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

Example 6 with DERObjectIdentifier

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

the class BCECPrivateKey method getEncoded.

/**
     * Return a PKCS8 representation of the key. The sequence returned
     * represents a full PrivateKeyInfo object.
     *
     * @return a PKCS8 representation of the key.
     */
public byte[] getEncoded() {
    X962Parameters params;
    if (ecSpec instanceof ECNamedCurveSpec) {
        DERObjectIdentifier curveOid = ECUtil.getNamedCurveOid(((ECNamedCurveSpec) ecSpec).getName());
        if (// guess it's the OID
        curveOid == null) {
            curveOid = new DERObjectIdentifier(((ECNamedCurveSpec) ecSpec).getName());
        }
        params = new X962Parameters(curveOid);
    } else if (ecSpec == null) {
        params = new X962Parameters(DERNull.INSTANCE);
    } else {
        ECCurve curve = EC5Util.convertCurve(ecSpec.getCurve());
        X9ECParameters ecP = new X9ECParameters(curve, EC5Util.convertPoint(curve, ecSpec.getGenerator(), withCompression), ecSpec.getOrder(), BigInteger.valueOf(ecSpec.getCofactor()), ecSpec.getCurve().getSeed());
        params = new X962Parameters(ecP);
    }
    PrivateKeyInfo info;
    org.bouncycastle.asn1.sec.ECPrivateKey keyStructure;
    if (publicKey != null) {
        keyStructure = new org.bouncycastle.asn1.sec.ECPrivateKey(this.getS(), publicKey, params);
    } else {
        keyStructure = new org.bouncycastle.asn1.sec.ECPrivateKey(this.getS(), params);
    }
    try {
        // BEGIN android-removed
        // if (algorithm.equals("ECGOST3410"))
        // {
        //     info = new PrivateKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_2001, params.toASN1Primitive()), keyStructure.toASN1Primitive());
        // }
        // else
        // END android-removed
        {
            info = new PrivateKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.toASN1Primitive()), keyStructure.toASN1Primitive());
        }
        return info.getEncoded(ASN1Encoding.DER);
    } catch (IOException e) {
        return null;
    }
}

Example 7 with DERObjectIdentifier

use of org.bouncycastle.asn1.DERObjectIdentifier in project platform_frameworks_base by android.

the class ESTHandler method buildCSR.

