diff options
Diffstat (limited to 'prov/src/main/jdk1.3/org/spongycastle/jce/provider/RFC3280CertPathUtilities.java')
| -rw-r--r-- | prov/src/main/jdk1.3/org/spongycastle/jce/provider/RFC3280CertPathUtilities.java | 2582 |
1 files changed, 2582 insertions, 0 deletions
diff --git a/prov/src/main/jdk1.3/org/spongycastle/jce/provider/RFC3280CertPathUtilities.java b/prov/src/main/jdk1.3/org/spongycastle/jce/provider/RFC3280CertPathUtilities.java new file mode 100644 index 00000000..3f37d4c9 --- /dev/null +++ b/prov/src/main/jdk1.3/org/spongycastle/jce/provider/RFC3280CertPathUtilities.java @@ -0,0 +1,2582 @@ +package org.spongycastle.jce.provider; + +import java.io.IOException; +import java.math.BigInteger; +import java.security.GeneralSecurityException; +import java.security.PublicKey; +import java.text.SimpleDateFormat; +import org.spongycastle.jce.cert.CertPath; +import org.spongycastle.jce.cert.CertPathBuilder; +import org.spongycastle.jce.cert.CertPathBuilderException; +import org.spongycastle.jce.cert.CertPathValidatorException; +import java.security.cert.CertificateExpiredException; +import java.security.cert.CertificateNotYetValidException; +import org.spongycastle.jce.cert.PKIXCertPathChecker; +import java.security.cert.CRLException; +import java.security.cert.X509CRL; +import java.security.cert.X509Certificate; +import java.security.cert.X509Extension; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Date; +import java.util.Enumeration; +import java.util.HashMap; +import java.util.HashSet; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.TimeZone; +import java.util.Vector; + +import org.spongycastle.asn1.ASN1Encodable; +import org.spongycastle.asn1.ASN1EncodableVector; +import org.spongycastle.asn1.ASN1InputStream; +import org.spongycastle.asn1.ASN1Primitive; +import org.spongycastle.asn1.ASN1Sequence; +import org.spongycastle.asn1.ASN1TaggedObject; +import org.spongycastle.asn1.ASN1Integer; +import org.spongycastle.asn1.ASN1ObjectIdentifier; +import org.spongycastle.asn1.DERSequence; +import org.spongycastle.asn1.x509.BasicConstraints; +import org.spongycastle.asn1.x509.CRLDistPoint; +import org.spongycastle.asn1.x509.CRLReason; +import org.spongycastle.asn1.x509.DistributionPoint; +import org.spongycastle.asn1.x509.DistributionPointName; +import org.spongycastle.asn1.x509.GeneralName; +import org.spongycastle.asn1.x509.GeneralNames; +import org.spongycastle.asn1.x509.GeneralSubtree; +import org.spongycastle.asn1.x509.IssuingDistributionPoint; +import org.spongycastle.asn1.x509.NameConstraints; +import org.spongycastle.asn1.x509.PolicyInformation; +import org.spongycastle.asn1.x509.X509Extensions; +import org.spongycastle.asn1.x509.X509Name; +import org.spongycastle.jce.exception.ExtCertPathValidatorException; +import org.spongycastle.jce.X509Principal; +import org.spongycastle.jce.PrincipalUtil; +import org.spongycastle.util.Arrays; +import org.spongycastle.x509.ExtendedPKIXBuilderParameters; +import org.spongycastle.x509.ExtendedPKIXParameters; +import org.spongycastle.x509.X509CRLStoreSelector; +import org.spongycastle.x509.X509CertStoreSelector; + +public class RFC3280CertPathUtilities +{ + private static final PKIXCRLUtil CRL_UTIL = new PKIXCRLUtil(); + + /** + * If the complete CRL includes an issuing distribution point (IDP) CRL + * extension check the following: + * <p/> + * (i) If the distribution point name is present in the IDP CRL extension + * and the distribution field is present in the DP, then verify that one of + * the names in the IDP matches one of the names in the DP. If the + * distribution point name is present in the IDP CRL extension and the + * distribution field is omitted from the DP, then verify that one of the + * names in the IDP matches one of the names in the cRLIssuer field of the + * DP. + * </p> + * <p/> + * (ii) If the onlyContainsUserCerts boolean is asserted in the IDP CRL + * extension, verify that the certificate does not include the basic + * constraints extension with the cA boolean asserted. + * </p> + * <p/> + * (iii) If the onlyContainsCACerts boolean is asserted in the IDP CRL + * extension, verify that the certificate includes the basic constraints + * extension with the cA boolean asserted. + * </p> + * <p/> + * (iv) Verify that the onlyContainsAttributeCerts boolean is not asserted. + * </p> + * + * @param dp The distribution point. + * @param cert The certificate. + * @param crl The CRL. + * @throws AnnotatedException if one of the conditions is not met or an error occurs. + */ + protected static void processCRLB2( + DistributionPoint dp, + Object cert, + X509CRL crl) + throws AnnotatedException + { + IssuingDistributionPoint idp = null; + try + { + idp = IssuingDistributionPoint.getInstance(CertPathValidatorUtilities.getExtensionValue(crl, + RFC3280CertPathUtilities.ISSUING_DISTRIBUTION_POINT)); + } + catch (Exception e) + { + throw new AnnotatedException("Issuing distribution point extension could not be decoded.", e); + } + // (b) (2) (i) + // distribution point name is present + if (idp != null) + { + if (idp.getDistributionPoint() != null) + { + // make list of names + DistributionPointName dpName = IssuingDistributionPoint.getInstance(idp).getDistributionPoint(); + List names = new ArrayList(); + + if (dpName.getType() == DistributionPointName.FULL_NAME) + { + GeneralName[] genNames = GeneralNames.getInstance(dpName.getName()).getNames(); + for (int j = 0; j < genNames.length; j++) + { + names.add(genNames[j]); + } + } + if (dpName.getType() == DistributionPointName.NAME_RELATIVE_TO_CRL_ISSUER) + { + ASN1EncodableVector vec = new ASN1EncodableVector(); + try + { + Enumeration e = ASN1Sequence.getInstance( + ASN1Sequence.fromByteArray(CertPathValidatorUtilities.getIssuerPrincipal(crl) + .getEncoded())).getObjects(); + while (e.hasMoreElements()) + { + vec.add((ASN1Encodable)e.nextElement()); + } + } + catch (IOException e) + { + throw new AnnotatedException("Could not read CRL issuer.", e); + } + vec.add(dpName.getName()); + names.add(new GeneralName(X509Name.getInstance(new DERSequence(vec)))); + } + boolean matches = false; + // verify that one of the names in the IDP matches one + // of the names in the DP. + if (dp.getDistributionPoint() != null) + { + dpName = dp.getDistributionPoint(); + GeneralName[] genNames = null; + if (dpName.getType() == DistributionPointName.FULL_NAME) + { + genNames = GeneralNames.getInstance(dpName.getName()).getNames(); + } + if (dpName.getType() == DistributionPointName.NAME_RELATIVE_TO_CRL_ISSUER) + { + if (dp.getCRLIssuer() != null) + { + genNames = dp.getCRLIssuer().getNames(); + } + else + { + genNames = new GeneralName[1]; + try + { + genNames[0] = new GeneralName(new X509Name( + (ASN1Sequence)ASN1Sequence.fromByteArray(CertPathValidatorUtilities + .getEncodedIssuerPrincipal(cert).getEncoded()))); + } + catch (IOException e) + { + throw new AnnotatedException("Could not read certificate issuer.", e); + } + } + for (int j = 0; j < genNames.length; j++) + { + Enumeration e = ASN1Sequence.getInstance(genNames[j].getName().toASN1Primitive()).getObjects(); + ASN1EncodableVector vec = new ASN1EncodableVector(); + while (e.hasMoreElements()) + { + vec.add((ASN1Encodable)e.nextElement()); + } + vec.add(dpName.getName()); + genNames[j] = new GeneralName(new X509Name(new DERSequence(vec))); + } + } + if (genNames != null) + { + for (int j = 0; j < genNames.length; j++) + { + if (names.contains(genNames[j])) + { + matches = true; + break; + } + } + } + if (!matches) + { + throw new AnnotatedException( + "No match for certificate CRL issuing distribution point name to cRLIssuer CRL distribution point."); + } + } + // verify that one of the names in + // the IDP matches one of the names in the cRLIssuer field of + // the DP + else + { + if (dp.getCRLIssuer() == null) + { + throw new AnnotatedException("Either the cRLIssuer or the distributionPoint field must " + + "be contained in DistributionPoint."); + } + GeneralName[] genNames = dp.getCRLIssuer().getNames(); + for (int j = 0; j < genNames.length; j++) + { + if (names.contains(genNames[j])) + { + matches = true; + break; + } + } + if (!matches) + { + throw new AnnotatedException( + "No match for certificate