Papers by Author: Ying Lian Wang

Abstract: This paper analyzed two certificateless signature scheme without bilinear pairings, which pointed out that the Wang scheme had high efficiency, simple algorithm and short signature length, but it had low security. Compared with the Wang scheme, the Chen scheme had high security, but it had high calculation cost, low efficiency and long signature length, which was not practical in wireless network environment requiring low bandwidth. In order to overcome the disadvantages of the two schemes, we proposed a new improved certificateless signature scheme, which had simple calculation, high efficiency and short signature length. We proved the scheme to be secure based on the discrete logarithm problem.

Abstract: This paper proposes a new certificateless forward secure proxy signcryption scheme based on DLP. Compared with other similar schemes, the scheme has overcome key escrow problem in the id-based cryptography and saving certificate problem in PKI cryptography. The scheme has some good nature, such as unforgeability, non-repudiation, strong identifiability, at the same time, it has forward security and verification. Even the adversaries grab the proxy key in the present phase, they can't forge valid previous signcryption.

Abstract: Pure ZnO thin films and Ag doped ZnO thin films were prepared on quartz substrates by sol-gel process. Structural features and UV absorption spectrum have been studied by XRD and UV-Vis-Nir scanning spectrophotometer. Taking phenol as pollutants, further study of the effect of different annealing temperature and Ag dopant amount of ZnO films on photocatalytic properties was carried out. The results showed that, the optimal annealing temperature on photocatalytic degradation of phenol in this experiment was 300 °C, the best molar ratio of ZnO and Ag was 30:1, which was better than pure ZnO film greatly. Excellent adhesion, recyclable and efficient degradation Ag doped ZnO thin films were found in this experiment.

Abstract: ZnO thin films with excellent properties have been prepared on glass substrates and quartz substrates by sol-gel process. Structural features, surface morphology and UV absorption spectrum have been studied by XRD, AFM and UV-Vis-Nir scanning spectrophotometer. The influence of different wavelengths of UV irradiation, different substrates and different annealing temperature on photocatalytic performance have been further studied. The results show that the ZnO thin films prepared on quartz substrates, annealing at 400 ^oC has higher degradation rates. The experiments realize the supported catalysts, easy recycling and good catalytic effect.

Abstract: Highly photoactive ZnO thin films on glass substrates and quartz substrates have been prepared by sol-gel process. Structural features, surface morphology and UV absorption spectrum have been studied by XRD, SEM and UV-Vis scanning spectrophotometer. The influence of degradation temperatures, original concentration of phenol and air flux on degradation rates have also been studied. And the results show the best conditions, degradation temperature is between 25^oC and 45 ^oC, air flux is 40ml/min, the lower original concentration, the higher degradation rates. Excellent adhesion as well as recyclable and efficient in phenol degradation of ZnO thin films were found in this experiment.

Abstract: This paper proposed an applied-information technology in hierarchical network security protocols designing model based on public key, the designing of the protocols is to be completed in several layers. Each sub-protocol achieved a sub-goal that it should complete, and provided data interface to a higher sub-protocol. And then merged the sub-protocol of each layer, to complete the protocols designing. In the previous research, the security of the protocol in applied-information technology was always regarded as a whole, which caused the protocols designing to be tremendous complexity. The hierarchical model in applied-information technology simplifies the process of security protocols designing, and make the protocols designing more clear or less cost, the security proof more simpler.

Abstract: With the vigorous development of Chinese animation industry, animation industry has risen as one of our country's strategic industries. In order to satisfy the strong demand for animation talent, we should adjust current training model. For the problems of the training model of animation design and production, combined with our teaching experience, we put forward an evolutionary training model, which is linking "order style" cultivation with innovation studio.

Abstract: This paper describes some theories on basic designing optimization problem, and then establishes the multi-objective optimization mathematical model of ceramic blank. It transforms the ceramic formulation problem in real-world into a mathematical algorithm problem. It also provides a good theoretical basis for a computer to process ceramic formulation. Finally, we transforms the ceramic blank problem from mathematical problem into matrix equation, solving the quality percentage of each ingredient in the formulation program, which has achieved some good results to a certain extent, but still requires further study.

Abstract: In the recent years, the design and analysis of the security of e-commerce protocol has become a hot scheme. The confidentiality and fairness are important properties to measure the security of the e-commerce. It's also the important prerequisite of the successful protocol. Confidentiality and fairness are the basic properties of the secure e-commerce protocol. But the certified e-mail protocol as one of the e-commerce protocol can't satisfy these properties. This paper points out some drawbacks of teh CMP protocol, and analyses the protocol and makes improvements. The improved CMP protocol satisfies the confidentiality and fairness.

Abstract: This paper researched on Needham-Schroeder symmetric key authentication protocol based on BAN logic. It pointed out the flaw of the protocol which can be used by replay attack and improved the protocol by adding nonce in the transferred message. Then it listed the improved NS authentication protocol. Finally, this paper proved the improved protocol successful and available with BAN logic.