Example usage for javax.crypto.spec IvParameterSpec IvParameterSpec

Introduction

In this page you can find the example usage for javax.crypto.spec IvParameterSpec IvParameterSpec.

Prototype

public IvParameterSpec(byte[] iv) 

Source Link

Document

Creates an IvParameterSpec object using the bytes in iv as the IV.

Usage

From source file:jp.primecloud.auto.common.component.PasswordEncryptor.java

/**
 *
 * ?//from w w w  . ja  v  a  2s .  co  m
 *
 */
private void initialize() {
    ivParameterSpec = new IvParameterSpec(IV);

    try {
        secureRandom = SecureRandom.getInstance("SHA1PRNG");
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    }

    // ?
    secureRandom.setSeed(System.currentTimeMillis());
    // ??
    characterSet = createCharacterSet();

    try {
        chipher = Cipher.getInstance(CIPHER_PARAM);
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    } catch (NoSuchPaddingException e) {
        throw new RuntimeException(e);
    }
}

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From source file:com.charandeepmatta.oracle.sqldeveloper.DecodePasswordHash.java

private byte[] decryptPassword(final byte[] result) throws GeneralSecurityException {
    byte constant = result[0];
    if (constant != (byte) 5) {
        throw new IllegalArgumentException();
    }/*from   w w w. j  ava2 s  . co  m*/
    byte[] secretKey = new byte[8];
    System.arraycopy(result, 1, secretKey, 0, 8);
    byte[] encryptedPassword = new byte[result.length - 9];
    System.arraycopy(result, 9, encryptedPassword, 0, encryptedPassword.length);
    byte[] iv = new byte[8];
    for (int i = 0; i < iv.length; i++) {
        iv[i] = 0;
    }
    Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
    cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(secretKey, "DES"), new IvParameterSpec(iv));
    return cipher.doFinal(encryptedPassword);
}

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From source file:com.amazonaws.cognito.devauthsample.AESEncryption.java

private static byte[] decrypt(byte[] cipherBytes, String key, byte[] iv) {
    try {/*ww  w  . j av  a2s . c  om*/
        Cipher cipher = Cipher.getInstance(ENCRYPTION_ALGORITHM);
        AlgorithmParameters params = AlgorithmParameters.getInstance("AES");
        params.init(new IvParameterSpec(iv));
        cipher.init(Cipher.DECRYPT_MODE, getKey(key), params);
        return cipher.doFinal(cipherBytes);
    } catch (GeneralSecurityException e) {
        throw new RuntimeException("Failed to decrypt.", e);
    }
}

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From source file:com.google.u2f.gaedemo.impl.DataStoreImpl.java

@Override
public String storeSessionData(EnrollSessionData sessionData) {

    SecretKey key = new SecretKeySpec(SecretKeys.get().sessionEncryptionKey(), "AES");
    byte[] ivBytes = new byte[16];
    random.nextBytes(ivBytes);//from ww  w. j  av a 2  s.c  o  m
    final IvParameterSpec IV = new IvParameterSpec(ivBytes);
    Cipher cipher;
    try {
        cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
        cipher.init(Cipher.ENCRYPT_MODE, key, IV);
    } catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException
            | InvalidAlgorithmParameterException e) {
        throw new RuntimeException(e);
    }

    SealedObject sealed;
    try {
        sealed = new SealedObject(sessionData, cipher);
    } catch (IllegalBlockSizeException | IOException e) {
        throw new RuntimeException(e);
    }

    ByteArrayOutputStream out;
    try {
        out = new ByteArrayOutputStream();
        ObjectOutputStream outer = new ObjectOutputStream(out);

        outer.writeObject(sealed);
        outer.flush();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }

    return Base64.encodeBase64URLSafeString(out.toByteArray());
}

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From source file:com.blackcrowsys.sinscrypto.AesEncryptor.java

@Override
public String decrypt(String secretkey, String iv, String toDecrypt)
        throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException,
        BadPaddingException, InvalidAlgorithmParameterException, DecoderException {
    Cipher cipher = Cipher.getInstance(AESMODE);
    SecretKeySpec secretKeySpec = new SecretKeySpec(secretkey.getBytes(), AES);
    cipher.init(Cipher.DECRYPT_MODE, secretKeySpec, new IvParameterSpec(Hex.decodeHex(iv.toCharArray())));
    return new String(cipher.doFinal(Base64.decodeBase64(toDecrypt)));
}

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From source file:com.glaf.core.security.SecurityUtils.java