private byte[] buildCSR(ByteBuffer octetBuffer, OMADMAdapter omadmAdapter, HTTPHandler httpHandler) throws IOException, GeneralSecurityException {
    //Security.addProvider(new BouncyCastleProvider());
    Log.d(TAG, "/csrattrs:");
    /*
        byte[] octets = new byte[octetBuffer.remaining()];
        octetBuffer.duplicate().get(octets);
        for (byte b : octets) {
            System.out.printf("%02x ", b & 0xff);
        }
        */
    Collection<Asn1Object> csrs = Asn1Decoder.decode(octetBuffer);
    for (Asn1Object asn1Object : csrs) {
        Log.d(TAG, asn1Object.toString());
    }
    if (csrs.size() != 1) {
        throw new IOException("Unexpected object count in CSR attributes response: " + csrs.size());
    }
    Asn1Object sequence = csrs.iterator().next();
    if (sequence.getClass() != Asn1Constructed.class) {
        throw new IOException("Unexpected CSR attribute container: " + sequence);
    }
    String keyAlgo = null;
    Asn1Oid keyAlgoOID = null;
    String sigAlgo = null;
    String curveName = null;
    Asn1Oid pubCrypto = null;
    int keySize = -1;
    Map<Asn1Oid, ASN1Encodable> idAttributes = new HashMap<>();
    for (Asn1Object child : sequence.getChildren()) {
        if (child.getTag() == Asn1Decoder.TAG_OID) {
            Asn1Oid oid = (Asn1Oid) child;
            OidMappings.SigEntry sigEntry = OidMappings.getSigEntry(oid);
            if (sigEntry != null) {
                sigAlgo = sigEntry.getSigAlgo();
                keyAlgoOID = sigEntry.getKeyAlgo();
                keyAlgo = OidMappings.getJCEName(keyAlgoOID);
            } else if (oid.equals(OidMappings.sPkcs9AtChallengePassword)) {
                byte[] tlsUnique = httpHandler.getTLSUnique();
                if (tlsUnique != null) {
                    idAttributes.put(oid, new DERPrintableString(Base64.encodeToString(tlsUnique, Base64.DEFAULT)));
                } else {
                    Log.w(TAG, "Cannot retrieve TLS unique channel binding");
                }
            }
        } else if (child.getTag() == Asn1Decoder.TAG_SEQ) {
            Asn1Oid oid = null;
            Set<Asn1Oid> oidValues = new HashSet<>();
            List<Asn1Object> values = new ArrayList<>();
            for (Asn1Object attributeSeq : child.getChildren()) {
                if (attributeSeq.getTag() == Asn1Decoder.TAG_OID) {
                    oid = (Asn1Oid) attributeSeq;
                } else if (attributeSeq.getTag() == Asn1Decoder.TAG_SET) {
                    for (Asn1Object value : attributeSeq.getChildren()) {
                        if (value.getTag() == Asn1Decoder.TAG_OID) {
                            oidValues.add((Asn1Oid) value);
                        } else {
                            values.add(value);
                        }
                    }
                }
            }
            if (oid == null) {
                throw new IOException("Invalid attribute, no OID");
            }
            if (oid.equals(OidMappings.sExtensionRequest)) {
                for (Asn1Oid subOid : oidValues) {
                    if (OidMappings.isIDAttribute(subOid)) {
                        if (subOid.equals(OidMappings.sMAC)) {
                            idAttributes.put(subOid, new DERIA5String(omadmAdapter.getMAC()));
                        } else if (subOid.equals(OidMappings.sIMEI)) {
                            idAttributes.put(subOid, new DERIA5String(omadmAdapter.getImei()));
                        } else if (subOid.equals(OidMappings.sMEID)) {
                            idAttributes.put(subOid, new DERBitString(omadmAdapter.getMeid()));
                        } else if (subOid.equals(OidMappings.sDevID)) {
                            idAttributes.put(subOid, new DERPrintableString(omadmAdapter.getDevID()));
                        }
                    }
                }
            } else if (OidMappings.getCryptoID(oid) != null) {
                pubCrypto = oid;
                if (!values.isEmpty()) {
                    for (Asn1Object value : values) {
                        if (value.getTag() == Asn1Decoder.TAG_INTEGER) {
                            keySize = (int) ((Asn1Integer) value).getValue();
                        }
                    }
                }
                if (oid.equals(OidMappings.sAlgo_EC)) {
                    if (oidValues.isEmpty()) {
                        throw new IOException("No ECC curve name provided");
                    }
                    for (Asn1Oid value : oidValues) {
                        curveName = OidMappings.getJCEName(value);
                        if (curveName != null) {
                            break;
                        }
                    }
                    if (curveName == null) {
                        throw new IOException("Found no ECC curve for " + oidValues);
                    }
                }
            }
        }
    }
    if (keyAlgoOID == null) {
        throw new IOException("No public key algorithm specified");
    }
    if (pubCrypto != null && !pubCrypto.equals(keyAlgoOID)) {
        throw new IOException("Mismatching key algorithms");
    }
    if (keyAlgoOID.equals(OidMappings.sAlgo_RSA)) {
        if (keySize < MinRSAKeySize) {
            if (keySize >= 0) {
                Log.i(TAG, "Upgrading suggested RSA key size from " + keySize + " to " + MinRSAKeySize);
            }
            keySize = MinRSAKeySize;
        }
    }
    Log.d(TAG, String.format("pub key '%s', signature '%s', ECC curve '%s', id-atts %s", keyAlgo, sigAlgo, curveName, idAttributes));
    /*
          Ruckus:
            SEQUENCE:
              OID=1.2.840.113549.1.1.11 (algo_id_sha256WithRSAEncryption)

          RFC-7030:
            SEQUENCE:
              OID=1.2.840.113549.1.9.7 (challengePassword)
              SEQUENCE:
                OID=1.2.840.10045.2.1 (algo_id_ecPublicKey)
                SET:
                  OID=1.3.132.0.34 (secp384r1)
              SEQUENCE:
                OID=1.2.840.113549.1.9.14 (extensionRequest)
                SET:
                  OID=1.3.6.1.1.1.1.22 (mac-address)
              OID=1.2.840.10045.4.3.3 (eccdaWithSHA384)

