Examples of CipherOutputStream

ch.ethz.ssh2.crypto.cipher.CipherOutputStream
CipherOutputStream. @author Christian Plattner, plattner@inf.ethz.ch @version $Id: CipherOutputStream.java,v 1.4 2005/12/05 17:13:27 cplattne Exp $
com.trilead.ssh2.crypto.cipher.CipherOutputStream
CipherOutputStream. @author Christian Plattner, plattner@inf.ethz.ch @version $Id: CipherOutputStream.java,v 1.4 2005/12/05 17:13:27 cplattne Exp $
javax.crypto.CipherOutputStream
This class wraps an output stream and a cipher so that {@code write} methodssend the data through the cipher before writing them to the underlying output stream.
The cipher must be initialized for the requested operation before being used by a {@code CipherOutputStream}. For example, if a cipher initialized for encryption is used with a {@code CipherOutputStream}, the {@code CipherOutputStream} tries to encrypt the data writing it out.
org.bouncycastle.crypto.io.CipherOutputStream

Examples of javax.crypto.CipherOutputStream

        throws Exception
    {
        Key                     key;
        Cipher                  in, out;
        CipherInputStream       cIn;
        CipherOutputStream      cOut;
        ByteArrayInputStream    bIn;
        ByteArrayOutputStream   bOut;


        key = new SecretKeySpec(keyBytes, "AES");


        in = Cipher.getInstance("AES/ECB/NoPadding", "BC");
        out = Cipher.getInstance("AES/ECB/NoPadding", "BC");
        
        try
        {
            out.init(Cipher.ENCRYPT_MODE, key);
        }
        catch (Exception e)
        {
            fail("AES failed initialisation - " + e.toString(), e);
        }


        try
        {
            in.init(Cipher.DECRYPT_MODE, key);
        }
        catch (Exception e)
        {
            fail("AES failed initialisation - " + e.toString(), e);
        }


        //
        // encryption pass
        //
        bOut = new ByteArrayOutputStream();


        cOut = new CipherOutputStream(bOut, out);


        try
        {
            for (int i = 0; i != input.length / 2; i++)
            {
                cOut.write(input[i]);
            }
            cOut.write(input, input.length / 2, input.length - input.length / 2);
            cOut.close();
        }
        catch (IOException e)
        {
            fail("AES failed encryption - " + e.toString(), e);
        }

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Examples of javax.crypto.CipherOutputStream

            dOut.writeInt(salt.length);
            dOut.write(salt);
            dOut.writeInt(iterationCount);


            Cipher              cipher = makePBECipher(KEY_CIPHER, Cipher.ENCRYPT_MODE, password, salt, iterationCount);
            CipherOutputStream  cOut = new CipherOutputStream(dOut, cipher);


            dOut = new DataOutputStream(cOut);


            encodeKey(key, dOut);

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Examples of javax.crypto.CipherOutputStream

                            dOut.writeInt(salt.length);
                            dOut.write(salt);
                            dOut.writeInt(iterationCount);


                            Cipher              out = makePBECipher(KEY_CIPHER, Cipher.ENCRYPT_MODE, password, salt, iterationCount);
                            CipherOutputStream  cOut = new CipherOutputStream(dOut, out);


                            dOut = new DataOutputStream(cOut);


                            encodeKey(k, dOut);

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Examples of javax.crypto.CipherOutputStream

        {
            out.init(Cipher.DECRYPT_MODE, key);
        }


        CipherInputStream       cIn = new CipherInputStream(bIn, in);
        CipherOutputStream      cOut = new CipherOutputStream(bOut, out);


        int c;


        while ((c = cIn.read()) >= 0)
        {
            cOut.write(c);
        }


        cIn.close();


        cOut.flush();
        cOut.close();


        String  res = new String(bOut.toByteArray());


        if (!res.equals(lCode))
        {

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Examples of javax.crypto.CipherOutputStream

      
      try
      {
        
        java.util.zip.ZipOutputStream zos = null;
        CipherOutputStream cos = null;
        
