org.bouncycastle.jce.provider.CertPathValidatorUtilities Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of bcprov-jdk14 Show documentation
Show all versions of bcprov-jdk14 Show documentation
The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.4.
package org.bouncycastle.jce.provider; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.math.BigInteger; import java.net.URI; import java.security.GeneralSecurityException; import java.security.KeyFactory; import java.security.PublicKey; import java.security.cert.CRLException; import java.security.cert.CertPath; import java.security.cert.CertPathBuilderException; import java.security.cert.CertPathValidatorException; import java.security.cert.CertStore; import java.security.cert.CertStoreException; import java.security.cert.Certificate; import java.security.cert.CertificateFactory; import java.security.cert.CertificateParsingException; import java.security.cert.PolicyQualifierInfo; import java.security.cert.TrustAnchor; import java.security.cert.X509CRL; import java.security.cert.X509CRLEntry; import java.security.cert.X509CRLSelector; import java.security.cert.X509CertSelector; import java.security.cert.X509Certificate; import java.security.interfaces.DSAParams; import java.security.interfaces.DSAPublicKey; import java.security.spec.DSAPublicKeySpec; import java.text.ParseException; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.Date; import java.util.Enumeration; import java.util.HashSet; import java.util.Iterator; import java.util.LinkedHashSet; import java.util.List; import java.util.Map; import java.util.Set; import javax.security.auth.x500.X500Principal; import org.bouncycastle.asn1.ASN1Encodable; import org.bouncycastle.asn1.ASN1Enumerated; import org.bouncycastle.asn1.ASN1GeneralizedTime; import org.bouncycastle.asn1.ASN1Integer; import org.bouncycastle.asn1.ASN1ObjectIdentifier; import org.bouncycastle.asn1.ASN1OctetString; import org.bouncycastle.asn1.ASN1OutputStream; import org.bouncycastle.asn1.ASN1Primitive; import org.bouncycastle.asn1.ASN1Sequence; import org.bouncycastle.asn1.ASN1String; import org.bouncycastle.asn1.DEROctetString; import org.bouncycastle.asn1.DERSequence; import org.bouncycastle.internal.asn1.isismtt.ISISMTTObjectIdentifiers; import org.bouncycastle.asn1.x500.X500Name; import org.bouncycastle.asn1.x500.style.RFC4519Style; import org.bouncycastle.asn1.x509.AlgorithmIdentifier; import org.bouncycastle.asn1.x509.AuthorityKeyIdentifier; import org.bouncycastle.asn1.x509.CRLDistPoint; import org.bouncycastle.asn1.x509.CRLReason; import org.bouncycastle.asn1.x509.DistributionPoint; import org.bouncycastle.asn1.x509.DistributionPointName; import org.bouncycastle.asn1.x509.Extension; import org.bouncycastle.asn1.x509.GeneralName; import org.bouncycastle.asn1.x509.GeneralNames; import org.bouncycastle.asn1.x509.PolicyInformation; import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo; import org.bouncycastle.jcajce.PKIXCRLStore; import org.bouncycastle.jcajce.PKIXCRLStoreSelector; import org.bouncycastle.jcajce.PKIXCertRevocationCheckerParameters; import org.bouncycastle.jcajce.PKIXCertStore; import org.bouncycastle.jcajce.PKIXCertStoreSelector; import org.bouncycastle.jcajce.PKIXExtendedBuilderParameters; import org.bouncycastle.jcajce.PKIXExtendedParameters; import org.bouncycastle.jcajce.util.JcaJceHelper; import org.bouncycastle.jce.exception.ExtCertPathBuilderException; import org.bouncycastle.jce.exception.ExtCertPathValidatorException; import org.bouncycastle.util.Properties; import org.bouncycastle.util.Selector; import org.bouncycastle.util.Store; import org.bouncycastle.util.StoreException; import org.bouncycastle.x509.X509AttributeCertificate; class CertPathValidatorUtilities { protected static final String CERTIFICATE_POLICIES = Extension.certificatePolicies.getId(); protected static final String BASIC_CONSTRAINTS = Extension.basicConstraints.getId(); protected static final String POLICY_MAPPINGS = Extension.policyMappings.getId(); protected static final String SUBJECT_ALTERNATIVE_NAME = Extension.subjectAlternativeName.getId(); protected static final String NAME_CONSTRAINTS = Extension.nameConstraints.getId(); protected static final String KEY_USAGE = Extension.keyUsage.getId(); protected static final String INHIBIT_ANY_POLICY = Extension.inhibitAnyPolicy.getId(); protected static final String ISSUING_DISTRIBUTION_POINT = Extension.issuingDistributionPoint.getId(); protected static final String DELTA_CRL_INDICATOR = Extension.deltaCRLIndicator.getId(); protected static final String POLICY_CONSTRAINTS = Extension.policyConstraints.getId(); protected static final String FRESHEST_CRL = Extension.freshestCRL.getId(); protected static final String CRL_DISTRIBUTION_POINTS = Extension.cRLDistributionPoints.getId(); protected static final String AUTHORITY_KEY_IDENTIFIER = Extension.authorityKeyIdentifier.getId(); protected static final String ANY_POLICY = "2.5.29.32.0"; protected static final String CRL_NUMBER = Extension.cRLNumber.getId(); /* * key usage bits */ protected static final int KEY_CERT_SIGN = 5; protected static final int CRL_SIGN = 6; protected static final String[] crlReasons = new String[]{ "unspecified", "keyCompromise", "cACompromise", "affiliationChanged", "superseded", "cessationOfOperation", "certificateHold", "unknown", "removeFromCRL", "privilegeWithdrawn", "aACompromise"}; static Collection findTargets(PKIXExtendedBuilderParameters paramsPKIX) throws CertPathBuilderException { PKIXExtendedParameters baseParams = paramsPKIX.getBaseParameters(); PKIXCertStoreSelector certSelect = baseParams.getTargetConstraints(); LinkedHashSet targets = new LinkedHashSet(); try { CertPathValidatorUtilities.findCertificates(targets, certSelect, baseParams.getCertificateStores()); CertPathValidatorUtilities.findCertificates(targets, certSelect, baseParams.getCertStores()); } catch (AnnotatedException e) { throw new ExtCertPathBuilderException("Error finding target certificate.", e); } if (!targets.isEmpty()) { return targets; } Certificate target = certSelect.getCertificate(); if (null == target) { throw new CertPathBuilderException("No certificate found matching targetConstraints."); } return Collections.singleton(target); } /** * Search the given Set of TrustAnchor's for one that is the * issuer of the given X509 certificate. Uses the default provider * for signature verification. * * @param cert the X509 certificate * @param trustAnchors a Set of TrustAnchor's * @return the TrustAnchorobject if found or * null if not. * @throws AnnotatedException if a TrustAnchor was found but the signature verification * on the given certificate has thrown an exception. */ protected static TrustAnchor findTrustAnchor( X509Certificate cert, Set trustAnchors) throws AnnotatedException { return findTrustAnchor(cert, trustAnchors, null); } /** * Search the given Set of TrustAnchor's for one that is the * issuer of the given X509 certificate. Uses the specified * provider for signature verification, or the default provider * if null. * * @param cert the X509 certificate * @param trustAnchors a Set of TrustAnchor's * @param sigProvider the provider to use for signature verification * @return the TrustAnchor object if found or * null if not. * @throws AnnotatedException if a TrustAnchor was found but the signature verification * on the given certificate has thrown an exception. */ protected static TrustAnchor findTrustAnchor( X509Certificate cert, Set trustAnchors, String sigProvider) throws AnnotatedException { TrustAnchor trust = null; PublicKey trustPublicKey = null; Exception invalidKeyEx = null; X509CertSelector certSelectX509 = new X509CertSelector(); final X500Principal certIssuerPrincipal = cert.getIssuerX500Principal(); try { certSelectX509.setSubject(certIssuerPrincipal.getEncoded()); } catch (IOException e) { throw new AnnotatedException(e.getMessage(), e); } X500Name certIssuerName = null; Iterator iter = trustAnchors.iterator(); while (iter.hasNext() && trust == null) { trust = (TrustAnchor)iter.next(); if (trust.getTrustedCert() != null) { if (certSelectX509.match(trust.getTrustedCert())) { trustPublicKey = trust.getTrustedCert().getPublicKey(); } else { trust = null; } } else if (trust.getCAName() != null && trust.getCAPublicKey() != null) { if (certIssuerName == null) { certIssuerName = X500Name.getInstance(certIssuerPrincipal.getEncoded()); } try { X500Name caName = X500Name.getInstance(new X500Principal(trust.getCAName()).getEncoded()); if (certIssuerName.equals(caName)) { trustPublicKey = trust.getCAPublicKey(); } else { trust = null; } } catch (IllegalArgumentException ex) { trust = null; } } else { trust = null; } if (trustPublicKey != null) { try { verifyX509Certificate(cert, trustPublicKey, sigProvider); } catch (Exception ex) { invalidKeyEx = ex; trust = null; trustPublicKey = null; } } } if (trust == null && invalidKeyEx != null) { throw new AnnotatedException("TrustAnchor found but certificate validation failed.", invalidKeyEx); } return trust; } static boolean isIssuerTrustAnchor( X509Certificate cert, Set trustAnchors, String sigProvider) throws AnnotatedException { try { return findTrustAnchor(cert, trustAnchors, sigProvider) != null; } catch (Exception e) { return false; } } static List getAdditionalStoresFromAltNames( byte[] issuerAlternativeName, Map altNameCertStoreMap) throws CertificateParsingException { // if in the IssuerAltName extension an URI // is given, add an additional X.509 store if (issuerAlternativeName == null) { return Collections.EMPTY_LIST; } GeneralNames issuerAltName = GeneralNames.getInstance(ASN1OctetString.getInstance(issuerAlternativeName).getOctets()); GeneralName[] names = issuerAltName.getNames(); List stores = new ArrayList(); for (int i = 0; i != names.length; i++) { GeneralName altName = names[i]; PKIXCertStore altStore = (PKIXCertStore)altNameCertStoreMap.get(altName); if (altStore != null) { stores.add(altStore); } } return stores; } protected static Date getValidityDate(PKIXExtendedParameters paramsPKIX, Date currentDate) { Date validityDate = paramsPKIX.getValidityDate(); return null == validityDate ? currentDate : validityDate; } protected static boolean isSelfIssued(X509Certificate cert) { return cert.getSubjectDN().equals(cert.getIssuerDN()); } /** * Extract the value of the given extension, if it exists. * * @param ext The extension object. * @param oid The object identifier to obtain. * @throws AnnotatedException if the extension cannot be read. */ protected static ASN1Primitive getExtensionValue(java.security.cert.X509Extension ext, String oid) throws AnnotatedException { byte[] bytes = ext.getExtensionValue(oid); return null == bytes ? null : getObject(oid, bytes); } private static ASN1Primitive getObject(String oid, byte[] ext) throws AnnotatedException { try { ASN1OctetString octs = ASN1OctetString.getInstance(ext); return ASN1Primitive.fromByteArray(octs.getOctets()); } catch (Exception e) { throw new AnnotatedException("exception processing extension " + oid, e); } } protected static AlgorithmIdentifier getAlgorithmIdentifier(PublicKey key) throws CertPathValidatorException { try { return SubjectPublicKeyInfo.getInstance(key.getEncoded()).getAlgorithm(); } catch (Exception e) { throw new ExtCertPathValidatorException("Subject public key cannot be decoded.", e); } } // crl checking // // policy checking // protected static final Set getQualifierSet(ASN1Sequence qualifiers) throws CertPathValidatorException { Set pq = new HashSet(); if (qualifiers == null) { return pq; } ByteArrayOutputStream bOut = new ByteArrayOutputStream(); ASN1OutputStream aOut = ASN1OutputStream.create(bOut); Enumeration e = qualifiers.getObjects(); while (e.hasMoreElements()) { try { aOut.writeObject((ASN1Encodable)e.nextElement()); pq.add(new PolicyQualifierInfo(bOut.toByteArray())); } catch (IOException ex) { throw new ExtCertPathValidatorException("Policy qualifier info cannot be decoded.", ex); } bOut.reset(); } return pq; } protected static PKIXPolicyNode removePolicyNode( PKIXPolicyNode validPolicyTree, List[] policyNodes, PKIXPolicyNode _node) { PKIXPolicyNode _parent = (PKIXPolicyNode)_node.getParent(); if (validPolicyTree == null) { return null; } if (_parent == null) { for (int j = 0; j < policyNodes.length; j++) { policyNodes[j] = new ArrayList(); } return null; } else { _parent.removeChild(_node); removePolicyNodeRecurse(policyNodes, _node); return validPolicyTree; } } private static void removePolicyNodeRecurse( List[] policyNodes, PKIXPolicyNode _node) { policyNodes[_node.getDepth()].remove(_node); if (_node.hasChildren()) { Iterator _iter = _node.getChildren(); while (_iter.hasNext()) { PKIXPolicyNode _child = (PKIXPolicyNode)_iter.next(); removePolicyNodeRecurse(policyNodes, _child); } } } protected static boolean processCertD1i( int index, List[] policyNodes, ASN1ObjectIdentifier pOid, Set pq) { List policyNodeVec = policyNodes[index - 1]; for (int j = 0; j < policyNodeVec.size(); j++) { PKIXPolicyNode node = (PKIXPolicyNode)policyNodeVec.get(j); Set expectedPolicies = node.getExpectedPolicies(); if (expectedPolicies.contains(pOid.getId())) { Set childExpectedPolicies = new HashSet(); childExpectedPolicies.add(pOid.getId()); PKIXPolicyNode child = new