CRL issuing distribution point name to cRLIssuer CRL distribution point."); + } + } + } + BasicConstraints bc = null; + try + { + bc = BasicConstraints.getInstance(CertPathValidatorUtilities.getExtensionValue((X509Extension)cert, + BASIC_CONSTRAINTS)); + } + catch (Exception e) + { + throw new AnnotatedException("Basic constraints extension could not be decoded.", e); + } + + if (cert instanceof X509Certificate) + { + // (b) (2) (ii) + if (idp.onlyContainsUserCerts() && (bc != null && bc.isCA())) + { + throw new AnnotatedException("CA Cert CRL only contains user certificates."); + } + + // (b) (2) (iii) + if (idp.onlyContainsCACerts() && (bc == null || !bc.isCA())) + { + throw new AnnotatedException("End CRL only contains CA certificates."); + } + } + + // (b) (2) (iv) + if (idp.onlyContainsAttributeCerts()) + { + throw new AnnotatedException("onlyContainsAttributeCerts boolean is asserted."); + } + } + } + + /** + * If the DP includes cRLIssuer, then verify that the issuer field in the + * complete CRL matches cRLIssuer in the DP and that the complete CRL + * contains an issuing distribution point extension with the indirectCRL + * boolean asserted. Otherwise, verify that the CRL issuer matches the + * certificate issuer. + * + * @param dp The distribution point. + * @param cert The certificate ot attribute certificate. + * @param crl The CRL for <code>cert</code>. + * @throws AnnotatedException if one of the above conditions does not apply or an error + * occurs. + */ + protected static void processCRLB1( + DistributionPoint dp, + Object cert, + X509CRL crl) + throws AnnotatedException + { + ASN1Primitive idp = CertPathValidatorUtilities.getExtensionValue(crl, ISSUING_DISTRIBUTION_POINT); + boolean isIndirect = false; + if (idp != null) + { + if (IssuingDistributionPoint.getInstance(idp).isIndirectCRL()) + { + isIndirect = true; + } + } + byte[] issuerBytes = CertPathValidatorUtilities.getIssuerPrincipal(crl).getEncoded(); + + boolean matchIssuer = false; + if (dp.getCRLIssuer() != null) + { + GeneralName genNames[] = dp.getCRLIssuer().getNames(); + for (int j = 0; j < genNames.length; j++) + { + if (genNames[j].getTagNo() == GeneralName.directoryName) + { + try + { + if (Arrays.areEqual(genNames[j].getName().toASN1Primitive().getEncoded(), issuerBytes)) + { + matchIssuer = true; + } + } + catch (IOException e) + { + throw new AnnotatedException( + "CRL issuer information from distribution point cannot be decoded.", e); + } + } + } + if (matchIssuer && !isIndirect) + { + throw new AnnotatedException("Distribution point contains cRLIssuer field but CRL is not indirect."); + } + if (!matchIssuer) + { + throw new AnnotatedException("CRL issuer of CRL does not match CRL issuer of distribution point."); + } + } + else + { + if (CertPathValidatorUtilities.getIssuerPrincipal(crl).equals( + CertPathValidatorUtilities.getEncodedIssuerPrincipal(cert))) + { + matchIssuer = true; + } + } + if (!matchIssuer) + { + throw new AnnotatedException("Cannot find matching CRL issuer for certificate."); + } + } + + protected static ReasonsMask processCRLD( + X509CRL crl, + DistributionPoint dp) + throws AnnotatedException + { + IssuingDistributionPoint idp = null; + try + { + idp = IssuingDistributionPoint.getInstance(CertPathValidatorUtilities.getExtensionValue(crl, + RFC3280CertPathUtilities.ISSUING_DISTRIBUTION_POINT)); + } + catch (Exception e) + { + throw new AnnotatedException("Issuing distribution point extension could not be decoded.", e); + } + // (d) (1) + if (idp != null && idp.getOnlySomeReasons() != null && dp.getReasons() != null) + { + return new ReasonsMask(dp.getReasons()).intersect(new ReasonsMask(idp.getOnlySomeReasons())); + } + // (d) (4) + if ((idp == null || idp.getOnlySomeReasons() == null) && dp.getReasons() == null) + { + return ReasonsMask.allReasons; + } + // (d) (2) and (d)(3) + return (dp.getReasons() == null + ? ReasonsMask.allReasons + : new ReasonsMask(dp.getReasons())).intersect(idp == null + ? ReasonsMask.allReasons + : new ReasonsMask(idp.getOnlySomeReasons())); + + } + + public static final String CERTIFICATE_POLICIES = X509Extensions.CertificatePolicies.getId(); + + public static final String POLICY_MAPPINGS = X509Extensions.PolicyMappings.getId(); + + public static final String INHIBIT_ANY_POLICY = X509Extensions.InhibitAnyPolicy.getId(); + + public static final String ISSUING_DISTRIBUTION_POINT = X509Extensions.IssuingDistributionPoint.getId(); + + public static final String FRESHEST_CRL = X509Extensions.FreshestCRL.getId(); + + public static final String DELTA_CRL_INDICATOR = X509Extensions.DeltaCRLIndicator.getId(); + + public static final String POLICY_CONSTRAINTS = X509Extensions.PolicyConstraints.getId(); + + public static final String BASIC_CONSTRAINTS = X509Extensions.BasicConstraints.getId(); + + public static final String CRL_DISTRIBUTION_POINTS = X509Extensions.CRLDistributionPoints.getId(); + + public static final String SUBJECT_ALTERNATIVE_NAME = X509Extensions.SubjectAlternativeName.getId(); + + public static final String NAME_CONSTRAINTS = X509Extensions.NameConstraints.getId(); + + public static final String AUTHORITY_KEY_IDENTIFIER = X509Extensions.AuthorityKeyIdentifier.getId(); + + public static final String KEY_USAGE = X509Extensions.KeyUsage.getId(); + + public static final String CRL_NUMBER = X509Extensions.CRLNumber.getId(); + + public static final String ANY_POLICY = "2.5.29.32.0"; + + /* + * key usage bits + */ + protected static final int KEY_CERT_SIGN = 5; + + protected static final int CRL_SIGN = 6; + + /** + * Obtain and validate the certification path for the complete CRL issuer. + * If a key usage extension is present in the CRL issuer's certificate, + * verify that the cRLSign bit is set. + * + * @param crl CRL which contains revocation information for the certificate + * <code>cert</code>. + * @param cert The attribute certificate or certificate to check if it is + * revoked. + * @param defaultCRLSignCert The issuer certificate of the certificate <code>cert</code>. + * @param defaultCRLSignKey The public key of the issuer certificate + * <code>defaultCRLSignCert</code>. + * @param paramsPKIX paramsPKIX PKIX parameters. + * @param certPathCerts The certificates on the certification path. + * @return A <code>Set</code> with all keys of possible CRL issuer + * certificates. + * @throws AnnotatedException if the CRL is not valid or the status cannot be checked or + * some error occurs. + */ + protected static Set processCRLF( + X509CRL crl, + Object cert, + X509Certificate defaultCRLSignCert, + PublicKey defaultCRLSignKey, + ExtendedPKIXParameters paramsPKIX, + List certPathCerts) + throws AnnotatedException + { + // (f) + + // get issuer from CRL + X509CertStoreSelector selector = new X509CertStoreSelector(); + try + { + byte[] issuerPrincipal = CertPathValidatorUtilities.getIssuerPrincipal(crl).getEncoded(); + selector.setSubject(issuerPrincipal); + } + catch (IOException e) + { + throw new AnnotatedException( + "Subject criteria for certificate selector to find issuer certificate for CRL could not be set.", e); + } + + // get CRL signing certs + Collection coll; + try + { + coll = CertPathValidatorUtilities.findCertificates(selector, paramsPKIX.getStores()); + coll.addAll(CertPathValidatorUtilities.findCertificates(selector, paramsPKIX.getAdditionalStores())); + coll.addAll(CertPathValidatorUtilities.findCertificates(selector, paramsPKIX.getCertStores())); + } + catch (AnnotatedException e) + { + throw new AnnotatedException("Issuer certificate for CRL cannot be searched.", e); + } + + coll.add(defaultCRLSignCert); + + Iterator cert_it = coll.iterator(); + + List validCerts = new ArrayList(); + List validKeys = new ArrayList(); + + while (cert_it.hasNext()) + { + X509Certificate signingCert = (X509Certificate)cert_it.next(); + + /* + * CA of the certificate, for which this CRL is checked, has also + * signed CRL, so skip the path validation, because is already done + */ + if (signingCert.equals(defaultCRLSignCert)) + { + validCerts.add(signingCert); + validKeys.add(defaultCRLSignKey); + continue; + } + try + { + CertPathBuilder builder = CertPathBuilder.getInstance("PKIX", BouncyCastleProvider.PROVIDER_NAME); + selector = new X509CertStoreSelector(); + selector.setCertificate(signingCert); + ExtendedPKIXParameters temp = (ExtendedPKIXParameters)paramsPKIX.clone(); + temp.setTargetCertConstraints(selector); + ExtendedPKIXBuilderParameters params = (ExtendedPKIXBuilderParameters)ExtendedPKIXBuilderParameters + .getInstance(temp); + /* + * if signingCert is placed not higher on the cert path a + * dependency loop results. CRL for cert is checked, but + * signingCert is needed for checking the CRL which is dependent + * on checking cert because it is higher in the cert path and so + * signing signingCert transitively. so, revocation is disabled, + * forgery attacks of the CRL are detected in this outer loop + * for all other it must be enabled to prevent forgery attacks + */ + if (certPathCerts.contains(signingCert)) + { + params.setRevocationEnabled(false); + } + else + { + params.setRevocationEnabled(true); + } + List certs = builder.build(params).getCertPath().getCertificates(); + validCerts.add(signingCert); + validKeys.add(CertPathValidatorUtilities.getNextWorkingKey(certs, 0)); + } + catch (CertPathBuilderException e) + { + throw new AnnotatedException("Internal error.", e); + } + catch (CertPathValidatorException e) + { + throw new AnnotatedException("Public key of issuer certificate of CRL could not be retrieved.", e); + } + catch (Exception e) + { + throw new RuntimeException(e.getMessage()); + } + } + + Set checkKeys = new HashSet(); + + AnnotatedException lastException = null; + for (int i = 0; i < validCerts.size(); i++) + { + X509Certificate signCert = (X509Certificate)validCerts.get(i); + boolean[] keyusage = signCert.getKeyUsage(); + + if (keyusage != null && (keyusage.length < 7 || !keyusage[CRL_SIGN])) + { + lastException = new AnnotatedException( + "Issuer certificate key usage extension does not permit CRL signing."); + } + else + { + checkKeys.add(validKeys.get(i)); + } + } + + if (checkKeys.isEmpty() && lastException == null) + { + throw new AnnotatedException("Cannot find a valid issuer certificate."); + } + if (checkKeys.isEmpty() && lastException != null) + { + throw lastException; + } + + return checkKeys; + } + + protected static PublicKey processCRLG( + X509CRL crl, + Set keys) + throws AnnotatedException + { + Exception lastException = null; + for (Iterator it = keys.iterator(); it.hasNext();) + { + PublicKey key = (PublicKey)it.next(); + try + { + crl.verify(key); + return key; + } + catch (Exception e) + { + lastException = e; + } + } + throw new AnnotatedException("Cannot verify CRL.", lastException); + } + + protected static X509CRL processCRLH( + Set deltacrls, + PublicKey key) + throws AnnotatedException + { + Exception lastException = null; + + for (Iterator it = deltacrls.iterator(); it.hasNext();) + { + X509CRL crl = (X509CRL)it.next(); + try + { + crl.verify(key); + return crl; + } + catch (Exception e) + { + lastException = e; + } + } + + if (lastException != null) + { + throw new AnnotatedException("Cannot verify delta CRL.", lastException); + } + return null; + } + + protected static Set processCRLA1i( + Date currentDate, + ExtendedPKIXParameters paramsPKIX, + X509Certificate cert, + X509CRL crl) + throws AnnotatedException + { + Set set = new HashSet(); + if (paramsPKIX.isUseDeltasEnabled()) + { + CRLDistPoint freshestCRL = null; + try + { + freshestCRL = CRLDistPoint + .getInstance(CertPathValidatorUtilities.getExtensionValue(cert, FRESHEST_CRL)); + } + catch (AnnotatedException e) + { + throw new AnnotatedException("Freshest CRL extension could not be decoded from certificate.", e); + } + if (freshestCRL == null) + { + try + { + freshestCRL = CRLDistPoint.getInstance(CertPathValidatorUtilities.getExtensionValue(crl, + FRESHEST_CRL)); + } + catch (AnnotatedException e) + { + throw new AnnotatedException("Freshest CRL extension could not be decoded from CRL.", e); + } + } + if (freshestCRL != null) + { + try + { + CertPathValidatorUtilities.addAdditionalStoresFromCRLDistributionPoint(freshestCRL, paramsPKIX); + } + catch (AnnotatedException e) + { + throw new AnnotatedException( + "No new delta CRL locations could be added from Freshest CRL extension.", e); + } + // get delta CRL(s) + try + { + set.addAll(CertPathValidatorUtilities.getDeltaCRLs(currentDate, paramsPKIX, crl)); + } + catch (AnnotatedException e) + { + throw new AnnotatedException("Exception obtaining delta CRLs.", e); + } + } + } + return set; + } + + protected static Set[] processCRLA1ii( + Date currentDate, + ExtendedPKIXParameters paramsPKIX, + X509Certificate cert, + X509CRL crl) + throws AnnotatedException + { + Set deltaSet = new HashSet(); + X509CRLStoreSelector crlselect = new X509CRLStoreSelector(); + crlselect.setCertificateChecking(cert); + + try + { + crlselect.addIssuerName(PrincipalUtil.getIssuerX509Principal(crl).getEncoded()); + } + catch (CRLException e) + { + throw new AnnotatedException("Cannot extract issuer from CRL." + e, e); + } + catch (IOException e) + { + throw new AnnotatedException("Cannot extract issuer from CRL." + e, e); + } + + crlselect.setCompleteCRLEnabled(true); + Set completeSet = CRL_UTIL.findCRLs(crlselect, paramsPKIX, currentDate); + + if (paramsPKIX.isUseDeltasEnabled()) + { + // get delta CRL(s) + try + { + deltaSet.addAll(CertPathValidatorUtilities.getDeltaCRLs(currentDate, paramsPKIX, crl)); + } + catch (AnnotatedException e) + { + throw new AnnotatedException("Exception obtaining delta CRLs.", e); + } + } + return new Set[] + { + completeSet, + deltaSet}; + } + + + + /** + * If use-deltas is set, verify the issuer and scope of the delta CRL. + * + * @param deltaCRL The delta CRL. + * @param completeCRL The complete CRL. + * @param pkixParams The PKIX paramaters. + * @throws AnnotatedException if an exception occurs. + */ + protected static void processCRLC( + X509CRL deltaCRL, + X509CRL completeCRL, + ExtendedPKIXParameters pkixParams) + throws AnnotatedException + { + if (deltaCRL == null) + { + return; + } + IssuingDistributionPoint completeidp = null; + try + { + completeidp = IssuingDistributionPoint.getInstance(CertPathValidatorUtilities.getExtensionValue( + completeCRL, RFC3280CertPathUtilities.ISSUING_DISTRIBUTION_POINT)); + } + catch (Exception e) + { + throw new AnnotatedException("Issuing distribution point extension could not be decoded.", e); + } + + if (pkixParams.isUseDeltasEnabled()) + { + // (c) (1) + try + { + if (!PrincipalUtil.getIssuerX509Principal(deltaCRL).equals(PrincipalUtil.getIssuerX509Principal(completeCRL))) + { + throw new AnnotatedException("Complete CRL issuer does not match delta CRL issuer."); + } + } + catch (CRLException e) + { + throw new AnnotatedException( + "Cannot extract issuer from CRL.", e); + } + + // (c) (2) + IssuingDistributionPoint deltaidp = null; + try + { + deltaidp = IssuingDistributionPoint.getInstance(CertPathValidatorUtilities.getExtensionValue( + deltaCRL, ISSUING_DISTRIBUTION_POINT)); + } + catch (Exception e) + { + throw new AnnotatedException( + "Issuing distribution point extension from delta CRL could not be decoded.", e); + } + + boolean match = false; + if (completeidp == null) + { + if (deltaidp == null) + { + match = true; + } + } + else + { + if (completeidp.equals(deltaidp)) + { + match = true; + } + } + if (!match) + { + throw new AnnotatedException( + "Issuing distribution point extension from delta CRL and complete CRL does not match."); + } + + // (c) (3) + ASN1Primitive completeKeyIdentifier = null; + try + { + completeKeyIdentifier = CertPathValidatorUtilities.getExtensionValue( + completeCRL, AUTHORITY_KEY_IDENTIFIER); + } + catch (AnnotatedException e) + { + throw new AnnotatedException( + "Authority key identifier extension could not be extracted from complete CRL.", e); + } + + ASN1Primitive deltaKeyIdentifier = null; + try + { + deltaKeyIdentifier = CertPathValidatorUtilities.getExtensionValue( + deltaCRL, AUTHORITY_KEY_IDENTIFIER); + } + catch (AnnotatedException e) + { + throw new AnnotatedException( + "Authority key identifier extension could not be extracted from delta CRL.", e); + } + + if (completeKeyIdentifier == null) + { + throw new AnnotatedException("CRL authority key identifier is null."); + } + + if (deltaKeyIdentifier == null) + { + throw new AnnotatedException("Delta CRL authority key identifier is null."); + } + + if (!completeKeyIdentifier.equals(deltaKeyIdentifier)) + { + throw new AnnotatedException( + "Delta CRL authority key identifier does not match complete CRL authority key identifier."); + } + } + } + + protected static void processCRLI( + Date validDate, + X509CRL deltacrl, + Object cert, + CertStatus certStatus, + ExtendedPKIXParameters pkixParams) + throws AnnotatedException + { + if (pkixParams.isUseDeltasEnabled() && deltacrl != null) + { + CertPathValidatorUtilities.getCertStatus(validDate, deltacrl, cert, certStatus); + } + } + + protected static void processCRLJ( + Date validDate, + X509CRL completecrl, + Object cert, + CertStatus certStatus) + throws AnnotatedException + { + if (certStatus.getCertStatus() == CertStatus.UNREVOKED) + { + CertPathValidatorUtilities.getCertStatus(validDate, completecrl, cert, certStatus); + } + } + + protected static PKIXPolicyNode prepareCertB( + CertPath certPath, + int index, + List[] policyNodes, + PKIXPolicyNode validPolicyTree, + int policyMapping) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + int n = certs.size(); + // i as defined in the algorithm description + int i = n - index; + // (b) + // + ASN1Sequence pm = null; + try + { + pm = DERSequence.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.POLICY_MAPPINGS)); + } + catch (AnnotatedException ex) + { + throw new ExtCertPathValidatorException("Policy mappings extension could not be decoded.", ex, certPath, + index); + } + PKIXPolicyNode _validPolicyTree = validPolicyTree; + if (pm != null) + { + ASN1Sequence mappings = (ASN1Sequence)pm; + Map m_idp = new HashMap(); + Set s_idp = new HashSet(); + + for (int j = 0; j < mappings.size(); j++) + { + ASN1Sequence mapping = (ASN1Sequence)mappings.getObjectAt(j); + String id_p = ((ASN1ObjectIdentifier)mapping.getObjectAt(0)).getId(); + String sd_p = ((ASN1ObjectIdentifier)mapping.getObjectAt(1)).getId(); + Set tmp; + + if (!m_idp.containsKey(id_p)) + { + tmp = new HashSet(); + tmp.add(sd_p); + m_idp.put(id_p, tmp); + s_idp.add(id_p); + } + else + { + tmp = (Set)m_idp.get(id_p); + tmp.add(sd_p); + } + } + + Iterator it_idp = s_idp.iterator(); + while (it_idp.hasNext()) + { + String id_p = (String)it_idp.next(); + + // + // (1) + // + if (policyMapping > 0) + { + boolean idp_found = false; + Iterator nodes_i = policyNodes[i].iterator(); + while (nodes_i.hasNext()) + { + PKIXPolicyNode node = (PKIXPolicyNode)nodes_i.next(); + if (node.getValidPolicy().equals(id_p)) + { + idp_found = true; + node.expectedPolicies = (Set)m_idp.get(id_p); + break; + } + } + + if (!idp_found) + { + nodes_i = policyNodes[i].iterator(); + while (nodes_i.hasNext()) + { + PKIXPolicyNode node = (PKIXPolicyNode)nodes_i.next(); + if (RFC3280CertPathUtilities.ANY_POLICY.equals(node.getValidPolicy())) + { + Set pq = null; + ASN1Sequence policies = null; + try + { + policies = (ASN1Sequence)CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.CERTIFICATE_POLICIES); + } + catch (AnnotatedException e) + { + throw new ExtCertPathValidatorException( + "Certificate policies extension could not be decoded.", e, certPath, index); + } + Enumeration e = policies.getObjects(); + while (e.hasMoreElements()) + { + PolicyInformation pinfo = null; + try + { + pinfo = PolicyInformation.getInstance(e.nextElement()); + } + catch (Exception ex) + { + throw new CertPathValidatorException( + "Policy information could not be decoded.", ex, certPath, index); + } + if (RFC3280CertPathUtilities.ANY_POLICY.equals(pinfo.getPolicyIdentifier().getId())) + { + try + { + pq = CertPathValidatorUtilities + .getQualifierSet(pinfo.getPolicyQualifiers()); + } + catch (CertPathValidatorException ex) + { + + throw new ExtCertPathValidatorException( + "Policy qualifier info set could not be decoded.", ex, certPath, + index); + } + break; + } + } + boolean ci = false; + if (cert.getCriticalExtensionOIDs() != null) + { + ci = cert.getCriticalExtensionOIDs().contains( + RFC3280CertPathUtilities.CERTIFICATE_POLICIES); + } + + PKIXPolicyNode p_node = (PKIXPolicyNode)node.getParent(); + if (RFC3280CertPathUtilities.ANY_POLICY.equals(p_node.getValidPolicy())) + { + PKIXPolicyNode c_node = new PKIXPolicyNode(new ArrayList(), i, (Set)m_idp + .get(id_p), p_node, pq, id_p, ci); + p_node.addChild(c_node); + policyNodes[i].add(c_node); + } + break; + } + } + } + + // + // (2) + // + } + else if (policyMapping <= 0) + { + Iterator nodes_i = policyNodes[i].iterator(); + while (nodes_i.hasNext()) + { + PKIXPolicyNode node = (PKIXPolicyNode)nodes_i.next(); + if (node.getValidPolicy().equals(id_p)) + { + PKIXPolicyNode p_node = (PKIXPolicyNode)node.getParent(); + p_node.removeChild(node); + nodes_i.remove(); + for (int k = (i - 1); k >= 0; k--) + { + List nodes = policyNodes[k]; + for (int l = 0; l < nodes.size(); l++) + { + PKIXPolicyNode node2 = (PKIXPolicyNode)nodes.get(l); + if (!node2.hasChildren()) + { + _validPolicyTree = CertPathValidatorUtilities.removePolicyNode( + _validPolicyTree, policyNodes, node2); + if (_validPolicyTree == null) + { + break; + } + } + } + } + } + } + } + } + } + return _validPolicyTree; + } + + protected static void prepareNextCertA( + CertPath certPath, + int index) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // + // (a) check the policy mappings + // + ASN1Sequence pm = null; + try + { + pm = DERSequence.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.POLICY_MAPPINGS)); + } + catch (AnnotatedException ex) + { + throw new ExtCertPathValidatorException("Policy mappings extension could not be decoded.", ex, certPath, + index); + } + if (pm != null) + { + ASN1Sequence mappings = pm; + + for (int j = 0; j < mappings.size(); j++) + { + ASN1ObjectIdentifier issuerDomainPolicy = null; + ASN1ObjectIdentifier subjectDomainPolicy = null; + try + { + ASN1Sequence mapping = DERSequence.getInstance(mappings.getObjectAt(j)); + + issuerDomainPolicy = ASN1ObjectIdentifier.getInstance(mapping.getObjectAt(0)); + subjectDomainPolicy = ASN1ObjectIdentifier.getInstance(mapping.getObjectAt(1)); + } + catch (Exception e) + { + throw new ExtCertPathValidatorException("Policy mappings extension contents could not be decoded.", + e, certPath, index); + } + + if (RFC3280CertPathUtilities.ANY_POLICY.equals(issuerDomainPolicy.getId())) + { + + throw new CertPathValidatorException("IssuerDomainPolicy is anyPolicy", null, certPath, index); + } + + if (RFC3280CertPathUtilities.ANY_POLICY.equals(subjectDomainPolicy.getId())) + { + + throw new CertPathValidatorException("SubjectDomainPolicy is anyPolicy,", null, certPath, index); + } + } + } + } + + protected static void processCertF( + CertPath certPath, + int index, + PKIXPolicyNode validPolicyTree, + int explicitPolicy) + throws CertPathValidatorException + { + // + // (f) + // + if (explicitPolicy <= 0 && validPolicyTree == null) + { + throw new ExtCertPathValidatorException("No valid policy tree found when one expected.", null, certPath, + index); + } + } + + protected static PKIXPolicyNode processCertE( + CertPath certPath, + int index, + PKIXPolicyNode validPolicyTree) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // (e) + // + ASN1Sequence certPolicies = null; + try + { + certPolicies = DERSequence.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.CERTIFICATE_POLICIES)); + } + catch (AnnotatedException e) + { + throw new ExtCertPathValidatorException("Could not read certificate policies extension from certificate.", + e, certPath, index); + } + if (certPolicies == null) + { + validPolicyTree = null; + } + return validPolicyTree; + } + + protected static void processCertBC( + CertPath certPath, + int index, + PKIXNameConstraintValidator nameConstraintValidator) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + int n = certs.size(); + // i as defined in the algorithm description + int i = n - index; + // + // (b), (c) permitted and excluded subtree checking. + // + if (!