Examples with DERTaggedObject org.bouncycastle.asn1.DERTaggedObject used on opensource projects

Example 26 with DERTaggedObject

use of org.bouncycastle.asn1.DERTaggedObject in project jruby-openssl by jruby.

the class X509Utils method checkIfIssuedBy.

/**
 * c: X509_check_issued
 */
public static int checkIfIssuedBy(final X509AuxCertificate issuer, final X509AuxCertificate subject) throws IOException {
    if (!issuer.getSubjectX500Principal().equals(subject.getIssuerX500Principal())) {
        return V_ERR_SUBJECT_ISSUER_MISMATCH;
    }
    if (subject.getExtensionValue("2.5.29.35") != null) {
        // authorityKeyID
        // I hate ASN1 and DER
        Object key = get(subject.getExtensionValue("2.5.29.35"));
        if (!(key instanceof ASN1Sequence))
            key = get((DEROctetString) key);
        final ASN1Sequence seq = (ASN1Sequence) key;
        final AuthorityKeyIdentifier sakid;
        if (seq.size() == 1 && (seq.getObjectAt(0) instanceof ASN1OctetString)) {
            sakid = AuthorityKeyIdentifier.getInstance(new DLSequence(new DERTaggedObject(0, seq.getObjectAt(0))));
        } else {
            sakid = AuthorityKeyIdentifier.getInstance(seq);
        }
        if (sakid.getKeyIdentifier() != null) {
            if (issuer.getExtensionValue("2.5.29.14") != null) {
                DEROctetString der = (DEROctetString) get(issuer.getExtensionValue("2.5.29.14"));
                SubjectKeyIdentifier iskid = SubjectKeyIdentifier.getInstance(get(der.getOctets()));
                if (iskid.getKeyIdentifier() != null) {
                    if (!Arrays.equals(sakid.getKeyIdentifier(), iskid.getKeyIdentifier())) {
                        return V_ERR_AKID_SKID_MISMATCH;
                    }
                }
            }
        }
        final BigInteger serialNumber = sakid.getAuthorityCertSerialNumber();
        if (serialNumber != null && !serialNumber.equals(issuer.getSerialNumber())) {
            return V_ERR_AKID_ISSUER_SERIAL_MISMATCH;
        }
        if (sakid.getAuthorityCertIssuer() != null) {
            GeneralName[] gens = sakid.getAuthorityCertIssuer().getNames();
            X500Name x500Name = null;
            for (int i = 0; i < gens.length; i++) {
                if (gens[i].getTagNo() == GeneralName.directoryName) {
                    ASN1Encodable name = gens[i].getName();
                    if (name instanceof X500Name) {
                        x500Name = (X500Name) name;
                    } else if (name instanceof ASN1Sequence) {
                        x500Name = X500Name.getInstance((ASN1Sequence) name);
                    } else {
                        throw new RuntimeException("unknown name type: " + name);
                    }
                    break;
                }
            }
            if (x500Name != null) {
                if (!new Name(x500Name).equalTo(issuer.getIssuerX500Principal())) {
                    return V_ERR_AKID_ISSUER_SERIAL_MISMATCH;
                }
            }
        }
    }
    final boolean[] keyUsage = issuer.getKeyUsage();
    if (subject.getExtensionValue("1.3.6.1.5.5.7.1.14") != null) {
        if (keyUsage != null && !keyUsage[0]) {
            // KU_DIGITAL_SIGNATURE
            return V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE;
        }
    } else if (keyUsage != null && !keyUsage[5]) {
        // KU_KEY_CERT_SIGN
        return V_ERR_KEYUSAGE_NO_CERTSIGN;
    }
    return V_OK;
}

Example 27 with DERTaggedObject

use of org.bouncycastle.asn1.DERTaggedObject in project certmgr by hdecarne.

the class IPAddressName method encode.

