J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2006 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.security.provider.certpath; |
| 27 | |
| 28 | import java.io.*; |
| 29 | import java.math.BigInteger; |
| 30 | import java.security.*; |
| 31 | import java.security.cert.Certificate; |
| 32 | import java.security.cert.CertificateFactory; |
| 33 | import java.security.cert.CertPathValidatorException; |
| 34 | import java.security.cert.CRLReason; |
| 35 | import java.security.cert.X509Certificate; |
| 36 | import java.security.cert.PKIXParameters; |
| 37 | import javax.security.auth.x500.X500Principal; |
| 38 | import java.util.Date; |
| 39 | import java.util.HashMap; |
| 40 | import java.util.List; |
| 41 | import java.util.Map; |
| 42 | import java.util.Set; |
| 43 | import java.util.Iterator; |
| 44 | import sun.misc.HexDumpEncoder; |
| 45 | import sun.security.x509.*; |
| 46 | import sun.security.util.*; |
| 47 | |
| 48 | /** |
| 49 | * This class is used to process an OCSP response. |
| 50 | * The OCSP Response is defined |
| 51 | * in RFC 2560 and the ASN.1 encoding is as follows: |
| 52 | * <pre> |
| 53 | * |
| 54 | * OCSPResponse ::= SEQUENCE { |
| 55 | * responseStatus OCSPResponseStatus, |
| 56 | * responseBytes [0] EXPLICIT ResponseBytes OPTIONAL } |
| 57 | * |
| 58 | * OCSPResponseStatus ::= ENUMERATED { |
| 59 | * successful (0), --Response has valid confirmations |
| 60 | * malformedRequest (1), --Illegal confirmation request |
| 61 | * internalError (2), --Internal error in issuer |
| 62 | * tryLater (3), --Try again later |
| 63 | * --(4) is not used |
| 64 | * sigRequired (5), --Must sign the request |
| 65 | * unauthorized (6) --Request unauthorized |
| 66 | * } |
| 67 | * |
| 68 | * ResponseBytes ::= SEQUENCE { |
| 69 | * responseType OBJECT IDENTIFIER, |
| 70 | * response OCTET STRING } |
| 71 | * |
| 72 | * BasicOCSPResponse ::= SEQUENCE { |
| 73 | * tbsResponseData ResponseData, |
| 74 | * signatureAlgorithm AlgorithmIdentifier, |
| 75 | * signature BIT STRING, |
| 76 | * certs [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL } |
| 77 | * |
| 78 | * The value for signature SHALL be computed on the hash of the DER |
| 79 | * encoding ResponseData. |
| 80 | * |
| 81 | * ResponseData ::= SEQUENCE { |
| 82 | * version [0] EXPLICIT Version DEFAULT v1, |
| 83 | * responderID ResponderID, |
| 84 | * producedAt GeneralizedTime, |
| 85 | * responses SEQUENCE OF SingleResponse, |
| 86 | * responseExtensions [1] EXPLICIT Extensions OPTIONAL } |
| 87 | * |
| 88 | * ResponderID ::= CHOICE { |
| 89 | * byName [1] Name, |
| 90 | * byKey [2] KeyHash } |
| 91 | * |
| 92 | * KeyHash ::= OCTET STRING -- SHA-1 hash of responder's public key |
| 93 | * (excluding the tag and length fields) |
| 94 | * |
| 95 | * SingleResponse ::= SEQUENCE { |
| 96 | * certID CertID, |
| 97 | * certStatus CertStatus, |
| 98 | * thisUpdate GeneralizedTime, |
| 99 | * nextUpdate [0] EXPLICIT GeneralizedTime OPTIONAL, |
| 100 | * singleExtensions [1] EXPLICIT Extensions OPTIONAL } |
| 101 | * |
| 102 | * CertStatus ::= CHOICE { |
| 103 | * good [0] IMPLICIT NULL, |
| 104 | * revoked [1] IMPLICIT RevokedInfo, |
| 105 | * unknown [2] IMPLICIT UnknownInfo } |
| 106 | * |
