Practical group signatures based on the knowledge signature;

In this scheme, it evolves all participants shares from the sharing secret based on the natural evolution thought, and ensures that any party can verify the correctness of the shares using the method of knowledge signature; In turn, any k shares after verified their validness can restructure the secret based on the theory of solving the linear equations.

The concept of signature of knowledge is adopted in this scheme .

Zhang et al proposed an efficient group signature scheme which was claimed to be more efficient than the well known ACJT scheme,because expensive signature of knowledge,a component in a majority of group signature schemes,was avoided in generating the group signature.

To improve the efficiency of group signature, an efficient and secure dynamic group signature scheme is proposed based on the ELGamal encryption and signature of knowledge.

In this paper,we mainly study on signature functions of knowledge with coefficient,and give out definition and proof of several kinds of signatures of knowledge of discrete logarithm with coefficient.

It can improve speed of the signature by decreasing interactive times during signing when we make use of signatures of knowledge.

An Investigation and Research on Chinese Language Knowledge of a 9-year-old Child;

The Language Knowledge Investigation of a Four-year-old Child;

In view of the problems universally existing in Vocational College English teaching,the paper analyses the relation between language knowledge and communicative ability,and,by discovering the weak points in the English teaching,proposes a new model for the improvement of the teaching method.

The purpose of this paper is to suggest that there are areas of linguistic knowledge which we have tended to neglect or even omit from our teaching in the intermediate and advanced reading comprehension class.

Based on this idea,teachers should give adequate thought to the strategies used in improving students pragmatic competence and encourage students to enrich their linguistic knowledge in order to improve their pragmatic competence.

The article analyzes the existing problems with English teaching at higher vocational colleges,points out that it s necessary to combine the linguistic knowledge with cultural background properly in the teaching so as to enhance the students ability of intercultural communication.