Examples with ASN1OctetString org.bouncycastle.asn1.ASN1OctetString used on opensource projects

Example 56 with ASN1OctetString

use of org.bouncycastle.asn1.ASN1OctetString in project pdfbox by apache.

the class CRLVerifier method getCrlDistributionPoints.

/**
 * Extracts all CRL distribution point URLs from the "CRL Distribution
 * Point" extension in a X.509 certificate. If CRL distribution point
 * extension is unavailable, returns an empty list.
 * @param cert
 * @return List of CRL distribution point URLs.
 * @throws java.io.IOException
 */
public static List<String> getCrlDistributionPoints(X509Certificate cert) throws IOException {
    byte[] crldpExt = cert.getExtensionValue(Extension.cRLDistributionPoints.getId());
    if (crldpExt == null) {
        return new ArrayList<>();
    }
    ASN1Primitive derObjCrlDP;
    try (ASN1InputStream oAsnInStream = new ASN1InputStream(crldpExt)) {
        derObjCrlDP = oAsnInStream.readObject();
    }
    if (!(derObjCrlDP instanceof ASN1OctetString)) {
        LOG.warn("CRL distribution points for certificate subject " + cert.getSubjectX500Principal().getName() + " should be an octet string, but is " + derObjCrlDP);
        return new ArrayList<>();
    }
    ASN1OctetString dosCrlDP = (ASN1OctetString) derObjCrlDP;
    byte[] crldpExtOctets = dosCrlDP.getOctets();
    ASN1Primitive derObj2;
    try (ASN1InputStream oAsnInStream2 = new ASN1InputStream(crldpExtOctets)) {
        derObj2 = oAsnInStream2.readObject();
    }
    CRLDistPoint distPoint = CRLDistPoint.getInstance(derObj2);
    List<String> crlUrls = new ArrayList<>();
    for (DistributionPoint dp : distPoint.getDistributionPoints()) {
        DistributionPointName dpn = dp.getDistributionPoint();
        // Look for URIs in fullName
        if (dpn != null && dpn.getType() == DistributionPointName.FULL_NAME) {
            // Look for an URI
            for (GeneralName genName : GeneralNames.getInstance(dpn.getName()).getNames()) {
                if (genName.getTagNo() == GeneralName.uniformResourceIdentifier) {
                    String url = ASN1IA5String.getInstance(genName.getName()).getString();
                    crlUrls.add(url);
                }
            }
        }
    }
    return crlUrls;
}

Example 57 with ASN1OctetString

use of org.bouncycastle.asn1.ASN1OctetString in project robovm by robovm.

the class PublicKeyFactory method createKey.

