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

Example 91 with ASN1OctetString

use of org.openecard.bouncycastle.asn1.ASN1OctetString in project jruby-openssl by jruby.

the class ASN1 method decodeObject.

// ObjectId
static IRubyObject decodeObject(final ThreadContext context, final RubyModule ASN1, final org.bouncycastle.asn1.ASN1Encodable obj) throws IOException, IllegalArgumentException {
    final Ruby runtime = context.runtime;
    if (obj instanceof ASN1Integer) {
        final BN val = BN.newBN(runtime, ((ASN1Integer) obj).getValue());
        return ASN1.getClass("Integer").callMethod(context, "new", val);
    }
    if (obj instanceof DERInteger) {
        final BN val = BN.newBN(runtime, ((DERInteger) obj).getValue());
        return ASN1.getClass("Integer").callMethod(context, "new", val);
    }
    if (obj instanceof DERBitString) {
        final DERBitString derObj = (DERBitString) obj;
        RubyString str = runtime.newString(new ByteList(derObj.getBytes(), false));
        IRubyObject bitString = ASN1.getClass("BitString").callMethod(context, "new", str);
        bitString.callMethod(context, "unused_bits=", runtime.newFixnum(derObj.getPadBits()));
        return bitString;
    }
    if (obj instanceof ASN1String) {
        final Integer typeId = typeId(obj.getClass());
        String type = typeId == null ? null : (String) (ASN1_INFO[typeId][2]);
        final ByteList bytes;
        if (obj instanceof DERUTF8String) {
            if (type == null)
                type = "UTF8String";
            bytes = new ByteList(((DERUTF8String) obj).getString().getBytes("UTF-8"), false);
        } else {
            if (type == null) {
                if (obj instanceof DERNumericString) {
                    type = "NumericString";
                } else if (obj instanceof DERPrintableString) {
                    type = "PrintableString";
                } else if (obj instanceof DERIA5String) {
                    type = "IA5String";
                } else if (obj instanceof DERT61String) {
                    type = "T61String";
                } else if (obj instanceof DERGeneralString) {
                    type = "GeneralString";
                } else if (obj instanceof DERUniversalString) {
                    type = "UniversalString";
                } else if (obj instanceof DERBMPString) {
                    type = "BMPString";
                } else {
                    // NOTE "VideotexString", "GraphicString", "ISO64String" not-handled in BC !
                    throw new IllegalArgumentException("could not handle ASN1 string type: " + obj + " (" + obj.getClass().getName() + ")");
                }
            }
            bytes = ByteList.create(((ASN1String) obj).getString());
        }
        return ASN1.getClass(type).callMethod(context, "new", runtime.newString(bytes));
    }
    if (obj instanceof ASN1OctetString) {
        final ByteList octets = new ByteList(((ASN1OctetString) obj).getOctets(), false);
        // final ByteList octets = new ByteList(((ASN1OctetString) obj).getEncoded(ASN1Encoding.DER), false);
        return ASN1.getClass("OctetString").callMethod(context, "new", runtime.newString(octets));
    }
    if (obj instanceof ASN1Null) {
        return ASN1.getClass("Null").callMethod(context, "new", runtime.getNil());
    }
    if (obj instanceof ASN1Boolean) {
        final boolean val = ((ASN1Boolean) obj).isTrue();
        return ASN1.getClass("Boolean").callMethod(context, "new", runtime.newBoolean(val));
    }
    // DERBoolean extends ASN1Boolean only since 1.51 (<= 1.50 the other way around)
    if (obj instanceof DERBoolean) {
        final boolean val = ((DERBoolean) obj).isTrue();
        return ASN1.getClass("Boolean").callMethod(context, "new", runtime.newBoolean(val));
    }
    if (obj instanceof ASN1UTCTime) {
        final Date adjustedTime;
        try {
            adjustedTime = ((ASN1UTCTime) obj).getAdjustedDate();
        } catch (ParseException e) {