(CertPathValidatorUtilities.isSelfIssued(cert) && (i < n))) + { + X509Principal principal = CertPathValidatorUtilities.getSubjectPrincipal(cert); + ASN1InputStream aIn = new ASN1InputStream(principal.getEncoded()); + ASN1Sequence dns; + + try + { + dns = DERSequence.getInstance(aIn.readObject()); + } + catch (Exception e) + { + throw new CertPathValidatorException("Exception extracting subject name when checking subtrees.", e, + certPath, index); + } + + try + { + nameConstraintValidator.checkPermittedDN(dns); + nameConstraintValidator.checkExcludedDN(dns); + } + catch (PKIXNameConstraintValidatorException e) + { + throw new CertPathValidatorException("Subtree check for certificate subject failed.", e, certPath, + index); + } + + GeneralNames altName = null; + try + { + altName = GeneralNames.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.SUBJECT_ALTERNATIVE_NAME)); + } + catch (Exception e) + { + throw new CertPathValidatorException("Subject alternative name extension could not be decoded.", e, + certPath, index); + } + Vector emails = new X509Name(dns).getValues(X509Name.EmailAddress); + for (Enumeration e = emails.elements(); e.hasMoreElements();) + { + String email = (String)e.nextElement(); + GeneralName emailAsGeneralName = new GeneralName(GeneralName.rfc822Name, email); + try + { + nameConstraintValidator.checkPermitted(emailAsGeneralName); + nameConstraintValidator.checkExcluded(emailAsGeneralName); + } + catch (PKIXNameConstraintValidatorException ex) + { + throw new CertPathValidatorException( + "Subtree check for certificate subject alternative email failed.", ex, certPath, index); + } + } + if (altName != null) + { + GeneralName[] genNames = null; + try + { + genNames = altName.getNames(); + } + catch (Exception e) + { + throw new CertPathValidatorException("Subject alternative name contents could not be decoded.", e, + certPath, index); + } + for (int j = 0; j < genNames.length; j++) + { + + try + { + nameConstraintValidator.checkPermitted(genNames[j]); + nameConstraintValidator.checkExcluded(genNames[j]); + } + catch (PKIXNameConstraintValidatorException e) + { + throw new CertPathValidatorException( + "Subtree check for certificate subject alternative name failed.", e, certPath, index); + } + } + } + } + } + + protected static PKIXPolicyNode processCertD( + CertPath certPath, + int index, + Set acceptablePolicies, + PKIXPolicyNode validPolicyTree, + List[] policyNodes, + int inhibitAnyPolicy) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + int n = certs.size(); + // i as defined in the algorithm description + int i = n - index; + // + // (d) policy Information checking against initial policy and + // policy mapping + // + ASN1Sequence certPolicies = null; + try + { + certPolicies = DERSequence.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.CERTIFICATE_POLICIES)); + } + catch (AnnotatedException e) + { + throw new ExtCertPathValidatorException("Could not read certificate policies extension from certificate.", + e, certPath, index); + } + if (certPolicies != null && validPolicyTree != null) + { + // + // (d) (1) + // + Enumeration e = certPolicies.getObjects(); + Set pols = new HashSet(); + + while (e.hasMoreElements()) + { + PolicyInformation pInfo = PolicyInformation.getInstance(e.nextElement()); + ASN1ObjectIdentifier pOid = pInfo.getPolicyIdentifier(); + + pols.add(pOid.getId()); + + if (!RFC3280CertPathUtilities.ANY_POLICY.equals(pOid.getId())) + { + Set pq = null; + try + { + pq = CertPathValidatorUtilities.getQualifierSet(pInfo.getPolicyQualifiers()); + } + catch (CertPathValidatorException ex) + { + throw new ExtCertPathValidatorException("Policy qualifier info set could not be build.", ex, + certPath, index); + } + + boolean match = CertPathValidatorUtilities.processCertD1i(i, policyNodes, pOid, pq); + + if (!match) + { + CertPathValidatorUtilities.processCertD1ii(i, policyNodes, pOid, pq); + } + } + } + + if (acceptablePolicies.isEmpty() || acceptablePolicies.contains(RFC3280CertPathUtilities.ANY_POLICY)) + { + acceptablePolicies.clear(); + acceptablePolicies.addAll(pols); + } + else + { + Iterator it = acceptablePolicies.iterator(); + Set t1 = new HashSet(); + + while (it.hasNext()) + { + Object o = it.next(); + + if (pols.contains(o)) + { + t1.add(o); + } + } + acceptablePolicies.clear(); + acceptablePolicies.addAll(t1); + } + + // + // (d) (2) + // + if ((inhibitAnyPolicy > 0) || ((i < n) && CertPathValidatorUtilities.isSelfIssued(cert))) + { + e = certPolicies.getObjects(); + + while (e.hasMoreElements()) + { + PolicyInformation pInfo = PolicyInformation.getInstance(e.nextElement()); + + if (RFC3280CertPathUtilities.ANY_POLICY.equals(pInfo.getPolicyIdentifier().getId())) + { + Set _apq = CertPathValidatorUtilities.getQualifierSet(pInfo.getPolicyQualifiers()); + List _nodes = policyNodes[i - 1]; + + for (int k = 0; k < _nodes.size(); k++) + { + PKIXPolicyNode _node = (PKIXPolicyNode)_nodes.get(k); + + Iterator _policySetIter = _node.getExpectedPolicies().iterator(); + while (_policySetIter.hasNext()) + { + Object _tmp = _policySetIter.next(); + + String _policy; + if (_tmp instanceof String) + { + _policy = (String)_tmp; + } + else if (_tmp instanceof ASN1ObjectIdentifier) + { + _policy = ((ASN1ObjectIdentifier)_tmp).getId(); + } + else + { + continue; + } + + boolean _found = false; + Iterator _childrenIter = _node.getChildren(); + + while (_childrenIter.hasNext()) + { + PKIXPolicyNode _child = (PKIXPolicyNode)_childrenIter.next(); + + if (_policy.equals(_child.getValidPolicy())) + { + _found = true; + } + } + + if (!_found) + { + Set _newChildExpectedPolicies = new HashSet(); + _newChildExpectedPolicies.add(_policy); + + PKIXPolicyNode _newChild = new PKIXPolicyNode(new ArrayList(), i, + _newChildExpectedPolicies, _node, _apq, _policy, false); + _node.addChild(_newChild); + policyNodes[i].add(_newChild); + } + } + } + break; + } + } + } + + PKIXPolicyNode _validPolicyTree = validPolicyTree; + // + // (d) (3) + // + for (int j = (i - 1); j >= 0; j--) + { + List nodes = policyNodes[j]; + + for (int k = 0; k < nodes.size(); k++) + { + PKIXPolicyNode node = (PKIXPolicyNode)nodes.get(k); + if (!node.hasChildren()) + { + _validPolicyTree = CertPathValidatorUtilities.removePolicyNode(_validPolicyTree, policyNodes, + node); + if (_validPolicyTree == null) + { + break; + } + } + } + } + + // + // d (4) + // + Set criticalExtensionOids = cert.getCriticalExtensionOIDs(); + + if (criticalExtensionOids != null) + { + boolean critical = criticalExtensionOids.contains(RFC3280CertPathUtilities.CERTIFICATE_POLICIES); + + List nodes = policyNodes[i]; + for (int j = 0; j < nodes.size(); j++) + { + PKIXPolicyNode node = (PKIXPolicyNode)nodes.get(j); + node.setCritical(critical); + } + } + return _validPolicyTree; + } + return null; + } + + protected static void processCertA( + CertPath certPath, + ExtendedPKIXParameters paramsPKIX, + int index, + PublicKey workingPublicKey, + boolean verificationAlreadyPerformed, + X509Principal workingIssuerName, + X509Certificate sign) + throws ExtCertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // (a) verify + // + if (!verificationAlreadyPerformed) + { + try + { + // (a) (1) + // + CertPathValidatorUtilities.verifyX509Certificate(cert, workingPublicKey, + paramsPKIX.getSigProvider()); + } + catch (GeneralSecurityException e) + { + throw new ExtCertPathValidatorException("Could not validate certificate signature.", e, certPath, index); + } + } + + try + { + // (a) (2) + // + cert.checkValidity(CertPathValidatorUtilities + .getValidCertDateFromValidityModel(paramsPKIX, certPath, index)); + } + catch (CertificateExpiredException e) + { + throw new ExtCertPathValidatorException("Could not validate certificate: " + e.getMessage(), e, certPath, index); + } + catch (CertificateNotYetValidException e) + { + throw new ExtCertPathValidatorException("Could not validate certificate: " + e.getMessage(), e, certPath, index); + } + catch (AnnotatedException e) + { + throw new ExtCertPathValidatorException("Could not validate time of certificate.", e, certPath, index); + } + + // + // (a) (3) + // + if (paramsPKIX.isRevocationEnabled()) + { + try + { + checkCRLs(paramsPKIX, cert, CertPathValidatorUtilities.getValidCertDateFromValidityModel(paramsPKIX, + certPath, index), sign, workingPublicKey, certs); + } + catch (AnnotatedException e) + { + Throwable cause = e; + if (null != e.getCause()) + { + cause = e.getCause(); + } + throw new ExtCertPathValidatorException(e.getMessage(), cause, certPath, index); + } + } + + // + // (a) (4) name chaining + // + if (!CertPathValidatorUtilities.getEncodedIssuerPrincipal(cert).equals(workingIssuerName)) + { + throw new ExtCertPathValidatorException("IssuerName(" + CertPathValidatorUtilities.getEncodedIssuerPrincipal(cert) + + ") does not match SubjectName(" + workingIssuerName + ") of signing certificate.", null, + certPath, index); + } + } + + protected static int prepareNextCertI1( + CertPath certPath, + int index, + int explicitPolicy) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // (i) + // + ASN1Sequence pc = null; + try + { + pc = DERSequence.