@Override
public ASN1Encodable encode() throws IOException {
    byte[] addressBytes = this.address.getAddress();
    byte[] netmaskBytes = (this.netmask != null ? this.netmask.getAddress() : new byte[0]);
    byte[] encodedBytes = new byte[addressBytes.length + netmaskBytes.length];
    System.arraycopy(addressBytes, 0, encodedBytes, 0, addressBytes.length);
    System.arraycopy(netmaskBytes, 0, encodedBytes, addressBytes.length, netmaskBytes.length);
    return new DERTaggedObject(false, getType().value(), new DEROctetString(encodedBytes));
}

Example 28 with DERTaggedObject

use of org.bouncycastle.asn1.DERTaggedObject in project certmgr by hdecarne.

the class AuthorityKeyIdentifierExtensionData method encode.

@Override
public ASN1Encodable encode() throws IOException {
    ASN1EncodableVector sequence = new ASN1EncodableVector();
    byte[] checkedKeyIdentifier = this.keyIdentifier;
    if (checkedKeyIdentifier != null) {
        sequence.add(new DERTaggedObject(false, 0, new DEROctetString(checkedKeyIdentifier)));
    }
    GeneralNames checkedAuthorityCertIssuer = this.authorityCertIssuer;
    if (checkedAuthorityCertIssuer != null) {
        sequence.add(new DERTaggedObject(false, 1, checkedAuthorityCertIssuer.encode()));
    }
    BigInteger checkedAuthorityCertSerialNumber = this.authorityCertSerialNumber;
    if (checkedAuthorityCertSerialNumber != null) {
        sequence.add(new DERTaggedObject(false, 2, new ASN1Integer(checkedAuthorityCertSerialNumber)));
    }
    return new DERSequence(sequence);
}

Example 29 with DERTaggedObject

use of org.bouncycastle.asn1.DERTaggedObject in project xipki by xipki.

the class XmlX509Certprofile method getExtensions.

