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