/**
     * Create a public key from the passed in SubjectPublicKeyInfo
     * 
     * @param keyInfo the SubjectPublicKeyInfo containing the key data
     * @return the appropriate key parameter
     * @throws IOException on an error decoding the key
     */
public static AsymmetricKeyParameter createKey(SubjectPublicKeyInfo keyInfo) throws IOException {
    AlgorithmIdentifier algId = keyInfo.getAlgorithm();
    if (algId.getAlgorithm().equals(PKCSObjectIdentifiers.rsaEncryption) || algId.getAlgorithm().equals(X509ObjectIdentifiers.id_ea_rsa)) {
        RSAPublicKey pubKey = RSAPublicKey.getInstance(keyInfo.parsePublicKey());
        return new RSAKeyParameters(false, pubKey.getModulus(), pubKey.getPublicExponent());
    } else if (algId.getAlgorithm().equals(X9ObjectIdentifiers.dhpublicnumber)) {
        DHPublicKey dhPublicKey = DHPublicKey.getInstance(keyInfo.parsePublicKey());
        BigInteger y = dhPublicKey.getY().getValue();
        DHDomainParameters dhParams = DHDomainParameters.getInstance(algId.getParameters());
        BigInteger p = dhParams.getP().getValue();
        BigInteger g = dhParams.getG().getValue();
        BigInteger q = dhParams.getQ().getValue();
        BigInteger j = null;
        if (dhParams.getJ() != null) {
            j = dhParams.getJ().getValue();
        }
        DHValidationParameters validation = null;
        DHValidationParms dhValidationParms = dhParams.getValidationParms();
        if (dhValidationParms != null) {
            byte[] seed = dhValidationParms.getSeed().getBytes();
            BigInteger pgenCounter = dhValidationParms.getPgenCounter().getValue();
            // TODO Check pgenCounter size?
            validation = new DHValidationParameters(seed, pgenCounter.intValue());
        }
        return new DHPublicKeyParameters(y, new DHParameters(p, g, q, j, validation));
    } else if (algId.getAlgorithm().equals(PKCSObjectIdentifiers.dhKeyAgreement)) {
        DHParameter params = DHParameter.getInstance(algId.getParameters());
        ASN1Integer derY = (ASN1Integer) keyInfo.parsePublicKey();
        BigInteger lVal = params.getL();
        int l = lVal == null ? 0 : lVal.intValue();
        DHParameters dhParams = new DHParameters(params.getP(), params.getG(), null, l);
        return new DHPublicKeyParameters(derY.getValue(), dhParams);
    } else // END android-removed
    if (algId.getAlgorithm().equals(X9ObjectIdentifiers.id_dsa) || algId.getAlgorithm().equals(OIWObjectIdentifiers.dsaWithSHA1)) {
        ASN1Integer derY = (ASN1Integer) keyInfo.parsePublicKey();
        ASN1Encodable de = algId.getParameters();
        DSAParameters parameters = null;
        if (de != null) {
            DSAParameter params = DSAParameter.getInstance(de.toASN1Primitive());
            parameters = new DSAParameters(params.getP(), params.getQ(), params.getG());
        }
        return new DSAPublicKeyParameters(derY.getValue(), parameters);
    } else if (algId.getAlgorithm().equals(X9ObjectIdentifiers.id_ecPublicKey)) {
        X962Parameters params = new X962Parameters((ASN1Primitive) algId.getParameters());
        X9ECParameters x9;
        if (params.isNamedCurve()) {
            ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier) params.getParameters();
            x9 = X962NamedCurves.getByOID(oid);
            if (x9 == null) {
                x9 = SECNamedCurves.getByOID(oid);
                if (x9 == null) {
                    x9 = NISTNamedCurves.getByOID(oid);
                // BEGIN android-removed
                // if (x9 == null)
                // {
                //     x9 = TeleTrusTNamedCurves.getByOID(oid);
                // }
                // END android-removed
                }
            }
        } else {
            x9 = X9ECParameters.getInstance(params.getParameters());
        }
        ASN1OctetString key = new DEROctetString(keyInfo.getPublicKeyData().getBytes());
        X9ECPoint derQ = new X9ECPoint(x9.getCurve(), key);
        // TODO We lose any named parameters here
        ECDomainParameters dParams = new ECDomainParameters(x9.getCurve(), x9.getG(), x9.getN(), x9.getH(), x9.getSeed());
        return new ECPublicKeyParameters(derQ.getPoint(), dParams);
    } else {
        throw new RuntimeException("algorithm identifier in key not recognised");
    }
}

Example 58 with ASN1OctetString

use of org.bouncycastle.asn1.ASN1OctetString in project robovm by robovm.

the class AuthorityKeyIdentifierStructure method fromCertificate.

private static ASN1Sequence fromCertificate(X509Certificate certificate) throws CertificateParsingException {
    try {
        if (certificate.getVersion() != 3) {
            GeneralName genName = new GeneralName(PrincipalUtil.getIssuerX509Principal(certificate));
            SubjectPublicKeyInfo info = new SubjectPublicKeyInfo((ASN1Sequence) new ASN1InputStream(certificate.getPublicKey().getEncoded()).readObject());
            return (ASN1Sequence) new AuthorityKeyIdentifier(info, new GeneralNames(genName), certificate.getSerialNumber()).toASN1Object();
        } else {
            GeneralName genName = new GeneralName(PrincipalUtil.getIssuerX509Principal(certificate));
            byte[] ext = certificate.getExtensionValue(X509Extensions.SubjectKeyIdentifier.getId());
            if (ext != null) {
                ASN1OctetString str = (ASN1OctetString) X509ExtensionUtil.fromExtensionValue(ext);
                return (ASN1Sequence) new AuthorityKeyIdentifier(str.getOctets(), new GeneralNames(genName), certificate.getSerialNumber()).toASN1Object();
            } else {
                SubjectPublicKeyInfo info = new SubjectPublicKeyInfo((ASN1Sequence) new ASN1InputStream(certificate.getPublicKey().getEncoded()).readObject());
                return (ASN1Sequence) new AuthorityKeyIdentifier(info, new GeneralNames(genName), certificate.getSerialNumber()).toASN1Object();
            }
        }
    } catch (Exception e) {
        throw new CertificateParsingException("Exception extracting certificate details: " + e.toString());
    }
}

Example 59 with ASN1OctetString

use of org.bouncycastle.asn1.ASN1OctetString in project XobotOS by xamarin.

the class ASN1Dump method _dumpAsString.

