Package javax.crypto

Examples of javax.crypto.CipherInputStream

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            {
                cipherAlg = STORE_CIPHER;
            }

            Cipher cipher = this.makePBECipher(cipherAlg, Cipher.DECRYPT_MODE, password, salt, iterationCount);
            CipherInputStream cIn = new CipherInputStream(dIn, cipher);

            Digest dig = new SHA1Digest();
            DigestInputStream  dgIn = new DigestInputStream(cIn, dig);
   
            this.loadStore(dgIn);
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            public AlgorithmIdentifier getAlgorithmIdentifier() {
              return contentEncryptionAlgorithm;
            }

            public InputStream getInputStream(InputStream dataIn) {
              return new CipherInputStream(dataIn, dataCipher);
            }
          });
        }
        return super.getRecipientOperator(keyEncryptionAlgorithm,
            contentEncryptionAlgorithm,
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        byte[]      output)
        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);
        }

        byte[]    bytes;

        bytes = bOut.toByteArray();

        if (!areEqual(bytes, output))
        {
            fail("AES failed encryption - expected " + new String(Hex.encode(output)) + " got " + new String(Hex.encode(bytes)));
        }

        //
        // decryption pass
        //
        bIn = new ByteArrayInputStream(bytes);

        cIn = new CipherInputStream(bIn, in);

        try
        {
            DataInputStream dIn = new DataInputStream(cIn);
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        byte[]      input,
        byte[]      output)
    {
        Key                     key;
        Cipher                  in, out;
        CipherInputStream       cIn;
        CipherOutputStream      cOut;
        ByteArrayInputStream    bIn;
        ByteArrayOutputStream   bOut;
        IvParameterSpec         spec = new IvParameterSpec(Hex.decode("1234567890abcdef"));

        try
        {
            String  baseAlgorithm;

            key = new SecretKeySpec(Hex.decode("0123456789abcdef"), "DES");

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

            if (algorithm.startsWith("DES/ECB"))
            {
                out.init(Cipher.ENCRYPT_MODE, key);
            }
            else
            {
                out.init(Cipher.ENCRYPT_MODE, key, spec);
            }
        }
        catch (Exception e)
        {
            return new SimpleTestResult(false, getName() + ": " + algorithm + " failed initialisation - " + e.toString(), e);
        }

        try
        {
            if (algorithm.startsWith("DES/ECB"))
            {
                in.init(Cipher.DECRYPT_MODE, key);
            }
            else
            {
                in.init(Cipher.DECRYPT_MODE, key, spec);
            }
        }
        catch (Exception e)
        {
            return new SimpleTestResult(false, getName() + ": " + algorithm + " 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)
        {
            return new SimpleTestResult(false, getName() + ": " + algorithm + " failed encryption - " + e.toString());
        }

        byte[]    bytes;

        bytes = bOut.toByteArray();

        if (!equalArray(bytes, output))
        {
            return new SimpleTestResult(false, getName() + ": " + algorithm + " failed encryption - expected " + new String(Hex.encode(output)) + " got " + new String(Hex.encode(bytes)));
        }

        //
        // decryption pass
        //
        bIn = new ByteArrayInputStream(bytes);

        cIn = new CipherInputStream(bIn, in);

        try
        {
            DataInputStream dIn = new DataInputStream(cIn);
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        Key                     key = null;
        KeyGenerator            keyGen;
        SecureRandom            rand;
        Cipher                  in = null;
        Cipher                  out = null;
        CipherInputStream       cIn;
        CipherOutputStream      cOut;
        ByteArrayInputStream    bIn;
        ByteArrayOutputStream   bOut;

        rand = new FixedSecureRandom();

        try
        {
            keyGen = KeyGenerator.getInstance("DESEDE", "BC");
            keyGen.init(strength, rand);

            key = keyGen.generateKey();

            in = Cipher.getInstance("DESEDE/ECB/PKCS7Padding", "BC");
            out = Cipher.getInstance("DESEDE/ECB/PKCS7Padding", "BC");

            out.init(Cipher.ENCRYPT_MODE, key, rand);
        }
        catch (Exception e)
        {
            fail("DESEDE failed initialisation - " + e.toString());
        }