            throw new IOException(e);
        }
        final RubyTime time = RubyTime.newTime(runtime, adjustedTime.getTime());
        return ASN1.getClass("UTCTime").callMethod(context, "new", time);
    }
    // NOTE: keep for BC versions compatibility ... extends ASN1UTCTime (since BC 1.51)
    if (obj instanceof DERUTCTime) {
        final Date adjustedTime;
        try {
            adjustedTime = ((DERUTCTime) obj).getAdjustedDate();
        } catch (ParseException e) {
            throw new IOException(e);
        }
        final RubyTime time = RubyTime.newTime(runtime, adjustedTime.getTime());
        return ASN1.getClass("UTCTime").callMethod(context, "new", time);
    }
    if (obj instanceof ASN1GeneralizedTime) {
        final Date generalTime;
        try {
            generalTime = ((ASN1GeneralizedTime) obj).getDate();
        } catch (ParseException e) {
            throw new IOException(e);
        }
        final RubyTime time = RubyTime.newTime(runtime, generalTime.getTime());
        return ASN1.getClass("GeneralizedTime").callMethod(context, "new", time);
    }
    // NOTE: keep for BC versions compatibility ... extends ASN1GeneralizedTime (since BC 1.51)
    if (obj instanceof DERGeneralizedTime) {
        final Date generalTime;
        try {
            generalTime = ((DERGeneralizedTime) obj).getDate();
        } catch (ParseException e) {
            throw new IOException(e);
        }
        final RubyTime time = RubyTime.newTime(runtime, generalTime.getTime());
        return ASN1.getClass("GeneralizedTime").callMethod(context, "new", time);
    }
    if (obj instanceof ASN1ObjectIdentifier) {
        final String objId = ((ASN1ObjectIdentifier) obj).getId();
        return ASN1.getClass("ObjectId").callMethod(context, "new", runtime.newString(objId));
    }
    // DERObjectIdentifier extends ASN1ObjectIdentifier = 1.51
    if (obj instanceof DERObjectIdentifier) {
        final String objId = ((DERObjectIdentifier) obj).getId();
        return ASN1.getClass("ObjectId").callMethod(context, "new", runtime.newString(objId));
    }
    if (obj instanceof ASN1TaggedObject) {
        final ASN1TaggedObject taggedObj = (ASN1TaggedObject) obj;
        IRubyObject val = decodeObject(context, ASN1, taggedObj.getObject());
        IRubyObject tag = runtime.newFixnum(taggedObj.getTagNo());
        IRubyObject tag_class = runtime.newSymbol("CONTEXT_SPECIFIC");
        final RubyArray valArr = runtime.newArray(val);
        return ASN1.getClass("ASN1Data").callMethod(context, "new", new IRubyObject[] { valArr, tag, tag_class });
    }
    if (obj instanceof DERApplicationSpecific) {
        final DERApplicationSpecific appSpecific = (DERApplicationSpecific) obj;
        IRubyObject tag = runtime.newFixnum(appSpecific.getApplicationTag());
        IRubyObject tag_class = runtime.newSymbol("APPLICATION");
        final ASN1Sequence sequence = (ASN1Sequence) appSpecific.getObject(SEQUENCE);
        @SuppressWarnings("unchecked") final RubyArray valArr = decodeObjects(context, ASN1, sequence.getObjects());
        return ASN1.getClass("ASN1Data").callMethod(context, "new", new IRubyObject[] { valArr, tag, tag_class });
    }
    if (obj instanceof ASN1Sequence) {
        @SuppressWarnings("unchecked") RubyArray arr = decodeObjects(context, ASN1, ((ASN1Sequence) obj).getObjects());
        return ASN1.getClass("Sequence").callMethod(context, "new", arr);
    }
    if (obj instanceof ASN1Set) {
        @SuppressWarnings("unchecked") RubyArray arr = decodeObjects(context, ASN1, ((ASN1Set) obj).getObjects());
        return ASN1.getClass("Set").callMethod(context, "new", arr);
    }
    if (obj instanceof ASN1Enumerated) {
        final RubyInteger value = RubyBignum.bignorm(runtime, ((ASN1Enumerated) obj).getValue());
        return ASN1.getClass("Enumerated").callMethod(context, "new", value);
    }
    throw new IllegalArgumentException("unable to decode object: " + obj + " (" + (obj == null ? "" : obj.getClass().getName()) + ")");
}