/**
 * DES/*from   w  w w .j  a  v a2s.  com*/
 * 
 * @param data
 *            
 * @param key
 *            ???8?
 * @return ?
 */
public static String decode(String key, String data) {
    if (data == null) {
        return null;
    }
    try {
        DESKeySpec dks = new DESKeySpec(key.getBytes());
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        // key??8?
        Key secretKey = keyFactory.generateSecret(dks);
        Cipher cipher = Cipher.getInstance(ALGORITHM_DES);
        IvParameterSpec iv = new IvParameterSpec("12345678".getBytes());
        AlgorithmParameterSpec paramSpec = iv;
        cipher.init(Cipher.DECRYPT_MODE, secretKey, paramSpec);
        return new String(cipher.doFinal(hex2byte(data.getBytes())));
    } catch (Exception ex) {
        ex.printStackTrace();
        throw new SecurityException(ex);
    }
}

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From source file:CipherSocket.java

public InputStream getInputStream() throws IOException {
    InputStream is = delegate == null ? super.getInputStream() : delegate.getInputStream();
    Cipher cipher = null;/*from   ww w. j a  va2 s .co  m*/
    try {
        cipher = Cipher.getInstance(algorithm);
        int size = cipher.getBlockSize();
        byte[] tmp = new byte[size];
        Arrays.fill(tmp, (byte) 15);
        IvParameterSpec iv = new IvParameterSpec(tmp);
        cipher.init(Cipher.DECRYPT_MODE, key, iv);
    } catch (Exception e) {
        e.printStackTrace();
        throw new IOException("Failed to init cipher: " + e.getMessage());
    }
    CipherInputStream cis = new CipherInputStream(is, cipher);
    return cis;
}

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From source file:org.apache.hadoop.hbase.io.crypto.aes.CryptoAES.java

public CryptoAES(String transformation, Properties properties, byte[] inKey, byte[] outKey, byte[] inIv,
        byte[] outIv) throws IOException {
    checkTransformation(transformation);
    // encryptor/*from   w  w  w. ja  va 2s  .  co m*/
    encryptor = Utils.getCipherInstance(transformation, properties);
    try {
        SecretKeySpec outKEYSpec = new SecretKeySpec(outKey, "AES");
        IvParameterSpec outIVSpec = new IvParameterSpec(outIv);
        encryptor.init(Cipher.ENCRYPT_MODE, outKEYSpec, outIVSpec);
    } catch (InvalidKeyException | InvalidAlgorithmParameterException e) {
        throw new IOException("Failed to initialize encryptor", e);
    }

    // decryptor
    decryptor = Utils.getCipherInstance(transformation, properties);
    try {
        SecretKeySpec inKEYSpec = new SecretKeySpec(inKey, "AES");
        IvParameterSpec inIVSpec = new IvParameterSpec(inIv);
        decryptor.init(Cipher.DECRYPT_MODE, inKEYSpec, inIVSpec);
    } catch (InvalidKeyException | InvalidAlgorithmParameterException e) {
        throw new IOException("Failed to initialize decryptor", e);
    }

    integrity = new Integrity(outKey, inKey);
}

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From source file:org.apache.hadoop.hbase.io.crypto.aes.CommonsCryptoAESDecryptor.java

@Override
public InputStream createDecryptionStream(InputStream in) {
    try {/* ww  w  .ja va  2s  .  c o  m*/
        return new CryptoInputStream(cipherMode, properties, in, key, new IvParameterSpec(iv));
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

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From source file:CipherProvider.java

/**
 * Create cipher for encrypt or decrypt backup content
 *
 * @param passwd passwd for encryption//from w ww.  ja  v  a  2  s  .c  o m
 * @param mode   encrypt/decrypt mode
 *
 * @return instance of cipher
 */
private static Cipher getCipher(final String passwd, final int mode) {
    /* Derive the key, given password and salt. */
    Cipher cipher = null;
    try {
        SecretKeyFactory factory = null;
        factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
        String salt = "slNadZlato#%^^&(&(5?@#5166?1561?#%^^*^&54431"; // only pseudorandom salt
        KeySpec spec = new PBEKeySpec(passwd.toCharArray(), salt.getBytes(), 65536, 128);
        SecretKey tmp = factory.generateSecret(spec);
        SecretKey secret = new SecretKeySpec(tmp.getEncoded(), CIPHER_TYPE);

        // initialization vector
        byte[] iv = Arrays.copyOfRange(DigestUtils.md5(passwd), 0, 16);
        AlgorithmParameterSpec paramSpec = new IvParameterSpec(iv);

        // Cipher for encryption
        cipher = Cipher.getInstance(CIPHER_TYPE + "/CBC/PKCS5Padding");
        cipher.init(mode, secret, paramSpec);
    } catch (Exception e) {
        e.printStackTrace(); //Todo implementovat
    }
    return cipher;
}

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