        // Check whether we need to encrypt the file content:
        if (passCode != null && passCode.length() > 0)
        {
          
          // Write IV as a prefix:
          SecureRandom random = new SecureRandom();
          byte[] iv = new byte[IV_LENGTH];
          random.nextBytes(iv);
          os.write(iv);
          os.flush();
          
          Cipher cipher = null; 
          try
          {
            cipher = getCipher(threadContext, Cipher.ENCRYPT_MODE, passCode, iv);
          }
          catch (GeneralSecurityException gse)
          {
            throw new ManifoldCFException("Could not encrypt configuratiom file: " + gse.getMessage());
          }
          
          cos = new CipherOutputStream(os, cipher);
          zos = new java.util.zip.ZipOutputStream(cos);
        }
        else
          zos = new java.util.zip.ZipOutputStream(os);
 
        try
        {
          // Now, work within a transaction.
          database.beginTransaction();
          try
          {
            // At the outermost level, I've decided that the best structure is to have a zipentry for each
            // manager.  Each manager must manage its own data as a binary blob, including any format versioning information,
            // This guarantees flexibility for the future.


            // The zipentries must be written in an order that permits their proper restoration.  The "lowest level" is thus
            // written first, which yields the order: authority connections, repository connections, jobs
            java.util.zip.ZipEntry outputEntry = new java.util.zip.ZipEntry("outputs");
            zos.putNextEntry(outputEntry);
            outputManager.exportConfiguration(zos);
            zos.closeEntry();


            java.util.zip.ZipEntry mappingEntry = new java.util.zip.ZipEntry("mappings");
            zos.putNextEntry(mappingEntry);
            mappingManager.exportConfiguration(zos);
            zos.closeEntry();


            java.util.zip.ZipEntry authEntry = new java.util.zip.ZipEntry("authorities");
            zos.putNextEntry(authEntry);
            authManager.exportConfiguration(zos);
            zos.closeEntry();


            java.util.zip.ZipEntry connEntry = new java.util.zip.ZipEntry("connections");
            zos.putNextEntry(connEntry);
            connManager.exportConfiguration(zos);
            zos.closeEntry();


            java.util.zip.ZipEntry jobsEntry = new java.util.zip.ZipEntry("jobs");
            zos.putNextEntry(jobsEntry);
            jobManager.exportConfiguration(zos);
            zos.closeEntry();


            // All done
          }
          catch (ManifoldCFException e)
          {
            database.signalRollback();
            throw e;
          }
          catch (Error e)
          {
            database.signalRollback();
            throw e;
          }
          finally
          {
            database.endTransaction();
          }
        }
        finally
        {
          zos.close();
          if (cos != null) {
            cos.close();
          }
        }
      }
      finally
      {

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Examples of javax.crypto.CipherOutputStream

      
      try
      {
        
        java.util.zip.ZipOutputStream zos = null;
        CipherOutputStream cos = null;
        
        // Check whether we need to encrypt the file content:
        if (passCode != null && passCode.length() > 0)
        {
          
          // Write IV as a prefix:
          SecureRandom random = new SecureRandom();
          byte[] iv = new byte[IV_LENGTH];
          random.nextBytes(iv);
          os.write(iv);
          os.flush();
          
          Cipher cipher = null; 
          try
          {
            cipher = getCipher(threadContext, Cipher.ENCRYPT_MODE, passCode, iv);
          }
          catch (GeneralSecurityException gse)
          {
            throw new ManifoldCFException("Could not encrypt configuratiom file: " + gse.getMessage());
          }
          
          cos = new CipherOutputStream(os, cipher);
          zos = new java.util.zip.ZipOutputStream(cos);
        }
        else
          zos = new java.util.zip.ZipOutputStream(os);
 
        try
        {
          // Now, work within a transaction.
          database.beginTransaction();
          try
          {
            // At the outermost level, I've decided that the best structure is to have a zipentry for each
            // manager.  Each manager must manage its own data as a binary blob, including any format versioning information,
            // This guarantees flexibility for the future.


