Example usage for javax.crypto CipherOutputStream close

Introduction

In this page you can find the example usage for javax.crypto CipherOutputStream close.

Prototype

public void close() throws IOException 

Source Link

Document

Closes this output stream and releases any system resources associated with this stream.

Usage

From source file:uploadProcess.java

public static boolean encrypt(String path, FileItemStream item, String patientID) {
    try {//w ww . j a v  a  2 s  . c  o  m
        File mainFolder = new File(path + File.separator + "Encrypt");
        if (!mainFolder.exists()) {
            mainFolder.mkdir();
        }
        File patientFolder = new File(mainFolder + File.separator + patientID);
        if (!patientFolder.exists()) {
            patientFolder.mkdir();
        }
        String ukey = GetKey.getPatientKey(patientID);
        InputStream fis = item.openStream();

        FileOutputStream fos = new FileOutputStream(
                patientFolder.getAbsolutePath() + File.separator + item.getName());
        byte[] k = ukey.getBytes();
        SecretKeySpec key = new SecretKeySpec(k, "AES");
        System.out.println(key);
        Cipher enc = Cipher.getInstance("AES");
        enc.init(Cipher.ENCRYPT_MODE, key);
        CipherOutputStream cos = new CipherOutputStream(fos, enc);
        byte[] buf = new byte[1024];
        int read;
        while ((read = fis.read(buf)) != -1) {
            cos.write(buf, 0, read);
        }
        fis.close();
        fos.flush();
        cos.close();

        //Upload File to cloud
        DropboxUpload upload = new DropboxUpload();
        upload.uploadFile(patientFolder, item.getName(), StoragePath.getDropboxDir() + patientID);
        DeleteDirectory.delete(patientFolder);

        return true;
    } catch (Exception e) {
        System.out.println("Error: " + e);
    }
    return false;
}

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From source file:org.panbox.core.crypto.CryptCore.java

public static byte[] _asymmetricDecrypt(byte[] symKey, PrivateKey pKey)
        throws InvalidKeyException, IOException {
    ASYMM_CIPHER.init(Cipher.DECRYPT_MODE, pKey);
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    CipherOutputStream cos = new CipherOutputStream(bos, ASYMM_CIPHER);
    cos.write(symKey);//from w  w w. j a  v a2 s. c om
    cos.flush();
    cos.close();
    byte[] byteArray = bos.toByteArray();
    return byteArray;
}

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From source file:com.hernandez.rey.crypto.TripleDES.java

/**
 * Use the specified TripleDES key to encrypt bytes from the input stream and write them to the output stream. This
 * method uses CipherOutputStream to perform the encryption and write bytes at the same time.
 * /*from  w  w  w.  j  a  v a 2 s  .  c om*/
 * @param key the key to use for encryption
 * @param in the input stream to encrypt
 * @param out the encrypted output stream
 * @throws NoSuchAlgorithmException
 * @throws InvalidKeyException
 * @throws NoSuchPaddingException
 * @throws IOException
 */
public static void encrypt(final SecretKey key, final InputStream in, final OutputStream out)
        throws NoSuchAlgorithmException, InvalidKeyException, NoSuchPaddingException, IOException {
    // Create and initialize the encryption engine
    final Cipher cipher = Cipher.getInstance("DESede");
    cipher.init(Cipher.ENCRYPT_MODE, key);

    // Create a special output stream to do the work for us
    final CipherOutputStream cos = new CipherOutputStream(out, cipher);

    // Read from the input and write to the encrypting output stream
    final byte[] buffer = new byte[2048];
    int bytesRead;
    while ((bytesRead = in.read(buffer)) != -1) {
        cos.write(buffer, 0, bytesRead);
    }
    cos.close();

    // For extra security, don't leave any plaintext hanging around memory.
    java.util.Arrays.fill(buffer, (byte) 0);
}

