Example usage for org.bouncycastle.asn1 ASN1Integer getInstance

List of usage examples for org.bouncycastle.asn1 ASN1Integer getInstance

Introduction

In this page you can find the example usage for org.bouncycastle.asn1 ASN1Integer getInstance.

Prototype

public static ASN1Integer getInstance(ASN1TaggedObject obj, boolean explicit) 

Source Link

Document

Return an Integer from a tagged object.

Usage

From source file:ca.trustpoint.m2m.M2mCertificateFactory.java

License:Apache License

/**
 * Parses the given ASN.1 sequence and return the corresponding {@link M2mCertificate
 * M2MCertificate} object./*from  w w w  . j a  va  2 s .  co m*/
 *
 * @param seq ASN.1 sequence containing TBS data.
 * @param cert A M2MCertificate object.
 * @throw InvalidKeyException if public key is invalid.
 * @throw IOException if parsing error.
 * @throw URISyntaxException if URI field is invalid.
 */
private void parseTbsCertificate(ASN1Sequence seq, M2mCertificate cert)
        throws InvalidKeyException, IOException, URISyntaxException {
    if (seq.size() < 2) {
        throw new IOException("no enough data for TBS certificate in sequence");
    }

    // Set tbsCertificate
    for (int i = 0; i < seq.size(); i++) {
        ASN1TaggedObject obj = (ASN1TaggedObject) seq.getObjectAt(i);
        TbsCertificateFields tag = TbsCertificateFields.getInstance(obj.getTagNo());

        switch (tag) {
        case SERIAL_NUMBER:
            ASN1OctetString serialNumber = ASN1OctetString.getInstance(obj, false);
            cert.setSerialNumber(serialNumber.getOctets());
            break;
        case CA_ALGORITHM:
            ASN1ObjectIdentifier cAAlgorithm = ASN1ObjectIdentifier.getInstance(obj, false);

            if (cert.getCaKeyDefinition() == null) {
                cert.setCaKeyDefinition(new KeyAlgorithmDefinition());
            }

            cert.getCaKeyDefinition().setAlgorithm(parseKeyAlgorithmDefinitionAlgorithm(cAAlgorithm));
            break;
        case CA_ALGORITHM_PARAMETERS:
            ASN1OctetString cAAlgParams = ASN1OctetString.getInstance(obj, false);

            if (cert.getCaKeyDefinition() == null) {
                cert.setCaKeyDefinition(new KeyAlgorithmDefinition());
            }

            cert.getCaKeyDefinition().setParameters(cAAlgParams.getOctets());
            break;
        case ISSUER:
            ASN1Sequence issuerSeq = ASN1Sequence.getInstance(obj, false);
            cert.setIssuer(parseEntityName(issuerSeq));
            break;
        case VALID_FROM:
            ASN1OctetString validFrom = ASN1OctetString.getInstance(obj, false);
            BigInteger dateTimeBInt = new BigInteger(validFrom.getOctets());

            // date in sequence is second, converts to millisecond for constructing Date
            long dateTime = dateTimeBInt.longValue() * 1000;

            cert.setValidFrom(new Date(dateTime));
            break;
        case VALID_DURATION:
            ASN1OctetString validDuration = ASN1OctetString.getInstance(obj, false);
            BigInteger duration = new BigInteger(validDuration.getOctets());

            cert.setValidDuration(new Integer(duration.intValue()));
            break;
        case SUBJECT:
            ASN1Sequence subjectSeq = ASN1Sequence.getInstance(obj, false);
            cert.setSubject(parseEntityName(subjectSeq));
            break;
        case PUBLIC_KEY_ALGORITHM:
            ASN1ObjectIdentifier pKAlgorithm = ASN1ObjectIdentifier.getInstance(obj, false);

            if (cert.getPublicKeyDefinition() == null) {
                cert.setPublicKeyDefinition(new KeyAlgorithmDefinition());
            }

            cert.getPublicKeyDefinition().setAlgorithm(parseKeyAlgorithmDefinitionAlgorithm(pKAlgorithm));
            break;
        case PUBLIC_KEY_ALGORITHM_PARAMETERS:
            ASN1OctetString pKAlgParams = ASN1OctetString.getInstance(obj, false);

            if (cert.getPublicKeyDefinition() == null) {
                cert.setPublicKeyDefinition(new KeyAlgorithmDefinition());
            }

            cert.getPublicKeyDefinition().setParameters(pKAlgParams.getOctets());
            break;
        case PUBLIC_KEY:
            ASN1OctetString pubKey = ASN1OctetString.getInstance(obj, false);
            byte[] rawPublicKey = pubKey.getOctets();

            cert.setIsPublicKeyCompressed(KeyConversionUtils.isCompressedEcPoint(rawPublicKey));