@Override
public ExtensionValues getExtensions(Map<ASN1ObjectIdentifier, ExtensionControl> extensionOccurences, X500Name requestedSubject, X500Name grantedSubject, Extensions requestedExtensions, Date notBefore, Date notAfter, PublicCaInfo caInfo) throws CertprofileException, BadCertTemplateException {
    ExtensionValues values = new ExtensionValues();
    if (CollectionUtil.isEmpty(extensionOccurences)) {
        return values;
    }
    ParamUtil.requireNonNull("requestedSubject", requestedSubject);
    ParamUtil.requireNonNull("notBefore", notBefore);
    ParamUtil.requireNonNull("notAfter", notAfter);
    Set<ASN1ObjectIdentifier> occurences = new HashSet<>(extensionOccurences.keySet());
    // AuthorityKeyIdentifier
    // processed by the CA
    // SubjectKeyIdentifier
    // processed by the CA
    // KeyUsage
    // processed by the CA
    // CertificatePolicies
    ASN1ObjectIdentifier type = Extension.certificatePolicies;
    if (certificatePolicies != null) {
        if (occurences.remove(type)) {
            values.addExtension(type, certificatePolicies);
        }
    }
    // Policy Mappings
    type = Extension.policyMappings;
    if (policyMappings != null) {
        if (occurences.remove(type)) {
            values.addExtension(type, policyMappings);
        }
    }
    // SubjectAltName
    type = Extension.subjectAlternativeName;
    if (occurences.contains(type)) {
        GeneralNames genNames = createRequestedSubjectAltNames(requestedSubject, grantedSubject, requestedExtensions);
        if (genNames != null) {
            ExtensionValue value = new ExtensionValue(extensionControls.get(type).isCritical(), genNames);
            values.addExtension(type, value);
            occurences.remove(type);
        }
    }
    // IssuerAltName
    // processed by the CA
    // Subject Directory Attributes
    type = Extension.subjectDirectoryAttributes;
    if (occurences.contains(type) && subjectDirAttrsControl != null) {
        Extension extension = (requestedExtensions == null) ? null : requestedExtensions.getExtension(type);
        if (extension == null) {
            throw new BadCertTemplateException("no SubjectDirecotryAttributes extension is contained in the request");
        }
        ASN1GeneralizedTime dateOfBirth = null;
        String placeOfBirth = null;
        String gender = null;
        List<String> countryOfCitizenshipList = new LinkedList<>();
        List<String> countryOfResidenceList = new LinkedList<>();
        Map<ASN1ObjectIdentifier, List<ASN1Encodable>> otherAttrs = new HashMap<>();
        Vector<?> reqSubDirAttrs = SubjectDirectoryAttributes.getInstance(extension.getParsedValue()).getAttributes();
        final int n = reqSubDirAttrs.size();
        for (int i = 0; i < n; i++) {
            Attribute attr = (Attribute) reqSubDirAttrs.get(i);
            ASN1ObjectIdentifier attrType = attr.getAttrType();
            ASN1Encodable attrVal = attr.getAttributeValues()[0];
            if (ObjectIdentifiers.DN_DATE_OF_BIRTH.equals(attrType)) {
                dateOfBirth = ASN1GeneralizedTime.getInstance(attrVal);
            } else if (ObjectIdentifiers.DN_PLACE_OF_BIRTH.equals(attrType)) {
                placeOfBirth = DirectoryString.getInstance(attrVal).getString();
            } else if (ObjectIdentifiers.DN_GENDER.equals(attrType)) {
                gender = DERPrintableString.getInstance(attrVal).getString();
            } else if (ObjectIdentifiers.DN_COUNTRY_OF_CITIZENSHIP.equals(attrType)) {
                String country = DERPrintableString.getInstance(attrVal).getString();
                countryOfCitizenshipList.add(country);
            } else if (ObjectIdentifiers.DN_COUNTRY_OF_RESIDENCE.equals(attrType)) {
                String country = DERPrintableString.getInstance(attrVal).getString();
                countryOfResidenceList.add(country);
            } else {
                List<ASN1Encodable> otherAttrVals = otherAttrs.get(attrType);
                if (otherAttrVals == null) {
                    otherAttrVals = new LinkedList<>();
                    otherAttrs.put(attrType, otherAttrVals);
                }
                otherAttrVals.add(attrVal);
            }
        }
        Vector<Attribute> attrs = new Vector<>();
        for (ASN1ObjectIdentifier attrType : subjectDirAttrsControl.getTypes()) {
            if (ObjectIdentifiers.DN_DATE_OF_BIRTH.equals(attrType)) {
                if (dateOfBirth != null) {
                    String timeStirng = dateOfBirth.getTimeString();
                    if (!SubjectDnSpec.PATTERN_DATE_OF_BIRTH.matcher(timeStirng).matches()) {
                        throw new BadCertTemplateException("invalid dateOfBirth " + timeStirng);
                    }
                    attrs.add(new Attribute(attrType, new DERSet(dateOfBirth)));
                    continue;
                }
            } else if (ObjectIdentifiers.DN_PLACE_OF_BIRTH.equals(attrType)) {
                if (placeOfBirth != null) {
