PKCS10CertificationRequest.java revision e6bf3e8dfa2804891a82075cb469b736321b4827
1package org.bouncycastle.jce; 2 3import java.io.IOException; 4import java.security.AlgorithmParameters; 5import java.security.GeneralSecurityException; 6import java.security.InvalidKeyException; 7import java.security.KeyFactory; 8import java.security.NoSuchAlgorithmException; 9import java.security.NoSuchProviderException; 10import java.security.PrivateKey; 11import java.security.PublicKey; 12import java.security.Signature; 13import java.security.SignatureException; 14import java.security.spec.InvalidKeySpecException; 15import java.security.spec.PSSParameterSpec; 16import java.security.spec.X509EncodedKeySpec; 17import java.util.HashSet; 18import java.util.Hashtable; 19import java.util.Set; 20 21import javax.security.auth.x500.X500Principal; 22 23import org.bouncycastle.asn1.ASN1Encodable; 24import org.bouncycastle.asn1.ASN1Encoding; 25import org.bouncycastle.asn1.ASN1InputStream; 26import org.bouncycastle.asn1.ASN1Integer; 27import org.bouncycastle.asn1.ASN1Primitive; 28import org.bouncycastle.asn1.ASN1Sequence; 29import org.bouncycastle.asn1.ASN1Set; 30import org.bouncycastle.asn1.DERBitString; 31import org.bouncycastle.asn1.DERNull; 32import org.bouncycastle.asn1.DERObjectIdentifier; 33// BEGIN android-removed 34// import org.bouncycastle.asn1.cryptopro.CryptoProObjectIdentifiers; 35// END android-removed 36import org.bouncycastle.asn1.nist.NISTObjectIdentifiers; 37import org.bouncycastle.asn1.oiw.OIWObjectIdentifiers; 38import org.bouncycastle.asn1.pkcs.CertificationRequest; 39import org.bouncycastle.asn1.pkcs.CertificationRequestInfo; 40import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers; 41import org.bouncycastle.asn1.pkcs.RSASSAPSSparams; 42// BEGIN android-removed 43// import org.bouncycastle.asn1.teletrust.TeleTrusTObjectIdentifiers; 44// END android-removed 45import org.bouncycastle.asn1.x509.AlgorithmIdentifier; 46import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo; 47import org.bouncycastle.asn1.x509.X509Name; 48import org.bouncycastle.asn1.x9.X9ObjectIdentifiers; 49import org.bouncycastle.jce.provider.BouncyCastleProvider; 50import org.bouncycastle.util.Strings; 51 52/** 53 * A class for verifying and creating PKCS10 Certification requests. 54 * <pre> 55 * CertificationRequest ::= SEQUENCE { 56 * certificationRequestInfo CertificationRequestInfo, 57 * signatureAlgorithm AlgorithmIdentifier{{ SignatureAlgorithms }}, 58 * signature BIT STRING 59 * } 60 * 61 * CertificationRequestInfo ::= SEQUENCE { 62 * version INTEGER { v1(0) } (v1,...), 63 * subject Name, 64 * subjectPKInfo SubjectPublicKeyInfo{{ PKInfoAlgorithms }}, 65 * attributes [0] Attributes{{ CRIAttributes }} 66 * } 67 * 68 * Attributes { ATTRIBUTE:IOSet } ::= SET OF Attribute{{ IOSet }} 69 * 70 * Attribute { ATTRIBUTE:IOSet } ::= SEQUENCE { 71 * type ATTRIBUTE.&id({IOSet}), 72 * values SET SIZE(1..MAX) OF ATTRIBUTE.