              1L, 3L, 6L, 1L, 1L, 1L, 1L, 22
         */
    // ECC Does not appear to be supported currently
    KeyPairGenerator kpg = KeyPairGenerator.getInstance(keyAlgo);
    if (curveName != null) {
        AlgorithmParameters algorithmParameters = AlgorithmParameters.getInstance(keyAlgo);
        algorithmParameters.init(new ECNamedCurveGenParameterSpec(curveName));
        kpg.initialize(algorithmParameters.getParameterSpec(ECNamedCurveGenParameterSpec.class));
    } else {
        kpg.initialize(keySize);
    }
    KeyPair kp = kpg.generateKeyPair();
    X500Principal subject = new X500Principal("CN=Android, O=Google, C=US");
    mClientKey = kp.getPrivate();
    // !!! Map the idAttributes into an ASN1Set of values to pass to
    // the PKCS10CertificationRequest - this code is using outdated BC classes and
    // has *not* been tested.
    ASN1Set attributes;
    if (!idAttributes.isEmpty()) {
        ASN1EncodableVector payload = new DEREncodableVector();
        for (Map.Entry<Asn1Oid, ASN1Encodable> entry : idAttributes.entrySet()) {
            DERObjectIdentifier type = new DERObjectIdentifier(entry.getKey().toOIDString());
            ASN1Set values = new DERSet(entry.getValue());
            Attribute attribute = new Attribute(type, values);
            payload.add(attribute);
        }
        attributes = new DERSet(payload);
    } else {
        attributes = null;
    }
    return new PKCS10CertificationRequest(sigAlgo, subject, kp.getPublic(), attributes, mClientKey).getEncoded();
}

Example 8 with DERObjectIdentifier

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

the class JCEECPublicKey method populateFromPubKeyInfo.

private void populateFromPubKeyInfo(SubjectPublicKeyInfo info) {
    // BEGIN android-removed
    // if (info.getAlgorithmId().getObjectId().equals(CryptoProObjectIdentifiers.gostR3410_2001))
    // {
    //     DERBitString bits = info.getPublicKeyData();
    //     ASN1OctetString key;
    //     this.algorithm = "ECGOST3410";
    //
    //     try
    //     {
    //         key = (ASN1OctetString) ASN1Object.fromByteArray(bits.getBytes());
    //     }
    //     catch (IOException ex)
    //     {
    //         throw new IllegalArgumentException("error recovering public key");
    //     }
    //
    //     byte[]          keyEnc = key.getOctets();
    //     byte[]          x = new byte[32];
    //     byte[]          y = new byte[32];
    //
    //     for (int i = 0; i != x.length; i++)
    //     {
    //         x[i] = keyEnc[32 - 1 - i];
    //     }
    //
    //     for (int i = 0; i != y.length; i++)
    //     {
    //         y[i] = keyEnc[64 - 1 - i];
    //     }
    //
    //     gostParams = new GOST3410PublicKeyAlgParameters((ASN1Sequence)info.getAlgorithmId().getParameters());
    //
    //     ECNamedCurveParameterSpec spec = ECGOST3410NamedCurveTable.getParameterSpec(ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()));
    //
    //     ECCurve curve = spec.getCurve();
    //     EllipticCurve ellipticCurve = EC5Util.convertCurve(curve, spec.getSeed());
    //
    //     this.q = curve.createPoint(new BigInteger(1, x), new BigInteger(1, y), false);
    //
    //     ecSpec = new ECNamedCurveSpec(
    //             ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()),
    //             ellipticCurve,
    //             new ECPoint(
    //                     spec.getG().getX().toBigInteger(),
    //                     spec.getG().getY().toBigInteger()),
    //                     spec.getN(), spec.getH());
    //
    // }
    // else
    // END android-removed
    {
        X962Parameters params = new X962Parameters((DERObject) info.getAlgorithmId().getParameters());
        ECCurve curve;
        EllipticCurve ellipticCurve;
        if (params.isNamedCurve()) {
            DERObjectIdentifier oid = (DERObjectIdentifier) params.getParameters();
            X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);
            curve = ecP.getCurve();
            ellipticCurve = EC5Util.convertCurve(curve, ecP.getSeed());
            ecSpec = new ECNamedCurveSpec(ECUtil.getCurveName(oid), ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH());
        } else if (params.isImplicitlyCA()) {
            ecSpec = null;
            curve = ProviderUtil.getEcImplicitlyCa().getCurve();
        } else {
            X9ECParameters ecP = new X9ECParameters((ASN1Sequence) params.getParameters());
            curve = ecP.getCurve();
            ellipticCurve = EC5Util.convertCurve(curve, ecP.getSeed());
            this.ecSpec = new ECParameterSpec(ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH().intValue());
        }
        DERBitString bits = info.getPublicKeyData();
        byte[] data = bits.getBytes();
        ASN1OctetString key = new DEROctetString(data);
        //
        if (data[0] == 0x04 && data[1] == data.length - 2 && (data[2] == 0x02 || data[2] == 0x03)) {
            int qLength = new X9IntegerConverter().getByteLength(curve);
            if (qLength >= data.length - 3) {
                try {
                    key = (ASN1OctetString) ASN1Object.fromByteArray(data);
                } catch (IOException ex) {
                    throw new IllegalArgumentException("error recovering public key");
                }
            }
        }
        X9ECPoint derQ = new X9ECPoint(curve, key);
        this.q = derQ.getPoint();
    }
}