PKIXPolicyNode(new ArrayList(), index, childExpectedPolicies, node, pq, pOid.getId(), false); node.addChild(child); policyNodes[index].add(child); return true; } } return false; } protected static void processCertD1ii( int index, List[] policyNodes, ASN1ObjectIdentifier _poid, Set _pq) { List policyNodeVec = policyNodes[index - 1]; for (int j = 0; j < policyNodeVec.size(); j++) { PKIXPolicyNode _node = (PKIXPolicyNode)policyNodeVec.get(j); if (ANY_POLICY.equals(_node.getValidPolicy())) { Set _childExpectedPolicies = new HashSet(); _childExpectedPolicies.add(_poid.getId()); PKIXPolicyNode _child = new PKIXPolicyNode(new ArrayList(), index, _childExpectedPolicies, _node, _pq, _poid.getId(), false); _node.addChild(_child); policyNodes[index].add(_child); return; } } } protected static void prepareNextCertB1( int i, List[] policyNodes, String id_p, Map m_idp, X509Certificate cert ) throws AnnotatedException, CertPathValidatorException { 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 (ANY_POLICY.equals(node.getValidPolicy())) { Set pq = null; ASN1Sequence policies = null; try { policies = DERSequence.getInstance(getExtensionValue(cert, CERTIFICATE_POLICIES)); } catch (Exception e) { throw new AnnotatedException("Certificate policies cannot be decoded.", e); } Enumeration e = policies.getObjects(); while (e.hasMoreElements()) { PolicyInformation pinfo = null; try { pinfo = PolicyInformation.getInstance(e.nextElement()); } catch (Exception ex) { throw new AnnotatedException("Policy information cannot be decoded.", ex); } if (ANY_POLICY.equals(pinfo.getPolicyIdentifier().getId())) { try { pq = getQualifierSet(pinfo.getPolicyQualifiers()); } catch (CertPathValidatorException ex) { throw new ExtCertPathValidatorException( "Policy qualifier info set could not be built.", ex); } break; } } boolean ci = false; if (cert.getCriticalExtensionOIDs() != null) { ci = cert.getCriticalExtensionOIDs().contains(CERTIFICATE_POLICIES); } PKIXPolicyNode p_node = (PKIXPolicyNode)node.getParent(); if (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; } } } } protected static PKIXPolicyNode prepareNextCertB2( int i, List[] policyNodes, String id_p, PKIXPolicyNode validPolicyTree) { 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 = removePolicyNode(validPolicyTree, policyNodes, node2); if (validPolicyTree == null) { break; } } } } } } return validPolicyTree; } protected static boolean isAnyPolicy( Set policySet) { return policySet == null || policySet.contains(ANY_POLICY) || policySet.isEmpty(); } /** * Return a Collection of all certificates or attribute certificates found in the X509Store's * that are matching the certSelect criteriums. * * @param certs * a {@link LinkedHashSet} to which the certificates will be added. * @param certSelect * a {@link Selector} object that will be used to select the certificates * @param certStores * a List containing only {@link Store} objects. These are used to search for * certificates. * @return a Collection of all found {@link X509Certificate} May be empty but never * null. */ protected static void findCertificates(LinkedHashSet certs, PKIXCertStoreSelector certSelect, List certStores) throws AnnotatedException { Iterator iter = certStores.iterator(); while (iter.hasNext()) { Object obj = iter.next(); if (obj instanceof Store) { Store certStore = (Store)obj; try { certs.addAll(certStore.getMatches(certSelect)); } catch (StoreException e) { throw new AnnotatedException("Problem while picking certificates from X.509 store.", e); } } else { CertStore certStore = (CertStore)obj; try { certs.addAll(PKIXCertStoreSelector.getCertificates(certSelect, certStore)); } catch (CertStoreException e) { throw new AnnotatedException("Problem while picking certificates from certificate store.", e); } } } } static List getAdditionalStoresFromCRLDistributionPoint( CRLDistPoint crldp, Map namedCRLStoreMap, Date validDate, JcaJceHelper helper) throws AnnotatedException { if (null == crldp) { return Collections.EMPTY_LIST; } DistributionPoint dps[]; try { dps = crldp.getDistributionPoints(); } catch (Exception e) { throw new AnnotatedException("Distribution points could not be read.", e); } List stores = new ArrayList(); for (int i = 0; i < dps.length; i++) { DistributionPointName dpn = dps[i].getDistributionPoint(); // look for URIs in fullName if (dpn != null && dpn.getType() == DistributionPointName.FULL_NAME) { GeneralName[] genNames = GeneralNames.getInstance(dpn.getName()).getNames(); for (int j = 0; j < genNames.length; j++) { PKIXCRLStore store = (PKIXCRLStore)namedCRLStoreMap.get(genNames[j]); if (store != null) { stores.add(store); } } } } // if the named CRL store is empty, and we're told to check with CRLDP if (stores.isEmpty() && Properties.isOverrideSet("org.bouncycastle.x509.enableCRLDP")) { CertificateFactory certFact; try { certFact = helper.createCertificateFactory("X.509"); } catch (Exception e) { throw new AnnotatedException("cannot create certificate factory: " + e.getMessage(), e); } for (int i = 0; i < dps.length; i++) { DistributionPointName dpn = dps[i].getDistributionPoint(); // look for URIs in fullName if (dpn != null && dpn.getType() == DistributionPointName.FULL_NAME) { GeneralName[] genNames = GeneralNames.getInstance(dpn.getName()).getNames(); for (int j = 0; j < genNames.length; j++) { GeneralName name = genNames[i]; if (name.getTagNo() == GeneralName.uniformResourceIdentifier) { try { URI distributionPoint = new URI(((ASN1String)name.getName()).getString()); PKIXCRLStore store = CrlCache.getCrl(certFact, validDate, distributionPoint); if (store != null) { stores.add(store); } break; } catch (Exception e) { // ignore[] TODO: maybe log } } } } } } return stores; } /** * Add the CRL issuers from the cRLIssuer field of the distribution point or * from the certificate if not given to the issuer criterion of the * selector. ** The issuerPrincipals are a collection with a single * X500Name for X509Certificates. *
* @param dp The distribution point. * @param issuerPrincipals The issuers of the certificate or attribute * certificate which contains the distribution point. * @param selector The CRL selector. * @throws AnnotatedException if an exception occurs while processing. * @throws ClassCastException if issuerPrincipals does not * contain only X500Names. */ protected static void getCRLIssuersFromDistributionPoint( DistributionPoint dp, Collection issuerPrincipals, X509CRLSelector selector) throws AnnotatedException { List issuers = new ArrayList(); // indirect CRL if (dp.getCRLIssuer() != null) { GeneralName genNames[] = dp.getCRLIssuer().getNames(); // look for a DN for (int j = 0; j < genNames.length; j++) { if (genNames[j].getTagNo() == GeneralName.directoryName) { try { issuers.add(X500Name.getInstance(genNames[j].getName().toASN1Primitive().getEncoded())); } catch (IOException e) { throw new AnnotatedException( "CRL issuer information from distribution point cannot be decoded.", e); } } } } else { /* * certificate issuer is CRL issuer, distributionPoint field MUST be * present. */ if (dp.getDistributionPoint() == null) { throw new AnnotatedException( "CRL issuer is omitted from distribution point but no distributionPoint field present."); } // add and check issuer principals for (Iterator it = issuerPrincipals.iterator(); it.hasNext(); ) { issuers.add(it.next()); } } // TODO: is not found although this should correctly add the rel name. selector of Sun is buggy here or PKI test case is invalid // distributionPoint // if (dp.getDistributionPoint() != null) // { // // look for nameRelativeToCRLIssuer // if (dp.getDistributionPoint().getType() == DistributionPointName.NAME_RELATIVE_TO_CRL_ISSUER) // { // // append fragment to issuer, only one // // issuer can be there, if this is given // if (issuers.size() != 1) // { // throw new AnnotatedException( // "nameRelativeToCRLIssuer field is given but more than one CRL issuer is given."); // } // ASN1Encodable relName = dp.getDistributionPoint().getName(); // Iterator it = issuers.iterator(); // List issuersTemp = new ArrayList(issuers.size()); // while (it.hasNext()) // { // Enumeration e = null; // try // { // e = ASN1Sequence.getInstance( // new ASN1InputStream(((X500Principal) it.next()) // .getEncoded()).readObject()).getObjects(); // } // catch (IOException ex) // { // throw new AnnotatedException( // "Cannot decode CRL issuer information.", ex); // } // ASN1EncodableVector v = new ASN1EncodableVector(); // while (e.hasMoreElements()) // { // v.add((ASN1Encodable) e.nextElement()); // } // v.add(relName); // issuersTemp.add(new X500Principal(new DERSequence(v) // .getDEREncoded())); // } // issuers.clear(); // issuers.addAll(issuersTemp); // } // } Iterator it = issuers.iterator(); while (it.hasNext()) { try { selector.addIssuerName(((X500Name)it.next()).getEncoded()); } catch (IOException ex) { throw new AnnotatedException( "Cannot decode CRL issuer information.", ex); } } } private static BigInteger getSerialNumber(Object cert) { return ((X509Certificate)cert).getSerialNumber(); } protected static void getCertStatus( Date validDate, X509CRL crl, Object cert, CertStatus certStatus) throws AnnotatedException { boolean isIndirect; try { isIndirect = X509CRLObject.isIndirectCRL(crl); } catch (CRLException exception) { throw new AnnotatedException("Failed check for indirect CRL.", exception); } X509CRLEntry crl_entry; if (isIndirect) { crl_entry = crl.getRevokedCertificate(getSerialNumber(cert)); if (crl_entry == null) { return; } X500Principal certificateIssuer = ((X509CRLEntryObject)crl_entry).getCertificateIssuer(); X500Name certIssuer; if (certificateIssuer == null) { certIssuer = PrincipalUtils.getIssuerPrincipal(crl); } else { certIssuer = PrincipalUtils.getX500Name(certificateIssuer); } if (!PrincipalUtils.getEncodedIssuerPrincipal(cert).equals(certIssuer)) { return; } } else if (!PrincipalUtils.getEncodedIssuerPrincipal(cert).equals(PrincipalUtils.getIssuerPrincipal(crl))) { return; // not for our issuer, ignore } else { crl_entry = crl.getRevokedCertificate(getSerialNumber(cert)); if (crl_entry == null) { return; } } ASN1Enumerated reasonCode = null; if (crl_entry.hasExtensions()) { if (crl_entry.hasUnsupportedCriticalExtension()) { throw new AnnotatedException("CRL entry has unsupported critical extensions."); } try { reasonCode = ASN1Enumerated .getInstance(CertPathValidatorUtilities.getExtensionValue(crl_entry, Extension.reasonCode.getId())); } catch (Exception e) { throw new AnnotatedException("Reason code CRL entry extension could not be decoded.", e); } } int reasonCodeValue = (null == reasonCode) ? CRLReason.unspecified : reasonCode.intValueExact(); // for reason keyCompromise, caCompromise, aACompromise or unspecified if (!(validDate.getTime() < crl_entry.getRevocationDate().getTime()) || reasonCodeValue == CRLReason.unspecified || reasonCodeValue == CRLReason.keyCompromise || reasonCodeValue == CRLReason.cACompromise || reasonCodeValue == CRLReason.aACompromise) { // (i) or (j) certStatus.setCertStatus(reasonCodeValue); certStatus.setRevocationDate(crl_entry.getRevocationDate()); } } /** * Fetches delta CRLs according to RFC 3280 section 5.2.4. * * @param validityDate The date for which the delta CRLs must be valid. * @param completeCRL The complete CRL the delta CRL is for. * @return A Set of X509CRLs with delta CRLs. * @throws AnnotatedException if an exception occurs while picking the delta * CRLs. */ protected static Set getDeltaCRLs(Date validityDate, X509CRL completeCRL, List certStores, List pkixCrlStores, JcaJceHelper helper) throws AnnotatedException { X509CRLSelector baseDeltaSelect = new X509CRLSelector(); // 5.2.4 (a) try { baseDeltaSelect.addIssuerName(PrincipalUtils.getIssuerPrincipal(completeCRL).getEncoded()); } catch (IOException e) { throw new AnnotatedException("Cannot extract issuer from CRL.", e); } BigInteger completeCRLNumber = null; try { ASN1Primitive derObject = CertPathValidatorUtilities.getExtensionValue(completeCRL, CRL_NUMBER); if (derObject != null) { completeCRLNumber = ASN1Integer.getInstance(derObject).getPositiveValue(); } } catch (Exception e) { throw new AnnotatedException( "CRL number extension could not be extracted from CRL.", e); } // 5.2.4 (b) byte[] idp; try { idp = completeCRL.getExtensionValue(ISSUING_DISTRIBUTION_POINT); } catch (Exception e) { throw new AnnotatedException("Issuing distribution point extension value could not be read.", e); } // 5.2.4 (d) baseDeltaSelect.setMinCRLNumber(completeCRLNumber == null ? null : completeCRLNumber.add(BigInteger.valueOf(1))); PKIXCRLStoreSelector.Builder selBuilder = new PKIXCRLStoreSelector.Builder(baseDeltaSelect); selBuilder.setIssuingDistributionPoint(idp); selBuilder.setIssuingDistributionPointEnabled(true); // 5.2.4 (c) selBuilder.setMaxBaseCRLNumber(completeCRLNumber); PKIXCRLStoreSelector deltaSelect = selBuilder.build(); // find delta CRLs Set temp = PKIXCRLUtil.findCRLs(deltaSelect, validityDate, certStores, pkixCrlStores); // if the named CRL store is empty, and we're told to check with CRLDP if (temp.isEmpty() && Properties.isOverrideSet("org.bouncycastle.x509.enableCRLDP")) { CertificateFactory certFact; try { certFact = helper.createCertificateFactory("X.509"); } catch (Exception e) { throw new