            PublicKey publicKey = KeyConversionUtils.convertRawBytestoEcPublicKey(rawPublicKey);
            cert.setPublicKey(publicKey);
            break;
        case AUTHORITY_KEY_ID:
            ASN1Sequence authKeyIdSeq = ASN1Sequence.getInstance(obj, false);
            cert.setAuthorityKeyIdentifier(parseAuthorityKeyIdentifier(authKeyIdSeq));
            break;
        case SUBJECT_KEY_ID:
            ASN1OctetString subjKeyId = ASN1OctetString.getInstance(obj, false);
            cert.setSubjectKeyIdentifier(subjKeyId.getOctets());
            break;
        case KEY_USAGE:
            ASN1OctetString keyUsageObj = ASN1OctetString.getInstance(obj, false);
            KeyUsage keyUsage = new KeyUsage(keyUsageObj.getEncoded());
            cert.setKeyUsage(keyUsage);
            break;
        case BASIC_CONSTRAINTS:
            ASN1Integer basicConstraints = ASN1Integer.getInstance(obj, false);
            cert.setBasicConstraints(basicConstraints.getValue().intValue());
            break;
        case CERTIFICATE_POLICY:
            ASN1ObjectIdentifier certPolicy = ASN1ObjectIdentifier.getInstance(obj, false);
            cert.setCertificatePolicy(certPolicy.getId());
            break;
        case SUBJECT_ALTERNATE_NAME:
            ASN1TaggedObject subjectAltNameObj = ASN1TaggedObject.getInstance(obj, true);
            cert.setSubjectAlternativeName(parseGeneralName(subjectAltNameObj));
            break;
        case ISSUER_ALTERNATE_NAME:
            ASN1TaggedObject issuerAltNameObj = ASN1TaggedObject.getInstance(obj, true);
            cert.setIssuerAlternativeName(parseGeneralName(issuerAltNameObj));
            break;
        case EXTENDED_KEY_USAGE:
            ASN1ObjectIdentifier extendedKeyUsage = ASN1ObjectIdentifier.getInstance(obj, false);
            cert.setExtendedKeyUsage(extendedKeyUsage.getId());
            break;
        case AUTHENTICATION_INFO_ACCESS_OCSP:
            DERIA5String authInfoAccessOCSPObj = DERIA5String.getInstance(obj, false);
            URI authInfoAccessOCSP = new URI(authInfoAccessOCSPObj.getString());
            cert.setAuthenticationInfoAccessOcsp(authInfoAccessOCSP);
            break;
        case CRL_DISTRIBUTION_POINT_URI:
            DERIA5String cRLDistribPointURIObj = DERIA5String.getInstance(obj, false);
            URI cRLDistribPointURI = new URI(cRLDistribPointURIObj.getString());
            cert.setCrlDistributionPointUri(cRLDistribPointURI);
            break;
        case EXTENSIONS:
            ASN1Sequence x509extensionsSeq = ASN1Sequence.getInstance(obj, false);
            parseX509extensions(x509extensionsSeq, cert);
            break;
        default:
            throw new IOException("unknow TBS certificate field number: " + tag.getTagNumber());
        }
    }
}

From source file:de.tsenger.animamea.asn1.AmECPublicKey.java

License:Open Source License

/** Returns prime modulus p
 * @return/*from   www  . j a v  a  2s  .c  o  m*/
 */
public BigInteger getP() {
    if (p == null)
        return null;
    ASN1Integer derInt = ASN1Integer.getInstance(p, false);
    return derInt.getPositiveValue();
}

From source file:de.tsenger.animamea.asn1.AmECPublicKey.java

License:Open Source License

/** Returns first coefficient a
 * @return//from  w ww . j  a v a  2  s  .  c o  m
 */
public BigInteger getA() {
    if (a == null)
        return null;
    ASN1Integer derInt = ASN1Integer.getInstance(a, false);
    return derInt.getPositiveValue();
}

