Package org.apache.geronimo.crypto.asn1

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

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    /**
     * This method returns a X509Name object corresponding to the subject in a given certificate
     * @param cert Certificate from which subject needs to be retrieved
     */
    public static X509Name getSubjectX509Name(Certificate cert) throws CertificateEncodingException, IOException {
        ASN1InputStream ais = new ASN1InputStream(cert.getEncoded());
        X509CertificateStructure x509Struct = new X509CertificateStructure((ASN1Sequence)ais.readObject());
        ais.close();
        return x509Struct.getSubject();
    }
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    /**
     * This method returns a X509Name object corresponding to a given principal
     */
    public static X509Name getX509Name(X500Principal principal) throws CertificateEncodingException, IOException {
        ASN1InputStream ais = new ASN1InputStream(principal.getEncoded());
        X509Name name = new X509Name((ASN1Sequence)ais.readObject());
        ais.close();
        return name;
    }
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     * @return a Map with Subject, public-key and challenge
     */
    public static Map processSPKAC(String spkac) throws IOException, NoSuchAlgorithmException, InvalidKeyException, SignatureException, Exception {
        Map map = new HashMap();
        byte[]data = Base64.decode(spkac);
        ASN1InputStream ais = new ASN1InputStream(new ByteArrayInputStream(data));
        DERSequence spkacSeq = (DERSequence)ais.readObject();

        // SPKAC = SEQ {PKAC, SIGN-ALG, SIGN}
        // Get PKAC and obtain PK and C
        DERSequence pkacSeq = (DERSequence)spkacSeq.getObjectAt(0);
        DERObject pk = (DERObject)pkacSeq.getObjectAt(0);
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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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            {
                data[index] |= (byte)(right - 'a' + 10);
            }
        }

        ASN1InputStream aIn = new ASN1InputStream(
                                            new ByteArrayInputStream(data));

        return aIn.readObject();
    }
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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 (InvalidKeySpecException)new InvalidKeySpecException(ex.getMessage()).initCause(ex);
                    }
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    public static void main(
        String args[])
        throws Exception
    {
        FileInputStream fIn = new FileInputStream(args[0]);
        ASN1InputStream bIn = new ASN1InputStream(fIn);
        Object          obj = null;

        while ((obj = bIn.readObject()) != null)
        {
            System.out.println(ASN1Dump.dumpAsString(obj));
        }
    }
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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", ex);
        }
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