Example 92 with ASN1OctetString

use of org.openecard.bouncycastle.asn1.ASN1OctetString in project jruby-openssl by jruby.

the class PKCS7 method dataDecode.

/**
 * c: PKCS7_dataDecode
 */
public BIO dataDecode(PrivateKey pkey, BIO inBio, X509AuxCertificate pcert) throws PKCS7Exception {
    BIO out = null;
    BIO btmp;
    BIO etmp;
    BIO bio;
    byte[] dataBody = null;
    Collection<AlgorithmIdentifier> mdSk = null;
    Collection<RecipInfo> rsk = null;
    AlgorithmIdentifier encAlg = null;
    Cipher evpCipher = null;
    RecipInfo ri = null;
    int i = getType();
    switch(i) {
        case ASN1Registry.NID_pkcs7_signed:
            dataBody = getSign().getContents().getOctetString().getOctets();
            mdSk = getSign().getMdAlgs();
            break;
        case ASN1Registry.NID_pkcs7_signedAndEnveloped:
            rsk = getSignedAndEnveloped().getRecipientInfo();
            mdSk = getSignedAndEnveloped().getMdAlgs();
            dataBody = getSignedAndEnveloped().getEncData().getEncData().getOctets();
            encAlg = getSignedAndEnveloped().getEncData().getAlgorithm();
            try {
                evpCipher = EVP.getCipher(encAlg.getAlgorithm());
            } catch (Exception e) {
                e.printStackTrace(System.err);
                throw new PKCS7Exception(F_PKCS7_DATADECODE, R_UNSUPPORTED_CIPHER_TYPE, e);
            }
            break;
        case ASN1Registry.NID_pkcs7_enveloped:
            rsk = getEnveloped().getRecipientInfo();
            dataBody = getEnveloped().getEncData().getEncData().getOctets();
            encAlg = getEnveloped().getEncData().getAlgorithm();
            try {
                evpCipher = EVP.getCipher(encAlg.getAlgorithm());
            } catch (Exception e) {
                e.printStackTrace(System.err);
                throw new PKCS7Exception(F_PKCS7_DATADECODE, R_UNSUPPORTED_CIPHER_TYPE, e);
            }
            break;
        default:
            throw new PKCS7Exception(F_PKCS7_DATADECODE, R_UNSUPPORTED_CONTENT_TYPE);
    }
    /* We will be checking the signature */
    if (mdSk != null) {
        for (AlgorithmIdentifier xa : mdSk) {
            try {
                MessageDigest evpMd = EVP.getDigest(xa.getAlgorithm());
                btmp = BIO.mdFilter(evpMd);
                if (out == null) {
                    out = btmp;
                } else {
                    out.push(btmp);
                }
            } catch (Exception e) {
                e.printStackTrace(System.err);
                throw new PKCS7Exception(F_PKCS7_DATADECODE, R_UNKNOWN_DIGEST_TYPE, e);
            }
        }
    }
    if (evpCipher != null) {
        /* Find the recipientInfo which matches the passed certificate
             * (if any)
             */
        if (pcert != null) {
            for (Iterator<RecipInfo> iter = rsk.iterator(); iter.hasNext(); ) {
                ri = iter.next();
                if (ri.compare(pcert)) {
                    break;
                }
                ri = null;
            }
            if (null == ri) {
                throw new PKCS7Exception(F_PKCS7_DATADECODE, R_NO_RECIPIENT_MATCHES_CERTIFICATE);
            }
        }
        byte[] tmp = null;
        /* If we haven't got a certificate try each ri in turn */
        if (null == pcert) {
            for (Iterator<RecipInfo> iter = rsk.iterator(); iter.hasNext(); ) {
                ri = iter.next();
                try {
                    tmp = EVP.decrypt(ri.getEncKey().getOctets(), pkey);
                    if (tmp != null) {
                        break;
                    }
                } catch (Exception e) {
                    tmp = null;
                }
                ri = null;
            }
            if (ri == null) {
                throw new PKCS7Exception(F_PKCS7_DATADECODE, R_NO_RECIPIENT_MATCHES_KEY);
            }
        } else {
            try {
                Cipher cipher = SecurityHelper.getCipher(CipherSpec.getWrappingAlgorithm(pkey.getAlgorithm()));
                cipher.init(Cipher.DECRYPT_MODE, pkey);
                tmp = cipher.doFinal(ri.getEncKey().getOctets());
            } catch (Exception e) {
                e.printStackTrace(System.err);
                throw new PKCS7Exception(F_PKCS7_DATADECODE, -1, e);
            }
        }
        ASN1Encodable params = encAlg.getParameters();
        try {
            String algo = org.jruby.ext.openssl.Cipher.Algorithm.getAlgorithmBase(evpCipher);
            if (params != null && params instanceof ASN1OctetString) {
                if (algo.startsWith("RC2")) {
                    // J9's IBMJCE needs this exceptional RC2 support.
                    // Giving IvParameterSpec throws 'Illegal parameter' on IBMJCE.
                    SecretKeySpec sks = new SecretKeySpec(tmp, algo);
                    RC2ParameterSpec s = new RC2ParameterSpec(tmp.length * 8, ((ASN1OctetString) params).getOctets());
                    evpCipher.init(Cipher.DECRYPT_MODE, sks, s);
                } else {
                    SecretKeySpec sks = new SecretKeySpec(tmp, algo);
                    IvParameterSpec iv = new IvParameterSpec(((ASN1OctetString) params).getOctets());
                    evpCipher.init(Cipher.DECRYPT_MODE, sks, iv);
                }
            } else {
                evpCipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(tmp, algo));
            }
        } catch (Exception e) {
            e.printStackTrace(System.err);
            throw new PKCS7Exception(F_PKCS7_DATADECODE, -1, e);
        }
        etmp = BIO.cipherFilter(evpCipher);
        if (out == null) {
            out = etmp;
        } else {
            out.push(etmp);
        }
    }
    if (isDetached() || inBio != null) {
        bio = inBio;
    } else {
        if (dataBody != null && dataBody.length > 0) {
            bio = BIO.memBuf(dataBody);
        } else {
            bio = BIO.mem();
        }
    }
    out.push(bio);
    return out;
}