| 107 | * RevokedInfo ::= SEQUENCE { |
| 108 | * revocationTime GeneralizedTime, |
| 109 | * revocationReason [0] EXPLICIT CRLReason OPTIONAL } |
| 110 | * |
| 111 | * UnknownInfo ::= NULL -- this can be replaced with an enumeration |
| 112 | * |
| 113 | * </pre> |
| 114 | * |
| 115 | * @author Ram Marti |
| 116 | */ |
| 117 | |
| 118 | class OCSPResponse { |
| 119 | |
| 120 | // Certificate status CHOICE |
| 121 | public static final int CERT_STATUS_GOOD = 0; |
| 122 | public static final int CERT_STATUS_REVOKED = 1; |
| 123 | public static final int CERT_STATUS_UNKNOWN = 2; |
| 124 | |
| 125 | private static final Debug DEBUG = Debug.getInstance("certpath"); |
| 126 | private static final boolean dump = false; |
| 127 | private static final ObjectIdentifier OCSP_BASIC_RESPONSE_OID; |
| 128 | private static final ObjectIdentifier OCSP_NONCE_EXTENSION_OID; |
| 129 | static { |
| 130 | ObjectIdentifier tmp1 = null; |
| 131 | ObjectIdentifier tmp2 = null; |
| 132 | try { |
| 133 | tmp1 = new ObjectIdentifier("1.3.6.1.5.5.7.48.1.1"); |
| 134 | tmp2 = new ObjectIdentifier("1.3.6.1.5.5.7.48.1.2"); |
| 135 | } catch (Exception e) { |
| 136 | // should not happen; log and exit |
| 137 | } |
| 138 | OCSP_BASIC_RESPONSE_OID = tmp1; |
| 139 | OCSP_NONCE_EXTENSION_OID = tmp2; |
| 140 | } |
| 141 | |
| 142 | // OCSP response status code |
| 143 | private static final int OCSP_RESPONSE_OK = 0; |
| 144 | |
| 145 | // ResponderID CHOICE tags |
| 146 | private static final int NAME_TAG = 1; |
| 147 | private static final int KEY_TAG = 2; |
| 148 | |
| 149 | // Object identifier for the OCSPSigning key purpose |
| 150 | private static final String KP_OCSP_SIGNING_OID = "1.3.6.1.5.5.7.3.9"; |
| 151 | |
| 152 | private SingleResponse singleResponse; |
| 153 | |
| 154 | // an array of all of the CRLReasons (used in SingleResponse) |
| 155 | private static CRLReason[] values = CRLReason.values(); |
| 156 | |
| 157 | /* |
| 158 | * Create an OCSP response from its ASN.1 DER encoding. |
| 159 | */ |
| 160 | // used by OCSPChecker |
| 161 | OCSPResponse(byte[] bytes, PKIXParameters params, |
| 162 | X509Certificate responderCert) |
| 163 | throws IOException, CertPathValidatorException { |
| 164 | |
| 165 | try { |
| 166 | int responseStatus; |
| 167 | ObjectIdentifier responseType; |
| 168 | int version; |
| 169 | CertificateIssuerName responderName = null; |
| 170 | Date producedAtDate; |
| 171 | AlgorithmId sigAlgId; |
| 172 | byte[] ocspNonce; |
| 173 | |
| 174 | // OCSPResponse |
| 175 | if (dump) { |
| 176 | HexDumpEncoder hexEnc = new HexDumpEncoder(); |
| 177 | System.out.println("OCSPResponse bytes are..."); |
| 178 | System.out.println(hexEnc.encode(bytes)); |
| 179 | } |
| 180 | DerValue der = new DerValue(bytes); |
| 181 | if (der.tag != DerValue.tag_Sequence) { |
| 182 | throw new IOException("Bad encoding in OCSP response: " + |
| 183 | "expected ASN.1 SEQUENCE tag."); |
| 184 | } |
| 185 | DerInputStream derIn = der.getData(); |
| 186 | |
| 187 | // responseStatus |
| 188 | responseStatus = derIn.getEnumerated(); |
| 189 | if (DEBUG != null) { |
| 190 | DEBUG.println("OCSP response: " + |
| 191 | responseToText(responseStatus)); |
| 192 | } |
| 193 | if (responseStatus != OCSP_RESPONSE_OK) { |