/**
     * dump a DER object as a formatted string with indentation
     *
     * @param obj the DERObject to be dumped out.
     */
static void _dumpAsString(String indent, boolean verbose, DERObject obj, StringBuffer buf) {
    String nl = System.getProperty("line.separator");
    if (obj instanceof ASN1Sequence) {
        Enumeration e = ((ASN1Sequence) obj).getObjects();
        String tab = indent + TAB;
        buf.append(indent);
        if (obj instanceof BERSequence) {
            buf.append("BER Sequence");
        } else if (obj instanceof DERSequence) {
            buf.append("DER Sequence");
        } else {
            buf.append("Sequence");
        }
        buf.append(nl);
        while (e.hasMoreElements()) {
            Object o = e.nextElement();
            // BEGIN android-changed
            if (o == null || o.equals(DERNull.INSTANCE)) // END android-changed
            {
                buf.append(tab);
                buf.append("NULL");
                buf.append(nl);
            } else if (o instanceof DERObject) {
                _dumpAsString(tab, verbose, (DERObject) o, buf);
            } else {
                _dumpAsString(tab, verbose, ((DEREncodable) o).getDERObject(), buf);
            }
        }
    } else if (obj instanceof DERTaggedObject) {
        String tab = indent + TAB;
        buf.append(indent);
        if (obj instanceof BERTaggedObject) {
            buf.append("BER Tagged [");
        } else {
            buf.append("Tagged [");
        }
        DERTaggedObject o = (DERTaggedObject) obj;
        buf.append(Integer.toString(o.getTagNo()));
        buf.append(']');
        if (!o.isExplicit()) {
            buf.append(" IMPLICIT ");
        }
        buf.append(nl);
        if (o.isEmpty()) {
            buf.append(tab);
            buf.append("EMPTY");
            buf.append(nl);
        } else {
            _dumpAsString(tab, verbose, o.getObject(), buf);
        }
    } else if (obj instanceof BERSet) {
        Enumeration e = ((ASN1Set) obj).getObjects();
        String tab = indent + TAB;
        buf.append(indent);
        buf.append("BER Set");
        buf.append(nl);
        while (e.hasMoreElements()) {
            Object o = e.nextElement();
            if (o == null) {
                buf.append(tab);
                buf.append("NULL");
                buf.append(nl);
            } else if (o instanceof DERObject) {
                _dumpAsString(tab, verbose, (DERObject) o, buf);
            } else {
                _dumpAsString(tab, verbose, ((DEREncodable) o).getDERObject(), buf);
            }
        }
    } else if (obj instanceof DERSet) {
        Enumeration e = ((ASN1Set) obj).getObjects();
        String tab = indent + TAB;
        buf.append(indent);
        buf.append("DER Set");
        buf.append(nl);
        while (e.hasMoreElements()) {
            Object o = e.nextElement();
            if (o == null) {
                buf.append(tab);
                buf.append("NULL");
                buf.append(nl);
            } else if (o instanceof DERObject) {
                _dumpAsString(tab, verbose, (DERObject) o, buf);
            } else {
                _dumpAsString(tab, verbose, ((DEREncodable) o).getDERObject(), buf);
            }
        }
    } else if (obj instanceof DERObjectIdentifier) {
        buf.append(indent + "ObjectIdentifier(" + ((DERObjectIdentifier) obj).getId() + ")" + nl);
    } else if (obj instanceof DERBoolean) {
        buf.append(indent + "Boolean(" + ((DERBoolean) obj).isTrue() + ")" + nl);
    } else if (obj instanceof DERInteger) {
        buf.append(indent + "Integer(" + ((DERInteger) obj).getValue() + ")" + nl);