&Type({IOSet}{\@type}) 73 * } 74 * </pre> 75 * @deprecated use classes in org.bouncycastle.pkcs. 76 */ 77public class PKCS10CertificationRequest 78 extends CertificationRequest 79{ 80 private static Hashtable algorithms = new Hashtable(); 81 private static Hashtable params = new Hashtable(); 82 private static Hashtable keyAlgorithms = new Hashtable(); 83 private static Hashtable oids = new Hashtable(); 84 private static Set noParams = new HashSet(); 85 86 static 87 { 88 // BEGIN android-removed 89 // Dropping MD2 90 // algorithms.put("MD2WITHRSAENCRYPTION", new DERObjectIdentifier("1.2.840.113549.1.1.2")); 91 // algorithms.put("MD2WITHRSA", new DERObjectIdentifier("1.2.840.113549.1.1.2")); 92 // END android-removed 93 algorithms.put("MD5WITHRSAENCRYPTION", new DERObjectIdentifier("1.2.840.113549.1.1.4")); 94 algorithms.put("MD5WITHRSA", new DERObjectIdentifier("1.2.840.113549.1.1.4")); 95 algorithms.put("RSAWITHMD5", new DERObjectIdentifier("1.2.840.113549.1.1.4")); 96 algorithms.put("SHA1WITHRSAENCRYPTION", new DERObjectIdentifier("1.2.840.113549.1.1.5")); 97 algorithms.put("SHA1WITHRSA", new DERObjectIdentifier("1.2.840.113549.1.1.5")); 98 // BEGIN android-removed 99 // algorithms.put("SHA224WITHRSAENCRYPTION", PKCSObjectIdentifiers.sha224WithRSAEncryption); 100 // algorithms.put("SHA224WITHRSA", PKCSObjectIdentifiers.sha224WithRSAEncryption); 101 // END android-removed 102 algorithms.put("SHA256WITHRSAENCRYPTION", PKCSObjectIdentifiers.sha256WithRSAEncryption); 103 algorithms.put("SHA256WITHRSA", PKCSObjectIdentifiers.sha256WithRSAEncryption); 104 algorithms.put("SHA384WITHRSAENCRYPTION", PKCSObjectIdentifiers.sha384WithRSAEncryption); 105 algorithms.put("SHA384WITHRSA", PKCSObjectIdentifiers.sha384WithRSAEncryption); 106 algorithms.put("SHA512WITHRSAENCRYPTION", PKCSObjectIdentifiers.sha512WithRSAEncryption); 107 algorithms.put("SHA512WITHRSA", PKCSObjectIdentifiers.sha512WithRSAEncryption); 108 algorithms.put("SHA1WITHRSAANDMGF1", PKCSObjectIdentifiers.id_RSASSA_PSS); 109 // BEGIN android-removed 110 // algorithms.put("SHA224WITHRSAANDMGF1", PKCSObjectIdentifiers.id_RSASSA_PSS); 111 // END android-removed 112 algorithms.put("SHA256WITHRSAANDMGF1", PKCSObjectIdentifiers.id_RSASSA_PSS); 113 algorithms.put("SHA384WITHRSAANDMGF1", PKCSObjectIdentifiers.id_RSASSA_PSS); 114 algorithms.put("SHA512WITHRSAANDMGF1", PKCSObjectIdentifiers.id_RSASSA_PSS); 115 algorithms.put("RSAWITHSHA1", new DERObjectIdentifier("1.2.840.113549.1.1.5")); 116 // BEGIN android-removed 117 // algorithms.put("RIPEMD128WITHRSAENCRYPTION", TeleTrusTObjectIdentifiers.rsaSignatureWithripemd128); 118 // algorithms.put("RIPEMD128WITHRSA", TeleTrusTObjectIdentifiers.rsaSignatureWithripemd128); 119 // algorithms.put("RIPEMD160WITHRSAENCRYPTION", TeleTrusTObjectIdentifiers.rsaSignatureWithripemd160); 120 // algorithms.put("RIPEMD160WITHRSA", TeleTrusTObjectIdentifiers.rsaSignatureWithripemd160); 121 // algorithms.put("RIPEMD256WITHRSAENCRYPTION", TeleTrusTObjectIdentifiers.rsaSignatureWithripemd256); 122 // algorithms.put("RIPEMD256WITHRSA", TeleTrusTObjectIdentifiers.rsaSignatureWithripemd256); 123 // END android-removed 124 algorithms.put("SHA1WITHDSA", new DERObjectIdentifier("1.2.840.10040.4.3")); 125 algorithms.put("DSAWITHSHA1", new DERObjectIdentifier("1.2.840.10040.4.3")); 126 // BEGIN android-removed 127 // algorithms.put("SHA224WITHDSA", NISTObjectIdentifiers.dsa_with_sha224); 128 // END android-removed 129 algorithms.put("SHA256WITHDSA", NISTObjectIdentifiers.dsa_with_sha256); 130 algorithms.put("SHA384WITHDSA", NISTObjectIdentifiers.dsa_with_sha384); 131 algorithms.put("SHA512WITHDSA", NISTObjectIdentifiers.dsa_with_sha512); 132 algorithms.put("SHA1WITHECDSA", X9ObjectIdentifiers.ecdsa_with_SHA1); 