| 194 | throw new CertPathValidatorException( |
| 195 | "OCSP Response Failure: " + |
| 196 | responseToText(responseStatus)); |
| 197 | } |
| 198 | |
| 199 | // responseBytes |
| 200 | der = derIn.getDerValue(); |
| 201 | if (! der.isContextSpecific((byte)0)) { |
| 202 | throw new IOException("Bad encoding in responseBytes element " + |
| 203 | "of OCSP response: expected ASN.1 context specific tag 0."); |
| 204 | }; |
| 205 | DerValue tmp = der.data.getDerValue(); |
| 206 | if (tmp.tag != DerValue.tag_Sequence) { |
| 207 | throw new IOException("Bad encoding in responseBytes element " + |
| 208 | "of OCSP response: expected ASN.1 SEQUENCE tag."); |
| 209 | } |
| 210 | |
| 211 | // responseType |
| 212 | derIn = tmp.data; |
| 213 | responseType = derIn.getOID(); |
| 214 | if (responseType.equals(OCSP_BASIC_RESPONSE_OID)) { |
| 215 | if (DEBUG != null) { |
| 216 | DEBUG.println("OCSP response type: basic"); |
| 217 | } |
| 218 | } else { |
| 219 | if (DEBUG != null) { |
| 220 | DEBUG.println("OCSP response type: " + responseType); |
| 221 | } |
| 222 | throw new IOException("Unsupported OCSP response type: " + |
| 223 | responseType); |
| 224 | } |
| 225 | |
| 226 | // BasicOCSPResponse |
| 227 | DerInputStream basicOCSPResponse = |
| 228 | new DerInputStream(derIn.getOctetString()); |
| 229 | |
| 230 | DerValue[] seqTmp = basicOCSPResponse.getSequence(2); |
| 231 | DerValue responseData = seqTmp[0]; |
| 232 | |
| 233 | // Need the DER encoded ResponseData to verify the signature later |
| 234 | byte[] responseDataDer = seqTmp[0].toByteArray(); |
| 235 | |
| 236 | // tbsResponseData |
| 237 | if (responseData.tag != DerValue.tag_Sequence) { |
| 238 | throw new IOException("Bad encoding in tbsResponseData " + |
| 239 | " element of OCSP response: expected ASN.1 SEQUENCE tag."); |
| 240 | } |
| 241 | DerInputStream seqDerIn = responseData.data; |
| 242 | DerValue seq = seqDerIn.getDerValue(); |
| 243 | |
| 244 | // version |
| 245 | if (seq.isContextSpecific((byte)0)) { |
| 246 | // seq[0] is version |
| 247 | if (seq.isConstructed() && seq.isContextSpecific()) { |
| 248 | //System.out.println ("version is available"); |
| 249 | seq = seq.data.getDerValue(); |
| 250 | version = seq.getInteger(); |
| 251 | if (seq.data.available() != 0) { |
| 252 | throw new IOException("Bad encoding in version " + |
| 253 | " element of OCSP response: bad format"); |
| 254 | } |
| 255 | seq = seqDerIn.getDerValue(); |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | // responderID |
| 260 | short tag = (byte)(seq.tag & 0x1f); |
| 261 | if (tag == NAME_TAG) { |
| 262 | responderName = new CertificateIssuerName(seq.getData()); |
| 263 | if (DEBUG != null) { |
| 264 | DEBUG.println("OCSP Responder name: " + responderName); |
| 265 | } |
| 266 | } else if (tag == KEY_TAG) { |
| 267 | // Ignore, for now |
| 268 | } else { |
| 269 | throw new IOException("Bad encoding in responderID element " + |
| 270 | "of OCSP response: expected ASN.1 context specific tag 0 " + |
| 271 | "or 1"); |
| 272 | } |
| 273 | |
| 274 | // producedAt |
| 275 | seq = seqDerIn.getDerValue(); |
| 276 | producedAtDate = seq.getGeneralizedTime(); |
| 277 | |
| 278 | // responses |
| 279 | DerValue[] singleResponseDer = seqDerIn.getSequence(1); |