Example 93 with ASN1OctetString

use of org.openecard.bouncycastle.asn1.ASN1OctetString in project jruby-openssl by jruby.

the class PKCS7 method signatureVerify.

/* c: PKCS7_signatureVerify
     *
     */
public void signatureVerify(BIO bio, SignerInfoWithPkey si, X509AuxCertificate x509) throws PKCS7Exception {
    if (!isSigned() && !isSignedAndEnveloped()) {
        throw new PKCS7Exception(F_PKCS7_SIGNATUREVERIFY, R_WRONG_PKCS7_TYPE);
    }
    final int md_type = ASN1Registry.oid2nid(si.getDigestAlgorithm().getAlgorithm());
    BIO btmp = bio;
    MessageDigest mdc = null;
    for (; ; ) {
        if (btmp == null || (btmp = bio.findType(BIO.TYPE_MD)) == null) {
            throw new PKCS7Exception(F_PKCS7_SIGNATUREVERIFY, R_UNABLE_TO_FIND_MESSAGE_DIGEST);
        }
        mdc = ((MessageDigestBIOFilter) btmp).getMessageDigest();
        if (null == mdc) {
            throw new PKCS7Exception(F_PKCS7_SIGNATUREVERIFY, -1);
        }
        if (EVP.type(mdc) == md_type)
            break;
        btmp = btmp.next();
    }
    MessageDigest mdc_tmp = null;
    try {
        mdc_tmp = (MessageDigest) mdc.clone();
    } catch (Exception e) {
    }
    byte[] currentData = new byte[0];
    ASN1Set sk = si.getAuthenticatedAttributes();
    try {
        if (sk != null && sk.size() > 0) {
            byte[] md_dat = mdc_tmp.digest();
            ASN1OctetString message_digest = digestFromAttributes(sk);
            if (message_digest == null) {
                throw new PKCS7Exception(F_PKCS7_SIGNATUREVERIFY, R_UNABLE_TO_FIND_MESSAGE_DIGEST);
            }
            if (!Arrays.equals(md_dat, message_digest.getOctets())) {
                throw new NotVerifiedPKCS7Exception();
            }
            currentData = sk.getEncoded();
        }
        ASN1OctetString os = si.getEncryptedDigest();
        PublicKey pkey = x509.getPublicKey();
        Signature sign = SecurityHelper.getSignature(EVP.signatureAlgorithm(mdc_tmp, pkey));
        sign.initVerify(pkey);
        if (currentData.length > 0) {
            sign.update(currentData);
        }
        if (!sign.verify(os.getOctets())) {
            throw new NotVerifiedPKCS7Exception();
        }
    } catch (NotVerifiedPKCS7Exception e) {
        throw e;
    } catch (Exception e) {
        System.err.println("Other exception");
        e.printStackTrace(System.err);
        throw new NotVerifiedPKCS7Exception();
    }
}

Example 94 with ASN1OctetString

use of org.openecard.bouncycastle.asn1.ASN1OctetString in project jruby-openssl by jruby.

the class PKCS7 method dataInit.