133 // BEGIN android-removed 134 // algorithms.put("SHA224WITHECDSA", X9ObjectIdentifiers.ecdsa_with_SHA224); 135 // END android-removed 136 algorithms.put("SHA256WITHECDSA", X9ObjectIdentifiers.ecdsa_with_SHA256); 137 algorithms.put("SHA384WITHECDSA", X9ObjectIdentifiers.ecdsa_with_SHA384); 138 algorithms.put("SHA512WITHECDSA", X9ObjectIdentifiers.ecdsa_with_SHA512); 139 algorithms.put("ECDSAWITHSHA1", X9ObjectIdentifiers.ecdsa_with_SHA1); 140 // BEGIN android-removed 141 // algorithms.put("GOST3411WITHGOST3410", CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_94); 142 // algorithms.put("GOST3410WITHGOST3411", CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_94); 143 // algorithms.put("GOST3411WITHECGOST3410", CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_2001); 144 // algorithms.put("GOST3411WITHECGOST3410-2001", CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_2001); 145 // algorithms.put("GOST3411WITHGOST3410-2001", CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_2001); 146 // END android-removed 147 148 // 149 // reverse mappings 150 // 151 oids.put(new DERObjectIdentifier("1.2.840.113549.1.1.5"), "SHA1WITHRSA"); 152 // BEGIN android-removed 153 // oids.put(PKCSObjectIdentifiers.sha224WithRSAEncryption, "SHA224WITHRSA"); 154 // END android-removed 155 oids.put(PKCSObjectIdentifiers.sha256WithRSAEncryption, "SHA256WITHRSA"); 156 oids.put(PKCSObjectIdentifiers.sha384WithRSAEncryption, "SHA384WITHRSA"); 157 oids.put(PKCSObjectIdentifiers.sha512WithRSAEncryption, "SHA512WITHRSA"); 158 // BEGIN android-removed 159 // oids.put(CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_94, "GOST3411WITHGOST3410"); 160 // oids.put(CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_2001, "GOST3411WITHECGOST3410"); 161 // END android-removed 162 163 oids.put(new DERObjectIdentifier("1.2.840.113549.1.1.4"), "MD5WITHRSA"); 164 // BEGIN android-removed 165 // Dropping MD2 166 // oids.put(new DERObjectIdentifier("1.2.840.113549.1.1.2"), "MD2WITHRSA"); 167 // END android-removed 168 oids.put(new DERObjectIdentifier("1.2.840.10040.4.3"), "SHA1WITHDSA"); 169 oids.put(X9ObjectIdentifiers.ecdsa_with_SHA1, "SHA1WITHECDSA"); 170 // BEGIN android-removed 171 // oids.put(X9ObjectIdentifiers.ecdsa_with_SHA224, "SHA224WITHECDSA"); 172 // END android-removed 173 oids.put(X9ObjectIdentifiers.ecdsa_with_SHA256, "SHA256WITHECDSA"); 174 oids.put(X9ObjectIdentifiers.ecdsa_with_SHA384, "SHA384WITHECDSA"); 175 oids.put(X9ObjectIdentifiers.ecdsa_with_SHA512, "SHA512WITHECDSA"); 176 oids.put(OIWObjectIdentifiers.sha1WithRSA, "SHA1WITHRSA"); 177 oids.put(OIWObjectIdentifiers.dsaWithSHA1, "SHA1WITHDSA"); 178 // BEGIN android-removed 179 // oids.put(NISTObjectIdentifiers.dsa_with_sha224, "SHA224WITHDSA"); 180 // END android-removed 181 oids.put(NISTObjectIdentifiers.dsa_with_sha256, "SHA256WITHDSA"); 182 183 // 184 // key types 185 // 186 keyAlgorithms.put(PKCSObjectIdentifiers.rsaEncryption, "RSA"); 187 keyAlgorithms.put(X9ObjectIdentifiers.id_dsa, "DSA"); 188 189 // 190 // According to RFC 3279, the ASN.1 encoding SHALL (id-dsa-with-sha1) or MUST (ecdsa-with-SHA*) omit the parameters field. 191 // The parameters field SHALL be NULL for RSA based signature algorithms. 