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| 1 | /* | ||
| 2 | * Copyright (c) 2003, 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.spec.*; | ||
| 32 | |||
| 33 | import javax.crypto.interfaces.*; | ||
| 34 | import javax.crypto.spec.*; | ||
| 35 | |||
| 36 | import static sun.security.pkcs11.TemplateManager.*; | ||
| 37 | import sun.security.pkcs11.wrapper.*; | ||
| 38 | import static sun.security.pkcs11.wrapper.PKCS11Constants.*; | ||
| 39 | |||
| 40 | /** | ||
| 41 | * DH KeyFactory implemenation. | ||
| 42 | * | ||
| 43 | * @author Andreas Sterbenz | ||
| 44 | * @since 1.5 | ||
| 45 | */ | ||
| 46 | final class P11DHKeyFactory extends P11KeyFactory { | ||
| 47 | |||
| 48 | P11DHKeyFactory(Token token, String algorithm) { | ||
| 49 | super(token, algorithm); | ||
| 50 | } | ||
| 51 | |||
| 52 | PublicKey implTranslatePublicKey(PublicKey key) throws InvalidKeyException { | ||
| 53 | try { | ||
| 54 | if (key instanceof DHPublicKey) { | ||
| 55 | DHPublicKey dhKey = (DHPublicKey)key; | ||
| 56 | DHParameterSpec params = dhKey.getParams(); | ||
| 57 | return generatePublic( | ||
| 58 | dhKey.getY(), | ||
| 59 | params.getP(), | ||
| 60 | params.getG() | ||
| 61 | ); | ||
| 62 | } else if ("X.509".equals(key.getFormat())) { | ||
| 63 | // let SunJCE provider parse for us, then recurse | ||
| 64 | try { | ||
| 65 | KeyFactory factory = implGetSoftwareFactory(); | ||
| 66 | key = (PublicKey)factory.translateKey(key); | ||
| 67 | return implTranslatePublicKey(key); | ||
| 68 | } catch (GeneralSecurityException e) { | ||
| 69 | throw new InvalidKeyException("Could not translate key", e); | ||
| 70 | } | ||
| 71 | } else { | ||
| 72 | throw new InvalidKeyException("PublicKey must be instance " | ||
| 73 | + "of DHPublicKey or have X.509 encoding"); | ||
| 74 | } | ||
| 75 | } catch (PKCS11Exception e) { | ||
| 76 | throw new InvalidKeyException("Could not create DH public key", e); | ||
| 77 | } | ||
| 78 | } | ||
| 79 | |||
| 80 | PrivateKey implTranslatePrivateKey(PrivateKey key) | ||
| 81 | throws InvalidKeyException { | ||
| 82 | try { | ||
| 83 | if (key instanceof DHPrivateKey) { | ||
| 84 | DHPrivateKey dhKey = (DHPrivateKey)key; | ||
| 85 | DHParameterSpec params = dhKey.getParams(); | ||
| 86 | return generatePrivate( | ||
| 87 | dhKey.getX(), | ||
| 88 | params.getP(), | ||
| 89 | params.getG() | ||
| 90 | ); | ||
| 91 | } else if ("PKCS#8".equals(key.getFormat())) { | ||
| 92 | // let SunJCE provider parse for us, then recurse | ||
| 93 | try { | ||
| 94 | KeyFactory factory = implGetSoftwareFactory(); | ||
| 95 | key = (PrivateKey)factory.translateKey(key); | ||
| 96 | return implTranslatePrivateKey(key); | ||
| 97 | } catch (GeneralSecurityException e) { | ||
| 98 | throw new InvalidKeyException("Could not translate key", e); | ||
| 99 | } | ||
| 100 | } else { | ||
| 101 | throw new InvalidKeyException("PrivateKey must be instance " | ||
| 102 | + "of DHPrivateKey or have PKCS#8 encoding"); | ||
| 103 | } | ||
| 104 | } catch (PKCS11Exception e) { | ||
| 105 | throw new InvalidKeyException("Could not create DH private key", e); | ||
| 106 | } | ||
| 107 | } | ||
| 108 | |||
| 109 | // see JCA spec | ||
| 110 | protected PublicKey engineGeneratePublic(KeySpec keySpec) | ||
