Examples with DERSet com.github.zhenwei.core.asn1.DERSet used on opensource projects

Example 36 with DERSet

use of com.github.zhenwei.core.asn1.DERSet in project LinLong-Java by zhenwei1108.

the class CMSAuthenticatedDataGenerator method generate.

/**
 * Generate an authenticated data object from the passed in typedData and MacCalculator.
 *
 * @param typedData        the data to have a MAC attached.
 * @param macCalculator    the calculator of the MAC to be attached.
 * @param digestCalculator calculator for computing digest of the encapsulated data.
 * @return the resulting CMSAuthenticatedData object.
 * @throws CMSException on failure in encoding data or processing recipients.
 */
public CMSAuthenticatedData generate(CMSTypedData typedData, MacCalculator macCalculator, final DigestCalculator digestCalculator) throws CMSException {
    ASN1EncodableVector recipientInfos = new ASN1EncodableVector();
    ASN1OctetString encContent;
    ASN1OctetString macResult;
    for (Iterator it = recipientInfoGenerators.iterator(); it.hasNext(); ) {
        RecipientInfoGenerator recipient = (RecipientInfoGenerator) it.next();
        recipientInfos.add(recipient.generate(macCalculator.getKey()));
    }
    AuthenticatedData authData;
    if (digestCalculator != null) {
        try {
            ByteArrayOutputStream bOut = new ByteArrayOutputStream();
            OutputStream out = new TeeOutputStream(digestCalculator.getOutputStream(), bOut);
            typedData.write(out);
            out.close();
            encContent = new BEROctetString(bOut.toByteArray());
        } catch (IOException e) {
            throw new CMSException("unable to perform digest calculation: " + e.getMessage(), e);
        }
        Map parameters = Collections.unmodifiableMap(getBaseParameters(typedData.getContentType(), digestCalculator.getAlgorithmIdentifier(), macCalculator.getAlgorithmIdentifier(), digestCalculator.getDigest()));
        if (authGen == null) {
            authGen = new DefaultAuthenticatedAttributeTableGenerator();
        }
        ASN1Set authed = new DERSet(authGen.getAttributes(parameters).toASN1EncodableVector());
        try {
            OutputStream mOut = macCalculator.getOutputStream();
            mOut.write(authed.getEncoded(ASN1Encoding.DER));
            mOut.close();
            macResult = new DEROctetString(macCalculator.getMac());
        } catch (IOException e) {
            throw new CMSException("unable to perform MAC calculation: " + e.getMessage(), e);
        }
        ASN1Set unauthed = (unauthGen != null) ? new BERSet(unauthGen.getAttributes(parameters).toASN1EncodableVector()) : null;
        ContentInfo eci = new ContentInfo(typedData.getContentType(), encContent);
        authData = new AuthenticatedData(originatorInfo, new DERSet(recipientInfos), macCalculator.getAlgorithmIdentifier(), digestCalculator.getAlgorithmIdentifier(), eci, authed, macResult, unauthed);
    } else {
        try {
            ByteArrayOutputStream bOut = new ByteArrayOutputStream();
            OutputStream mOut = new TeeOutputStream(bOut, macCalculator.getOutputStream());
            typedData.write(mOut);
            mOut.close();
            encContent = new BEROctetString(bOut.toByteArray());
            macResult = new DEROctetString(macCalculator.getMac());
        } catch (IOException e) {
            throw new CMSException("unable to perform MAC calculation: " + e.getMessage(), e);
        }
        ASN1Set unauthed = (unauthGen != null) ? new BERSet(unauthGen.getAttributes(Collections.EMPTY_MAP).toASN1EncodableVector()) : null;
        ContentInfo eci = new ContentInfo(typedData.getContentType(), encContent);
        authData = new AuthenticatedData(originatorInfo, new DERSet(recipientInfos), macCalculator.getAlgorithmIdentifier(), null, eci, null, macResult, unauthed);
    }
    ContentInfo contentInfo = new ContentInfo(CMSObjectIdentifiers.authenticatedData, authData);
    return new CMSAuthenticatedData(contentInfo, new DigestCalculatorProvider() {

        public DigestCalculator get(AlgorithmIdentifier digestAlgorithmIdentifier) throws OperatorCreationException {
            return digestCalculator;
        }
    });
}

Example 37 with DERSet

use of com.github.zhenwei.core.asn1.DERSet in project LinLong-Java by zhenwei1108.

the class CMSAuthenticatedDataParser method getUnauthAttrs.

/**
 * return a table of the unauthenticated attributes indexed by the OID of the attribute.
 *
 * @throws IOException
 */
public AttributeTable getUnauthAttrs() throws IOException {
    if (unauthAttrs == null && unauthAttrNotRead) {
        ASN1SetParser set = authData.getUnauthAttrs();
        unauthAttrNotRead = false;
        if (set != null) {
            ASN1EncodableVector v = new ASN1EncodableVector();
            ASN1Encodable o;
            while ((o = set.readObject()) != null) {
                ASN1SequenceParser seq = (ASN1SequenceParser) o;
                v.add(seq.toASN1Primitive());
            }
            unauthAttrs = new AttributeTable(new DERSet(v));
        }
    }
    return unauthAttrs;
}

Example 38 with DERSet

use of com.github.zhenwei.core.asn1.DERSet in project LinLong-Java by zhenwei1108.

the class DefaultAuthenticatedAttributeTableGenerator method createStandardAttributeTable.

