RETRACTED ARTICLE: Encryption scheme with mixed homomorphic signature based on message authentication for digital image

To improve the digital image’s antipollution attack performance, an antipollution attack scheme with mixed homomorphic signature based on message authentication is proposed. Firstly, a model is created for the coding process of the digital image by dint of source node set, non-source code set, and link set of the directed multigraph, and with two types of attack in mind, the network antipollution model is established, i.e., data pollution attack and label pollution attack. Secondly, the MACs and D-MACs as well as homomorphic signature scheme of Sign are used to establish mixed homomorphic signature scheme, improve the message verification process of antipollution attack model, guarantee the integrity of the content in each MAC coding data package, and raise the execution efficiency of the algorithm; lastly, the three indices of percentage of polluted nodes, flow cumulative distribution, and computational efficiency for the proposed algorithm were compared in the experiment in the experimental simulative environment of ASNC mechanism, to verify the performance advantages of the proposed algorithm.