CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] { |
| new CK_ATTRIBUTE(CKA_CLASS, CKO_PUBLIC_KEY), |
| new CK_ATTRIBUTE(CKA_KEY_TYPE, CKK_DH), |
| new CK_ATTRIBUTE(CKA_VALUE, y), |
| new CK_ATTRIBUTE(CKA_PRIME, p), |
| new CK_ATTRIBUTE(CKA_BASE, g), |
| }; |
| attributes = token.getAttributes |
| (O_IMPORT, CKO_PUBLIC_KEY, CKK_DH, attributes); |
| Session session = null; |
| try { |
| session = token.getObjSession(); |
| long keyID = token.p11.C_CreateObject(session.id(), attributes); |
| return P11Key.publicKey |
| (session, keyID, "DH", p.bitLength(), attributes); |
| } finally { |
| token.releaseSession(session); |
| } |
| } |
| |
| private PrivateKey generatePrivate(BigInteger x, BigInteger p, |
| BigInteger g) throws PKCS11Exception { |
| CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] { |
| new CK_ATTRIBUTE(CKA_CLASS, CKO_PRIVATE_KEY), |
| new CK_ATTRIBUTE(CKA_KEY_TYPE, CKK_DH), |
| new CK_ATTRIBUTE(CKA_VALUE, x), |
| new CK_ATTRIBUTE(CKA_PRIME, p), |
| new CK_ATTRIBUTE(CKA_BASE, g), |
| }; |
| attributes = token.getAttributes |
| (O_IMPORT, CKO_PRIVATE_KEY, CKK_DH, attributes); |
| Session session = null; |
| try { |
| session = token.getObjSession(); |
| long keyID = token.p11.C_CreateObject(session.id(), attributes); |
| return P11Key.privateKey |
| (session, keyID, "DH", p.bitLength(), attributes); |
| } finally { |
| token.releaseSession(session); |
| } |
| } |
| |
| KeySpec implGetPublicKeySpec(P11Key key, Class keySpec, Session[] session) |
| throws PKCS11Exception, InvalidKeySpecException { |
| if (DHPublicKeySpec.class.isAssignableFrom(keySpec)) { |
| session[0] = token.getObjSession(); |
| CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] { |
| new CK_ATTRIBUTE(CKA_VALUE), |
| new CK_ATTRIBUTE(CKA_PRIME), |
| new CK_ATTRIBUTE(CKA_BASE), |
| }; |
| token.p11.C_GetAttributeValue(session[0].id(), key.keyID, attributes); |
| KeySpec spec = new DHPublicKeySpec( |
| attributes[0].getBigInteger(), |
| attributes[1].getBigInteger(), |
| attributes[2].getBigInteger() |
| ); |
| return spec; |
| } else { // X.509 handled in superclass |
| throw new InvalidKeySpecException("Only DHPublicKeySpec and " |
| + "X509EncodedKeySpec supported for DH public keys"); |
| } |
| } |
| |
| KeySpec implGetPrivateKeySpec(P11Key key, Class keySpec, Session[] session) |
| throws PKCS11Exception, InvalidKeySpecException { |
| if (DHPrivateKeySpec.class.isAssignableFrom(keySpec)) { |
| session[0] = token.getObjSession(); |
| CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] { |
| new CK_ATTRIBUTE(CKA_VALUE), |
| new CK_ATTRIBUTE(CKA_PRIME), |
| new CK_ATTRIBUTE(CKA_BASE), |
| }; |
| token.p11.C_GetAttributeValue(session[0].id(), key.keyID, attributes); |
| KeySpec spec = new DHPrivateKeySpec( |
| attributes[0].getBigInteger(), |
| attributes[1].getBigInteger(), |
| attributes[2].getBigInteger() |
| ); |
| return spec; |
| } else { // PKCS#8 handled in superclass |
| throw new InvalidKeySpecException("Only DHPrivateKeySpec " |
| + "and PKCS8EncodedKeySpec supported for DH private keys"); |
| } |
| } |
| |
| KeyFactory implGetSoftwareFactory() throws GeneralSecurityException { |
| return KeyFactory.getInstance("DH", P11Util.getSunJceProvider()); |
| } |
| |
| } |