Image Encryption for Wireless Sensor Networks with Modified Logistic Map and New Hash Algorithm

Aiming at the limitations of nodes in wireless sensor networks in terms of energy consumption and communication, this paper proposes a symmetric image encryption algorithm with an improved Logistic map. First, the image is scrambled at the bit level to destroy the interference between adjacent pixels, then use non-linear diffusion operations to complete the image encryption; This paper applies the public key cryptosystem and completes the security identity authentication by constructing a new Hash function. Experiments have proved that the proposed image algorithm can effectively resist typical attacks and increase the reliability of sending information between nodes.