Method decrypt

security/src/main/java/pro/tools/security/ToolDH.java:185–196

解密 @param data 待解密数据 @param key 密钥 @return byte[] 解密数据 @throws Exception

(byte[] data, byte[] key)

     * @throws Exception
     */
    public static byte[] decrypt(byte[] data, byte[] key) throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException, BadPaddingException, IllegalBlockSizeException {

        // 生成本地密钥
        SecretKey secretKey = new SecretKeySpec(key, SECRET_KEY_ALGORITHM);

        // 数据解密
        Cipher cipher = Cipher.getInstance(secretKey.getAlgorithm());

        cipher.init(Cipher.DECRYPT_MODE, secretKey);

        return cipher.doFinal(data);
    }

    /**
     * 构建密钥