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.POLICY_CONSTRAINTS)); + } + catch (Exception e) + { + throw new ExtCertPathValidatorException("Policy constraints extension cannot be decoded.", e, certPath, + index); + } + + int tmpInt; + + if (pc != null) + { + Enumeration policyConstraints = pc.getObjects(); + + while (policyConstraints.hasMoreElements()) + { + try + { + + ASN1TaggedObject constraint = ASN1TaggedObject.getInstance(policyConstraints.nextElement()); + if (constraint.getTagNo() == 0) + { + tmpInt = ASN1Integer.getInstance(constraint, false).getValue().intValue(); + if (tmpInt < explicitPolicy) + { + return tmpInt; + } + break; + } + } + catch (IllegalArgumentException e) + { + throw new ExtCertPathValidatorException("Policy constraints extension contents cannot be decoded.", + e, certPath, index); + } + } + } + return explicitPolicy; + } + + protected static int prepareNextCertI2( + CertPath certPath, + int index, + int policyMapping) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // (i) + // + ASN1Sequence pc = null; + try + { + pc = DERSequence.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.POLICY_CONSTRAINTS)); + } + catch (Exception e) + { + throw new ExtCertPathValidatorException("Policy constraints extension cannot be decoded.", e, certPath, + index); + } + + int tmpInt; + + if (pc != null) + { + Enumeration policyConstraints = pc.getObjects(); + + while (policyConstraints.hasMoreElements()) + { + try + { + ASN1TaggedObject constraint = ASN1TaggedObject.getInstance(policyConstraints.nextElement()); + if (constraint.getTagNo() == 1) + { + tmpInt = ASN1Integer.getInstance(constraint, false).getValue().intValue(); + if (tmpInt < policyMapping) + { + return tmpInt; + } + break; + } + } + catch (IllegalArgumentException e) + { + throw new ExtCertPathValidatorException("Policy constraints extension contents cannot be decoded.", + e, certPath, index); + } + } + } + return policyMapping; + } + + protected static void prepareNextCertG( + CertPath certPath, + int index, + PKIXNameConstraintValidator nameConstraintValidator) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // (g) handle the name constraints extension + // + NameConstraints nc = null; + try + { + ASN1Sequence ncSeq = DERSequence.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.NAME_CONSTRAINTS)); + if (ncSeq != null) + { + nc = NameConstraints.getInstance(ncSeq); + } + } + catch (Exception e) + { + throw new ExtCertPathValidatorException("Name constraints extension could not be decoded.", e, certPath, + index); + } + if (nc != null) + { + + // + // (g) (1) permitted subtrees + // + GeneralSubtree[] permitted = nc.getPermittedSubtrees(); + if (permitted != null) + { + try + { + nameConstraintValidator.intersectPermittedSubtree(permitted); + } + catch (Exception ex) + { + throw new ExtCertPathValidatorException( + "Permitted subtrees cannot be build from name constraints extension.", ex, certPath, index); + } + } + + // + // (g) (2) excluded subtrees + // + GeneralSubtree[] excluded = nc.getExcludedSubtrees(); + if (excluded != null) + { + for (int i = 0; i != excluded.length; i++) + try + { + nameConstraintValidator.addExcludedSubtree(excluded[i]); + } + catch (Exception ex) + { + throw new ExtCertPathValidatorException( + "Excluded subtrees cannot be build from name constraints extension.", ex, certPath, index); + } + } + } + } + + /** + * Checks a distribution point for revocation information for the + * certificate <code>cert</code>. + * + * @param dp The distribution point to consider. + * @param paramsPKIX PKIX parameters. + * @param cert Certificate to check if it is revoked. + * @param validDate The date when the certificate revocation status should be + * checked. + * @param defaultCRLSignCert The issuer certificate of the certificate <code>cert</code>. + * @param defaultCRLSignKey The public key of the issuer certificate + * <code>defaultCRLSignCert</code>. + * @param certStatus The current certificate revocation status. + * @param reasonMask The reasons mask which is already checked. + * @param certPathCerts The certificates of the certification path. + * @throws AnnotatedException if the certificate is revoked or the status cannot be checked + * or some error occurs. + */ + private static void checkCRL( + DistributionPoint dp, + ExtendedPKIXParameters paramsPKIX, + X509Certificate cert, + Date validDate, + X509Certificate defaultCRLSignCert, + PublicKey defaultCRLSignKey, + CertStatus certStatus, + ReasonsMask reasonMask, + List certPathCerts) + throws AnnotatedException + { + Date currentDate = new Date(System.currentTimeMillis()); + if (validDate.getTime() > currentDate.getTime()) + { + throw new AnnotatedException("Validation time is in future."); + } + + // (a) + /* + * We always get timely valid CRLs, so there is no step (a) (1). + * "locally cached" CRLs are assumed to be in getStore(), additional + * CRLs must be enabled in the ExtendedPKIXParameters and are in + * getAdditionalStore() + */ + + Set crls = CertPathValidatorUtilities.getCompleteCRLs(dp, cert, currentDate, paramsPKIX); + boolean validCrlFound = false; + AnnotatedException lastException = null; + Iterator crl_iter = crls.iterator(); + + while (crl_iter.hasNext() && certStatus.getCertStatus() == CertStatus.UNREVOKED && !reasonMask.isAllReasons()) + { + try + { + X509CRL crl = (X509CRL)crl_iter.next(); + + // (d) + ReasonsMask interimReasonsMask = RFC3280CertPathUtilities.processCRLD(crl, dp); + + // (e) + /* + * The reasons mask is updated at the end, so only valid CRLs + * can update it. If this CRL does not contain new reasons it + * must be ignored. + */ + if (!interimReasonsMask.hasNewReasons(reasonMask)) + { + continue; + } + + // (f) + Set keys = RFC3280CertPathUtilities.processCRLF(crl, cert, defaultCRLSignCert, defaultCRLSignKey, + paramsPKIX, certPathCerts); + // (g) + PublicKey key = RFC3280CertPathUtilities.processCRLG(crl, keys); + + X509CRL deltaCRL = null; + + if (paramsPKIX.isUseDeltasEnabled()) + { + // get delta CRLs + Set deltaCRLs = CertPathValidatorUtilities.getDeltaCRLs(currentDate, paramsPKIX, crl); + // we only want one valid delta CRL + // (h) + deltaCRL = RFC3280CertPathUtilities.processCRLH(deltaCRLs, key); + } + + /* + * CRL must be be valid at the current time, not the validation + * time. If a certificate is revoked with reason keyCompromise, + * cACompromise, it can be used for forgery, also for the past. + * This reason may not be contained in older CRLs. + */ + + /* + * in the chain model signatures stay valid also after the + * certificate has been expired, so they do not have to be in + * the CRL validity time + */ + + if (paramsPKIX.getValidityModel() != ExtendedPKIXParameters.CHAIN_VALIDITY_MODEL) + { + /* + * if a certificate has expired, but was revoked, it is not + * more in the CRL, so it would be regarded as valid if the + * first check is not done + */ + if (cert.getNotAfter().getTime() < crl.getThisUpdate().getTime()) + { + throw new AnnotatedException("No valid CRL for current time found."); + } + } + + RFC3280CertPathUtilities.processCRLB1(dp, cert, crl); + + // (b) (2) + RFC3280CertPathUtilities.processCRLB2(dp, cert, crl); + + // (c) + RFC3280CertPathUtilities.processCRLC(deltaCRL, crl, paramsPKIX); + + // (i) + RFC3280CertPathUtilities.processCRLI(validDate, deltaCRL, cert, certStatus, paramsPKIX); + + // (j) + RFC3280CertPathUtilities.processCRLJ(validDate, crl, cert, certStatus); + + // (k) + if (certStatus.getCertStatus() == CRLReason.removeFromCRL) + { + certStatus.setCertStatus(CertStatus.UNREVOKED); + } + + // update