                    ASN1Encodable attrVal = new DERUTF8String(placeOfBirth);
                    attrs.add(new Attribute(attrType, new DERSet(attrVal)));
                    continue;
                }
            } else if (ObjectIdentifiers.DN_GENDER.equals(attrType)) {
                if (gender != null && !gender.isEmpty()) {
                    char ch = gender.charAt(0);
                    if (!(gender.length() == 1 && (ch == 'f' || ch == 'F' || ch == 'm' || ch == 'M'))) {
                        throw new BadCertTemplateException("invalid gender " + gender);
                    }
                    ASN1Encodable attrVal = new DERPrintableString(gender);
                    attrs.add(new Attribute(attrType, new DERSet(attrVal)));
                    continue;
                }
            } else if (ObjectIdentifiers.DN_COUNTRY_OF_CITIZENSHIP.equals(attrType)) {
                if (!countryOfCitizenshipList.isEmpty()) {
                    for (String country : countryOfCitizenshipList) {
                        if (!SubjectDnSpec.isValidCountryAreaCode(country)) {
                            throw new BadCertTemplateException("invalid countryOfCitizenship code " + country);
                        }
                        ASN1Encodable attrVal = new DERPrintableString(country);
                        attrs.add(new Attribute(attrType, new DERSet(attrVal)));
                    }
                    continue;
                }
            } else if (ObjectIdentifiers.DN_COUNTRY_OF_RESIDENCE.equals(attrType)) {
                if (!countryOfResidenceList.isEmpty()) {
                    for (String country : countryOfResidenceList) {
                        if (!SubjectDnSpec.isValidCountryAreaCode(country)) {
                            throw new BadCertTemplateException("invalid countryOfResidence code " + country);
                        }
                        ASN1Encodable attrVal = new DERPrintableString(country);
                        attrs.add(new Attribute(attrType, new DERSet(attrVal)));
                    }
                    continue;
                }
            } else if (otherAttrs.containsKey(attrType)) {
                for (ASN1Encodable attrVal : otherAttrs.get(attrType)) {
                    attrs.add(new Attribute(attrType, new DERSet(attrVal)));
                }
                continue;
            }
            throw new BadCertTemplateException("could not process type " + attrType.getId() + " in extension SubjectDirectoryAttributes");
        }
        SubjectDirectoryAttributes subjDirAttrs = new SubjectDirectoryAttributes(attrs);
        ExtensionValue extValue = new ExtensionValue(extensionControls.get(type).isCritical(), subjDirAttrs);
        values.addExtension(type, extValue);
        occurences.remove(type);
    }
    // Basic Constraints
    // processed by the CA
    // Name Constraints
    type = Extension.nameConstraints;
    if (nameConstraints != null) {
        if (occurences.remove(type)) {
            values.addExtension(type, nameConstraints);
        }
    }
    // PolicyConstrains
    type = Extension.policyConstraints;
    if (policyConstraints != null) {
        if (occurences.remove(type)) {
            values.addExtension(type, policyConstraints);
        }
    }
    // ExtendedKeyUsage
    // processed by CA
    // CRL Distribution Points
    // processed by the CA
    // Inhibit anyPolicy
    type = Extension.inhibitAnyPolicy;
    if (inhibitAnyPolicy != null) {
        if (occurences.remove(type)) {
            values.addExtension(type, inhibitAnyPolicy);
        }
    }
    // Freshest CRL
    // processed by the CA
    // Authority Information Access
    // processed by the CA
    // Subject Information Access
    // processed by the CA
    // Admission
    type = ObjectIdentifiers.id_extension_admission;
    if (occurences.contains(type) && admission != null) {
        if (admission.isInputFromRequestRequired()) {
            Extension extension = (requestedExtensions == null) ? null : requestedExtensions.getExtension(type);
            if (extension == null) {
                throw new BadCertTemplateException("No Admission extension is contained in the request");
            }
            Admissions[] reqAdmissions = org.bouncycastle.asn1.isismtt.x509.AdmissionSyntax.getInstance(extension.getParsedValue()).getContentsOfAdmissions();
            final int n = reqAdmissions.length;
            List<List<String>> reqRegNumsList = new ArrayList<>(n);
            for (int i = 0; i < n; i++) {
                Admissions reqAdmission = reqAdmissions[i];
                ProfessionInfo[] reqPis = reqAdmission.getProfessionInfos();
                List<String> reqNums = new ArrayList<>(reqPis.length);
                reqRegNumsList.add(reqNums);
                for (ProfessionInfo reqPi : reqPis) {
                    String reqNum = reqPi.getRegistrationNumber();
                    reqNums.add(reqNum);
                }