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From source file:org.panbox.core.crypto.CryptCore.java

public static byte[] encryptSymmetricKey(byte[] symKey, PublicKey pKey) throws SymmetricKeyEncryptionException {
    try {/*  w  ww  .j a  va  2s  .c om*/
        ASYMM_CIPHER.init(Cipher.ENCRYPT_MODE, pKey);
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        CipherOutputStream cos = new CipherOutputStream(bos, ASYMM_CIPHER);
        cos.write(symKey);
        cos.flush();
        cos.close();
        byte[] byteArray = bos.toByteArray();
        return byteArray;
    } catch (Exception e) {
        throw new SymmetricKeyEncryptionException(e);
    }
}

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From source file:uploadProcess.java

public static boolean decrypt(File inputFolder, String fileName, String patientID, String viewKey) {
    try {//from  www  . j  av  a 2 s .  c  om

        String ukey = GetKey.getPatientKey(patientID);
        if (viewKey.equals(ukey)) {
            //Download File from Cloud..
            DropboxUpload download = new DropboxUpload();
            download.downloadFile(fileName, StoragePath.getDropboxDir() + patientID, inputFolder);

            File inputFile = new File(inputFolder.getAbsolutePath() + File.separator + fileName);
            FileInputStream fis = new FileInputStream(inputFile);
            File outputFolder = new File(inputFolder.getAbsolutePath() + File.separator + "temp");
            if (!outputFolder.exists()) {
                outputFolder.mkdir();
            }
            FileOutputStream fos = new FileOutputStream(
                    outputFolder.getAbsolutePath() + File.separator + fileName);
            byte[] k = ukey.getBytes();
            SecretKeySpec key = new SecretKeySpec(k, "AES");
            Cipher enc = Cipher.getInstance("AES");
            enc.init(Cipher.DECRYPT_MODE, key);
            CipherOutputStream cos = new CipherOutputStream(fos, enc);
            byte[] buf = new byte[1024];
            int read;
            while ((read = fis.read(buf)) != -1) {
                cos.write(buf, 0, read);
            }
            fis.close();
            fos.flush();
            cos.close();
            return true;
        } else {
            return false;
        }
    } catch (Exception e) {
        System.out.println("Error: " + e);
    }
    return false;
}

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From source file:com.data.pack.Util.java

public static void copyFile(InputStream in, OutputStream out, int flag) throws IOException {
    byte[] buffer = new byte[1024];
    int read;/*from  ww w .j  a v  a 2 s  .co  m*/

    try {

        Cipher encipher = null;
        try {
            encipher = Cipher.getInstance("AES");
        } catch (NoSuchAlgorithmException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (NoSuchPaddingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        Cipher decipher = null;
        try {
            decipher = Cipher.getInstance("AES");
        } catch (NoSuchAlgorithmException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (NoSuchPaddingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        KeyGenerator kgen = null;
        try {
            kgen = KeyGenerator.getInstance("AES");
        } catch (NoSuchAlgorithmException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        byte[] keyStart = "fitnesSbridge".getBytes();
        SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");
        sr.setSeed(keyStart);
        kgen.init(128, sr); // 192 and 256 bits may not be available
        SecretKey skey = kgen.generateKey();

        // byte key[] =
        // {0x00,0x32,0x22,0x11,0x00,0x00,0x00,0x00,0x00,0x23,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
        skey = kgen.generateKey();
        // Lgo
        try {
            encipher.init(Cipher.ENCRYPT_MODE, skey);
        } catch (InvalidKeyException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        CipherInputStream cis = new CipherInputStream(in, encipher);
        try {
            decipher.init(Cipher.DECRYPT_MODE, skey);
        } catch (InvalidKeyException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        CipherOutputStream cos = new CipherOutputStream(out, decipher);

        try {

            if (flag == 2) {
                cos = new CipherOutputStream(out, encipher);
            } else {
                cos = new CipherOutputStream(out, decipher);
            }
            while ((read = in.read()) != -1) {
                cos.write(read);
                cos.flush();
            }

            cos.flush();
            cos.close();
            in.close();

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        try {
            out.close();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    } catch (Exception e) {
        // TODO: handle exception
    }