192 // 193 noParams.add(X9ObjectIdentifiers.ecdsa_with_SHA1); 194 // BEGIN android-removed 195 // noParams.add(X9ObjectIdentifiers.ecdsa_with_SHA224); 196 // END android-removed 197 noParams.add(X9ObjectIdentifiers.ecdsa_with_SHA256); 198 noParams.add(X9ObjectIdentifiers.ecdsa_with_SHA384); 199 noParams.add(X9ObjectIdentifiers.ecdsa_with_SHA512); 200 noParams.add(X9ObjectIdentifiers.id_dsa_with_sha1); 201 // BEGIN android-removed 202 // noParams.add(NISTObjectIdentifiers.dsa_with_sha224); 203 // END android-removed 204 noParams.add(NISTObjectIdentifiers.dsa_with_sha256); 205 206 // 207 // RFC 4491 208 // 209 // BEGIN android-removed 210 // noParams.add(CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_94); 211 // noParams.add(CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_2001); 212 // END android-removed 213 // 214 // explicit params 215 // 216 // BEGIN android-changed 217 AlgorithmIdentifier sha1AlgId = new AlgorithmIdentifier(OIWObjectIdentifiers.idSHA1, DERNull.INSTANCE); 218 // END android-changed 219 params.put("SHA1WITHRSAANDMGF1", creatPSSParams(sha1AlgId, 20)); 220 221 // BEGIN android-removed 222 // // BEGIN android-changed 223 // AlgorithmIdentifier sha224AlgId = new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha224, DERNull.INSTANCE); 224 // // END android-changed 225 // params.put("SHA224WITHRSAANDMGF1", creatPSSParams(sha224AlgId, 28)); 226 // END android-removed 227 228 // BEGIN android-changed 229 AlgorithmIdentifier sha256AlgId = new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha256, DERNull.INSTANCE); 230 // END android-changed 231 params.put("SHA256WITHRSAANDMGF1", creatPSSParams(sha256AlgId, 32)); 232 233 // BEGIN android-changed 234 AlgorithmIdentifier sha384AlgId = new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha384, DERNull.INSTANCE); 235 // END android-changed 236 params.put("SHA384WITHRSAANDMGF1", creatPSSParams(sha384AlgId, 48)); 237 238 // BEGIN android-changed 239 AlgorithmIdentifier sha512AlgId = new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha512, DERNull.INSTANCE); 240 // END android-changed 241 params.put("SHA512WITHRSAANDMGF1", creatPSSParams(sha512AlgId, 64)); 242 } 243 244 private static RSASSAPSSparams creatPSSParams(AlgorithmIdentifier hashAlgId, int saltSize) 245 { 246 return new RSASSAPSSparams( 247 hashAlgId, 248 new AlgorithmIdentifier(PKCSObjectIdentifiers.id_mgf1, hashAlgId), 249 new ASN1Integer(saltSize), 250 new ASN1Integer(1)); 251 } 252 253 private static ASN1Sequence toDERSequence( 254 byte[] bytes) 255 { 256 try 257 { 258 ASN1InputStream dIn = new ASN1InputStream(bytes); 259 260 return (ASN1Sequence)dIn.readObject(); 261 } 262 catch (Exception e) 263 { 264 throw new IllegalArgumentException("badly encoded request"); 265 } 266 } 267 268 /** 269 * construct a PKCS10 certification request from a DER encoded 270 * byte stream. 271 */ 272 public PKCS10CertificationRequest( 273 byte[] bytes) 274 { 275 super(toDERSequence(bytes)); 276 } 277 278 public PKCS10CertificationRequest( 279 ASN1Sequence sequence) 280 { 281 super(sequence); 282 } 283 284 /** 285 * create a PKCS10 certfication request using the BC provider. 