Example 9 with DERObjectIdentifier

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

the class JCEECPublicKey method getEncoded.

public byte[] getEncoded() {
    ASN1Encodable params;
    SubjectPublicKeyInfo info;
    // BEGIN android-removed
    // if (algorithm.equals("ECGOST3410"))
    // {
    //     if (gostParams != null)
    //     {
    //         params = gostParams;
    //     }
    //     else
    //     {
    //         if (ecSpec instanceof ECNamedCurveSpec)
    //         {
    //             params = new GOST3410PublicKeyAlgParameters(
    //                            ECGOST3410NamedCurves.getOID(((ECNamedCurveSpec)ecSpec).getName()),
    //                            CryptoProObjectIdentifiers.gostR3411_94_CryptoProParamSet);
    //         }
    //         else
    //         {   // strictly speaking this may not be applicable...
    //             ECCurve curve = EC5Util.convertCurve(ecSpec.getCurve());
    //
    //             X9ECParameters ecP = new X9ECParameters(
    //                 curve,
    //                 EC5Util.convertPoint(curve, ecSpec.getGenerator(), withCompression),
    //                 ecSpec.getOrder(),
    //                 BigInteger.valueOf(ecSpec.getCofactor()),
    //                 ecSpec.getCurve().getSeed());
    //
    //             params = new X962Parameters(ecP);
    //         }
    //     }
    //
    //     BigInteger      bX = this.q.getX().toBigInteger();
    //     BigInteger      bY = this.q.getY().toBigInteger();
    //     byte[]          encKey = new byte[64];
    //
    //     extractBytes(encKey, 0, bX);
    //     extractBytes(encKey, 32, bY);
    //
    //     info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_2001, params.getDERObject()), new DEROctetString(encKey));
    // }
    // else
    // END android-removed
    {
        if (ecSpec instanceof ECNamedCurveSpec) {
            DERObjectIdentifier curveOid = ECUtil.getNamedCurveOid(((ECNamedCurveSpec) ecSpec).getName());
            if (curveOid == null) {
                curveOid = new DERObjectIdentifier(((ECNamedCurveSpec) ecSpec).getName());
            }
            params = new X962Parameters(curveOid);
        } else if (ecSpec == null) {
            params = new X962Parameters(DERNull.INSTANCE);
        } else {
            ECCurve curve = EC5Util.convertCurve(ecSpec.getCurve());
            X9ECParameters ecP = new X9ECParameters(curve, EC5Util.convertPoint(curve, ecSpec.getGenerator(), withCompression), ecSpec.getOrder(), BigInteger.valueOf(ecSpec.getCofactor()), ecSpec.getCurve().getSeed());
            params = new X962Parameters(ecP);
        }
        ECCurve curve = this.engineGetQ().getCurve();
        ASN1OctetString p = (ASN1OctetString) new X9ECPoint(curve.createPoint(this.getQ().getX().toBigInteger(), this.getQ().getY().toBigInteger(), withCompression)).getDERObject();
        info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());
    }
    return info.getDEREncoded();
}

