jdk/src/jdk.crypto.cryptoki/share/classes/sun/security/pkcs11/P11DSAKeyFactory.java
changeset 43248 5e15de85a1a0
parent 42693 6645de32a866
equal deleted inserted replaced
43247:8d242299a219 43248:5e15de85a1a0
       
     1 /*
       
     2  * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
       
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
       
     4  *
       
     5  * This code is free software; you can redistribute it and/or modify it
       
     6  * under the terms of the GNU General Public License version 2 only, as
       
     7  * published by the Free Software Foundation.  Oracle designates this
       
     8  * particular file as subject to the "Classpath" exception as provided
       
     9  * by Oracle in the LICENSE file that accompanied this code.
       
    10  *
       
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
       
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
       
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
       
    14  * version 2 for more details (a copy is included in the LICENSE file that
       
    15  * accompanied this code).
       
    16  *
       
    17  * You should have received a copy of the GNU General Public License version
       
    18  * 2 along with this work; if not, write to the Free Software Foundation,
       
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
       
    20  *
       
    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
       
    22  * or visit www.oracle.com if you need additional information or have any
       
    23  * questions.
       
    24  */
       
    25 
       
    26 package sun.security.pkcs11;
       
    27 
       
    28 import java.math.BigInteger;
       
    29 
       
    30 import java.security.*;
       
    31 import java.security.interfaces.*;
       
    32 import java.security.spec.*;
       
    33 
       
    34 import static sun.security.pkcs11.TemplateManager.*;
       
    35 import sun.security.pkcs11.wrapper.*;
       
    36 import static sun.security.pkcs11.wrapper.PKCS11Constants.*;
       
    37 
       
    38 /**
       
    39  * DSA KeyFactory implementation.
       
    40  *
       
    41  * @author  Andreas Sterbenz
       
    42  * @since   1.5
       
    43  */
       
    44 final class P11DSAKeyFactory extends P11KeyFactory {
       
    45 
       
    46     P11DSAKeyFactory(Token token, String algorithm) {
       
    47         super(token, algorithm);
       
    48     }
       
    49 
       
    50     PublicKey implTranslatePublicKey(PublicKey key) throws InvalidKeyException {
       
    51         try {
       
    52             if (key instanceof DSAPublicKey) {
       
    53                 DSAPublicKey dsaKey = (DSAPublicKey)key;
       
    54                 DSAParams params = dsaKey.getParams();
       
    55                 return generatePublic(
       
    56                     dsaKey.getY(),
       
    57                     params.getP(),
       
    58                     params.getQ(),
       
    59                     params.getG()
       
    60                 );
       
    61             } else if ("X.509".equals(key.getFormat())) {
       
    62                 // let Sun provider parse for us, then recurse
       
    63                 byte[] encoded = key.getEncoded();
       
    64                 key = new sun.security.provider.DSAPublicKey(encoded);
       
    65                 return implTranslatePublicKey(key);
       
    66             } else {
       
    67                 throw new InvalidKeyException("PublicKey must be instance "
       
    68                         + "of DSAPublicKey or have X.509 encoding");
       
    69             }
       
    70         } catch (PKCS11Exception e) {
       
    71             throw new InvalidKeyException("Could not create DSA public key", e);
       
    72         }
       
    73     }
       
    74 
       
    75     PrivateKey implTranslatePrivateKey(PrivateKey key)
       
    76             throws InvalidKeyException {
       
    77         try {
       
    78             if (key instanceof DSAPrivateKey) {
       
    79                 DSAPrivateKey dsaKey = (DSAPrivateKey)key;
       
    80                 DSAParams params = dsaKey.getParams();
       
    81                 return generatePrivate(
       
    82                     dsaKey.getX(),
       
    83                     params.getP(),
       
    84                     params.getQ(),
       
    85                     params.getG()
       
    86                 );
       
    87             } else if ("PKCS#8".equals(key.getFormat())) {
       
    88                 // let Sun provider parse for us, then recurse
       
    89                 byte[] encoded = key.getEncoded();
       
    90                 key = new sun.security.provider.DSAPrivateKey(encoded);
       
    91                 return implTranslatePrivateKey(key);
       
    92             } else {
       
    93                 throw new InvalidKeyException("PrivateKey must be instance "
       
    94                         + "of DSAPrivateKey or have PKCS#8 encoding");
       