            }
            values.addExtension(type, admission.getExtensionValue(reqRegNumsList));
            occurences.remove(type);
        } else {
            values.addExtension(type, admission.getExtensionValue(null));
            occurences.remove(type);
        }
    }
    // OCSP Nocheck
    // processed by the CA
    // restriction
    type = ObjectIdentifiers.id_extension_restriction;
    if (restriction != null) {
        if (occurences.remove(type)) {
            values.addExtension(type, restriction);
        }
    }
    // AdditionalInformation
    type = ObjectIdentifiers.id_extension_additionalInformation;
    if (additionalInformation != null) {
        if (occurences.remove(type)) {
            values.addExtension(type, additionalInformation);
        }
    }
    // ValidityModel
    type = ObjectIdentifiers.id_extension_validityModel;
    if (validityModel != null) {
        if (occurences.remove(type)) {
            values.addExtension(type, validityModel);
        }
    }
    // PrivateKeyUsagePeriod
    type = Extension.privateKeyUsagePeriod;
    if (occurences.contains(type)) {
        Date tmpNotAfter;
        if (privateKeyUsagePeriod == null) {
            tmpNotAfter = notAfter;
        } else {
            tmpNotAfter = privateKeyUsagePeriod.add(notBefore);
            if (tmpNotAfter.after(notAfter)) {
                tmpNotAfter = notAfter;
            }
        }
        ASN1EncodableVector vec = new ASN1EncodableVector();
        vec.add(new DERTaggedObject(false, 0, new DERGeneralizedTime(notBefore)));
        vec.add(new DERTaggedObject(false, 1, new DERGeneralizedTime(tmpNotAfter)));
        ExtensionValue extValue = new ExtensionValue(extensionControls.get(type).isCritical(), new DERSequence(vec));
        values.addExtension(type, extValue);
        occurences.remove(type);
    }
    // QCStatements
    type = Extension.qCStatements;
    if (occurences.contains(type) && (qcStatments != null || qcStatementsOption != null)) {
        if (qcStatments != null) {
            values.addExtension(type, qcStatments);
            occurences.remove(type);
        } else if (requestedExtensions != null && qcStatementsOption != null) {
            // extract the euLimit data from request
            Extension extension = requestedExtensions.getExtension(type);
            if (extension == null) {
                throw new BadCertTemplateException("No QCStatement extension is contained in the request");
            }
            ASN1Sequence seq = ASN1Sequence.getInstance(extension.getParsedValue());
            Map<String, int[]> qcEuLimits = new HashMap<>();
            final int n = seq.size();
            for (int i = 0; i < n; i++) {
                QCStatement stmt = QCStatement.getInstance(seq.getObjectAt(i));
                if (!ObjectIdentifiers.id_etsi_qcs_QcLimitValue.equals(stmt.getStatementId())) {
                    continue;
                }
                MonetaryValue monetaryValue = MonetaryValue.getInstance(stmt.getStatementInfo());
                int amount = monetaryValue.getAmount().intValue();
                int exponent = monetaryValue.getExponent().intValue();
                Iso4217CurrencyCode currency = monetaryValue.getCurrency();
                String currencyS = currency.isAlphabetic() ? currency.getAlphabetic().toUpperCase() : Integer.toString(currency.getNumeric());
                qcEuLimits.put(currencyS, new int[] { amount, exponent });
            }
            ASN1EncodableVector vec = new ASN1EncodableVector();
            for (QcStatementOption m : qcStatementsOption) {
                if (m.getStatement() != null) {
                    vec.add(m.getStatement());
                    continue;
                }
                MonetaryValueOption monetaryOption = m.getMonetaryValueOption();
                String currencyS = monetaryOption.getCurrencyString();
                int[] limit = qcEuLimits.get(currencyS);
                if (limit == null) {
                    throw new BadCertTemplateException("no EuLimitValue is specified for currency '" + currencyS + "'");
                }
                int amount = limit[0];
                Range2Type range = monetaryOption.getAmountRange();
                if (amount < range.getMin() || amount > range.getMax()) {
                    throw new BadCertTemplateException("amount for currency '" + currencyS + "' is not within [" + range.getMin() + ", " + range.getMax() + "]");
                }
                int exponent = limit[1];
                range = monetaryOption.getExponentRange();
                if (exponent < range.getMin() || exponent > range.getMax()) {
                    throw new BadCertTemplateException("exponent for currency '" + currencyS + "' is not within [" + range.getMin() + ", " + range.getMax() + "]");
                }
                MonetaryValue monetaryVale = new MonetaryValue(monetaryOption.getCurrency(), amount, exponent);