            // The zipentries must be written in an order that permits their proper restoration.  The "lowest level" is thus
            // written first, which yields the order: authority connections, repository connections, jobs
            java.util.zip.ZipEntry outputEntry = new java.util.zip.ZipEntry("outputs");
            zos.putNextEntry(outputEntry);
            outputManager.exportConfiguration(zos);
            zos.closeEntry();


            java.util.zip.ZipEntry groupEntry = new java.util.zip.ZipEntry("groups");
            zos.putNextEntry(groupEntry);
            groupManager.exportConfiguration(zos);
            zos.closeEntry();


            java.util.zip.ZipEntry mappingEntry = new java.util.zip.ZipEntry("mappings");
            zos.putNextEntry(mappingEntry);
            mappingManager.exportConfiguration(zos);
            zos.closeEntry();


            java.util.zip.ZipEntry authEntry = new java.util.zip.ZipEntry("authorities");
            zos.putNextEntry(authEntry);
            authManager.exportConfiguration(zos);
            zos.closeEntry();


            java.util.zip.ZipEntry connEntry = new java.util.zip.ZipEntry("connections");
            zos.putNextEntry(connEntry);
            connManager.exportConfiguration(zos);
            zos.closeEntry();


            java.util.zip.ZipEntry jobsEntry = new java.util.zip.ZipEntry("jobs");
            zos.putNextEntry(jobsEntry);
            jobManager.exportConfiguration(zos);
            zos.closeEntry();


            // All done
          }
          catch (ManifoldCFException e)
          {
            database.signalRollback();
            throw e;
          }
          catch (Error e)
          {
            database.signalRollback();
            throw e;
          }
          finally
          {
            database.endTransaction();
          }
        }
        finally
        {
          zos.close();
          if (cos != null) {
            cos.close();
          }
        }
      }
      finally
      {

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Examples of javax.crypto.CipherOutputStream

                    base = bos;
                }
                if (guard != null) {
                    oos = serialProvider.createObjectOutputStream(
                          new BufferedOutputStream(
                                new CipherOutputStream(base, guard.getEncryptionCipher())));
                } else {
                    oos = serialProvider
                          .createObjectOutputStream(new BufferedOutputStream(
                                base,
                                1024));

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Examples of javax.crypto.CipherOutputStream

        KeyGenerator            keyGen;
        SecureRandom            rand;
        Cipher                  in = null;
        Cipher                  out = null;
        CipherInputStream       cIn;
        CipherOutputStream      cOut;
        ByteArrayInputStream    bIn;
        ByteArrayOutputStream   bOut;


        rand = new FixedSecureRandom();


        try
        {
            String  baseAlgorithm;
            int     index = algorithm.indexOf('/');


            if (index > 0)
            {
                baseAlgorithm = algorithm.substring(0, index);
            }
            else
            {
                baseAlgorithm = algorithm;
            }


            if (baseAlgorithm.equals("IDEA") & noIDEA())
            {
                return;
            }


            keyGen = KeyGenerator.getInstance(baseAlgorithm, "BC");
            if (!keyGen.getAlgorithm().equals(baseAlgorithm))
            {
                fail("wrong key generator returned!");
            }
            keyGen.init(rand);


            key = keyGen.generateKey();


            in = Cipher.getInstance(algorithm, "BC");
            out = Cipher.getInstance(algorithm, "BC");


            if (!in.getAlgorithm().startsWith(baseAlgorithm))
            {
                fail("wrong cipher returned!");
            }


            if (algorithm.startsWith("RC2"))
            {
                out.init(Cipher.ENCRYPT_MODE, key, rc2Spec, rand);
            }
            else if (algorithm.startsWith("RC5"))
            {
                if (algorithm.startsWith("RC5-64"))
                {
                    out.init(Cipher.ENCRYPT_MODE, key, rc564Spec, rand);
                }
                else
                {
                    out.init(Cipher.ENCRYPT_MODE, key, rc5Spec, rand);
                }
            }
            else
            {
                out.init(Cipher.ENCRYPT_MODE, key, rand);
            }
        }
        catch (Exception e)
        {
            fail("" + algorithm + " failed initialisation - " + e.toString(), e);
        }