| 280 | // Examine only the first response |
| 281 | singleResponse = new SingleResponse(singleResponseDer[0]); |
| 282 | |
| 283 | // responseExtensions |
| 284 | if (seqDerIn.available() > 0) { |
| 285 | seq = seqDerIn.getDerValue(); |
| 286 | if (seq.isContextSpecific((byte)1)) { |
| 287 | DerValue[] responseExtDer = seq.data.getSequence(3); |
| 288 | Extension[] responseExtension = |
| 289 | new Extension[responseExtDer.length]; |
| 290 | for (int i = 0; i < responseExtDer.length; i++) { |
| 291 | responseExtension[i] = new Extension(responseExtDer[i]); |
| 292 | if (DEBUG != null) { |
| 293 | DEBUG.println("OCSP extension: " + |
| 294 | responseExtension[i]); |
| 295 | } |
| 296 | if ((responseExtension[i].getExtensionId()).equals( |
| 297 | OCSP_NONCE_EXTENSION_OID)) { |
| 298 | ocspNonce = |
| 299 | responseExtension[i].getExtensionValue(); |
| 300 | |
| 301 | } else if (responseExtension[i].isCritical()) { |
| 302 | throw new IOException( |
| 303 | "Unsupported OCSP critical extension: " + |
| 304 | responseExtension[i].getExtensionId()); |
| 305 | } |
| 306 | } |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | // signatureAlgorithmId |
| 311 | sigAlgId = AlgorithmId.parse(seqTmp[1]); |
| 312 | |
| 313 | // signature |
| 314 | byte[] signature = seqTmp[2].getBitString(); |
| 315 | X509CertImpl[] x509Certs = null; |
| 316 | |
| 317 | // if seq[3] is available , then it is a sequence of certificates |
| 318 | if (seqTmp.length > 3) { |
| 319 | // certs are available |
| 320 | DerValue seqCert = seqTmp[3]; |
| 321 | if (! seqCert.isContextSpecific((byte)0)) { |
| 322 | throw new IOException("Bad encoding in certs element " + |
| 323 | "of OCSP response: expected ASN.1 context specific tag 0."); |
| 324 | } |
| 325 | DerValue[] certs = (seqCert.getData()).getSequence(3); |
| 326 | x509Certs = new X509CertImpl[certs.length]; |
| 327 | for (int i = 0; i < certs.length; i++) { |
| 328 | x509Certs[i] = new X509CertImpl(certs[i].toByteArray()); |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | // Check whether the cert returned by the responder is trusted |
| 333 | if (x509Certs != null && x509Certs[0] != null) { |
| 334 | X509Certificate cert = x509Certs[0]; |
| 335 | |
| 336 | // First check if the cert matches the responder cert which |
| 337 | // was set locally. |
| 338 | if (cert.equals(responderCert)) { |
| 339 | // cert is trusted, now verify the signed response |
| 340 | |
| 341 | // Next check if the cert was issued by the responder cert |
| 342 | // which was set locally. |
| 343 | } else if (cert.getIssuerDN().equals( |
| 344 | responderCert.getSubjectDN())) { |
| 345 | |
| 346 | // Check for the OCSPSigning key purpose |
| 347 | List<String> keyPurposes = cert.getExtendedKeyUsage(); |
| 348 | if (keyPurposes == null || |
| 349 | !keyPurposes.contains(KP_OCSP_SIGNING_OID)) { |
| 350 | if (DEBUG != null) { |
| 351 | DEBUG.println("Responder's certificate is not " + |
| 352 | "valid for signing OCSP responses."); |
| 353 | } |
| 354 | throw new CertPathValidatorException( |
| 355 | "Responder's certificate not valid for signing " + |
| 356 | "OCSP responses"); |
| 357 | } |
| 358 | |
| 359 | // verify the signature |
| 360 | try { |