                QCStatement qcStatment = new QCStatement(m.getStatementId(), monetaryVale);
                vec.add(qcStatment);
            }
            ExtensionValue extValue = new ExtensionValue(extensionControls.get(type).isCritical(), new DERSequence(vec));
            values.addExtension(type, extValue);
            occurences.remove(type);
        } else {
            throw new RuntimeException("should not reach here");
        }
    }
    // BiometricData
    type = Extension.biometricInfo;
    if (occurences.contains(type) && biometricInfo != null) {
        Extension extension = (requestedExtensions == null) ? null : requestedExtensions.getExtension(type);
        if (extension == null) {
            throw new BadCertTemplateException("no biometricInfo extension is contained in the request");
        }
        ASN1Sequence seq = ASN1Sequence.getInstance(extension.getParsedValue());
        final int n = seq.size();
        if (n < 1) {
            throw new BadCertTemplateException("biometricInfo extension in request contains empty sequence");
        }
        ASN1EncodableVector vec = new ASN1EncodableVector();
        for (int i = 0; i < n; i++) {
            BiometricData bd = BiometricData.getInstance(seq.getObjectAt(i));
            TypeOfBiometricData bdType = bd.getTypeOfBiometricData();
            if (!biometricInfo.isTypePermitted(bdType)) {
                throw new BadCertTemplateException("biometricInfo[" + i + "].typeOfBiometricData is not permitted");
            }
            ASN1ObjectIdentifier hashAlgo = bd.getHashAlgorithm().getAlgorithm();
            if (!biometricInfo.isHashAlgorithmPermitted(hashAlgo)) {
                throw new BadCertTemplateException("biometricInfo[" + i + "].hashAlgorithm is not permitted");
            }
            int expHashValueSize;
            try {
                expHashValueSize = AlgorithmUtil.getHashOutputSizeInOctets(hashAlgo);
            } catch (NoSuchAlgorithmException ex) {
                throw new CertprofileException("should not happen, unknown hash algorithm " + hashAlgo);
            }
            byte[] hashValue = bd.getBiometricDataHash().getOctets();
            if (hashValue.length != expHashValueSize) {
                throw new BadCertTemplateException("biometricInfo[" + i + "].biometricDataHash has incorrect length");
            }
            DERIA5String sourceDataUri = bd.getSourceDataUri();
            switch(biometricInfo.getSourceDataUriOccurrence()) {
                case FORBIDDEN:
                    sourceDataUri = null;
                    break;
                case REQUIRED:
                    if (sourceDataUri == null) {
                        throw new BadCertTemplateException("biometricInfo[" + i + "].sourceDataUri is not specified in request but is required");
                    }
                    break;
                case OPTIONAL:
                    break;
                default:
                    throw new BadCertTemplateException("could not reach here, unknown tripleState");
            }
            AlgorithmIdentifier newHashAlg = new AlgorithmIdentifier(hashAlgo, DERNull.INSTANCE);
            BiometricData newBiometricData = new BiometricData(bdType, newHashAlg, new DEROctetString(hashValue), sourceDataUri);
            vec.add(newBiometricData);
        }
        ExtensionValue extValue = new ExtensionValue(extensionControls.get(type).isCritical(), new DERSequence(vec));
        values.addExtension(type, extValue);
        occurences.remove(type);
    }
    // TlsFeature
    type = ObjectIdentifiers.id_pe_tlsfeature;
    if (tlsFeature != null) {
        if (occurences.remove(type)) {
            values.addExtension(type, tlsFeature);
        }
    }
    // AuthorizationTemplate
    type = ObjectIdentifiers.id_xipki_ext_authorizationTemplate;
    if (authorizationTemplate != null) {
        if (occurences.remove(type)) {
            values.addExtension(type, authorizationTemplate);
        }
    }
    // SMIME
    type = ObjectIdentifiers.id_smimeCapabilities;
    if (smimeCapabilities != null) {
        if (occurences.remove(type)) {
            values.addExtension(type, smimeCapabilities);
        }
    }
    // constant extensions
    if (constantExtensions != null) {
        for (ASN1ObjectIdentifier m : constantExtensions.keySet()) {
            if (!occurences.remove(m)) {
                continue;
            }
            ExtensionValue extensionValue = constantExtensions.get(m);
            if (extensionValue != null) {
                values.addExtension(m, extensionValue);
            }
        }
    }
    ExtensionValues extraExtensions = getExtraExtensions(extensionOccurences, requestedSubject, grantedSubject, requestedExtensions, notBefore, notAfter, caInfo);
    if (extraExtensions != null) {
        for (ASN1ObjectIdentifier m : extraExtensions.getExtensionTypes()) {
            values.addExtension(m, extraExtensions.getExtensionValue(m));
        }
    }
    return values;
}