    } else if (obj instanceof BERConstructedOctetString) {
        ASN1OctetString oct = (ASN1OctetString) obj;
        buf.append(indent + "BER Constructed Octet String" + "[" + oct.getOctets().length + "] ");
        if (verbose) {
            buf.append(dumpBinaryDataAsString(indent, oct.getOctets()));
        } else {
            buf.append(nl);
        }
    } else if (obj instanceof DEROctetString) {
        ASN1OctetString oct = (ASN1OctetString) obj;
        buf.append(indent + "DER Octet String" + "[" + oct.getOctets().length + "] ");
        if (verbose) {
            buf.append(dumpBinaryDataAsString(indent, oct.getOctets()));
        } else {
            buf.append(nl);
        }
    } else if (obj instanceof DERBitString) {
        DERBitString bt = (DERBitString) obj;
        buf.append(indent + "DER Bit String" + "[" + bt.getBytes().length + ", " + bt.getPadBits() + "] ");
        if (verbose) {
            buf.append(dumpBinaryDataAsString(indent, bt.getBytes()));
        } else {
            buf.append(nl);
        }
    } else if (obj instanceof DERIA5String) {
        buf.append(indent + "IA5String(" + ((DERIA5String) obj).getString() + ") " + nl);
    } else if (obj instanceof DERUTF8String) {
        buf.append(indent + "UTF8String(" + ((DERUTF8String) obj).getString() + ") " + nl);
    } else if (obj instanceof DERPrintableString) {
        buf.append(indent + "PrintableString(" + ((DERPrintableString) obj).getString() + ") " + nl);
    } else if (obj instanceof DERVisibleString) {
        buf.append(indent + "VisibleString(" + ((DERVisibleString) obj).getString() + ") " + nl);
    } else if (obj instanceof DERBMPString) {
        buf.append(indent + "BMPString(" + ((DERBMPString) obj).getString() + ") " + nl);
    } else if (obj instanceof DERT61String) {
        buf.append(indent + "T61String(" + ((DERT61String) obj).getString() + ") " + nl);
    } else if (obj instanceof DERUTCTime) {
        buf.append(indent + "UTCTime(" + ((DERUTCTime) obj).getTime() + ") " + nl);
    } else if (obj instanceof DERGeneralizedTime) {
        buf.append(indent + "GeneralizedTime(" + ((DERGeneralizedTime) obj).getTime() + ") " + nl);
    } else if (obj instanceof DERUnknownTag) {
        buf.append(indent + "Unknown " + Integer.toString(((DERUnknownTag) obj).getTag(), 16) + " " + new String(Hex.encode(((DERUnknownTag) obj).getData())) + nl);
    } else if (obj instanceof BERApplicationSpecific) {
        buf.append(outputApplicationSpecific("BER", indent, verbose, obj, nl));
    } else if (obj instanceof DERApplicationSpecific) {
        buf.append(outputApplicationSpecific("DER", indent, verbose, obj, nl));
    } else if (obj instanceof DEREnumerated) {
        DEREnumerated en = (DEREnumerated) obj;
        buf.append(indent + "DER Enumerated(" + en.getValue() + ")" + nl);
    } else if (obj instanceof DERExternal) {
        DERExternal ext = (DERExternal) obj;
        buf.append(indent + "External " + nl);
        String tab = indent + TAB;
        if (ext.getDirectReference() != null) {
            buf.append(tab + "Direct Reference: " + ext.getDirectReference().getId() + nl);
        }
        if (ext.getIndirectReference() != null) {
            buf.append(tab + "Indirect Reference: " + ext.getIndirectReference().toString() + nl);
        }
        if (ext.getDataValueDescriptor() != null) {
            _dumpAsString(tab, verbose, ext.getDataValueDescriptor(), buf);
        }
        buf.append(tab + "Encoding: " + ext.getEncoding() + nl);
        _dumpAsString(tab, verbose, ext.getExternalContent(), buf);
    } else {
        buf.append(indent + obj.toString() + nl);
    }
}