| 361 | cert.verify(responderCert.getPublicKey()); |
| 362 | responderCert = cert; |
| 363 | // cert is trusted, now verify the signed response |
| 364 | |
| 365 | } catch (GeneralSecurityException e) { |
| 366 | responderCert = null; |
| 367 | } |
| 368 | } |
| 369 | } |
| 370 | |
| 371 | // Confirm that the signed response was generated using the public |
| 372 | // key from the trusted responder cert |
| 373 | if (responderCert != null) { |
| 374 | |
| 375 | if (! verifyResponse(responseDataDer, responderCert, |
| 376 | sigAlgId, signature, params)) { |
| 377 | if (DEBUG != null) { |
| 378 | DEBUG.println("Error verifying OCSP Responder's " + |
| 379 | "signature"); |
| 380 | } |
| 381 | throw new CertPathValidatorException( |
| 382 | "Error verifying OCSP Responder's signature"); |
| 383 | } |
| 384 | } else { |
| 385 | // Need responder's cert in order to verify the signature |
| 386 | if (DEBUG != null) { |
| 387 | DEBUG.println("Unable to verify OCSP Responder's " + |
| 388 | "signature"); |
| 389 | } |
| 390 | throw new CertPathValidatorException( |
| 391 | "Unable to verify OCSP Responder's signature"); |
| 392 | } |
| 393 | } catch (CertPathValidatorException cpve) { |
| 394 | throw cpve; |
| 395 | } catch (Exception e) { |
| 396 | throw new CertPathValidatorException(e); |
| 397 | } |
| 398 | } |
| 399 | |
| 400 | /* |
| 401 | * Verify the signature of the OCSP response. |
| 402 | * The responder's cert is implicitly trusted. |
| 403 | */ |
| 404 | private boolean verifyResponse(byte[] responseData, X509Certificate cert, |
| 405 | AlgorithmId sigAlgId, byte[] signBytes, PKIXParameters params) |
| 406 | throws SignatureException { |
| 407 | |
| 408 | try { |
| 409 | |
| 410 | Signature respSignature = Signature.getInstance(sigAlgId.getName()); |
| 411 | respSignature.initVerify(cert); |
| 412 | respSignature.update(responseData); |
| 413 | |
| 414 | if (respSignature.verify(signBytes)) { |
| 415 | if (DEBUG != null) { |
| 416 | DEBUG.println("Verified signature of OCSP Responder"); |
| 417 | } |
| 418 | return true; |
| 419 | |
| 420 | } else { |
| 421 | if (DEBUG != null) { |
| 422 | DEBUG.println( |
| 423 | "Error verifying signature of OCSP Responder"); |
| 424 | } |
| 425 | return false; |
| 426 | } |
| 427 | } catch (InvalidKeyException ike) { |
| 428 | throw new SignatureException(ike); |
| 429 | |
| 430 | } catch (NoSuchAlgorithmException nsae) { |
| 431 | throw new SignatureException(nsae); |
| 432 | } |
| 433 | } |
| 434 | |
| 435 | /* |
| 436 | * Return the revocation status code for a given certificate. |
| 437 | */ |
| 438 | // used by OCSPChecker |
| 439 | int getCertStatus(SerialNumber sn) { |
| 440 | // ignore serial number for now; if we support multiple |
| 441 | // requests/responses then it will be used |
| 442 | return singleResponse.getStatus(); |
| 443 | } |
| 444 | |
| 445 | // used by OCSPChecker |
| 446 | CertId getCertId() { |
| 447 | return singleResponse.getCertId(); |
| 448 | } |
| 449 | |
| 450 | Date getRevocationTime() { |
| 451 | return singleResponse.getRevocationTime(); |
| 452 | } |
| 453 | |
| 454 | CRLReason getRevocationReason() { |
| 455 | return singleResponse.getRevocationReason(); |
| 456 | } |
| 457 | |