286 */ 287 public PKCS10CertificationRequest( 288 String signatureAlgorithm, 289 X509Name subject, 290 PublicKey key, 291 ASN1Set attributes, 292 PrivateKey signingKey) 293 throws NoSuchAlgorithmException, NoSuchProviderException, 294 InvalidKeyException, SignatureException 295 { 296 this(signatureAlgorithm, subject, key, attributes, signingKey, BouncyCastleProvider.PROVIDER_NAME); 297 } 298 299 private static X509Name convertName( 300 X500Principal name) 301 { 302 try 303 { 304 return new X509Principal(name.getEncoded()); 305 } 306 catch (IOException e) 307 { 308 throw new IllegalArgumentException("can't convert name"); 309 } 310 } 311 312 /** 313 * create a PKCS10 certfication request using the BC provider. 314 */ 315 public PKCS10CertificationRequest( 316 String signatureAlgorithm, 317 X500Principal subject, 318 PublicKey key, 319 ASN1Set attributes, 320 PrivateKey signingKey) 321 throws NoSuchAlgorithmException, NoSuchProviderException, 322 InvalidKeyException, SignatureException 323 { 324 this(signatureAlgorithm, convertName(subject), key, attributes, signingKey, BouncyCastleProvider.PROVIDER_NAME); 325 } 326 327 /** 328 * create a PKCS10 certfication request using the named provider. 329 */ 330 public PKCS10CertificationRequest( 331 String signatureAlgorithm, 332 X500Principal subject, 333 PublicKey key, 334 ASN1Set attributes, 335 PrivateKey signingKey, 336 String provider) 337 throws NoSuchAlgorithmException, NoSuchProviderException, 338 InvalidKeyException, SignatureException 339 { 340 this(signatureAlgorithm, convertName(subject), key, attributes, signingKey, provider); 341 } 342 343 /** 344 * create a PKCS10 certfication request using the named provider. 345 */ 346 public PKCS10CertificationRequest( 347 String signatureAlgorithm, 348 X509Name subject, 349 PublicKey key, 350 ASN1Set attributes, 351 PrivateKey signingKey, 352 String provider) 353 throws NoSuchAlgorithmException, NoSuchProviderException, 354 InvalidKeyException, SignatureException 355 { 356 String algorithmName = Strings.toUpperCase(signatureAlgorithm); 357 DERObjectIdentifier sigOID = (DERObjectIdentifier)algorithms.get(algorithmName); 358 359 if (sigOID == null) 360 { 361 try 362 { 363 sigOID = new DERObjectIdentifier(algorithmName); 364 } 365 catch (Exception e) 366 { 367 throw new IllegalArgumentException("Unknown signature type requested"); 368 } 369 } 370 371 if (subject == null) 372 { 373 throw new IllegalArgumentException("subject must not be null"); 374 } 375 376 if (key == null) 377 { 378 throw new IllegalArgumentException("public key must not be null"); 379 } 380 381 if (noParams.contains(sigOID)) 382 { 383 this.sigAlgId = new AlgorithmIdentifier(sigOID); 384 } 385 else if (params.containsKey(algorithmName)) 386 { 387 this.sigAlgId = new AlgorithmIdentifier(sigOID, (ASN1Encodable)params.get(algorithmName)); 388 } 389 else 390 { 391 this.sigAlgId = new AlgorithmIdentifier(sigOID, DERNull.INSTANCE); 392 } 393 394 try 395 { 396 ASN1Sequence seq = (ASN1Sequence)ASN1Primitive.fromByteArray(key.getEncoded()); 397 this.reqInfo = new CertificationRequestInfo(subject, new SubjectPublicKeyInfo(seq), attributes); 398 } 399 catch (IOException e) 400 { 401 throw new IllegalArgumentException("can't encode public key"); 402 } 403 404 Signature sig; 405 if (provider == null) 406 { 407 sig = Signature.getInstance(signatureAlgorithm); 408 } 409 else 410 { 411 sig = Signature.getInstance(signatureAlgorithm, provider); 412 } 413 414 sig.initSign(signingKey); 415 416 try 417 { 418 sig.update(reqInfo.getEncoded(ASN1Encoding.DER)); 419 } 420 catch (Exception e) 421 { 422 throw new IllegalArgumentException("exception encoding TBS cert request - " + e); 423 } 424 425 this.sigBits = new DERBitString(sig.sign()); 426 } 427 428 /** 429 * return the public key associated with the certification request - 430 * the public key is created using the BC provider. 