Example 30 with DERTaggedObject

use of org.bouncycastle.asn1.DERTaggedObject in project xipki by xipki.

the class X509CertprofileUtil method createGeneralName.

/**
 * Creates GeneralName.
 *
 * @param requestedName
 *          Requested name. Must not be {@code null}.
 * @param modes
 *          Modes to be considered. Must not be {@code null}.
 * @return the created GeneralName
 * @throws BadCertTemplateException
 *         If requestedName is invalid or contains entries which are not allowed in the modes.
 */
public static GeneralName createGeneralName(GeneralName requestedName, Set<GeneralNameMode> modes) throws BadCertTemplateException {
    ParamUtil.requireNonNull("requestedName", requestedName);
    int tag = requestedName.getTagNo();
    GeneralNameMode mode = null;
    if (modes != null) {
        for (GeneralNameMode m : modes) {
            if (m.getTag().getTag() == tag) {
                mode = m;
                break;
            }
        }
        if (mode == null) {
            throw new BadCertTemplateException("generalName tag " + tag + " is not allowed");
        }
    }
    switch(tag) {
        case GeneralName.rfc822Name:
        case GeneralName.dNSName:
        case GeneralName.uniformResourceIdentifier:
        case GeneralName.iPAddress:
        case GeneralName.registeredID:
        case GeneralName.directoryName:
            return new GeneralName(tag, requestedName.getName());
        case GeneralName.otherName:
            ASN1Sequence reqSeq = ASN1Sequence.getInstance(requestedName.getName());
            int size = reqSeq.size();
            if (size != 2) {
                throw new BadCertTemplateException("invalid otherName sequence: size is not 2: " + size);
            }
            ASN1ObjectIdentifier type = ASN1ObjectIdentifier.getInstance(reqSeq.getObjectAt(0));
            if (mode != null && !mode.getAllowedTypes().contains(type)) {
                throw new BadCertTemplateException("otherName.type " + type.getId() + " is not allowed");
            }
            ASN1Encodable asn1 = reqSeq.getObjectAt(1);
            if (!(asn1 instanceof ASN1TaggedObject)) {
                throw new BadCertTemplateException("otherName.value is not tagged Object");
            }
            int tagNo = ASN1TaggedObject.getInstance(asn1).getTagNo();
            if (tagNo != 0) {
                throw new BadCertTemplateException("otherName.value does not have tag 0: " + tagNo);
            }
            ASN1EncodableVector vector = new ASN1EncodableVector();
            vector.add(type);
            vector.add(new DERTaggedObject(true, 0, ASN1TaggedObject.getInstance(asn1).getObject()));
            DERSequence seq = new DERSequence(vector);
            return new GeneralName(GeneralName.otherName, seq);
        case GeneralName.ediPartyName:
            reqSeq = ASN1Sequence.getInstance(requestedName.getName());
            size = reqSeq.size();
            String nameAssigner = null;
            int idx = 0;
            if (size > 1) {
                DirectoryString ds = DirectoryString.getInstance(ASN1TaggedObject.getInstance(reqSeq.getObjectAt(idx++)).getObject());
                nameAssigner = ds.getString();
            }
            DirectoryString ds = DirectoryString.getInstance(ASN1TaggedObject.getInstance(reqSeq.getObjectAt(idx++)).getObject());
            String partyName = ds.getString();
            vector = new ASN1EncodableVector();
            if (nameAssigner != null) {
                vector.add(new DERTaggedObject(false, 0, new DirectoryString(nameAssigner)));
            }
            vector.add(new DERTaggedObject(false, 1, new DirectoryString(partyName)));
            seq = new DERSequence(vector);
            return new GeneralName(GeneralName.ediPartyName, seq);
        default:
            throw new RuntimeException("should not reach here, unknown GeneralName tag " + tag);
    }
// end switch (tag)
}