Example 10 with DERObjectIdentifier

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

the class JDKPKCS12KeyStore method doStore.

private void doStore(OutputStream stream, char[] password, boolean useDEREncoding) throws IOException {
    if (password == null) {
        throw new NullPointerException("No password supplied for PKCS#12 KeyStore.");
    }
    //
    // handle the key
    //
    ASN1EncodableVector keyS = new ASN1EncodableVector();
    Enumeration ks = keys.keys();
    while (ks.hasMoreElements()) {
        byte[] kSalt = new byte[SALT_SIZE];
        random.nextBytes(kSalt);
        String name = (String) ks.nextElement();
        PrivateKey privKey = (PrivateKey) keys.get(name);
        PKCS12PBEParams kParams = new PKCS12PBEParams(kSalt, MIN_ITERATIONS);
        byte[] kBytes = wrapKey(keyAlgorithm.getId(), privKey, kParams, password);
        AlgorithmIdentifier kAlgId = new AlgorithmIdentifier(keyAlgorithm, kParams.getDERObject());
        org.bouncycastle.asn1.pkcs.EncryptedPrivateKeyInfo kInfo = new org.bouncycastle.asn1.pkcs.EncryptedPrivateKeyInfo(kAlgId, kBytes);
        boolean attrSet = false;
        ASN1EncodableVector kName = new ASN1EncodableVector();
        if (privKey instanceof PKCS12BagAttributeCarrier) {
            PKCS12BagAttributeCarrier bagAttrs = (PKCS12BagAttributeCarrier) privKey;
            //
            // make sure we are using the local alias on store
            //
            DERBMPString nm = (DERBMPString) bagAttrs.getBagAttribute(pkcs_9_at_friendlyName);
            if (nm == null || !nm.getString().equals(name)) {
                bagAttrs.setBagAttribute(pkcs_9_at_friendlyName, new DERBMPString(name));
            }
            //
            if (bagAttrs.getBagAttribute(pkcs_9_at_localKeyId) == null) {
                Certificate ct = engineGetCertificate(name);
                bagAttrs.setBagAttribute(pkcs_9_at_localKeyId, createSubjectKeyId(ct.getPublicKey()));
            }
            Enumeration e = bagAttrs.getBagAttributeKeys();
            while (e.hasMoreElements()) {
                DERObjectIdentifier oid = (DERObjectIdentifier) e.nextElement();
                ASN1EncodableVector kSeq = new ASN1EncodableVector();
                kSeq.add(oid);
                kSeq.add(new DERSet(bagAttrs.getBagAttribute(oid)));
                attrSet = true;
                kName.add(new DERSequence(kSeq));
            }
        }
        if (!attrSet) {
            //
            // set a default friendly name (from the key id) and local id
            //
            ASN1EncodableVector kSeq = new ASN1EncodableVector();
            Certificate ct = engineGetCertificate(name);
            kSeq.add(pkcs_9_at_localKeyId);
            kSeq.add(new DERSet(createSubjectKeyId(ct.getPublicKey())));
            kName.add(new DERSequence(kSeq));
            kSeq = new ASN1EncodableVector();
            kSeq.add(pkcs_9_at_friendlyName);
            kSeq.add(new DERSet(new DERBMPString(name)));
            kName.add(new DERSequence(kSeq));
        }
        SafeBag kBag = new SafeBag(pkcs8ShroudedKeyBag, kInfo.getDERObject(), new DERSet(kName));
        keyS.add(kBag);
    }
    byte[] keySEncoded = new DERSequence(keyS).getDEREncoded();
    BERConstructedOctetString keyString = new BERConstructedOctetString(keySEncoded);
    //
    // certificate processing
    //
    byte[] cSalt = new byte[SALT_SIZE];
    random.nextBytes(cSalt);
    ASN1EncodableVector certSeq = new ASN1EncodableVector();
    PKCS12PBEParams cParams = new PKCS12PBEParams(cSalt, MIN_ITERATIONS);
    AlgorithmIdentifier cAlgId = new AlgorithmIdentifier(certAlgorithm, cParams.getDERObject());
    Hashtable doneCerts = new Hashtable();
    Enumeration cs = keys.keys();
    while (cs.hasMoreElements()) {
        try {
            String name = (String) cs.nextElement();
            Certificate cert = engineGetCertificate(name);