From source file:de.tsenger.animamea.asn1.AmECPublicKey.java

License:Open Source License

/** Returns second coefficient b
 * @return/*from  www.  j  a  v a  2  s.c  o m*/
 */
public BigInteger getB() {
    if (b == null)
        return null;
    ASN1Integer derInt = ASN1Integer.getInstance(b, false);
    return derInt.getPositiveValue();
}

From source file:de.tsenger.animamea.asn1.AmECPublicKey.java

License:Open Source License

/** Returns order of the base point r
 * @return/* w w  w  . ja  va  2s .  c  o m*/
 */
public BigInteger getR() {
    if (r == null)
        return null;
    ASN1Integer derInt = ASN1Integer.getInstance(r, false);
    return derInt.getPositiveValue();
}

From source file:de.tsenger.animamea.asn1.AmECPublicKey.java

License:Open Source License

/** Returns cofactor f
 * @return/*  ww w .  j a  v a2s .c o  m*/
 */
public BigInteger getF() {
    if (f == null)
        return null;
    ASN1Integer derInt = ASN1Integer.getInstance(f, false);
    return derInt.getPositiveValue();
}

From source file:eu.emi.security.authn.x509.helpers.pkipath.bc.FixedBCPKIXCertPathReviewer.java

License:Open Source License

private void checkPolicy() {
    ////from   w  w  w.j  ava 2 s  .co m
    // 6.1.1 Inputs
    //

    // c) Initial Policy Set

    Set userInitialPolicySet = pkixParams.getInitialPolicies();

    // e) f) g) are part of pkixParams

    //
    // 6.1.2 Initialization
    //

    // a) valid policy tree

    List[] policyNodes = new ArrayList[n + 1];
    for (int j = 0; j < policyNodes.length; j++) {
        policyNodes[j] = new ArrayList();
    }

    Set policySet = new HashSet();

    policySet.add(ANY_POLICY);

    PKIXPolicyNode validPolicyTree = new PKIXPolicyNode(new ArrayList(), 0, policySet, null, new HashSet(),
            ANY_POLICY, false);

    policyNodes[0].add(validPolicyTree);

    // d) explicit policy

    int explicitPolicy;
    if (pkixParams.isExplicitPolicyRequired()) {
        explicitPolicy = 0;
    } else {
        explicitPolicy = n + 1;
    }

    // e) inhibit any policy

    int inhibitAnyPolicy;
    if (pkixParams.isAnyPolicyInhibited()) {
        inhibitAnyPolicy = 0;
    } else {
        inhibitAnyPolicy = n + 1;
    }

    // f) policy mapping

    int policyMapping;
    if (pkixParams.isPolicyMappingInhibited()) {
        policyMapping = 0;
    } else {
        policyMapping = n + 1;
    }

    Set acceptablePolicies = null;

    //
    // 6.1.3 Basic Certificate processing
    //

    X509Certificate cert = null;
    int index;
    int i;

    try {
        for (index = certs.size() - 1; index >= 0; index--) {
            // i as defined in the algorithm description
            i = n - index;

            // set certificate to be checked in this round
            cert = (X509Certificate) certs.get(index);

            // d) process policy information

            ASN1Sequence certPolicies;
            try {
                certPolicies = (ASN1Sequence) getExtensionValue(cert, CERTIFICATE_POLICIES);
            } catch (AnnotatedException ae) {
                ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.policyExtError");
                throw new CertPathReviewerException(msg, ae, 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 (!ANY_POLICY.equals(pOid.getId())) {
                        Set pq;
                        try {
                            pq = getQualifierSet(pInfo.getPolicyQualifiers());
                        } catch (CertPathValidatorException cpve) {
                            ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,
                                    "CertPathReviewer.policyQualifierError");
                            throw new CertPathReviewerException(msg, cpve, certPath, index);
                        }

                        boolean match = processCertD1i(i, policyNodes, pOid, pq);

                        if (!match) {
                            processCertD1ii(i, policyNodes, pOid, pq);
                        }
                    }
                }

                if (acceptablePolicies == null || acceptablePolicies.contains(ANY_POLICY)) {
                    acceptablePolicies = 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 = t1;
                }

