Examples of org.apache.geronimo.util.asn1.ASN1InputStream

org.apache.geronimo.util.asn1.ASN1InputStream
a general purpose ASN.1 decoder - note: this class differs from the others in that it returns null after it has read the last object in the stream. If an ASN.1 NULL is encountered a DER/BER Null object is returned.


    private String generateCSR(X509Certificate cert, PrivateKey signingKey) throws InvalidKeyException, NoSuchAlgorithmException, NoSuchProviderException, SignatureException, KeyStoreException, IOException {
        String sigalg = cert.getSigAlgName();
        X509Name subject;
        try{
            ASN1InputStream ais = new ASN1InputStream(cert.getEncoded());
            X509CertificateStructure x509Struct = new X509CertificateStructure((ASN1Sequence)ais.readObject());
            ais.close();
            subject = x509Struct.getSubject();
        } catch(CertificateEncodingException e) {
            log.warn(e.toString()+" while retrieving subject from certificate to create CSR.  Using subjectDN instead.");
            subject = new X509Name(cert.getSubjectDN().toString());
        }

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        algId = new AlgorithmIdentifier((ASN1Sequence)e.nextElement());


        try
        {
            ByteArrayInputStream    bIn = new ByteArrayInputStream(((ASN1OctetString)e.nextElement()).getOctets());
            ASN1InputStream         aIn = new ASN1InputStream(bIn);


            privKey = aIn.readObject();
        }
        catch (IOException ex)
        {
            throw new IllegalArgumentException("Error recoverying private key from sequence");
        }

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    static PublicKey createPublicKeyFromDERStream(
        InputStream         in)
        throws IOException
    {
        return createPublicKeyFromPublicKeyInfo(
                new SubjectPublicKeyInfo((ASN1Sequence)(new ASN1InputStream(in).readObject())));
    }

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    static PrivateKey createPrivateKeyFromDERStream(
        InputStream         in)
        throws IOException
    {
        return createPrivateKeyFromPrivateKeyInfo(
                new PrivateKeyInfo((ASN1Sequence)(new ASN1InputStream(in).readObject())));
    }

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                    //
                    try
                    {
                        return new JCERSAPrivateCrtKey(
                            new RSAPrivateKeyStructure(
                                (ASN1Sequence)new ASN1InputStream(new ByteArrayInputStream(((PKCS8EncodedKeySpec)keySpec).getEncoded())).readObject()));
                    }
                    catch (Exception ex)
                    {
                        throw new InvalidKeySpecException(ex.toString());
                    }

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        else if("SHA1withRSA".equalsIgnoreCase(algorithm))
            algId = new AlgorithmIdentifier(PKCSObjectIdentifiers.sha1WithRSAEncryption);
        else
            throw new CertificationAuthorityException("Signature algorithm "+algorithm+" is not supported.");
        
        ASN1InputStream ais = new ASN1InputStream(subPubKey.getEncoded());
        DERObject subPubkeyDerObj = ais.readObject();
        SubjectPublicKeyInfo subPubKeyInfo = SubjectPublicKeyInfo.getInstance(subPubkeyDerObj);
        
        // Create certificate generator and initialize fields
        // Certificate version is v3
        V3TBSCertificateGenerator v3certGen = new V3TBSCertificateGenerator();

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        byte[]  bytes)
    {
        try
        {
            ByteArrayInputStream    bIn = new ByteArrayInputStream(bytes);
            ASN1InputStream         dIn = new ASN1InputStream(bIn);


            return (ASN1Sequence)dIn.readObject();
        }
        catch (Exception e)
        {
            throw new IllegalArgumentException("badly encoded request");
        }

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        this.sigAlgId = new AlgorithmIdentifier(sigOID, null);


        byte[]                  bytes = key.getEncoded();
        ByteArrayInputStream    bIn = new ByteArrayInputStream(bytes);
        ASN1InputStream         dIn = new ASN1InputStream(bIn);


        try
        {
            this.reqInfo = new CertificationRequestInfo(subject, new SubjectPublicKeyInfo((ASN1Sequence)dIn.readObject()), attributes);
        }
        catch (IOException e)
        {
            throw new IllegalArgumentException("can't encode public key");
        }

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    public void setPublicKey(
        PublicKey       key)
    {
        try
        {
            tbsGen.setSubjectPublicKeyInfo(new SubjectPublicKeyInfo((ASN1Sequence)new ASN1InputStream(
                                new ByteArrayInputStream(key.getEncoded())).readObject()));
        }
        catch (Exception e)
        {
            throw new IllegalArgumentException("unable to process key - " + e.toString());

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     */
    public X509Principal(
        byte[]  bytes)
        throws IOException
    {
        super((ASN1Sequence)(new ASN1InputStream(new ByteArrayInputStream(bytes)).readObject()));
    }

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