| 458 | Map<String, java.security.cert.Extension> getSingleExtensions() { |
| 459 | return singleResponse.getSingleExtensions(); |
| 460 | } |
| 461 | |
| 462 | /* |
| 463 | * Map an OCSP response status code to a string. |
| 464 | */ |
| 465 | static private String responseToText(int status) { |
| 466 | switch (status) { |
| 467 | case 0: |
| 468 | return "Successful"; |
| 469 | case 1: |
| 470 | return "Malformed request"; |
| 471 | case 2: |
| 472 | return "Internal error"; |
| 473 | case 3: |
| 474 | return "Try again later"; |
| 475 | case 4: |
| 476 | return "Unused status code"; |
| 477 | case 5: |
| 478 | return "Request must be signed"; |
| 479 | case 6: |
| 480 | return "Request is unauthorized"; |
| 481 | default: |
| 482 | return ("Unknown status code: " + status); |
| 483 | } |
| 484 | } |
| 485 | |
| 486 | /* |
| 487 | * Map a certificate's revocation status code to a string. |
| 488 | */ |
| 489 | // used by OCSPChecker |
| 490 | static String certStatusToText(int certStatus) { |
| 491 | switch (certStatus) { |
| 492 | case 0: |
| 493 | return "Good"; |
| 494 | case 1: |
| 495 | return "Revoked"; |
| 496 | case 2: |
| 497 | return "Unknown"; |
| 498 | default: |
| 499 | return ("Unknown certificate status code: " + certStatus); |
| 500 | } |
| 501 | } |
| 502 | |
| 503 | /* |
| 504 | * A class representing a single OCSP response. |
| 505 | */ |
| 506 | private class SingleResponse { |
| 507 | private CertId certId; |
| 508 | private int certStatus; |
| 509 | private Date thisUpdate; |
| 510 | private Date nextUpdate; |
| 511 | private Date revocationTime; |
| 512 | private CRLReason revocationReason = CRLReason.UNSPECIFIED; |
| 513 | private HashMap<String, java.security.cert.Extension> singleExtensions; |
| 514 | |
| 515 | private SingleResponse(DerValue der) throws IOException { |
| 516 | if (der.tag != DerValue.tag_Sequence) { |
| 517 | throw new IOException("Bad ASN.1 encoding in SingleResponse"); |
| 518 | } |
| 519 | DerInputStream tmp = der.data; |
| 520 | |
| 521 | certId = new CertId(tmp.getDerValue().data); |
| 522 | DerValue derVal = tmp.getDerValue(); |
| 523 | short tag = (byte)(derVal.tag & 0x1f); |
| 524 | if (tag == CERT_STATUS_GOOD) { |
| 525 | certStatus = CERT_STATUS_GOOD; |
| 526 | } else if (tag == CERT_STATUS_REVOKED) { |
| 527 | certStatus = CERT_STATUS_REVOKED; |
| 528 | revocationTime = derVal.data.getGeneralizedTime(); |
| 529 | if (derVal.data.available() != 0) { |
| 530 | int reason = derVal.getEnumerated(); |
| 531 | // if reason out-of-range just leave as UNSPECIFIED |
| 532 | if (reason >= 0 && reason < values.length) { |
| 533 | revocationReason = values[reason]; |
| 534 | } |
| 535 | } |
| 536 | // RevokedInfo |
| 537 | if (DEBUG != null) { |
| 538 | DEBUG.println("Revocation time: " + revocationTime); |
| 539 | DEBUG.println("Revocation reason: " + revocationReason); |
| 540 | } |
| 541 | |
| 542 | } else if (tag == CERT_STATUS_UNKNOWN) { |
| 543 | certStatus = CERT_STATUS_UNKNOWN; |
| 544 | |
| 545 | } else { |
| 546 | throw new IOException("Invalid certificate status"); |
| 547 | } |
| 548 | |
| 549 | thisUpdate = tmp.getGeneralizedTime(); |
| 550 | |
| 551 | if (tmp.available() == 0) { |
| 552 | // we are done |
| 553 | } else { |
