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:org.apache.spark.network.crypto.TransportCipher.java

private CryptoOutputStream createOutputStream(WritableByteChannel ch) throws IOException {
    return new CryptoOutputStream(cipher, conf, ch, key, new IvParameterSpec(outIv));
}

From source file:com.tapchatapp.android.service.GCMReceiver.java

private byte[] decrypt(byte[] cipherText, byte[] key, byte[] iv) throws Exception {
    SecretKey keySpec = new SecretKeySpec(key, "AES");
    IvParameterSpec ivSpec = new IvParameterSpec(iv);
    Cipher aes = Cipher.getInstance("AES/CBC/PKCS5Padding");
    aes.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
    return aes.doFinal(cipherText);
}

From source file:io.personium.core.model.file.DataCryptor.java

/**
 * Generate InputStream for encryption from Input and return it.
 * If encryptEnable is false, it returns input as is.
 * @param input input data//w w  w.j  ava  2  s.com
 * @param encryptEnable encryption flag
 * @return InputStream for encryption
 */
public InputStream encode(InputStream input, boolean encryptEnable) {
    if (!encryptEnable) {
        return input;
    }
    try {
        Cipher cipher = Cipher.getInstance(AES_CBC_PKCS5_PADDING);
        cipher.init(Cipher.ENCRYPT_MODE, aesKey, new IvParameterSpec(iv));
        CipherInputStream encodedInputStream = new CipherInputStream(input, cipher);

        return encodedInputStream;
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:CipherSocket.java

public OutputStream getOutputStream() throws IOException {
    OutputStream os = delegate == null ? super.getOutputStream() : delegate.getOutputStream();
    Cipher cipher = null;//  w  w  w. j a  va 2  s .c o 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.ENCRYPT_MODE, key, iv);
    } catch (Exception e) {
        throw new IOException("Failed to init cipher: " + e.getMessage());
    }
    CipherOutputStream cos = new CipherOutputStream(os, cipher);
    return cos;
}

From source file:jeffaschenk.tomcat.zuul.util.KeyFileUtils.java

public void InitCiphers() throws NoSuchAlgorithmException, NoSuchProviderException, NoSuchPaddingException,
        InvalidKeyException, InvalidAlgorithmParameterException {
    //1. create the cipher using Bouncy Castle Provider
    encryptCipher = Cipher.getInstance("AES/CBC/PKCS5Padding", new BouncyCastleProvider());
    //2. create the key
    SecretKey keyValue = new SecretKeySpec(key, "AES");
    //3. create the IV
    AlgorithmParameterSpec IVspec = new IvParameterSpec(IV);
    //4. init the cipher
    encryptCipher.init(Cipher.ENCRYPT_MODE, keyValue, IVspec);

    //1 create the cipher
    decryptCipher = Cipher.getInstance("AES/CBC/PKCS5Padding", new BouncyCastleProvider());
    //2. the key is already created
    //3. the IV is already created
    //4. init the cipher
    decryptCipher.init(Cipher.DECRYPT_MODE, keyValue, IVspec);
}

From source file:com.aqnote.shared.cryptology.symmetric.AES.java

private static void generateCipher(String rawKey) {
    try {//from   w  w w  .jav  a2s .c om
        SecretKeySpec keySpec = new SecretKeySpec(rawKey.getBytes(ENCODE_UTF_8), CIPHER_NAME);
        encodeCipher = Cipher.getInstance(CIPHER_NAME);
        encodeCipher.init(Cipher.ENCRYPT_MODE, keySpec);

        decodeCipher = Cipher.getInstance(CIPHER_NAME);
        byte iv[] = encodeCipher.getIV();
        IvParameterSpec ivParameterSpec = new IvParameterSpec(iv);
        decodeCipher.init(Cipher.DECRYPT_MODE, keySpec, ivParameterSpec);
    } catch (InvalidKeyException e) {
        throw new RuntimeException(e);
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    } catch (NoSuchPaddingException e) {
        throw new RuntimeException(e);
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException(e);
    } catch (InvalidAlgorithmParameterException e) {
        e.printStackTrace();
    }

}

From source file:com.forsrc.utils.AesUtils.java

/**
 * Decrypt string./*ww w . ja v a2 s .c  om*/
 *
 * @param code the code
 * @return String string
 * @throws AesException the aes exception
 * @Title: decrypt
 * @Description:
 */
public String decrypt(String code) throws AesException {

    byte[] raw = null;
    try {
        raw = KEY.getBytes(CHARSET_ASCII);
    } catch (UnsupportedEncodingException e) {
        throw new AesException(e);
    }

    SecretKeySpec skeySpec = new SecretKeySpec(raw, SECRET_KEY);

    Cipher cipher = null;
    try {
        cipher = Cipher.getInstance(CIPHER_KEY);
    } catch (NoSuchAlgorithmException e) {
        throw new AesException(e);
    } catch (NoSuchPaddingException e) {
        throw new AesException(e);
    }

    IvParameterSpec iv = new IvParameterSpec(IV_PARAMETER.getBytes());

    try {
        cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
    } catch (InvalidKeyException e) {
        throw new AesException(e);
    } catch (InvalidAlgorithmParameterException e) {
        throw new AesException(e);
    }

    byte[] encrypted = null;
    try {
        encrypted = new Base64().decode(code);
    } catch (Exception e) {
        throw new AesException(e);
    }

    byte[] original = null;
    try {
        original = cipher.doFinal(encrypted);
    } catch (IllegalBlockSizeException e) {
        throw new AesException(e);
    } catch (BadPaddingException e) {
        throw new AesException(e);
    }

    try {
        return new String(original, CHARSET_UTF8);
    } catch (UnsupportedEncodingException e) {
        throw new AesException(e);
    }

}

From source file:org.apache.spark.network.crypto.TransportCipher.java

private CryptoInputStream createInputStream(ReadableByteChannel ch) throws IOException {
    return new CryptoInputStream(cipher, conf, ch, key, new IvParameterSpec(inIv));
}

From source file:ie.peternagy.jcrypto.algo.AesWrapper.java

/**
 * Initialize the cipher//from  w  ww. j  a v a 2  s.  c  o  m
 *
 * @param isEncrypt - true >> encryption
 */
public void initCipher(boolean isEncrypt) {
    try {
        state = isEncrypt;
        cipher = Cipher.getInstance(CIPHER_ALGORITHM);
        cipher.init(isEncrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, secretKey, new IvParameterSpec(iv));
    } catch (GeneralSecurityException e) {
        System.err.println(e);
        throw new RuntimeException("Invalid environment, check max key size xx", e);
    }
}

From source file:com.titilink.camel.rest.util.PasswordUtils.java

/**
 * ??????// ww  w .j a  v  a  2 s  . co  m
 *
 * @param content 
 * @param ivparam ??
 */
private static void initParams(String content, byte[] ivparam) {
    checkParams(content, ivparam);

    if (null == skeySpec) {
        loadKey();
    }

    ivpspec = new IvParameterSpec(ivparam);
}