Package org.bouncycastle.asn1

Examples of org.bouncycastle.asn1.ASN1InputStream


            X509CertParser cr = new X509CertParser();
            cr.engineInit(new ByteArrayInputStream(certsKey));
            certs = cr.engineReadAll();
            signCert = (X509Certificate)certs.iterator().next();
            crls = new ArrayList();
            ASN1InputStream in = new ASN1InputStream(new ByteArrayInputStream(contentsKey));
            digest = ((DEROctetString)in.readObject()).getOctets();
            if (provider == null)
                sig = Signature.getInstance("SHA1withRSA");
            else
                sig = Signature.getInstance("SHA1withRSA", provider);
            sig.initVerify(signCert.getPublicKey());
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     * @param contentsKey the /Contents key
     * @param provider the provider or <code>null</code> for the default provider
     */   
    public PdfPKCS7(byte[] contentsKey, String provider) {
        try {
            ASN1InputStream din = new ASN1InputStream(new ByteArrayInputStream(contentsKey));

            //
            // Basic checks to make sure it's a PKCS#7 SignedData Object
            //
            DERObject pkcs;

            try {
                pkcs = din.readObject();
            }
            catch (IOException e) {
                throw new IllegalArgumentException("can't decode PKCS7SignedData object");
            }
            if (!(pkcs instanceof ASN1Sequence)) {
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     * @param enc a TBSCertificate in a byte array
     * @return a DERObject
     */
    private static DERObject getIssuer(byte[] enc) {
        try {
            ASN1InputStream in = new ASN1InputStream(new ByteArrayInputStream(enc));
            ASN1Sequence seq = (ASN1Sequence)in.readObject();
            return (DERObject)seq.getObjectAt(seq.getObjectAt(0) instanceof DERTaggedObject ? 3 : 2);
        }
        catch (IOException e) {
            throw new ExceptionConverter(e);
        }
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     * @param enc A TBSCertificate in a byte array
     * @return a DERObject
     */
    private static DERObject getSubject(byte[] enc) {
        try {
            ASN1InputStream in = new ASN1InputStream(new ByteArrayInputStream(enc));
            ASN1Sequence seq = (ASN1Sequence)in.readObject();
            return (DERObject)seq.getObjectAt(seq.getObjectAt(0) instanceof DERTaggedObject ? 5 : 4);
        }
        catch (IOException e) {
            throw new ExceptionConverter(e);
        }
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            // Get all the certificates
            //
            v = new ASN1EncodableVector();
            for (Iterator i = certs.iterator(); i.hasNext();) {
                ASN1InputStream tempstream = new ASN1InputStream(new ByteArrayInputStream(((X509Certificate)i.next()).getEncoded()));
                v.add(tempstream.readObject());
            }
           
            DERSet dercertificates = new DERSet(v);
           
            // Create signerinfo structure.
            //
            ASN1EncodableVector signerinfo = new ASN1EncodableVector();
           
            // Add the signerInfo version
            //
            signerinfo.add(new DERInteger(signerversion));
           
            v = new ASN1EncodableVector();
            v.add(getIssuer(signCert.getTBSCertificate()));
            v.add(new DERInteger(signCert.getSerialNumber()));
            signerinfo.add(new DERSequence(v));
           
            // Add the digestAlgorithm
            v = new ASN1EncodableVector();
            v.add(new DERObjectIdentifier(digestAlgorithm));
            v.add(new DERNull());
            signerinfo.add(new DERSequence(v));
           
            // add the authenticated attribute if present
            if (secondDigest != null && signingTime != null) {
                ASN1EncodableVector attribute = new ASN1EncodableVector();
                v = new ASN1EncodableVector();
                v.add(new DERObjectIdentifier(ID_CONTENT_TYPE));
                v.add(new DERSet(new DERObjectIdentifier(ID_PKCS7_DATA)));
                attribute.add(new DERSequence(v));
                v = new ASN1EncodableVector();
                v.add(new DERObjectIdentifier(ID_SIGNING_TIME));
                v.add(new DERSet(new DERUTCTime(signingTime.getTime())));
                attribute.add(new DERSequence(v));
                v = new ASN1EncodableVector();
                v.add(new DERObjectIdentifier(ID_MESSAGE_DIGEST));
                v.add(new DERSet(new DEROctetString(secondDigest)));
                attribute.add(new DERSequence(v));
                if (!crls.isEmpty()) {
                    v = new ASN1EncodableVector();
                    v.add(new DERObjectIdentifier(ID_ADBE_REVOCATION));
                    ASN1EncodableVector v2 = new ASN1EncodableVector();
                    for (Iterator i = crls.iterator();i.hasNext();) {
                        ASN1InputStream t = new ASN1InputStream(new ByteArrayInputStream(((X509CRL)i.next()).getEncoded()));
                        v2.add(t.readObject());
                    }
                    v.add(new DERSet(new DERSequence(new DERTaggedObject(true, 0, new DERSequence(v2)))));
                    attribute.add(new DERSequence(v));
                }               
                signerinfo.add(new DERTaggedObject(false, 0, new DERSet(attribute)));
            }
            // Add the digestEncryptionAlgorithm
            v = new ASN1EncodableVector();
            v.add(new DERObjectIdentifier(digestEncryptionAlgorithm));
            v.add(new DERNull());
            signerinfo.add(new DERSequence(v));
           