431 */ 432 public PublicKey getPublicKey() 433 throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeyException 434 { 435 return getPublicKey(BouncyCastleProvider.PROVIDER_NAME); 436 } 437 438 public PublicKey getPublicKey( 439 String provider) 440 throws NoSuchAlgorithmException, NoSuchProviderException, 441 InvalidKeyException 442 { 443 SubjectPublicKeyInfo subjectPKInfo = reqInfo.getSubjectPublicKeyInfo(); 444 X509EncodedKeySpec xspec = new X509EncodedKeySpec(new DERBitString(subjectPKInfo).getBytes()); 445 AlgorithmIdentifier keyAlg = subjectPKInfo.getAlgorithmId(); 446 447 try 448 { 449 try 450 { 451 if (provider == null) 452 { 453 return KeyFactory.getInstance(keyAlg.getObjectId().getId()).generatePublic(xspec); 454 } 455 else 456 { 457 return KeyFactory.getInstance(keyAlg.getObjectId().getId(), provider).generatePublic(xspec); 458 } 459 } 460 catch (NoSuchAlgorithmException e) 461 { 462 // 463 // try an alternate 464 // 465 if (keyAlgorithms.get(keyAlg.getObjectId()) != null) 466 { 467 String keyAlgorithm = (String)keyAlgorithms.get(keyAlg.getObjectId()); 468 469 if (provider == null) 470 { 471 return KeyFactory.getInstance(keyAlgorithm).generatePublic(xspec); 472 } 473 else 474 { 475 return KeyFactory.getInstance(keyAlgorithm, provider).generatePublic(xspec); 476 } 477 } 478 479 throw e; 480 } 481 } 482 catch (InvalidKeySpecException e) 483 { 484 throw new InvalidKeyException("error decoding public key"); 485 } 486 } 487 488 /** 489 * verify the request using the BC provider. 490 */ 491 public boolean verify() 492 throws NoSuchAlgorithmException, NoSuchProviderException, 493 InvalidKeyException, SignatureException 494 { 495 return verify(BouncyCastleProvider.PROVIDER_NAME); 496 } 497 498 /** 499 * verify the request using the passed in provider. 500 */ 501 public boolean verify( 502 String provider) 503 throws NoSuchAlgorithmException, NoSuchProviderException, 504 InvalidKeyException, SignatureException 505 { 506 return verify(this.getPublicKey(provider), provider); 507 } 508 509 /** 510 * verify the request using the passed in public key and the provider.. 511 */ 512 public boolean verify( 513 PublicKey pubKey, 514 String provider) 515 throws NoSuchAlgorithmException, NoSuchProviderException, 516 InvalidKeyException, SignatureException 517 { 518 Signature sig; 519 520 try 521 { 522 if (provider == null) 523 { 524 sig = Signature.getInstance(getSignatureName(sigAlgId)); 525 } 526 else 527 { 528 sig = Signature.getInstance(getSignatureName(sigAlgId), provider); 529 } 530 } 531 catch (NoSuchAlgorithmException e) 532 { 533 // 534 // try an alternate 535 // 536 if (oids.get(sigAlgId.getObjectId()) != null) 537 { 538 String signatureAlgorithm = (String)oids.get(sigAlgId.getObjectId()); 539 540 if (provider == null) 541 { 542 sig = Signature.getInstance(signatureAlgorithm); 543 } 544 else 545 { 546 sig = Signature.getInstance(signatureAlgorithm, provider); 547 } 548 } 549 else 550 { 551 throw e; 552 } 553 } 554 555 setSignatureParameters(sig, sigAlgId.getParameters()); 