| 111 | throws InvalidKeySpecException { | ||
| 112 | token.ensureValid(); | ||
| 113 | if (keySpec instanceof X509EncodedKeySpec) { | ||
| 114 | try { | ||
| 115 | KeyFactory factory = implGetSoftwareFactory(); | ||
| 116 | PublicKey key = factory.generatePublic(keySpec); | ||
| 117 | return implTranslatePublicKey(key); | ||
| 118 | } catch (GeneralSecurityException e) { | ||
| 119 | throw new InvalidKeySpecException | ||
| 120 | ("Could not create DH public key", e); | ||
| 121 | } | ||
| 122 | } | ||
| 123 | if (keySpec instanceof DHPublicKeySpec == false) { | ||
| 124 | throw new InvalidKeySpecException("Only DHPublicKeySpec and " | ||
| 125 | + "X509EncodedKeySpec supported for DH public keys"); | ||
| 126 | } | ||
| 127 | try { | ||
| 128 | DHPublicKeySpec ds = (DHPublicKeySpec)keySpec; | ||
| 129 | return generatePublic( | ||
| 130 | ds.getY(), | ||
| 131 | ds.getP(), | ||
| 132 | ds.getG() | ||
| 133 | ); | ||
| 134 | } catch (PKCS11Exception e) { | ||
| 135 | throw new InvalidKeySpecException | ||
| 136 | ("Could not create DH public key", e); | ||
| 137 | } | ||
| 138 | } | ||
| 139 | |||
| 140 | // see JCA spec | ||
| 141 | protected PrivateKey engineGeneratePrivate(KeySpec keySpec) | ||
| 142 | throws InvalidKeySpecException { | ||
| 143 | token.ensureValid(); | ||
| 144 | if (keySpec instanceof PKCS8EncodedKeySpec) { | ||
| 145 | try { | ||
| 146 | KeyFactory factory = implGetSoftwareFactory(); | ||
| 147 | PrivateKey key = factory.generatePrivate(keySpec); | ||
| 148 | return implTranslatePrivateKey(key); | ||
| 149 | } catch (GeneralSecurityException e) { | ||
| 150 | throw new InvalidKeySpecException | ||
| 151 | ("Could not create DH private key", e); | ||
| 152 | } | ||
| 153 | } | ||
| 154 | if (keySpec instanceof DHPrivateKeySpec == false) { | ||
| 155 | throw new InvalidKeySpecException("Only DHPrivateKeySpec and " | ||
| 156 | + "PKCS8EncodedKeySpec supported for DH private keys"); | ||
| 157 | } | ||
| 158 | try { | ||
| 159 | DHPrivateKeySpec ds = (DHPrivateKeySpec)keySpec; | ||
| 160 | return generatePrivate( | ||
| 161 | ds.getX(), | ||
| 162 | ds.getP(), | ||
| 163 | ds.getG() | ||
| 164 | ); | ||
| 165 | } catch (PKCS11Exception e) { | ||
| 166 | throw new InvalidKeySpecException | ||
| 167 | ("Could not create DH private key", e); | ||
| 168 | } | ||
| 169 | } | ||
| 170 | |||
| 171 | private PublicKey generatePublic(BigInteger y, BigInteger p, BigInteger g) | ||
| 172 | throws PKCS11Exception { | ||
| 173 | CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] { | ||
| 174 | new CK_ATTRIBUTE(CKA_CLASS, CKO_PUBLIC_KEY), | ||
| 175 | new CK_ATTRIBUTE(CKA_KEY_TYPE, CKK_DH), | ||
| 176 | new CK_ATTRIBUTE(CKA_VALUE, y), | ||
| 177 | new CK_ATTRIBUTE(CKA_PRIME, p), | ||
| 178 | new CK_ATTRIBUTE(CKA_BASE, g), | ||
| 179 | }; | ||
| 180 | attributes = token.getAttributes | ||
| 181 | (O_IMPORT, CKO_PUBLIC_KEY, CKK_DH, attributes); | ||
| 182 | Session session = null; | ||
| 183 | try { | ||
| 184 | session = token.getObjSession(); | ||
| 185 | long keyID = token.p11.C_CreateObject(session.id(), attributes); | ||
| 186 | return P11Key.publicKey | ||
| 187 | (session, keyID, "DH", p.bitLength(), attributes); | ||
| 188 | } finally { | ||
| 189 | token.releaseSession(session); | ||