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

        byte[]    bytes;

        bytes = bOut.toByteArray();

        if (!equalArray(bytes, output))
        {
            fail("DESEDE failed encryption - expected " + new String(Hex.encode(output)) + " got " + new String(Hex.encode(bytes)));
        }

        //
        // decryption pass
        //
        bIn = new ByteArrayInputStream(bytes);

        cIn = new CipherInputStream(bIn, in);

        try
        {
            DataInputStream dIn = new DataInputStream(cIn);
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        Key                     key = null;
        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;
            }

            keyGen = KeyGenerator.getInstance(baseAlgorithm, "BC");
            keyGen.init(rand);

            key = keyGen.generateKey();

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

            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());
        }

        //
        // 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());
        }

        byte[]    bytes;

        bytes = bOut.toByteArray();

        if (!areEqual(bytes, output))
        {
            fail("" + algorithm + " failed encryption - expected " + new String(Hex.encode(output)) + " got " + new String(Hex.encode(bytes)));
        }

        //
        // decryption pass
        //
        bIn = new ByteArrayInputStream(bytes);

        cIn = new CipherInputStream(bIn, in);

        try
        {
            DataInputStream dIn = new DataInputStream(cIn);
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        byte[]      output)
        throws Exception
    {
        Key                     key;
        Cipher                  in, out;
        CipherInputStream       cIn;
        CipherOutputStream      cOut;
        ByteArrayInputStream    bIn;
        ByteArrayOutputStream   bOut;

        key = new SecretKeySpec(keyBytes, "GOST28147");

        in = Cipher.getInstance("GOST28147/ECB/NoPadding", "BC");
        out = Cipher.getInstance("GOST28147/ECB/NoPadding", "BC");
        out.init(Cipher.ENCRYPT_MODE, key);
        in.init(Cipher.DECRYPT_MODE, key);

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

        cOut = new CipherOutputStream(bOut, out);

        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();

        byte[]    bytes;

        bytes = bOut.toByteArray();

        if (!areEqual(bytes, output))
        {
            fail("GOST28147 failed encryption - expected " + new String(Hex.encode(output)) + " got " + new String(Hex.encode(bytes)));
        }

        //
        // decryption pass
        //
        bIn = new ByteArrayInputStream(bytes);

        cIn = new CipherInputStream(bIn, in);

        DataInputStream dIn = new DataInputStream(cIn);

        bytes = new byte[input.length];
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        byte[]      output)
        throws Exception
    {
        Key                     key;
        Cipher                  in, out;
        CipherInputStream       cIn;
        CipherOutputStream      cOut;
        ByteArrayInputStream    bIn;
        ByteArrayOutputStream   bOut;

        key = new SecretKeySpec(keyBytes, "GOST28147");

        in = Cipher.getInstance("GOST28147/CFB8/NoPadding", "BC");
        out = Cipher.getInstance("GOST28147/CFB8/NoPadding", "BC");
        byte[] iv = {1,2,3,4,5,6,7,8};
       
        out.init(Cipher.ENCRYPT_MODE, key, new IvParameterSpec(iv));
        in.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(iv));

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

        cOut = new CipherOutputStream(bOut, out);

        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();

        byte[]    bytes;

        bytes = bOut.toByteArray();

        if (!areEqual(bytes, output))
        {
            fail("GOST28147 failed encryption - expected " + new String(Hex.encode(output)) + " got " + new String(Hex.encode(bytes)));
        }

        //
        // decryption pass
        //
        bIn = new ByteArrayInputStream(bytes);

        cIn = new CipherInputStream(bIn, in);

        DataInputStream dIn = new DataInputStream(cIn);

        bytes = new byte[input.length];
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            else
            {
                out.init(Cipher.DECRYPT_MODE, key);
            }

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

            int c = 0;

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

            cIn.close();

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

            String  res = new String(bOut.toByteArray());
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    public InputStream getDataStream(DirectoryNode dir) throws IOException {
        DocumentInputStream dis = dir.createDocumentInputStream("EncryptedPackage");

        _length = dis.readLong();

        return new BoundedInputStream(new CipherInputStream(dis, getCipher(getSecretKey())), _length);
    }
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