AnnotatedException("cannot create certificate factory: " + e.getMessage(), e); } CRLDistPoint id = CRLDistPoint.getInstance(idp); DistributionPoint[] dps = id.getDistributionPoints(); for (int i = 0; i < dps.length; i++) { DistributionPointName dpn = dps[i].getDistributionPoint(); // look for URIs in fullName if (dpn != null && dpn.getType() == DistributionPointName.FULL_NAME) { GeneralName[] genNames = GeneralNames.getInstance(dpn.getName()).getNames(); for (int j = 0; j < genNames.length; j++) { GeneralName name = genNames[i]; if (name.getTagNo() == GeneralName.uniformResourceIdentifier) { try { PKIXCRLStore store = CrlCache.getCrl(certFact, validityDate, new URI(((ASN1String)name.getName()).getString())); if (store != null) { temp = PKIXCRLUtil.findCRLs(deltaSelect, validityDate, Collections.EMPTY_LIST, Collections.singletonList(store)); } break; } catch (Exception e) { // ignore[] TODO: maybe log } } } } } } Set result = new HashSet(); for (Iterator it = temp.iterator(); it.hasNext(); ) { X509CRL crl = (X509CRL)it.next(); if (isDeltaCRL(crl)) { result.add(crl); } } return result; } private static boolean isDeltaCRL(X509CRL crl) { Set critical = crl.getCriticalExtensionOIDs(); if (critical == null) { return false; } return critical.contains(RFC3280CertPathUtilities.DELTA_CRL_INDICATOR); } /** * Fetches complete CRLs according to RFC 3280. * * @param dp The distribution point for which the complete CRL * @param cert The X509Certificate for * which the CRL should be searched. * @param currentDate The date for which the delta CRLs must be valid. * @param paramsPKIX The extended PKIX parameters. * @return A Set of X509CRLs with complete * CRLs. * @throws AnnotatedException if an exception occurs while picking the CRLs * or no CRLs are found. */ protected static Set getCompleteCRLs(PKIXCertRevocationCheckerParameters params, DistributionPoint dp, Object cert, PKIXExtendedParameters paramsPKIX, Date validityDate) throws AnnotatedException, RecoverableCertPathValidatorException { X509CRLSelector baseCrlSelect = new X509CRLSelector(); try { Set issuers = new HashSet(); issuers.add(PrincipalUtils.getEncodedIssuerPrincipal(cert)); CertPathValidatorUtilities.getCRLIssuersFromDistributionPoint(dp, issuers, baseCrlSelect); } catch (AnnotatedException e) { throw new AnnotatedException("Could not get issuer information from distribution point.", e); } if (cert instanceof X509Certificate) { baseCrlSelect.setCertificateChecking((X509Certificate)cert); } PKIXCRLStoreSelector crlSelect = new PKIXCRLStoreSelector.Builder(baseCrlSelect).setCompleteCRLEnabled(true) .build(); Set crls = PKIXCRLUtil.findCRLs(crlSelect, validityDate, paramsPKIX.getCertStores(), paramsPKIX.getCRLStores()); checkCRLsNotEmpty(params, crls, cert); return crls; } protected static Date getValidCertDateFromValidityModel(Date validityDate, int validityModel, CertPath certPath, int index) throws AnnotatedException { if (PKIXExtendedParameters.CHAIN_VALIDITY_MODEL != validityModel || index <= 0) { // use given signing/encryption/[] time (or current date) return validityDate; } X509Certificate issuedCert = (X509Certificate)certPath.getCertificates().get(index - 1); if (index - 1 == 0) { // use time when cert was issued, if available ASN1GeneralizedTime dateOfCertgen = null; try { byte[] extBytes = ((X509Certificate)certPath.getCertificates().get(index - 1)) .getExtensionValue(ISISMTTObjectIdentifiers.id_isismtt_at_dateOfCertGen.getId()); if (extBytes != null) { dateOfCertgen = ASN1GeneralizedTime.getInstance(ASN1Primitive.fromByteArray(extBytes)); } } catch (IOException e) { throw new AnnotatedException("Date of cert gen extension could not be read."); } catch (IllegalArgumentException e) { throw new AnnotatedException("Date of cert gen extension could not be read."); } if (dateOfCertgen != null) { try { return dateOfCertgen.getDate(); } catch (ParseException e) { throw new AnnotatedException("Date from date of cert gen extension could not be parsed.", e); } } } return issuedCert.getNotBefore(); } /** * Return the next working key inheriting DSA parameters if necessary. ** This methods inherits DSA parameters from the indexed certificate or * previous certificates in the certificate chain to the returned * PublicKey. The list is searched upwards, meaning the end * certificate is at position 0 and previous certificates are following. *