Example 60 with ASN1OctetString

use of org.bouncycastle.asn1.ASN1OctetString in project XobotOS by xamarin.

the class JDKPKCS12KeyStore method engineLoad.

public void engineLoad(InputStream stream, char[] password) throws IOException {
    if (// just initialising
    stream == null) {
        return;
    }
    if (password == null) {
        throw new NullPointerException("No password supplied for PKCS#12 KeyStore.");
    }
    BufferedInputStream bufIn = new BufferedInputStream(stream);
    bufIn.mark(10);
    int head = bufIn.read();
    if (head != 0x30) {
        throw new IOException("stream does not represent a PKCS12 key store");
    }
    bufIn.reset();
    ASN1InputStream bIn = new ASN1InputStream(bufIn);
    ASN1Sequence obj = (ASN1Sequence) bIn.readObject();
    Pfx bag = new Pfx(obj);
    ContentInfo info = bag.getAuthSafe();
    Vector chain = new Vector();
    boolean unmarkedKey = false;
    boolean wrongPKCS12Zero = false;
    if (// check the mac code
    bag.getMacData() != null) {
        MacData mData = bag.getMacData();
        DigestInfo dInfo = mData.getMac();
        AlgorithmIdentifier algId = dInfo.getAlgorithmId();
        byte[] salt = mData.getSalt();
        int itCount = mData.getIterationCount().intValue();
        byte[] data = ((ASN1OctetString) info.getContent()).getOctets();
        try {
            byte[] res = calculatePbeMac(algId.getObjectId(), salt, itCount, password, false, data);
            byte[] dig = dInfo.getDigest();
            if (!Arrays.constantTimeAreEqual(res, dig)) {
                if (password.length > 0) {
                    throw new IOException("PKCS12 key store mac invalid - wrong password or corrupted file.");
                }
                // Try with incorrect zero length password
                res = calculatePbeMac(algId.getObjectId(), salt, itCount, password, true, data);
                if (!Arrays.constantTimeAreEqual(res, dig)) {
                    throw new IOException("PKCS12 key store mac invalid - wrong password or corrupted file.");
                }
                wrongPKCS12Zero = true;
            }
        } catch (IOException e) {
            throw e;
        } catch (Exception e) {
            throw new IOException("error constructing MAC: " + e.toString());
        }
    }
    keys = new IgnoresCaseHashtable();
    localIds = new Hashtable();
    if (info.getContentType().equals(data)) {
        bIn = new ASN1InputStream(((ASN1OctetString) info.getContent()).getOctets());
        AuthenticatedSafe authSafe = new AuthenticatedSafe((ASN1Sequence) bIn.readObject());
        ContentInfo[] c = authSafe.getContentInfo();
        for (int i = 0; i != c.length; i++) {
            if (c[i].getContentType().equals(data)) {
                ASN1InputStream dIn = new ASN1InputStream(((ASN1OctetString) c[i].getContent()).getOctets());
                ASN1Sequence seq = (ASN1Sequence) dIn.readObject();
                for (int j = 0; j != seq.size(); j++) {
                    SafeBag b = new SafeBag((ASN1Sequence) seq.getObjectAt(j));
                    if (b.getBagId().equals(pkcs8ShroudedKeyBag)) {
                        org.bouncycastle.asn1.pkcs.EncryptedPrivateKeyInfo eIn = new org.bouncycastle.asn1.pkcs.EncryptedPrivateKeyInfo((ASN1Sequence) b.getBagValue());
                        PrivateKey privKey = unwrapKey(eIn.getEncryptionAlgorithm(), eIn.getEncryptedData(), password, wrongPKCS12Zero);
                        //
                        // set the attributes on the key
                        //
                        PKCS12BagAttributeCarrier bagAttr = (PKCS12BagAttributeCarrier) privKey;
                        String alias = null;
                        ASN1OctetString localId = null;
                        if (b.getBagAttributes() != null) {
                            Enumeration e = b.getBagAttributes().getObjects();
                            while (e.hasMoreElements()) {
                                ASN1Sequence sq = (ASN1Sequence) e.nextElement();
                                DERObjectIdentifier aOid = (DERObjectIdentifier) sq.getObjectAt(0);
                                ASN1Set attrSet = (ASN1Set) sq.getObjectAt(1);
                                DERObject attr = null;
                                if (attrSet.size() > 0) {
                                    attr = (DERObject) attrSet.getObjectAt(0);
                                    DEREncodable existing = bagAttr.getBagAttribute(aOid);
                                    if (existing != null) {
                                        // OK, but the value has to be the same
                                        if (!existing.getDERObject().equals(attr)) {
                                            throw new IOException("attempt to add existing attribute with different value");
                                        }
                                    } else {
                                        bagAttr.setBagAttribute(aOid, attr);
                                    }
                                }
                                if (aOid.equals(pkcs_9_at_friendlyName)) {