                // d) 2)

                if ((inhibitAnyPolicy > 0) || ((i < n) && isSelfIssued(cert))) {
                    e = certPolicies.getObjects();

                    while (e.hasMoreElements()) {
                        PolicyInformation pInfo = PolicyInformation.getInstance(e.nextElement());

                        if (ANY_POLICY.equals(pInfo.getPolicyIdentifier().getId())) {
                            Set _apq;
                            try {
                                _apq = getQualifierSet(pInfo.getPolicyQualifiers());
                            } catch (CertPathValidatorException cpve) {
                                ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,
                                        "CertPathReviewer.policyQualifierError");
                                throw new CertPathReviewerException(msg, cpve, certPath, index);
                            }
                            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;
                        }
                    }
                }

                //
                // (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 = removePolicyNode(validPolicyTree, policyNodes, node);
                            if (validPolicyTree == null) {
                                break;
                            }
                        }
                    }
                }

                //
                // d (4)
                //
                Set criticalExtensionOids = cert.getCriticalExtensionOIDs();

                if (criticalExtensionOids != null) {
                    boolean critical = criticalExtensionOids.contains(CERTIFICATE_POLICIES);

                    List nodes = policyNodes[i];
                    for (int j = 0; j < nodes.size(); j++) {
                        PKIXPolicyNode node = (PKIXPolicyNode) nodes.get(j);
                        node.setCritical(critical);
                    }
                }

            }

            // e)

            if (certPolicies == null) {
                validPolicyTree = null;
            }

            // f)

            if (explicitPolicy <= 0 && validPolicyTree == null) {
                ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.noValidPolicyTree");
                throw new CertPathReviewerException(msg);
            }

            //
            // 6.1.4 preparation for next Certificate
            //

            if (i != n) {

                // a)

                ASN1Primitive pm;
                try {
                    pm = getExtensionValue(cert, POLICY_MAPPINGS);
                } catch (AnnotatedException ae) {
                    ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.policyMapExtError");
                    throw new CertPathReviewerException(msg, ae, certPath, index);
                }

                if (pm != null) {
                    ASN1Sequence mappings = (ASN1Sequence) pm;
                    for (int j = 0; j < mappings.size(); j++) {
                        ASN1Sequence mapping = (ASN1Sequence) mappings.getObjectAt(j);
                        ASN1ObjectIdentifier ip_id = (ASN1ObjectIdentifier) mapping.getObjectAt(0);
                        ASN1ObjectIdentifier sp_id = (ASN1ObjectIdentifier) mapping.getObjectAt(1);
                        if (ANY_POLICY.equals(ip_id.getId())) {
                            ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,
                                    "CertPathReviewer.invalidPolicyMapping");
                            throw new CertPathReviewerException(msg, certPath, index);
                        }
                        if (ANY_POLICY.equals(sp_id.getId())) {
                            ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,
                                    "CertPathReviewer.invalidPolicyMapping");
                            throw new CertPathReviewerException(msg, certPath, index);
                        }
                    }
                }

                // b)

                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) {
                            try {
                                prepareNextCertB1(i, policyNodes, id_p, m_idp, cert);
                            } catch (AnnotatedException ae) {
                                // error processing certificate policies extension
                                ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,
                                        "CertPathReviewer.policyExtError");
                                throw new CertPathReviewerException(msg, ae, certPath, index);
                            } catch (CertPathValidatorException cpve) {
                                // error building qualifier set
                                ErrorBundle msg = new ErrorBundle(RESOURCE_NAME,
                                        "CertPathReviewer.policyQualifierError");
                                throw new CertPathReviewerException(msg, cpve, certPath, index);
                            }

                            //
                            // (2)
                            // 
                        } else if (policyMapping <= 0) {
                            validPolicyTree = prepareNextCertB2(i, policyNodes, id_p, validPolicyTree);
                        }

                    }
                }

                //
                // h)
                //

                if (!isSelfIssued(cert)) {

                    // (1)
                    if (explicitPolicy != 0) {
                        explicitPolicy--;
                    }

                    // (2)
                    if (policyMapping != 0) {
                        policyMapping--;
                    }

                    // (3)
                    if (inhibitAnyPolicy != 0) {
                        inhibitAnyPolicy--;
                    }