            boolean cAttrSet = false;
            CertBag cBag = new CertBag(x509Certificate, new DEROctetString(cert.getEncoded()));
            ASN1EncodableVector fName = new ASN1EncodableVector();
            if (cert instanceof PKCS12BagAttributeCarrier) {
                PKCS12BagAttributeCarrier bagAttrs = (PKCS12BagAttributeCarrier) cert;
                //
                // make sure we are using the local alias on store
                //
                DERBMPString nm = (DERBMPString) bagAttrs.getBagAttribute(pkcs_9_at_friendlyName);
                if (nm == null || !nm.getString().equals(name)) {
                    bagAttrs.setBagAttribute(pkcs_9_at_friendlyName, new DERBMPString(name));
                }
                //
                if (bagAttrs.getBagAttribute(pkcs_9_at_localKeyId) == null) {
                    bagAttrs.setBagAttribute(pkcs_9_at_localKeyId, createSubjectKeyId(cert.getPublicKey()));
                }
                Enumeration e = bagAttrs.getBagAttributeKeys();
                while (e.hasMoreElements()) {
                    DERObjectIdentifier oid = (DERObjectIdentifier) e.nextElement();
                    ASN1EncodableVector fSeq = new ASN1EncodableVector();
                    fSeq.add(oid);
                    fSeq.add(new DERSet(bagAttrs.getBagAttribute(oid)));
                    fName.add(new DERSequence(fSeq));
                    cAttrSet = true;
                }
            }
            if (!cAttrSet) {
                ASN1EncodableVector fSeq = new ASN1EncodableVector();
                fSeq.add(pkcs_9_at_localKeyId);
                fSeq.add(new DERSet(createSubjectKeyId(cert.getPublicKey())));
                fName.add(new DERSequence(fSeq));
                fSeq = new ASN1EncodableVector();
                fSeq.add(pkcs_9_at_friendlyName);
                fSeq.add(new DERSet(new DERBMPString(name)));
                fName.add(new DERSequence(fSeq));
            }
            SafeBag sBag = new SafeBag(certBag, cBag.getDERObject(), new DERSet(fName));
            certSeq.add(sBag);
            doneCerts.put(cert, cert);
        } catch (CertificateEncodingException e) {
            throw new IOException("Error encoding certificate: " + e.toString());
        }
    }
    cs = certs.keys();
    while (cs.hasMoreElements()) {
        try {
            String certId = (String) cs.nextElement();
            Certificate cert = (Certificate) certs.get(certId);
            boolean cAttrSet = false;
            if (keys.get(certId) != null) {
                continue;
            }
            CertBag cBag = new CertBag(x509Certificate, new DEROctetString(cert.getEncoded()));
            ASN1EncodableVector fName = new ASN1EncodableVector();
            if (cert instanceof PKCS12BagAttributeCarrier) {
                PKCS12BagAttributeCarrier bagAttrs = (PKCS12BagAttributeCarrier) cert;
                //
                // make sure we are using the local alias on store
                //
                DERBMPString nm = (DERBMPString) bagAttrs.getBagAttribute(pkcs_9_at_friendlyName);
                if (nm == null || !nm.getString().equals(certId)) {
                    bagAttrs.setBagAttribute(pkcs_9_at_friendlyName, new DERBMPString(certId));
                }
                Enumeration e = bagAttrs.getBagAttributeKeys();
                while (e.hasMoreElements()) {
                    DERObjectIdentifier oid = (DERObjectIdentifier) e.nextElement();
                    // If we find one, we'll prune it out.
                    if (oid.equals(PKCSObjectIdentifiers.pkcs_9_at_localKeyId)) {
                        continue;
                    }
                    ASN1EncodableVector fSeq = new ASN1EncodableVector();
                    fSeq.add(oid);
                    fSeq.add(new DERSet(bagAttrs.getBagAttribute(oid)));
                    fName.add(new DERSequence(fSeq));
                    cAttrSet = true;