                                    alias = ((DERBMPString) attr).getString();
                                    keys.put(alias, privKey);
                                } else if (aOid.equals(pkcs_9_at_localKeyId)) {
                                    localId = (ASN1OctetString) attr;
                                }
                            }
                        }
                        if (localId != null) {
                            String name = new String(Hex.encode(localId.getOctets()));
                            if (alias == null) {
                                keys.put(name, privKey);
                            } else {
                                localIds.put(alias, name);
                            }
                        } else {
                            unmarkedKey = true;
                            keys.put("unmarked", privKey);
                        }
                    } else if (b.getBagId().equals(certBag)) {
                        chain.addElement(b);
                    } else {
                        System.out.println("extra in data " + b.getBagId());
                        System.out.println(ASN1Dump.dumpAsString(b));
                    }
                }
            } else if (c[i].getContentType().equals(encryptedData)) {
                EncryptedData d = new EncryptedData((ASN1Sequence) c[i].getContent());
                byte[] octets = cryptData(false, d.getEncryptionAlgorithm(), password, wrongPKCS12Zero, d.getContent().getOctets());
                ASN1Sequence seq = (ASN1Sequence) ASN1Object.fromByteArray(octets);
                for (int j = 0; j != seq.size(); j++) {
                    SafeBag b = new SafeBag((ASN1Sequence) seq.getObjectAt(j));
                    if (b.getBagId().equals(certBag)) {
                        chain.addElement(b);
                    } else if (b.getBagId().equals(pkcs8ShroudedKeyBag)) {
                        org.bouncycastle.asn1.pkcs.EncryptedPrivateKeyInfo eIn = new org.bouncycastle.asn1.pkcs.EncryptedPrivateKeyInfo((ASN1Sequence) b.getBagValue());
                        PrivateKey privKey = unwrapKey(eIn.getEncryptionAlgorithm(), eIn.getEncryptedData(), password, wrongPKCS12Zero);
                        //
                        // set the attributes on the key
                        //
                        PKCS12BagAttributeCarrier bagAttr = (PKCS12BagAttributeCarrier) privKey;
                        String alias = null;
                        ASN1OctetString localId = null;
                        Enumeration e = b.getBagAttributes().getObjects();
                        while (e.hasMoreElements()) {
                            ASN1Sequence sq = (ASN1Sequence) e.nextElement();
                            DERObjectIdentifier aOid = (DERObjectIdentifier) sq.getObjectAt(0);
                            ASN1Set attrSet = (ASN1Set) sq.getObjectAt(1);
                            DERObject attr = null;
                            if (attrSet.size() > 0) {
                                attr = (DERObject) attrSet.getObjectAt(0);
                                DEREncodable existing = bagAttr.getBagAttribute(aOid);
                                if (existing != null) {
                                    // OK, but the value has to be the same
                                    if (!existing.getDERObject().equals(attr)) {
                                        throw new IOException("attempt to add existing attribute with different value");
                                    }
                                } else {
                                    bagAttr.setBagAttribute(aOid, attr);
                                }
                            }
                            if (aOid.equals(pkcs_9_at_friendlyName)) {
                                alias = ((DERBMPString) attr).getString();
                                keys.put(alias, privKey);
                            } else if (aOid.equals(pkcs_9_at_localKeyId)) {
                                localId = (ASN1OctetString) attr;
                            }
                        }
                        String name = new String(Hex.encode(localId.getOctets()));
                        if (alias == null) {
                            keys.put(name, privKey);
                        } else {
                            localIds.put(alias, name);
                        }
                    } else if (b.getBagId().equals(keyBag)) {
                        org.bouncycastle.asn1.pkcs.PrivateKeyInfo pIn = new org.bouncycastle.asn1.pkcs.PrivateKeyInfo((ASN1Sequence) b.getBagValue());
                        PrivateKey privKey = JDKKeyFactory.createPrivateKeyFromPrivateKeyInfo(pIn);
                        //
                        // set the attributes on the key
                        //
                        PKCS12BagAttributeCarrier bagAttr = (PKCS12BagAttributeCarrier) privKey;
                        String alias = null;
                        ASN1OctetString localId = null;
                        Enumeration e = b.getBagAttributes().getObjects();
