Embedded systems are the driving force for most technological development in many domains such as automotive, and healthcare. Almost, 10% of all embedded system products are counterfeit which leads to huge revenue loss. Many strong ciphers have been applied widely, such as DES, AES and RSA. But most of them cannot be directly used to encrypt real-time embedded systems because their encryption speed is not fast enough and they are computationally intensive. A novel and fast chaotic maps algorithm is proposed . The area, power, and delay overhead is much less than conventional encryption methods.