                }
            }
            if (!cAttrSet) {
                ASN1EncodableVector fSeq = new ASN1EncodableVector();
                fSeq.add(pkcs_9_at_friendlyName);
                fSeq.add(new DERSet(new DERBMPString(certId)));
                fName.add(new DERSequence(fSeq));
            }
            SafeBag sBag = new SafeBag(certBag, cBag.getDERObject(), new DERSet(fName));
            certSeq.add(sBag);
            doneCerts.put(cert, cert);
        } catch (CertificateEncodingException e) {
            throw new IOException("Error encoding certificate: " + e.toString());
        }
    }
    cs = chainCerts.keys();
    while (cs.hasMoreElements()) {
        try {
            CertId certId = (CertId) cs.nextElement();
            Certificate cert = (Certificate) chainCerts.get(certId);
            if (doneCerts.get(cert) != null) {
                continue;
            }
            CertBag cBag = new CertBag(x509Certificate, new DEROctetString(cert.getEncoded()));
            ASN1EncodableVector fName = new ASN1EncodableVector();
            if (cert instanceof PKCS12BagAttributeCarrier) {
                PKCS12BagAttributeCarrier bagAttrs = (PKCS12BagAttributeCarrier) cert;
                Enumeration e = bagAttrs.getBagAttributeKeys();
                while (e.hasMoreElements()) {
                    DERObjectIdentifier oid = (DERObjectIdentifier) e.nextElement();
                    // If we find one, we'll prune it out.
                    if (oid.equals(PKCSObjectIdentifiers.pkcs_9_at_localKeyId)) {
                        continue;
                    }
                    ASN1EncodableVector fSeq = new ASN1EncodableVector();
                    fSeq.add(oid);
                    fSeq.add(new DERSet(bagAttrs.getBagAttribute(oid)));
                    fName.add(new DERSequence(fSeq));
                }
            }
            SafeBag sBag = new SafeBag(certBag, cBag.getDERObject(), new DERSet(fName));
            certSeq.add(sBag);
        } catch (CertificateEncodingException e) {
            throw new IOException("Error encoding certificate: " + e.toString());
        }
    }
    byte[] certSeqEncoded = new DERSequence(certSeq).getDEREncoded();
    byte[] certBytes = cryptData(true, cAlgId, password, false, certSeqEncoded);
    EncryptedData cInfo = new EncryptedData(data, cAlgId, new BERConstructedOctetString(certBytes));
    ContentInfo[] info = new ContentInfo[] { new ContentInfo(data, keyString), new ContentInfo(encryptedData, cInfo.getDERObject()) };
    AuthenticatedSafe auth = new AuthenticatedSafe(info);
    ByteArrayOutputStream bOut = new ByteArrayOutputStream();
    DEROutputStream asn1Out;
    if (useDEREncoding) {
        asn1Out = new DEROutputStream(bOut);
    } else {
        asn1Out = new BEROutputStream(bOut);
    }
    asn1Out.writeObject(auth);
    byte[] pkg = bOut.toByteArray();
    ContentInfo mainInfo = new ContentInfo(data, new BERConstructedOctetString(pkg));
    //
    // create the mac
    //
    byte[] mSalt = new byte[20];
    int itCount = MIN_ITERATIONS;
    random.nextBytes(mSalt);
    byte[] data = ((ASN1OctetString) mainInfo.getContent()).getOctets();
    MacData mData;
    try {
        byte[] res = calculatePbeMac(id_SHA1, mSalt, itCount, password, false, data);
        // BEGIN android-changed
        AlgorithmIdentifier algId = new AlgorithmIdentifier(id_SHA1, DERNull.INSTANCE);
        // END android-changed
        DigestInfo dInfo = new DigestInfo(algId, res);
        mData = new MacData(dInfo, mSalt, itCount);
    } catch (Exception e) {
        throw new IOException("error constructing MAC: " + e.toString());
    }
    //
    // output the Pfx
    //
    Pfx pfx = new Pfx(mainInfo, mData);
    if (useDEREncoding) {
        asn1Out = new DEROutputStream(stream);
    } else {
        asn1Out = new BEROutputStream(stream);
    }
    asn1Out.writeObject(pfx);
}