reasons mask + reasonMask.addReasons(interimReasonsMask); + + Set criticalExtensions = crl.getCriticalExtensionOIDs(); + if (criticalExtensions != null) + { + criticalExtensions = new HashSet(criticalExtensions); + criticalExtensions.remove(X509Extensions.IssuingDistributionPoint.getId()); + criticalExtensions.remove(X509Extensions.DeltaCRLIndicator.getId()); + + if (!criticalExtensions.isEmpty()) + { + throw new AnnotatedException("CRL contains unsupported critical extensions."); + } + } + + if (deltaCRL != null) + { + criticalExtensions = deltaCRL.getCriticalExtensionOIDs(); + if (criticalExtensions != null) + { + criticalExtensions = new HashSet(criticalExtensions); + criticalExtensions.remove(X509Extensions.IssuingDistributionPoint.getId()); + criticalExtensions.remove(X509Extensions.DeltaCRLIndicator.getId()); + if (!criticalExtensions.isEmpty()) + { + throw new AnnotatedException("Delta CRL contains unsupported critical extension."); + } + } + } + + validCrlFound = true; + } + catch (AnnotatedException e) + { + lastException = e; + } + } + if (!validCrlFound) + { + throw lastException; + } + } + + /** + * Checks a certificate if it is revoked. + * + * @param paramsPKIX PKIX parameters. + * @param cert Certificate to check if it is revoked. + * @param validDate The date when the certificate revocation status should be + * checked. + * @param sign The issuer certificate of the certificate <code>cert</code>. + * @param workingPublicKey The public key of the issuer certificate <code>sign</code>. + * @param certPathCerts The certificates of the certification path. + * @throws AnnotatedException if the certificate is revoked or the status cannot be checked + * or some error occurs. + */ + protected static void checkCRLs( + ExtendedPKIXParameters paramsPKIX, + X509Certificate cert, + Date validDate, + X509Certificate sign, + PublicKey workingPublicKey, + List certPathCerts) + throws AnnotatedException + { + AnnotatedException lastException = null; + CRLDistPoint crldp = null; + try + { + crldp = CRLDistPoint.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.CRL_DISTRIBUTION_POINTS)); + } + catch (Exception e) + { + throw new AnnotatedException("CRL distribution point extension could not be read.", e); + } + try + { + CertPathValidatorUtilities.addAdditionalStoresFromCRLDistributionPoint(crldp, paramsPKIX); + } + catch (AnnotatedException e) + { + throw new AnnotatedException( + "No additional CRL locations could be decoded from CRL distribution point extension.", e); + } + CertStatus certStatus = new CertStatus(); + ReasonsMask reasonsMask = new ReasonsMask(); + + boolean validCrlFound = false; + // for each distribution point + if (crldp != null) + { + DistributionPoint dps[] = null; + try + { + dps = crldp.getDistributionPoints(); + } + catch (Exception e) + { + throw new AnnotatedException("Distribution points could not be read.", e); + } + if (dps != null) + { + for (int i = 0; i < dps.length && certStatus.getCertStatus() == CertStatus.UNREVOKED && !reasonsMask.isAllReasons(); i++) + { + ExtendedPKIXParameters paramsPKIXClone = (ExtendedPKIXParameters)paramsPKIX.clone(); + try + { + checkCRL(dps[i], paramsPKIXClone, cert, validDate, sign, workingPublicKey, certStatus, reasonsMask, certPathCerts); + validCrlFound = true; + } + catch (AnnotatedException e) + { + lastException = e; + } + } + } + } + + /* + * If the revocation status has not been determined, repeat the process + * above with any available CRLs not specified in a distribution point + * but issued by the certificate issuer. + */ + + if (certStatus.getCertStatus() == CertStatus.UNREVOKED && !reasonsMask.isAllReasons()) + { + try + { + /* + * assume a DP with both the reasons and the cRLIssuer fields + * omitted and a distribution point name of the certificate + * issuer. + */ + ASN1Primitive issuer = null; + try + { + issuer = new ASN1InputStream(CertPathValidatorUtilities.getEncodedIssuerPrincipal(cert).getEncoded()) + .readObject(); + } + catch (Exception e) + { + throw new AnnotatedException("Issuer from certificate for CRL could not be reencoded.", e); + } + DistributionPoint dp = new DistributionPoint(new DistributionPointName(0, new GeneralNames( + new GeneralName(GeneralName.directoryName, issuer))), null, null); + ExtendedPKIXParameters paramsPKIXClone = (ExtendedPKIXParameters)paramsPKIX.clone(); + checkCRL(dp, paramsPKIXClone, cert, validDate, sign, workingPublicKey, certStatus, reasonsMask, + certPathCerts); + validCrlFound = true; + } + catch (AnnotatedException e) + { + lastException = e; + } + } + + if (!validCrlFound) + { + if (lastException instanceof AnnotatedException) + { + throw lastException; + } + + throw new AnnotatedException("No valid CRL found.", lastException); + } + if (certStatus.getCertStatus() != CertStatus.UNREVOKED) + { + SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss +0000"); + df.setTimeZone(TimeZone.getTimeZone("UTC")); + String message = "Certificate revocation after " + df.format(certStatus.getRevocationDate()); + message += ", reason: " + crlReasons[certStatus.getCertStatus()]; + throw new AnnotatedException(message); + } + if (!reasonsMask.isAllReasons() && certStatus.getCertStatus() == CertStatus.UNREVOKED) + { + certStatus.setCertStatus(CertStatus.UNDETERMINED); + } + if (certStatus.getCertStatus() == CertStatus.UNDETERMINED) + { + throw new AnnotatedException("Certificate status could not be determined."); + } + } + + protected static int prepareNextCertJ( + CertPath certPath, + int index, + int inhibitAnyPolicy) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // (j) + // + ASN1Integer iap = null; + try + { + iap = ASN1Integer.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.INHIBIT_ANY_POLICY)); + } + catch (Exception e) + { + throw new ExtCertPathValidatorException("Inhibit any-policy extension cannot be decoded.", e, certPath, + index); + } + + if (iap != null) + { + int _inhibitAnyPolicy = iap.getValue().intValue(); + + if (_inhibitAnyPolicy < inhibitAnyPolicy) + { + return _inhibitAnyPolicy; + } + } + return inhibitAnyPolicy; + } + + protected static void prepareNextCertK( + CertPath certPath, + int index) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // (k) + // + BasicConstraints bc = null; + try + { + bc = BasicConstraints.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.BASIC_CONSTRAINTS)); + } + catch (Exception e) + { + throw new ExtCertPathValidatorException("Basic constraints extension cannot be decoded.", e, certPath, + index); + } + if (bc != null) + { + if (!(bc.isCA())) + { + throw new CertPathValidatorException("Not a CA certificate"); + } + } + else + { + throw new CertPathValidatorException("Intermediate certificate lacks BasicConstraints"); + } + } + + protected static int prepareNextCertL( + CertPath certPath, + int index, + int maxPathLength) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // (l) + // + if (!CertPathValidatorUtilities.isSelfIssued(cert)) + { + if (maxPathLength <= 0) + { + throw new ExtCertPathValidatorException("Max path length not greater than zero", null, certPath, index); + } + + return maxPathLength - 1; + } + return maxPathLength; + } + + protected static int prepareNextCertM( + CertPath certPath, + int index, + int maxPathLength) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + + // + // (m) + // + BasicConstraints bc = null; + try + { + bc = BasicConstraints.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.BASIC_CONSTRAINTS)); + } + catch (Exception e) + { + throw new ExtCertPathValidatorException("Basic constraints extension cannot be decoded.", e, certPath, + index); + } + if (bc != null) + { + BigInteger _pathLengthConstraint = bc.getPathLenConstraint(); + + if (_pathLengthConstraint != null) + { + int _plc = _pathLengthConstraint.intValue(); + + if (_plc < maxPathLength) + { + return _plc; + } + } + } + return maxPathLength; + } + + protected static void prepareNextCertN( + CertPath certPath, + int index) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + + // + // (n) + // + boolean[] _usage = cert.getKeyUsage(); + + if ((_usage != null) && !