Abtract:By analyzing the genetic algorithm to product form design and limitations of the current situation, based on this principle to join the combination principle. Extracting the characteristic curve shape of different products, using the curve tree to encode the curve, through the tree nodes encoded by the characteristic curve shape implemented crossover, mutation, selection operations, to produce new offspring. An example to verify the proposed method and the feasibility of the imple-mentation process.

A network security evaluation model based on Finite State Automata(FSA)is proposed.According to all kinds of security information and its related properties in the model,the states are used to indicate the security situation of both attack side and defense side;the state transitions are used to indicate the dynamic security situation of the action for both attack side and defense side;the transition diagram is used to describe the transition processes of security status.Experimental results show that the model is more suitable for Network security modeling with simulating the intrusion processes of attackers and the security defense process.