In this paper, elliptic curves Diffie Hellman-Rivest Shamir Adleman algorithm (ECDH-RSA) is a novel encryption method was proposed, which based on ECDH and RSA to secure transmitted data in heterogeneous wireless sensor networks (HWSNs). The proposed built under cheesboard clustering routing (CCRM). CCRM used regulate energy consumption of the nodes. To achieve good scalability performance by u...