Examples with SecretKey javax.crypto.SecretKey used on opensource projects

Example 16 with SecretKey

use of javax.crypto.SecretKey in project DataX by alibaba.

the class SecretUtil method encrypt3DES.

/**
     * 加密 DESede<br>
     * 用密钥加密
     *
     * @param data 裸的原始数据
     * @param key  加密的密钥
     * @return 结果也采用base64加密
     * @throws Exception
     */
public static String encrypt3DES(String data, String key) {
    try {
        // 生成密钥
        SecretKey desKey = new SecretKeySpec(build3DesKey(key), KEY_ALGORITHM_3DES);
        // 对数据加密
        Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM_3DES);
        cipher.init(Cipher.ENCRYPT_MODE, desKey);
        return encryptBASE64(cipher.doFinal(data.getBytes(ENCODING)));
    } catch (Exception e) {
        throw DataXException.asDataXException(FrameworkErrorCode.SECRET_ERROR, "3重DES加密出错", e);
    }
}

Example 17 with SecretKey

use of javax.crypto.SecretKey in project DataX by alibaba.

the class DESCipher method decrypt.

/**
	 * 　　* 解密
	 *
	 * 　　*
	 *
	 * 　　* @param src
	 *
	 * 　　* 密文(字节)
	 *
	 * 　　* @param key
	 *
	 * 　　* 密钥，长度必须是8的倍数
	 *
	 * 　　* @return 明文(字节)
	 *
	 * 　　* @throws Exception
	 *
	 * 　　
	 */
public static byte[] decrypt(byte[] src, byte[] key) throws Exception {
    // DES算法要求有一个可信任的随机数源
    SecureRandom sr = new SecureRandom();
    // 从原始密匙数据创建一个DESKeySpec对象
    DESKeySpec dks = new DESKeySpec(key);
    // 创建一个密匙工厂，然后用它把DESKeySpec对象转换成
    // 一个SecretKey对象
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(DES);
    SecretKey securekey = keyFactory.generateSecret(dks);
    // Cipher对象实际完成解密操作
    Cipher cipher = Cipher.getInstance(DES);
    // 用密匙初始化Cipher对象
    cipher.init(Cipher.DECRYPT_MODE, securekey, sr);
    return cipher.doFinal(src);
}

Example 18 with SecretKey

use of javax.crypto.SecretKey in project DataX by alibaba.

the class DESCipher method encrypt.

/**
	 * 　　* 加密
	 *
	 * 　　*
	 *
	 * 　　* @param src
	 *
	 * 　　* 明文(字节)
	 *
	 * 　　* @param key
	 *
	 * 　　* 密钥，长度必须是8的倍数
	 *
	 * 　　* @return 密文(字节)
	 *
	 * 　　* @throws Exception
	 *
	 * 　　
	 */
public static byte[] encrypt(byte[] src, byte[] key) throws Exception {
    // DES算法要求有一个可信任的随机数源
    SecureRandom sr = new SecureRandom();
    // 从原始密匙数据创建DESKeySpec对象
    DESKeySpec dks = new DESKeySpec(key);
    // 创建一个密匙工厂，然后用它把DESKeySpec转换成
    // 一个SecretKey对象
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(DES);
    SecretKey securekey = keyFactory.generateSecret(dks);
    // Cipher对象实际完成加密操作
    Cipher cipher = Cipher.getInstance(DES);
    // 用密匙初始化Cipher对象
    cipher.init(Cipher.ENCRYPT_MODE, securekey, sr);
    return cipher.doFinal(src);
}

Example 19 with SecretKey

use of javax.crypto.SecretKey in project DataX by alibaba.

the class DESCipher method decrypt.

/**
	 * 　　* 解密
	 *
	 * 　　*
	 *
	 * 　　* @param src
	 *
	 * 　　* 密文(字节)
	 *
	 * 　　* @param key
	 *
	 * 　　* 密钥，长度必须是8的倍数
	 *
	 * 　　* @return 明文(字节)
	 *
	 * 　　* @throws Exception
	 *
	 * 　　
	 */
public static byte[] decrypt(byte[] src, byte[] key) throws Exception {
    // DES算法要求有一个可信任的随机数源
    SecureRandom sr = new SecureRandom();
    // 从原始密匙数据创建一个DESKeySpec对象
    DESKeySpec dks = new DESKeySpec(key);
    // 创建一个密匙工厂，然后用它把DESKeySpec对象转换成
    // 一个SecretKey对象
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(DES);
    SecretKey securekey = keyFactory.generateSecret(dks);
    // Cipher对象实际完成解密操作
    Cipher cipher = Cipher.getInstance(DES);
    // 用密匙初始化Cipher对象
    cipher.init(Cipher.DECRYPT_MODE, securekey, sr);
    return cipher.doFinal(src);
}

Example 20 with SecretKey

use of javax.crypto.SecretKey in project Android-Terminal-Emulator by jackpal.

the class ShortcutEncryption method generateKeys.

/**
     * Generates new secret keys suitable for the encryption scheme described
     * above.
     *
     * @throws GeneralSecurityException if an error occurs during key generation.
     */
public static Keys generateKeys() throws GeneralSecurityException {
    KeyGenerator gen = KeyGenerator.getInstance(ENC_ALGORITHM);
    gen.init(KEYLEN);
    SecretKey encKey = gen.generateKey();
    /* XXX: It's probably unnecessary to create a different keygen for the
         * MAC, but JCA's API design suggests we should just in case ... */
    gen = KeyGenerator.getInstance(MAC_ALGORITHM);
    gen.init(KEYLEN);
    SecretKey macKey = gen.generateKey();
    return new Keys(encKey, macKey);
}