            // Add the digest
            signerinfo.add(new DEROctetString(digest));
           
           
            // Finally build the body out of all the components above
            ASN1EncodableVector body = new ASN1EncodableVector();
            body.add(new DERInteger(version));
            body.add(new DERSet(digestAlgorithms));
            body.add(contentinfo);
            body.add(new DERTaggedObject(false, 0, dercertificates));
           
            if (!crls.isEmpty()) {
                v = new ASN1EncodableVector();
                for (Iterator i = crls.iterator();i.hasNext();) {
                    ASN1InputStream t = new ASN1InputStream(new ByteArrayInputStream(((X509CRL)i.next()).getEncoded()));
                    v.add(t.readObject());
                }
                DERSet dercrls = new DERSet(v);
                body.add(new DERTaggedObject(false, 1, dercrls));
            }
           
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            if (!crls.isEmpty()) {
                v = new ASN1EncodableVector();
                v.add(new DERObjectIdentifier(ID_ADBE_REVOCATION));
                ASN1EncodableVector v2 = new ASN1EncodableVector();
                for (Iterator i = crls.iterator();i.hasNext();) {
                    ASN1InputStream t = new ASN1InputStream(new ByteArrayInputStream(((X509CRL)i.next()).getEncoded()));
                    v2.add(t.readObject());
                }
                v.add(new DERSet(new DERSequence(new DERTaggedObject(true, 0, new DERSequence(v2)))));
                attribute.add(new DERSequence(v));
            }
            ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
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        String s = "1.2.840.113549.3.2";
       
        AlgorithmParameterGenerator algorithmparametergenerator = AlgorithmParameterGenerator.getInstance(s);
        AlgorithmParameters algorithmparameters = algorithmparametergenerator.generateParameters();       
        ByteArrayInputStream bytearrayinputstream = new ByteArrayInputStream(algorithmparameters.getEncoded("ASN.1"));
        ASN1InputStream asn1inputstream = new ASN1InputStream(bytearrayinputstream);
        DERObject derobject = asn1inputstream.readObject();
        KeyGenerator keygenerator = KeyGenerator.getInstance(s);
        keygenerator.init(128);
        SecretKey secretkey = keygenerator.generateKey();
        Cipher cipher = Cipher.getInstance(s);
        cipher.init(1, secretkey, algorithmparameters);
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    }
   
    private KeyTransRecipientInfo computeRecipientInfo(X509Certificate x509certificate, byte[] abyte0)
        throws GeneralSecurityException, IOException
    {
        ASN1InputStream asn1inputstream =
            new ASN1InputStream(new ByteArrayInputStream(x509certificate.getTBSCertificate()));
        TBSCertificateStructure tbscertificatestructure =
            TBSCertificateStructure.getInstance(asn1inputstream.readObject());
        AlgorithmIdentifier algorithmidentifier = tbscertificatestructure.getSubjectPublicKeyInfo().getAlgorithmId();
        IssuerAndSerialNumber issuerandserialnumber =
            new IssuerAndSerialNumber(
                tbscertificatestructure.getIssuer(),
                tbscertificatestructure.getSerialNumber().getValue());
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    }
  }

  public static SubjectPublicKeyInfo toSubjectPublicKeyInfo(PublicKey publicKey) {
    try {
      return SubjectPublicKeyInfo.getInstance(new ASN1InputStream(publicKey.getEncoded()).readObject());
    } catch (IOException e) {
      throw new IllegalArgumentException("Error converting to SubjectPublicKeyInfo", e);
    }
  }
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        byte[] ext)
        throws AnnotatedException
    {
        try
        {
            ASN1InputStream aIn = new ASN1InputStream(ext);
            ASN1OctetString octs = (ASN1OctetString)aIn.readObject();

            aIn = new ASN1InputStream(octs.getOctets());
            return aIn.readObject();
        }
        catch (Exception e)
        {
            throw new AnnotatedException("exception processing extension " + oid, e);
        }
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