    95             }
       
    96         } catch (PKCS11Exception e) {
       
    97             throw new InvalidKeyException("Could not create DSA private key", e);
       
    98         }
       
    99     }
       
   100 
       
   101     // see JCA spec
       
   102     protected PublicKey engineGeneratePublic(KeySpec keySpec)
       
   103             throws InvalidKeySpecException {
       
   104         token.ensureValid();
       
   105         if (keySpec instanceof X509EncodedKeySpec) {
       
   106             try {
       
   107                 byte[] encoded = ((X509EncodedKeySpec)keySpec).getEncoded();
       
   108                 PublicKey key = new sun.security.provider.DSAPublicKey(encoded);
       
   109                 return implTranslatePublicKey(key);
       
   110             } catch (InvalidKeyException e) {
       
   111                 throw new InvalidKeySpecException
       
   112                         ("Could not create DSA public key", e);
       
   113             }
       
   114         }
       
   115         if (keySpec instanceof DSAPublicKeySpec == false) {
       
   116             throw new InvalidKeySpecException("Only DSAPublicKeySpec and "
       
   117                 + "X509EncodedKeySpec supported for DSA public keys");
       
   118         }
       
   119         try {
       
   120             DSAPublicKeySpec ds = (DSAPublicKeySpec)keySpec;
       
   121             return generatePublic(
       
   122                 ds.getY(),
       
   123                 ds.getP(),
       
   124                 ds.getQ(),
       
   125                 ds.getG()
       
   126             );
       
   127         } catch (PKCS11Exception e) {
       
   128             throw new InvalidKeySpecException
       
   129                 ("Could not create DSA public key", e);
       
   130         }
       
   131     }
       
   132 
       
   133     // see JCA spec
       
   134     protected PrivateKey engineGeneratePrivate(KeySpec keySpec)
       
   135             throws InvalidKeySpecException {
       
   136         token.ensureValid();
       
   137         if (keySpec instanceof PKCS8EncodedKeySpec) {
       
   138             try {
       
   139                 byte[] encoded = ((PKCS8EncodedKeySpec)keySpec).getEncoded();
       
   140                 PrivateKey key = new sun.security.provider.DSAPrivateKey(encoded);
       
   141                 return implTranslatePrivateKey(key);
       
   142             } catch (GeneralSecurityException e) {
       
   143                 throw new InvalidKeySpecException
       
   144                         ("Could not create DSA private key", e);
       
   145             }
       
   146         }
       
   147         if (keySpec instanceof DSAPrivateKeySpec == false) {
       
   148             throw new InvalidKeySpecException("Only DSAPrivateKeySpec and "
       
   149                 + "PKCS8EncodedKeySpec supported for DSA private keys");
       
   150         }
       
   151         try {
       
   152             DSAPrivateKeySpec ds = (DSAPrivateKeySpec)keySpec;
       
   153             return generatePrivate(
       
   154                 ds.getX(),
       
   155                 ds.getP(),
       
   156                 ds.getQ(),
       
   157                 ds.getG()
       
   158             );
       
   159         } catch (PKCS11Exception e) {
       
   160             throw new InvalidKeySpecException
       
   161                 ("Could not create DSA private key", e);
       
   162         }
       
   163     }
       
   164 
       
   165     private PublicKey generatePublic(BigInteger y, BigInteger p, BigInteger q,
       
   166             BigInteger g) throws PKCS11Exception {
       
   167         CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
       
   168             new CK_ATTRIBUTE(CKA_CLASS, CKO_PUBLIC_KEY),
       
   169             new CK_ATTRIBUTE(CKA_KEY_TYPE, CKK_DSA),
       
   170             new CK_ATTRIBUTE(CKA_VALUE, y),
       
   171             new CK_ATTRIBUTE(CKA_PRIME, p),
       
   172             new CK_ATTRIBUTE(CKA_SUBPRIME, q),
       
   173             new CK_ATTRIBUTE(CKA_BASE, g),
       
   174         };
       
   175         attributes = token.getAttributes
       
   176                 (O_IMPORT, CKO_PUBLIC_KEY, CKK_DSA, attributes);
       
   177         Session session = null;
       
   178         try {
       
   179             session = token.getObjSession();
       
   180             long keyID = token.p11.C_CreateObject(session.id(), attributes);
       
   181             return P11Key.publicKey
       
   182                 (session, keyID, "DSA", p.bitLength(), attributes);
       
   183         } finally {
       
   184             token.releaseSession(session);
       