    //
    // byte[] keyStart = "this is a key".getBytes();
    // KeyGenerator kgen = KeyGenerator.getInstance("AES");
    // SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");
    // sr.setSeed(keyStart);
    // kgen.init(128, sr); // 192 and 256 bits may not be available
    // SecretKey skey = kgen.generateKey();
    // byte[] key = skey.getEncoded();
    //
    //
    // byte[] b = baos.toByteArray();
    // while ((read = in.read(buffer)) != -1) {
    //
    // // decrypt
    // byte[] decryptedData = Util.decrypt(key,buffer);
    // out.write(decryptedData, 0, read);
    // }
    // } catch (NoSuchAlgorithmException e) {
    // // TODO Auto-generated catch block
    // e.printStackTrace();
    // }
    // catch (Exception e) {
    // // TODO: handle exception
    // }
    //
}

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From source file:at.tfr.securefs.util.Main.java

public void execute() throws Exception {

    Cipher cipher = null;// w  w  w  .  j  a v  a2s.  c om

    if (test) {
        nrOfShares = KeyConstants.nrOfSharesForTest;
        threshold = KeyConstants.thresholdForTest;
        modulus = KeyConstants.modulusForTest;
        shares = KeyConstants.sharesForTest;
    }

    configuration.setBasePath(basePath);

    secret = new Shamir().combine(nrOfShares, threshold, modulus, shares);

    secretBean.setSecret(secret);
    Path filePath = basePath.resolve(file);

    cipher = sksBean.getCipher(configuration.getSalt(), mode);

    OutputStream outputStream = outFile == null ? System.out
            : new FileOutputStream(basePath.resolve(outFile).toFile());

    CipherOutputStream os = new CipherOutputStream(outputStream, cipher);

    IOUtils.copy(new FileInputStream(filePath.toFile()), os);
    os.close();

}

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From source file:enc_mods.aes.java

/**
 * Encrypts the AES key to a file using an RSA public key
 *//*from  www .j  a  va  2  s .c o  m*/
public void saveKey(File out, File publicKeyFile) {
    try {
        // read public key to be used to encrypt the AES key
        byte[] encodedKey = new byte[(int) publicKeyFile.length()];
        new FileInputStream(publicKeyFile).read(encodedKey);

        // create public key
        X509EncodedKeySpec publicKeySpec = new X509EncodedKeySpec(encodedKey);
        KeyFactory kf = KeyFactory.getInstance("RSA");
        PublicKey pk = kf.generatePublic(publicKeySpec);

        // write AES key
        cipher.init(Cipher.ENCRYPT_MODE, pk);
        CipherOutputStream os = new CipherOutputStream(new FileOutputStream(out), cipher);
        os.write(key);
        os.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:com.cubusmail.server.mail.security.MailPasswordEncryptor.java

public byte[] encryptPassowrd(String password) {

    Cipher cipher;//from   w  w w.  j  av a2 s.c  om
    try {
        cipher = Cipher.getInstance(this.algorithm);
        cipher.init(Cipher.ENCRYPT_MODE, this.keyPair.getPublic());

        ByteArrayOutputStream baosEncryptedData = new ByteArrayOutputStream();
        CipherOutputStream cos = new CipherOutputStream(baosEncryptedData, cipher);

        cos.write(password.getBytes("UTF-8"));
        cos.flush();
        cos.close();

        return baosEncryptedData.toByteArray();
    } catch (Exception e) {
        log.error(e.getMessage(), e);
        throw new IllegalStateException(e.getMessage(), e);
    }
}

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From source file:org.codice.ddf.configuration.migration.CipherUtilsTest.java

@Test
public void createEncryptedFile() throws IOException {
    CipherUtils cipherUtils = new CipherUtils(zipPath);
    Path encryptedFile = Paths.get(ddfHome.toString(), "encrypted.test.file");
    FileOutputStream fos = new FileOutputStream(encryptedFile.toFile());
    CipherOutputStream cipherOutputStream = cipherUtils.getCipherOutputStream(fos);
    IOUtils.write("foo", cipherOutputStream, StandardCharsets.UTF_8);
    cipherOutputStream.close();
    assertThat(readFileToString(encryptedFile.toFile(), StandardCharsets.UTF_8), Matchers.not("foo"));
}

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