/**
 * c: PKCS7_dataInit
 */
public BIO dataInit(BIO bio) throws PKCS7Exception {
    Collection<AlgorithmIdentifier> mdSk = null;
    ASN1OctetString os = null;
    int i = this.data.getType();
    Collection<RecipInfo> rsk = null;
    AlgorithmIdentifier xa = null;
    CipherSpec evpCipher = null;
    BIO out = null;
    BIO btmp = null;
    EncContent enc = null;
    switch(i) {
        case ASN1Registry.NID_pkcs7_signed:
            mdSk = getSign().getMdAlgs();
            os = getSign().getContents().getOctetString();
            break;
        case ASN1Registry.NID_pkcs7_signedAndEnveloped:
            rsk = getSignedAndEnveloped().getRecipientInfo();
            mdSk = getSignedAndEnveloped().getMdAlgs();
            enc = getSignedAndEnveloped().getEncData();
            evpCipher = getSignedAndEnveloped().getEncData().getCipher();
            if (null == evpCipher) {
                throw new PKCS7Exception(F_PKCS7_DATAINIT, R_CIPHER_NOT_INITIALIZED);
            }
            break;
        case ASN1Registry.NID_pkcs7_enveloped:
            rsk = getEnveloped().getRecipientInfo();
            enc = getEnveloped().getEncData();
            evpCipher = getEnveloped().getEncData().getCipher();
            if (null == evpCipher) {
                throw new PKCS7Exception(F_PKCS7_DATAINIT, R_CIPHER_NOT_INITIALIZED);
            }
            break;
        case ASN1Registry.NID_pkcs7_digest:
            xa = getDigest().getMd();
            os = getDigest().getContents().getOctetString();
            break;
        default:
            throw new PKCS7Exception(F_PKCS7_DATAINIT, R_UNSUPPORTED_CONTENT_TYPE);
    }
    if (mdSk != null) {
        for (AlgorithmIdentifier ai : mdSk) {
            if ((out = bioAddDigest(out, ai)) == null) {
                return null;
            }
        }
    }
    if (xa != null && (out = bioAddDigest(out, xa)) == null) {
        return null;
    }
    if (evpCipher != null) {
        byte[] tmp;
        btmp = BIO.cipherFilter(evpCipher.getCipher());
        String algoBase = evpCipher.getCipher().getAlgorithm();
        if (algoBase.indexOf('/') != -1) {
            algoBase = algoBase.split("/")[0];
        }
        try {
            KeyGenerator gen = SecurityHelper.getKeyGenerator(algoBase);
            gen.init(evpCipher.getKeyLenInBits(), SecurityHelper.getSecureRandom());
            SecretKey key = gen.generateKey();
            evpCipher.getCipher().init(Cipher.ENCRYPT_MODE, key);
            if (null != rsk) {
                for (RecipInfo ri : rsk) {
                    PublicKey pkey = ri.getCert().getPublicKey();
                    Cipher cipher = SecurityHelper.getCipher(CipherSpec.getWrappingAlgorithm(pkey.getAlgorithm()));
                    cipher.init(Cipher.ENCRYPT_MODE, pkey);
                    tmp = cipher.doFinal(key.getEncoded());
                    ri.setEncKey(new DEROctetString(tmp));
                }
            }
        } catch (Exception e) {
            e.printStackTrace(System.err);
            throw new PKCS7Exception(F_PKCS7_DATAINIT, R_ERROR_SETTING_CIPHER, e);
        }
        ASN1ObjectIdentifier encAlgo = ASN1Registry.sym2oid(evpCipher.getOsslName());
        if (encAlgo == null) {
            throw new PKCS7Exception(F_PKCS7_DATAINIT, R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
        }
        if (evpCipher.getCipher().getIV() != null) {
            enc.setAlgorithm(new AlgorithmIdentifier(encAlgo, new DEROctetString(evpCipher.getCipher().getIV())));
        } else {
            enc.setAlgorithm(new AlgorithmIdentifier(encAlgo));
        }
        if (out == null) {
            out = btmp;
        } else {
            out.push(btmp);
        }
    }
    if (bio == null) {
        if (isDetached()) {
            bio = BIO.nullSink();
        } else if (os != null && os.getOctets().length > 0) {
            bio = BIO.memBuf(os.getOctets());
        }
        if (bio == null) {
            bio = BIO.mem();
            bio.setMemEofReturn(0);
        }
    }
    if (out != null) {
        out.push(bio);
    } else {
        out = bio;
    }
    return out;
}

Example 95 with ASN1OctetString

use of org.openecard.bouncycastle.asn1.ASN1OctetString in project jruby-openssl by jruby.

the class PKCS7 method dataFinal.