| 190 | } | ||
| 191 | } | ||
| 192 | |||
| 193 | private PrivateKey generatePrivate(BigInteger x, BigInteger p, | ||
| 194 | BigInteger g) throws PKCS11Exception { | ||
| 195 | CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] { | ||
| 196 | new CK_ATTRIBUTE(CKA_CLASS, CKO_PRIVATE_KEY), | ||
| 197 | new CK_ATTRIBUTE(CKA_KEY_TYPE, CKK_DH), | ||
| 198 | new CK_ATTRIBUTE(CKA_VALUE, x), | ||
| 199 | new CK_ATTRIBUTE(CKA_PRIME, p), | ||
| 200 | new CK_ATTRIBUTE(CKA_BASE, g), | ||
| 201 | }; | ||
| 202 | attributes = token.getAttributes | ||
| 203 | (O_IMPORT, CKO_PRIVATE_KEY, CKK_DH, attributes); | ||
| 204 | Session session = null; | ||
| 205 | try { | ||
| 206 | session = token.getObjSession(); | ||
| 207 | long keyID = token.p11.C_CreateObject(session.id(), attributes); | ||
| 208 | return P11Key.privateKey | ||
| 209 | (session, keyID, "DH", p.bitLength(), attributes); | ||
| 210 | } finally { | ||
| 211 | token.releaseSession(session); | ||
| 212 | } | ||
| 213 | } | ||
| 214 | |||
| 215 | KeySpec implGetPublicKeySpec(P11Key key, Class keySpec, Session[] session) | ||
| 216 | throws PKCS11Exception, InvalidKeySpecException { | ||
| 217 | if (DHPublicKeySpec.class.isAssignableFrom(keySpec)) { | ||
| 218 | session[0] = token.getObjSession(); | ||
| 219 | CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] { | ||
| 220 | new CK_ATTRIBUTE(CKA_VALUE), | ||
| 221 | new CK_ATTRIBUTE(CKA_PRIME), | ||
| 222 | new CK_ATTRIBUTE(CKA_BASE), | ||
| 223 | }; | ||
| 224 | token.p11.C_GetAttributeValue(session[0].id(), key.keyID, attributes); | ||
| 225 | KeySpec spec = new DHPublicKeySpec( | ||
| 226 | attributes[0].getBigInteger(), | ||
| 227 | attributes[1].getBigInteger(), | ||
| 228 | attributes[2].getBigInteger() | ||
| 229 | ); | ||
| 230 | return spec; | ||
| 231 | } else { // X.509 handled in superclass | ||
| 232 | throw new InvalidKeySpecException("Only DHPublicKeySpec and " | ||
| 233 | + "X509EncodedKeySpec supported for DH public keys"); | ||
| 234 | } | ||
| 235 | } | ||
| 236 | |||
| 237 | KeySpec implGetPrivateKeySpec(P11Key key, Class keySpec, Session[] session) | ||
| 238 | throws PKCS11Exception, InvalidKeySpecException { | ||
| 239 | if (DHPrivateKeySpec.class.isAssignableFrom(keySpec)) { | ||
| 240 | session[0] = token.getObjSession(); | ||
| 241 | CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] { | ||
| 242 | new CK_ATTRIBUTE(CKA_VALUE), | ||
| 243 | new CK_ATTRIBUTE(CKA_PRIME), | ||
| 244 | new CK_ATTRIBUTE(CKA_BASE), | ||
| 245 | }; | ||
| 246 | token.p11.C_GetAttributeValue(session[0].id(), key.keyID, attributes); | ||
| 247 | KeySpec spec = new DHPrivateKeySpec( | ||
| 248 | attributes[0].getBigInteger(), | ||
| 249 | attributes[1].getBigInteger(), | ||
| 250 | attributes[2].getBigInteger() | ||
| 251 | ); | ||
| 252 | return spec; | ||
| 253 | } else { // PKCS#8 handled in superclass | ||
| 254 | throw new InvalidKeySpecException("Only DHPrivateKeySpec " | ||
| 255 | + "and PKCS8EncodedKeySpec supported for DH private keys"); | ||
| 256 | } | ||
| 257 | } | ||
| 258 | |||
| 259 | KeyFactory implGetSoftwareFactory() throws GeneralSecurityException { | ||
| 260 | return KeyFactory.getInstance("DH", P11Util.getSunJceProvider()); | ||
| 261 | } | ||
| 262 | |||
| 263 | } | ||