                }

                //
                // i)
                //

                try {
                    ASN1Sequence pc = (ASN1Sequence) getExtensionValue(cert, POLICY_CONSTRAINTS);
                    if (pc != null) {
                        Enumeration policyConstraints = pc.getObjects();

                        while (policyConstraints.hasMoreElements()) {
                            ASN1TaggedObject constraint = (ASN1TaggedObject) policyConstraints.nextElement();
                            int tmpInt;

                            switch (constraint.getTagNo()) {
                            case 0:
                                tmpInt = ASN1Integer.getInstance(constraint, false).getValue().intValue();
                                if (tmpInt < explicitPolicy) {
                                    explicitPolicy = tmpInt;
                                }
                                break;
                            case 1:
                                tmpInt = ASN1Integer.getInstance(constraint, false).getValue().intValue();
                                if (tmpInt < policyMapping) {
                                    policyMapping = tmpInt;
                                }
                                break;
                            }
                        }
                    }
                } catch (AnnotatedException ae) {
                    ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.policyConstExtError");
                    throw new CertPathReviewerException(msg, certPath, index);
                }

                //
                // j)
                //

                try {
                    ASN1Integer iap = (ASN1Integer) getExtensionValue(cert, INHIBIT_ANY_POLICY);

                    if (iap != null) {
                        int _inhibitAnyPolicy = iap.getValue().intValue();

                        if (_inhibitAnyPolicy < inhibitAnyPolicy) {
                            inhibitAnyPolicy = _inhibitAnyPolicy;
                        }
                    }
                } catch (AnnotatedException ae) {
                    ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.policyInhibitExtError");
                    throw new CertPathReviewerException(msg, certPath, index);
                }
            }

        }

        //
        // 6.1.5 Wrap up
        //

        //
        // a)
        //

        if (!isSelfIssued(cert) && explicitPolicy > 0) {
            explicitPolicy--;
        }

        //
        // b)
        //

        try {
            ASN1Sequence pc = (ASN1Sequence) getExtensionValue(cert, POLICY_CONSTRAINTS);
            if (pc != null) {
                Enumeration policyConstraints = pc.getObjects();

                while (policyConstraints.hasMoreElements()) {
                    ASN1TaggedObject constraint = (ASN1TaggedObject) policyConstraints.nextElement();
                    switch (constraint.getTagNo()) {
                    case 0:
                        int tmpInt = ASN1Integer.getInstance(constraint, false).getValue().intValue();
                        if (tmpInt == 0) {
                            explicitPolicy = 0;
                        }
                        break;
                    }
                }
            }
        } catch (AnnotatedException e) {
            ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.policyConstExtError");
            throw new CertPathReviewerException(msg, certPath, index);
        }

        //
        // (g)
        //
        PKIXPolicyNode intersection;

        //
        // (g) (i)
        //
        if (validPolicyTree == null) {
            if (pkixParams.isExplicitPolicyRequired()) {
                ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.explicitPolicy");
                throw new CertPathReviewerException(msg, certPath, index);
            }
            intersection = null;
        } else if (isAnyPolicy(userInitialPolicySet)) // (g) (ii)
        {
            if (pkixParams.isExplicitPolicyRequired()) {
                if (acceptablePolicies.isEmpty()) {
                    ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.explicitPolicy");
                    throw new CertPathReviewerException(msg, 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 (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 = 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 (ANY_POLICY.equals(_node.getValidPolicy())) {
                        Iterator _iter = _node.getChildren();
                        while (_iter.hasNext()) {
                            PKIXPolicyNode _c_node = (PKIXPolicyNode) _iter.next();
                            if (!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 = 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 = removePolicyNode(validPolicyTree, policyNodes, node);
                        }
                    }
                }
            }

            intersection = validPolicyTree;
        }

        if ((explicitPolicy <= 0) && (intersection == null)) {
            ErrorBundle msg = new ErrorBundle(RESOURCE_NAME, "CertPathReviewer.invalidPolicy");
            throw new CertPathReviewerException(msg);
        }

        validPolicyTree = intersection;
    } catch (CertPathReviewerException cpre) {
        addError(cpre.getErrorMessage(), cpre.getIndex());
        validPolicyTree = null;
    }
}