_usage[RFC3280CertPathUtilities.KEY_CERT_SIGN]) + { + throw new ExtCertPathValidatorException( + "Issuer certificate keyusage extension is critical and does not permit key signing.", null, + certPath, index); + } + } + + protected static void prepareNextCertO( + CertPath certPath, + int index, + Set criticalExtensions, + List pathCheckers) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // (o) + // + + Iterator tmpIter; + tmpIter = pathCheckers.iterator(); + while (tmpIter.hasNext()) + { + try + { + ((PKIXCertPathChecker)tmpIter.next()).check(cert, criticalExtensions); + } + catch (CertPathValidatorException e) + { + throw new CertPathValidatorException(e.getMessage(), e.getCause(), certPath, index); + } + } + if (!criticalExtensions.isEmpty()) + { + throw new ExtCertPathValidatorException("Certificate has unsupported critical extension: " + criticalExtensions, null, certPath, + index); + } + } + + protected static int prepareNextCertH1( + CertPath certPath, + int index, + int explicitPolicy) + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // (h) + // + if (!CertPathValidatorUtilities.isSelfIssued(cert)) + { + // + // (1) + // + if (explicitPolicy != 0) + { + return explicitPolicy - 1; + } + } + return explicitPolicy; + } + + protected static int prepareNextCertH2( + CertPath certPath, + int index, + int policyMapping) + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // (h) + // + if (!CertPathValidatorUtilities.isSelfIssued(cert)) + { + // + // (2) + // + if (policyMapping != 0) + { + return policyMapping - 1; + } + } + return policyMapping; + } + + protected static int prepareNextCertH3( + CertPath certPath, + int index, + int inhibitAnyPolicy) + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // (h) + // + if (!CertPathValidatorUtilities.isSelfIssued(cert)) + { + // + // (3) + // + if (inhibitAnyPolicy != 0) + { + return inhibitAnyPolicy - 1; + } + } + return inhibitAnyPolicy; + } + + protected static final String[] crlReasons = new String[] + { + "unspecified", + "keyCompromise", + "cACompromise", + "affiliationChanged", + "superseded", + "cessationOfOperation", + "certificateHold", + "unknown", + "removeFromCRL", + "privilegeWithdrawn", + "aACompromise"}; + + protected static int wrapupCertA( + int explicitPolicy, + X509Certificate cert) + { + // + // (a) + // + if (!CertPathValidatorUtilities.isSelfIssued(cert) && (explicitPolicy != 0)) + { + explicitPolicy--; + } + return explicitPolicy; + } + + protected static int wrapupCertB( + CertPath certPath, + int index, + int explicitPolicy) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + // + // (b) + // + int tmpInt; + ASN1Sequence pc = null; + try + { + pc = DERSequence.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, + RFC3280CertPathUtilities.POLICY_CONSTRAINTS)); + } + catch (AnnotatedException e) + { + throw new ExtCertPathValidatorException("Policy constraints could not be decoded.", e, certPath, index); + } + if (pc != null) + { + Enumeration policyConstraints = pc.getObjects(); + + while (policyConstraints.hasMoreElements()) + { + ASN1TaggedObject constraint = (ASN1TaggedObject)policyConstraints.nextElement(); + switch (constraint.getTagNo()) + { + case 0: + try + { + tmpInt = ASN1Integer.getInstance(constraint, false).getValue().intValue(); + } + catch (Exception e) + { + throw new ExtCertPathValidatorException( + "Policy constraints requireExplicitPolicy field could not be decoded.", e, certPath, + index); + } + if (tmpInt == 0) + { + return 0; + } + break; + } + } + } + return explicitPolicy; + } + + protected static void wrapupCertF( + CertPath certPath, + int index, + List pathCheckers, + Set criticalExtensions) + throws CertPathValidatorException + { + List certs = certPath.getCertificates(); + X509Certificate cert = (X509Certificate)certs.get(index); + Iterator tmpIter; + tmpIter = pathCheckers.iterator(); + while (tmpIter.hasNext()) + { + try + { + ((PKIXCertPathChecker)tmpIter.next()).check(cert, criticalExtensions); + } + catch (CertPathValidatorException e) + { + throw new ExtCertPathValidatorException("Additional certificate path checker failed.", e, certPath, + index); + } + } + + if (!criticalExtensions.isEmpty()) + { + throw new ExtCertPathValidatorException("Certificate has unsupported critical extension: " + criticalExtensions, null, certPath, + index); + } + } + + protected static PKIXPolicyNode wrapupCertG( + CertPath certPath, + ExtendedPKIXParameters paramsPKIX, + Set userInitialPolicySet, + int index, + List[] policyNodes, + PKIXPolicyNode validPolicyTree, + Set acceptablePolicies) + throws CertPathValidatorException + { + int n = certPath.getCertificates().size(); + // + // (g) + // + PKIXPolicyNode intersection; + + // + // (g) (i) + // + if (validPolicyTree == null) + { + if (paramsPKIX.isExplicitPolicyRequired()) + { + throw new ExtCertPathValidatorException("Explicit policy requested but none available.", null, + certPath, index); + } + intersection = null; + } + else if (CertPathValidatorUtilities.isAnyPolicy(userInitialPolicySet)) // (g) + // (ii) + { + if (paramsPKIX.isExplicitPolicyRequired()) + { + if (acceptablePolicies.isEmpty()) + { + throw new ExtCertPathValidatorException("Explicit policy requested but none available.", null, + certPath, index); + } + else + { + Set _validPolicyNodeSet = new HashSet(); + + for (int j = 0; j < policyNodes.length; j++) + { + List _nodeDepth = policyNodes[j]; + + for (int k = 0; k < _nodeDepth.size(); k++) + { + PKIXPolicyNode _node = (PKIXPolicyNode)_nodeDepth.get(k); + + if (RFC3280CertPathUtilities.ANY_POLICY.equals(_node.getValidPolicy())) + { + Iterator _iter = _node.getChildren(); + while (_iter.hasNext()) + { + _validPolicyNodeSet.add(_iter.next()); + } + } + } + } + + Iterator _vpnsIter = _validPolicyNodeSet.iterator(); + while (_vpnsIter.hasNext()) + { + PKIXPolicyNode _node = (PKIXPolicyNode)_vpnsIter.next(); + String _validPolicy = _node.getValidPolicy(); + + if (!acceptablePolicies.contains(_validPolicy)) + { + // validPolicyTree = + // removePolicyNode(validPolicyTree, policyNodes, + // _node); + } + } + if (validPolicyTree != null) + { + for (int j = (n - 1); j >= 0; j--) + { + List nodes = policyNodes[j]; + + for (int k = 0; k < nodes.size(); k++) + { + PKIXPolicyNode node = (PKIXPolicyNode)nodes.get(k); + if (!node.hasChildren()) + { + validPolicyTree = CertPathValidatorUtilities.removePolicyNode(validPolicyTree, + policyNodes, node); + } + } + } + } + } + } + + intersection = validPolicyTree; + } + else + { + // + // (g) (iii) + // + // This implementation is not exactly same as the one described in + // RFC3280. + // However, as far as the validation result is concerned, both + // produce + // adequate result. The only difference is whether AnyPolicy is + // remain + // in the policy tree or not. + // + // (g) (iii) 1 + // + Set _validPolicyNodeSet = new HashSet(); + + for (int j = 0; j < policyNodes.length; j++) + { + List _nodeDepth = policyNodes[j]; + + for (int k = 0; k < _nodeDepth.size(); k++) + { + PKIXPolicyNode _node = (PKIXPolicyNode)_nodeDepth.get(k); + + if (RFC3280CertPathUtilities.ANY_POLICY.equals(_node.getValidPolicy())) + { + Iterator _iter = _node.getChildren(); + while (_iter.hasNext()) + { + PKIXPolicyNode _c_node = (PKIXPolicyNode)_iter.next(); + if (!RFC3280CertPathUtilities.ANY_POLICY.equals(_c_node.getValidPolicy())) + { + _validPolicyNodeSet.add(_c_node); + } + } + } + } + } + + // + // (g) (iii) 2 + // + Iterator _vpnsIter = _validPolicyNodeSet.iterator(); + while (_vpnsIter.hasNext()) + { + PKIXPolicyNode _node = (PKIXPolicyNode)_vpnsIter.next(); + String _validPolicy = _node.getValidPolicy(); + + if (!userInitialPolicySet.contains(_validPolicy)) + { + validPolicyTree = CertPathValidatorUtilities.removePolicyNode(validPolicyTree, policyNodes, _node); + } + } + + // + // (g) (iii) 4 + // + if (validPolicyTree != null) + { + for (int j = (n - 1); j >= 0; j--) + { + List nodes = policyNodes[j]; + + for (int k = 0; k < nodes.size(); k++) + { + PKIXPolicyNode node = (PKIXPolicyNode)nodes.get(k); + if (!node.hasChildren()) + { + validPolicyTree = CertPathValidatorUtilities.removePolicyNode(validPolicyTree, policyNodes, + node); + } + } + } + } + + intersection = validPolicyTree; + } + return intersection; + } + +} |