** If the indexed certificate does not contain a DSA key this method simply * returns the public key. If the DSA key already contains DSA parameters * the key is also only returned. *
* * @param certs The certification path. * @param index The index of the certificate which contains the public key * which should be extended with DSA parameters. * @return The public key of the certificate in list position * index extended with DSA parameters if applicable. * @throws AnnotatedException if DSA parameters cannot be inherited. */ protected static PublicKey getNextWorkingKey(List certs, int index, JcaJceHelper helper) throws CertPathValidatorException { Certificate cert = (Certificate)certs.get(index); PublicKey pubKey = cert.getPublicKey(); if (!(pubKey instanceof DSAPublicKey)) { return pubKey; } DSAPublicKey dsaPubKey = (DSAPublicKey)pubKey; if (dsaPubKey.getParams() != null) { return dsaPubKey; } for (int i = index + 1; i < certs.size(); i++) { X509Certificate parentCert = (X509Certificate)certs.get(i); pubKey = parentCert.getPublicKey(); if (!(pubKey instanceof DSAPublicKey)) { throw new CertPathValidatorException( "DSA parameters cannot be inherited from previous certificate."); } DSAPublicKey prevDSAPubKey = (DSAPublicKey)pubKey; if (prevDSAPubKey.getParams() == null) { continue; } DSAParams dsaParams = prevDSAPubKey.getParams(); DSAPublicKeySpec dsaPubKeySpec = new DSAPublicKeySpec( dsaPubKey.getY(), dsaParams.getP(), dsaParams.getQ(), dsaParams.getG()); try { KeyFactory keyFactory = helper.createKeyFactory("DSA"); return keyFactory.generatePublic(dsaPubKeySpec); } catch (Exception exception) { throw new RuntimeException(exception.getMessage()); } } throw new CertPathValidatorException("DSA parameters cannot be inherited from previous certificate."); } /** * Find the issuer certificates of a given certificate. * * @param cert The certificate for which an issuer should be found. * @return A Collection object containing the issuer * X509Certificates. Never null. * @throws AnnotatedException if an error occurs. */ static Collection findIssuerCerts( X509Certificate cert, List certStores, List pkixCertStores) throws AnnotatedException { X509CertSelector selector = new X509CertSelector(); try { selector.setSubject(PrincipalUtils.getIssuerPrincipal(cert).getEncoded()); } catch (Exception e) { throw new AnnotatedException( "Subject criteria for certificate selector to find issuer certificate could not be set.", e); } try { byte[] akiExtensionValue = cert.getExtensionValue(AUTHORITY_KEY_IDENTIFIER); if (akiExtensionValue != null) { ASN1OctetString aki = ASN1OctetString.getInstance(akiExtensionValue); byte[] authorityKeyIdentifier = AuthorityKeyIdentifier.getInstance(aki.getOctets()).getKeyIdentifier(); if (authorityKeyIdentifier != null) { selector.setSubjectKeyIdentifier(new DEROctetString(authorityKeyIdentifier).getEncoded()); } } } catch (Exception e) { // authority key identifier could not be retrieved from target cert, just search without it } PKIXCertStoreSelector certSelect = new PKIXCertStoreSelector.Builder(selector).build(); LinkedHashSet certs = new LinkedHashSet(); try { CertPathValidatorUtilities.findCertificates(certs, certSelect, certStores); CertPathValidatorUtilities.findCertificates(certs, certSelect, pkixCertStores); } catch (AnnotatedException e) { throw new AnnotatedException("Issuer certificate cannot be searched.", e); } // issuers cannot be verified because possible DSA inheritance parameters are missing return certs; } protected static void verifyX509Certificate(X509Certificate cert, PublicKey publicKey, String sigProvider) throws GeneralSecurityException { if (sigProvider == null) { cert.verify(publicKey); } else { cert.verify(publicKey, sigProvider); } } static void checkCRLsNotEmpty(PKIXCertRevocationCheckerParameters params, Set crls, Object cert) throws RecoverableCertPathValidatorException { if (crls.isEmpty()) { if (cert instanceof X509AttributeCertificate) { X509AttributeCertificate aCert = (X509AttributeCertificate)cert; throw new RecoverableCertPathValidatorException("No CRLs found for issuer \"" + aCert.getIssuer().getPrincipals()[0] + "\"", null, params.getCertPath(), params.getIndex()); } else { X509Certificate xCert = (X509Certificate)cert; throw new RecoverableCertPathValidatorException("No CRLs found for issuer \"" + RFC4519Style.INSTANCE.toString(PrincipalUtils.getIssuerPrincipal(xCert)) + "\"", null, params.getCertPath(), params.getIndex()); } } } }