556 557 sig.initVerify(pubKey); 558 559 try 560 { 561 sig.update(reqInfo.getEncoded(ASN1Encoding.DER)); 562 } 563 catch (Exception e) 564 { 565 throw new SignatureException("exception encoding TBS cert request - " + e); 566 } 567 568 return sig.verify(sigBits.getBytes()); 569 } 570 571 /** 572 * return a DER encoded byte array representing this object 573 */ 574 public byte[] getEncoded() 575 { 576 try 577 { 578 return this.getEncoded(ASN1Encoding.DER); 579 } 580 catch (IOException e) 581 { 582 throw new RuntimeException(e.toString()); 583 } 584 } 585 586 private void setSignatureParameters( 587 Signature signature, 588 ASN1Encodable params) 589 throws NoSuchAlgorithmException, SignatureException, InvalidKeyException 590 { 591 if (params != null && !DERNull.INSTANCE.equals(params)) 592 { 593 AlgorithmParameters sigParams = AlgorithmParameters.getInstance(signature.getAlgorithm(), signature.getProvider()); 594 595 try 596 { 597 sigParams.init(params.toASN1Primitive().getEncoded(ASN1Encoding.DER)); 598 } 599 catch (IOException e) 600 { 601 throw new SignatureException("IOException decoding parameters: " + e.getMessage()); 602 } 603 604 if (signature.getAlgorithm().endsWith("MGF1")) 605 { 606 try 607 { 608 signature.setParameter(sigParams.getParameterSpec(PSSParameterSpec.class)); 609 } 610 catch (GeneralSecurityException e) 611 { 612 throw new SignatureException("Exception extracting parameters: " + e.getMessage()); 613 } 614 } 615 } 616 } 617 618 static String getSignatureName( 619 AlgorithmIdentifier sigAlgId) 620 { 621 ASN1Encodable params = sigAlgId.getParameters(); 622 623 if (params != null && !DERNull.INSTANCE.equals(params)) 624 { 625 if (sigAlgId.getObjectId().equals(PKCSObjectIdentifiers.id_RSASSA_PSS)) 626 { 627 RSASSAPSSparams rsaParams = RSASSAPSSparams.getInstance(params); 628 return getDigestAlgName(rsaParams.getHashAlgorithm().getObjectId()) + "withRSAandMGF1"; 629 } 630 } 631 632 return sigAlgId.getObjectId().getId(); 633 } 634 635 private static String getDigestAlgName( 636 DERObjectIdentifier digestAlgOID) 637 { 638 if (PKCSObjectIdentifiers.md5.equals(digestAlgOID)) 639 { 640 return "MD5"; 641 } 642 else if (OIWObjectIdentifiers.idSHA1.equals(digestAlgOID)) 643 { 644 return "SHA1"; 645 } 646 // BEGIN android-removed 647 // else if (NISTObjectIdentifiers.id_sha224.equals(digestAlgOID)) 648 // { 649 // return "SHA224"; 650 // } 651 // END android-removed 652 else if (NISTObjectIdentifiers.id_sha256.equals(digestAlgOID)) 653 { 654 return "SHA256"; 655 } 656 else if (NISTObjectIdentifiers.id_sha384.equals(digestAlgOID)) 657 { 658 return "SHA384"; 659 } 660 else if (NISTObjectIdentifiers.id_sha512.equals(digestAlgOID)) 661 { 662 return "SHA512"; 663 } 664 // BEGIN android-removed 665 // else if (TeleTrusTObjectIdentifiers.ripemd128.equals(digestAlgOID)) 666 // { 667 // return "RIPEMD128"; 668 // } 669 // else if (TeleTrusTObjectIdentifiers.ripemd160.equals(digestAlgOID)) 670 // { 671 // return "RIPEMD160"; 672 // } 673 // else if (TeleTrusTObjectIdentifiers.ripemd256.equals(digestAlgOID)) 674 // { 675 // return "RIPEMD256"; 676 // } 677 // else if (CryptoProObjectIdentifiers.gostR3411.equals(digestAlgOID)) 678 // { 679 // return "GOST3411"; 680 // } 681 // END android-removed 682 else 683 { 684 return digestAlgOID.getId(); 685 } 686 } 687} 688