/**
 * c: PKCS7_dataFinal
 */
public int dataFinal(BIO bio) throws PKCS7Exception {
    Collection<SignerInfoWithPkey> siSk = null;
    BIO btmp;
    byte[] buf;
    MessageDigest mdc = null;
    MessageDigest ctx_tmp = null;
    ASN1Set sk;
    int i = this.data.getType();
    switch(i) {
        case ASN1Registry.NID_pkcs7_signedAndEnveloped:
            siSk = getSignedAndEnveloped().getSignerInfo();
            break;
        case ASN1Registry.NID_pkcs7_signed:
            siSk = getSign().getSignerInfo();
            break;
        case ASN1Registry.NID_pkcs7_digest:
            break;
        default:
            break;
    }
    if (siSk != null) {
        for (SignerInfoWithPkey si : siSk) {
            if (si.getPkey() == null) {
                continue;
            }
            int j = ASN1Registry.oid2nid(si.getDigestAlgorithm().getAlgorithm());
            btmp = bio;
            MessageDigest[] _mdc = new MessageDigest[] { mdc };
            btmp = findDigest(_mdc, btmp, j);
            mdc = _mdc[0];
            if (btmp == null) {
                return 0;
            }
            try {
                ctx_tmp = (MessageDigest) mdc.clone();
            } catch (CloneNotSupportedException e) {
                throw new RuntimeException(e);
            }
            sk = si.getAuthenticatedAttributes();
            Signature sign = null;
            try {
                if (sk != null && sk.size() > 0) {
                    /* Add signing time if not already present */
                    if (null == si.getSignedAttribute(ASN1Registry.NID_pkcs9_signingTime)) {
                        DERUTCTime signTime = new DERUTCTime(Calendar.getInstance(TimeZone.getTimeZone("UTC")).getTime());
                        si.addSignedAttribute(ASN1Registry.NID_pkcs9_signingTime, signTime);
                    }
                    byte[] md_data = ctx_tmp.digest();
                    ASN1OctetString digest = new DEROctetString(md_data);
                    si.addSignedAttribute(ASN1Registry.NID_pkcs9_messageDigest, digest);
                    sk = si.getAuthenticatedAttributes();
                    sign = SecurityHelper.getSignature(EVP.signatureAlgorithm(ctx_tmp, si.getPkey()));
                    sign.initSign(si.getPkey());
                    byte[] abuf = sk.getEncoded();
                    sign.update(abuf);
                }
                if (sign != null) {
                    byte[] out = sign.sign();
                    si.setEncryptedDigest(new DEROctetString(out));
                }
            } catch (Exception e) {
                throw new PKCS7Exception(F_PKCS7_DATAFINAL, -1, e);
            }
        }
    } else if (i == ASN1Registry.NID_pkcs7_digest) {
        int nid = ASN1Registry.oid2nid(getDigest().getMd().getAlgorithm());
        MessageDigest[] _mdc = new MessageDigest[] { mdc };
        bio = findDigest(_mdc, bio, nid);
        mdc = _mdc[0];
        byte[] md_data = mdc.digest();
        ASN1OctetString digest = new DEROctetString(md_data);
        getDigest().setDigest(digest);
    }
    if (!isDetached()) {
        btmp = bio.findType(BIO.TYPE_MEM);
        if (null == btmp) {
            throw new PKCS7Exception(F_PKCS7_DATAFINAL, R_UNABLE_TO_FIND_MEM_BIO);
        }
        buf = ((MemBIO) btmp).getMemCopy();
        switch(i) {
            case ASN1Registry.NID_pkcs7_signedAndEnveloped:
                getSignedAndEnveloped().getEncData().setEncData(new DEROctetString(buf));
                break;
            case ASN1Registry.NID_pkcs7_enveloped:
                getEnveloped().getEncData().setEncData(new DEROctetString(buf));
                break;
            case ASN1Registry.NID_pkcs7_signed:
                if (getSign().getContents().isData() && getDetached() != 0) {
                    getSign().getContents().setData(null);
                } else {
                    getSign().getContents().setData(new DEROctetString(buf));
                }
                break;
            case ASN1Registry.NID_pkcs7_digest:
                if (getDigest().getContents().isData() && getDetached() != 0) {
                    getDigest().getContents().setData(null);
                } else {
                    getDigest().getContents().setData(new DEROctetString(buf));
                }
                break;
        }
    }
    return 1;
}