   185         }
       
   186     }
       
   187 
       
   188     private PrivateKey generatePrivate(BigInteger x, BigInteger p,
       
   189             BigInteger q, BigInteger g) throws PKCS11Exception {
       
   190         CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
       
   191             new CK_ATTRIBUTE(CKA_CLASS, CKO_PRIVATE_KEY),
       
   192             new CK_ATTRIBUTE(CKA_KEY_TYPE, CKK_DSA),
       
   193             new CK_ATTRIBUTE(CKA_VALUE, x),
       
   194             new CK_ATTRIBUTE(CKA_PRIME, p),
       
   195             new CK_ATTRIBUTE(CKA_SUBPRIME, q),
       
   196             new CK_ATTRIBUTE(CKA_BASE, g),
       
   197         };
       
   198         attributes = token.getAttributes
       
   199                 (O_IMPORT, CKO_PRIVATE_KEY, CKK_DSA, attributes);
       
   200         Session session = null;
       
   201         try {
       
   202             session = token.getObjSession();
       
   203             long keyID = token.p11.C_CreateObject(session.id(), attributes);
       
   204             return P11Key.privateKey
       
   205                 (session, keyID, "DSA", p.bitLength(), attributes);
       
   206         } finally {
       
   207             token.releaseSession(session);
       
   208         }
       
   209     }
       
   210 
       
   211     <T extends KeySpec> T implGetPublicKeySpec(P11Key key, Class<T> keySpec,
       
   212             Session[] session) throws PKCS11Exception, InvalidKeySpecException {
       
   213         if (DSAPublicKeySpec.class.isAssignableFrom(keySpec)) {
       
   214             session[0] = token.getObjSession();
       
   215             CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
       
   216                 new CK_ATTRIBUTE(CKA_VALUE),
       
   217                 new CK_ATTRIBUTE(CKA_PRIME),
       
   218                 new CK_ATTRIBUTE(CKA_SUBPRIME),
       
   219                 new CK_ATTRIBUTE(CKA_BASE),
       
   220             };
       
   221             token.p11.C_GetAttributeValue(session[0].id(), key.keyID, attributes);
       
   222             KeySpec spec = new DSAPublicKeySpec(
       
   223                 attributes[0].getBigInteger(),
       
   224                 attributes[1].getBigInteger(),
       
   225                 attributes[2].getBigInteger(),
       
   226                 attributes[3].getBigInteger()
       
   227             );
       
   228             return keySpec.cast(spec);
       
   229         } else { // X.509 handled in superclass
       
   230             throw new InvalidKeySpecException("Only DSAPublicKeySpec and "
       
   231                 + "X509EncodedKeySpec supported for DSA public keys");
       
   232         }
       
   233     }
       
   234 
       
   235     <T extends KeySpec> T implGetPrivateKeySpec(P11Key key, Class<T> keySpec,
       
   236             Session[] session) throws PKCS11Exception, InvalidKeySpecException {
       
   237         if (DSAPrivateKeySpec.class.isAssignableFrom(keySpec)) {
       
   238             session[0] = token.getObjSession();
       
   239             CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
       
   240                 new CK_ATTRIBUTE(CKA_VALUE),
       
   241                 new CK_ATTRIBUTE(CKA_PRIME),
       
   242                 new CK_ATTRIBUTE(CKA_SUBPRIME),
       
   243                 new CK_ATTRIBUTE(CKA_BASE),
       
   244             };
       
   245             token.p11.C_GetAttributeValue(session[0].id(), key.keyID, attributes);
       
   246             KeySpec spec = new DSAPrivateKeySpec(
       
   247                 attributes[0].getBigInteger(),
       
   248                 attributes[1].getBigInteger(),
       
   249                 attributes[2].getBigInteger(),
       
   250                 attributes[3].getBigInteger()
       
   251             );
       
   252             return keySpec.cast(spec);
       
   253         } else { // PKCS#8 handled in superclass
       
   254             throw new InvalidKeySpecException("Only DSAPrivateKeySpec "
       
   255                 + "and PKCS8EncodedKeySpec supported for DSA private keys");
       
   256         }
       
   257     }
       
   258 
       
   259     KeyFactory implGetSoftwareFactory() throws GeneralSecurityException {
       
   260         return KeyFactory.getInstance("DSA", P11Util.getSunProvider());
       
   261     }
       
   262 
       
   263 }