        //
        // grab the iv if there is one
        //
        try
        {
            if (algorithm.startsWith("RC2"))
            {
                in.init(Cipher.DECRYPT_MODE, key, rc2Spec);
            }
            else if (algorithm.startsWith("RC5"))
            {
                if (algorithm.startsWith("RC5-64"))
                {
                    in.init(Cipher.DECRYPT_MODE, key, rc564Spec, rand);
                }
                else
                {
                    in.init(Cipher.DECRYPT_MODE, key, rc5Spec, rand);
                }
            }
            else
            {
                byte[]    iv;


                iv = out.getIV();
                if (iv != null)
                {
                    try
                    {
                        byte[]  nIv = new byte[iv.length - 1];


                        in.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(nIv));
                        fail("failed to pick up short IV");
                    }
                    catch (InvalidAlgorithmParameterException e)
                    {
                        // ignore - this is what we want...
                    }


                    IvParameterSpec    spec;


                    spec = new IvParameterSpec(iv);


                    in.init(Cipher.DECRYPT_MODE, key, spec);
                }
                else
                {
                    in.init(Cipher.DECRYPT_MODE, key);
                }
            }
        }
        catch (Exception e)
        {
            fail("" + algorithm + " failed initialisation - " + e.toString());
        }


        //
        // encryption pass
        //
        bOut = new ByteArrayOutputStream();


        cOut = new CipherOutputStream(bOut, out);


        try
        {
            for (int i = 0; i != input.length / 2; i++)
            {
                cOut.write(input[i]);
            }
            cOut.write(input, input.length / 2, input.length - input.length / 2);
            cOut.close();
        }
        catch (IOException e)
        {
            fail("" + algorithm + " failed encryption - " + e.toString());
        }

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Examples of javax.crypto.CipherOutputStream

        {
            out.init(Cipher.DECRYPT_MODE, key);
        }


        CipherInputStream       cIn = new CipherInputStream(bIn, in);
        CipherOutputStream      cOut = new CipherOutputStream(bOut, out);


        int c;


        while ((c = cIn.read()) >= 0)
        {
            cOut.write(c);
        }


        cIn.close();


        cOut.flush();
        cOut.close();


        String  res = new String(bOut.toByteArray());


        if (!res.equals(lCode))
        {

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Examples of javax.crypto.CipherOutputStream

        throws Exception
    {
        Key                     key;
        Cipher                  in, out;
        CipherInputStream       cIn;
        CipherOutputStream      cOut;
        ByteArrayInputStream    bIn;
        ByteArrayOutputStream   bOut;


        key = new SecretKeySpec(keyBytes, "AES");


        in = Cipher.getInstance("AES/ECB/NoPadding", "BC");
        out = Cipher.getInstance("AES/ECB/NoPadding", "BC");
        
        try
        {
            out.init(Cipher.ENCRYPT_MODE, key);
        }
        catch (Exception e)
        {
            fail("AES failed initialisation - " + e.toString(), e);
        }


        try
        {
            in.init(Cipher.DECRYPT_MODE, key);
        }
        catch (Exception e)
        {
            fail("AES failed initialisation - " + e.toString(), e);
        }


        //
        // encryption pass
        //
        bOut = new ByteArrayOutputStream();


        cOut = new CipherOutputStream(bOut, out);


        try
        {
            for (int i = 0; i != input.length / 2; i++)
            {
                cOut.write(input[i]);
            }
            cOut.write(input, input.length / 2, input.length - input.length / 2);
            cOut.close();
        }
        catch (IOException e)
        {
            fail("AES failed encryption - " + e.toString(), e);
        }

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