| 554 | derVal = tmp.getDerValue(); |
| 555 | tag = (byte)(derVal.tag & 0x1f); |
| 556 | if (tag == 0) { |
| 557 | // next update |
| 558 | nextUpdate = derVal.data.getGeneralizedTime(); |
| 559 | |
| 560 | if (tmp.available() == 0) { |
| 561 | // we are done |
| 562 | } else { |
| 563 | derVal = tmp.getDerValue(); |
| 564 | tag = (byte)(derVal.tag & 0x1f); |
| 565 | } |
| 566 | } |
| 567 | } |
| 568 | // singleExtensions |
| 569 | if (tmp.available() > 0) { |
| 570 | derVal = tmp.getDerValue(); |
| 571 | if (derVal.isContextSpecific((byte)1)) { |
| 572 | DerValue[] singleExtDer = derVal.data.getSequence(3); |
| 573 | singleExtensions = |
| 574 | new HashMap<String, java.security.cert.Extension> |
| 575 | (singleExtDer.length); |
| 576 | for (int i = 0; i < singleExtDer.length; i++) { |
| 577 | Extension ext = new Extension(singleExtDer[i]); |
| 578 | singleExtensions.put(ext.getId(), ext); |
| 579 | if (DEBUG != null) { |
| 580 | DEBUG.println("OCSP single extension: " + ext); |
| 581 | } |
| 582 | } |
| 583 | } |
| 584 | } |
| 585 | |
| 586 | Date now = new Date(); |
| 587 | if (DEBUG != null) { |
| 588 | String until = ""; |
| 589 | if (nextUpdate != null) { |
| 590 | until = " until " + nextUpdate; |
| 591 | } |
| 592 | DEBUG.println("Response's validity interval is from " + |
| 593 | thisUpdate + until); |
| 594 | } |
| 595 | // Check that the test date is within the validity interval |
| 596 | if ((thisUpdate != null && now.before(thisUpdate)) || |
| 597 | (nextUpdate != null && now.after(nextUpdate))) { |
| 598 | |
| 599 | if (DEBUG != null) { |
| 600 | DEBUG.println("Response is unreliable: its validity " + |
| 601 | "interval is out-of-date"); |
| 602 | } |
| 603 | throw new IOException("Response is unreliable: its validity " + |
| 604 | "interval is out-of-date"); |
| 605 | } |
| 606 | } |
| 607 | |
| 608 | /* |
| 609 | * Return the certificate's revocation status code |
| 610 | */ |
| 611 | private int getStatus() { |
| 612 | return certStatus; |
| 613 | } |
| 614 | |
| 615 | private CertId getCertId() { |
| 616 | return certId; |
| 617 | } |
| 618 | |
| 619 | private Date getRevocationTime() { |
| 620 | return revocationTime; |
| 621 | } |
| 622 | |
| 623 | private CRLReason getRevocationReason() { |
| 624 | return revocationReason; |
| 625 | } |
| 626 | |
| 627 | private Map<String, java.security.cert.Extension> getSingleExtensions() { |
| 628 | return singleExtensions; |
| 629 | } |
| 630 | |
| 631 | /** |
| 632 | * Construct a string representation of a single OCSP response. |
| 633 | */ |
| 634 | public String toString() { |
| 635 | StringBuilder sb = new StringBuilder(); |
| 636 | sb.append("SingleResponse: \n"); |
| 637 | sb.append(certId); |
| 638 | sb.append("\nCertStatus: "+ certStatusToText(getCertStatus(null)) + |
| 639 | "\n"); |
| 640 | if (certStatus == CERT_STATUS_REVOKED) { |
| 641 | sb.append("revocationTime is " + revocationTime + "\n"); |
| 642 | sb.append("revocationReason is " + revocationReason + "\n"); |
| 643 | } |
| 644 | sb.append("thisUpdate is " + thisUpdate + "\n"); |
| 645 | if (nextUpdate != null) { |
| 646 | sb.append("nextUpdate is " + nextUpdate + "\n"); |
| 647 | } |
| 648 | return sb.toString(); |
| 649 | } |
| 650 | } |
| 651 | } |