/**
 * Create a standard attribute table from the passed in parameters - this will normally include
 * contentType and messageDigest. If the constructor using an AttributeTable was used, entries in
 * it for contentType and messageDigest will override the generated ones.
 *
 * @param parameters source parameters for table generation.
 * @return a filled in Hashtable of attributes.
 */
protected Hashtable createStandardAttributeTable(Map parameters) {
    Hashtable std = new Hashtable();
    for (Enumeration en = table.keys(); en.hasMoreElements(); ) {
        Object key = en.nextElement();
        std.put(key, table.get(key));
    }
    if (!std.containsKey(CMSAttributes.contentType)) {
        ASN1ObjectIdentifier contentType = ASN1ObjectIdentifier.getInstance(parameters.get(CMSAttributeTableGenerator.CONTENT_TYPE));
        Attribute attr = new Attribute(CMSAttributes.contentType, new DERSet(contentType));
        std.put(attr.getAttrType(), attr);
    }
    if (!std.containsKey(CMSAttributes.messageDigest)) {
        byte[] messageDigest = (byte[]) parameters.get(CMSAttributeTableGenerator.DIGEST);
        Attribute attr = new Attribute(CMSAttributes.messageDigest, new DERSet(new DEROctetString(messageDigest)));
        std.put(attr.getAttrType(), attr);
    }
    if (!std.contains(CMSAttributes.cmsAlgorithmProtect)) {
        Attribute attr = new Attribute(CMSAttributes.cmsAlgorithmProtect, new DERSet(new CMSAlgorithmProtection((AlgorithmIdentifier) parameters.get(CMSAttributeTableGenerator.DIGEST_ALGORITHM_IDENTIFIER), CMSAlgorithmProtection.MAC, (AlgorithmIdentifier) parameters.get(CMSAttributeTableGenerator.MAC_ALGORITHM_IDENTIFIER))));
        std.put(attr.getAttrType(), attr);
    }
    return std;
}

Example 39 with DERSet

use of com.github.zhenwei.core.asn1.DERSet in project LinLong-Java by zhenwei1108.

the class DefaultSignedAttributeTableGenerator method createStandardAttributeTable.

/**
 * Create a standard attribute table from the passed in parameters - this will normally include
 * contentType, signingTime, messageDigest, and CMS algorithm protection. If the constructor using
 * an AttributeTable was used, entries in it for contentType, signingTime, and messageDigest will
 * override the generated ones.
 *
 * @param parameters source parameters for table generation.
 * @return a filled in Hashtable of attributes.
 */
protected Hashtable createStandardAttributeTable(Map parameters) {
    Hashtable std = copyHashTable(table);
    if (!std.containsKey(CMSAttributes.contentType)) {
        ASN1ObjectIdentifier contentType = ASN1ObjectIdentifier.getInstance(parameters.get(CMSAttributeTableGenerator.CONTENT_TYPE));
        // contentType will be null if we're trying to generate a counter signature.
        if (contentType != null) {
            Attribute attr = new Attribute(CMSAttributes.contentType, new DERSet(contentType));
            std.put(attr.getAttrType(), attr);
        }
    }
    if (!std.containsKey(CMSAttributes.signingTime)) {
        Date signingTime = new Date();
        Attribute attr = new Attribute(CMSAttributes.signingTime, new DERSet(new Time(signingTime)));
        std.put(attr.getAttrType(), attr);
    }
    if (!std.containsKey(CMSAttributes.messageDigest)) {
        byte[] messageDigest = (byte[]) parameters.get(CMSAttributeTableGenerator.DIGEST);
        Attribute attr = new Attribute(CMSAttributes.messageDigest, new DERSet(new DEROctetString(messageDigest)));
        std.put(attr.getAttrType(), attr);
    }
    if (!std.contains(CMSAttributes.cmsAlgorithmProtect)) {
        Attribute attr = new Attribute(CMSAttributes.cmsAlgorithmProtect, new DERSet(new CMSAlgorithmProtection((AlgorithmIdentifier) parameters.get(CMSAttributeTableGenerator.DIGEST_ALGORITHM_IDENTIFIER), CMSAlgorithmProtection.SIGNATURE, (AlgorithmIdentifier) parameters.get(CMSAttributeTableGenerator.SIGNATURE_ALGORITHM_IDENTIFIER))));
        std.put(attr.getAttrType(), attr);
    }
    return std;
}

Example 40 with DERSet

use of com.github.zhenwei.core.asn1.DERSet in project LinLong-Java by zhenwei1108.

the class CMSEnvelopedDataStreamGenerator method open.

protected OutputStream open(ASN1ObjectIdentifier dataType, OutputStream out, ASN1EncodableVector recipientInfos, OutputEncryptor encryptor) throws IOException {
    // 
    // ContentInfo
    // 
    BERSequenceGenerator cGen = new BERSequenceGenerator(out);
    cGen.addObject(CMSObjectIdentifiers.envelopedData);
    // 
    // Encrypted Data
    // 
    BERSequenceGenerator envGen = new BERSequenceGenerator(cGen.getRawOutputStream(), 0, true);
    envGen.addObject(getVersion(recipientInfos));
    if (originatorInfo != null) {
        envGen.addObject(new DERTaggedObject(false, 0, originatorInfo));
    }
    if (_berEncodeRecipientSet) {
        envGen.getRawOutputStream().write(new BERSet(recipientInfos).getEncoded());
    } else {
        envGen.getRawOutputStream().write(new DERSet(recipientInfos).getEncoded());
    }
    BERSequenceGenerator eiGen = new BERSequenceGenerator(envGen.getRawOutputStream());
    eiGen.addObject(dataType);
    AlgorithmIdentifier encAlgId = encryptor.getAlgorithmIdentifier();
    eiGen.getRawOutputStream().write(encAlgId.getEncoded());
    OutputStream octetStream = CMSUtils.createBEROctetOutputStream(eiGen.getRawOutputStream(), 0, false, _bufferSize);
    return new CmsEnvelopedDataOutputStream(encryptor, octetStream, cGen, envGen, eiGen);
}