                        while (e.hasMoreElements()) {
                            ASN1Sequence sq = (ASN1Sequence) e.nextElement();
                            DERObjectIdentifier aOid = (DERObjectIdentifier) sq.getObjectAt(0);
                            ASN1Set attrSet = (ASN1Set) sq.getObjectAt(1);
                            DERObject attr = null;
                            if (attrSet.size() > 0) {
                                attr = (DERObject) attrSet.getObjectAt(0);
                                DEREncodable existing = bagAttr.getBagAttribute(aOid);
                                if (existing != null) {
                                    // OK, but the value has to be the same
                                    if (!existing.getDERObject().equals(attr)) {
                                        throw new IOException("attempt to add existing attribute with different value");
                                    }
                                } else {
                                    bagAttr.setBagAttribute(aOid, attr);
                                }
                            }
                            if (aOid.equals(pkcs_9_at_friendlyName)) {
                                alias = ((DERBMPString) attr).getString();
                                keys.put(alias, privKey);
                            } else if (aOid.equals(pkcs_9_at_localKeyId)) {
                                localId = (ASN1OctetString) attr;
                            }
                        }
                        String name = new String(Hex.encode(localId.getOctets()));
                        if (alias == null) {
                            keys.put(name, privKey);
                        } else {
                            localIds.put(alias, name);
                        }
                    } else {
                        System.out.println("extra in encryptedData " + b.getBagId());
                        System.out.println(ASN1Dump.dumpAsString(b));
                    }
                }
            } else {
                System.out.println("extra " + c[i].getContentType().getId());
                System.out.println("extra " + ASN1Dump.dumpAsString(c[i].getContent()));
            }
        }
    }
    certs = new IgnoresCaseHashtable();
    chainCerts = new Hashtable();
    keyCerts = new Hashtable();
    for (int i = 0; i != chain.size(); i++) {
        SafeBag b = (SafeBag) chain.elementAt(i);
        CertBag cb = new CertBag((ASN1Sequence) b.getBagValue());
        if (!cb.getCertId().equals(x509Certificate)) {
            throw new RuntimeException("Unsupported certificate type: " + cb.getCertId());
        }
        Certificate cert;
        try {
            ByteArrayInputStream cIn = new ByteArrayInputStream(((ASN1OctetString) cb.getCertValue()).getOctets());
            cert = certFact.generateCertificate(cIn);
        } catch (Exception e) {
            throw new RuntimeException(e.toString());
        }
        //
        // set the attributes
        //
        ASN1OctetString localId = null;
        String alias = null;
        if (b.getBagAttributes() != null) {
            Enumeration e = b.getBagAttributes().getObjects();
            while (e.hasMoreElements()) {
                ASN1Sequence sq = (ASN1Sequence) e.nextElement();
                DERObjectIdentifier oid = (DERObjectIdentifier) sq.getObjectAt(0);
                DERObject attr = (DERObject) ((ASN1Set) sq.getObjectAt(1)).getObjectAt(0);
                PKCS12BagAttributeCarrier bagAttr = null;
                if (cert instanceof PKCS12BagAttributeCarrier) {
                    bagAttr = (PKCS12BagAttributeCarrier) cert;
                    DEREncodable existing = bagAttr.getBagAttribute(oid);
                    if (existing != null) {
                        // OK, but the value has to be the same
                        if (!existing.getDERObject().equals(attr)) {
                            throw new IOException("attempt to add existing attribute with different value");
                        }
                    } else {
                        bagAttr.setBagAttribute(oid, attr);
                    }
                }
                if (oid.equals(pkcs_9_at_friendlyName)) {
                    alias = ((DERBMPString) attr).getString();
                } else if (oid.equals(pkcs_9_at_localKeyId)) {
                    localId = (ASN1OctetString) attr;
                }
            }
        }
        chainCerts.put(new CertId(cert.getPublicKey()), cert);
        if (unmarkedKey) {
            if (keyCerts.isEmpty()) {
                String name = new String(Hex.encode(createSubjectKeyId(cert.getPublicKey()).getKeyIdentifier()));
                keyCerts.put(name, cert);
                keys.put(name, keys.remove("unmarked"));
            }
        } else {
            //
            if (localId != null) {
                String name = new String(Hex.encode(localId.getOctets()));
                keyCerts.put(name, cert);
            }
            if (alias != null) {
                certs.put(alias, cert);
            }
        }
    }
}